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git-svn-id: svn://tug.org/texlive/trunk@613 c570f23f-e606-0410-a88d-b1316a301751

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diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfbaseimage.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfbaseimage.code.tex
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+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfbaseimage.code.tex,v 1.2 2005/07/06 15:58:57 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+
+% Declare an image
+%
+% #1 = optional argument: width, height, page specification
+% #2 = name of the image for later use
+% #4 = filename without extension, automatic extensions are .pdf,
+%      .jpg, and .png for PDF and .ps, .eps, .epsi for postscript.
+%
+% Description:
+%
+% This command declares an image file for later use. Even if the image
+% is used several times in the document, in PDF it will only be stored
+% once. 
+%
+% Example:
+%
+% \pgfdeclareimage[width=2cm,page=2]{myimage}{imagefilename}
+
+\def\pgfdeclareimage{\@ifnextchar[{\pgf@declareimage}{\pgf@declareimage[]}}
+\def\pgf@declareimage[#1]#2#3{%
+  \setkeys{pgfimage}{height=,width=,page=,interpolate=false,mask=}% defaults
+  \setkeys{pgfimage}{#1}%
+  % Try to find the file
+  \gdef\pgf@filename{}%
+  % If page= parameter is not empty, try that file first:
+  \ifx\pgf@imagepage\@empty%
+  \else%
+  \expandafter\pgf@findfile\pgfsys@imagesuffixlist:+{#3.page\pgf@imagepage}%
+  \fi%
+  \ifx\pgf@filename\@empty%
+    \expandafter\pgf@findfile\pgfsys@imagesuffixlist:+{#3}%
+  \else%
+    \setkeys{pgfimage}{page=}% make page empty     
+  \fi%
+  \ifx\pgf@filename\@empty%
+    \PackageWarning{pgf}%
+    {File "#3" not found when defining image "#2".\MessageBreak
+      Tried all extensions in "\pgfsys@imagesuffixlist"}%
+    \pgf@declaredraftimage{#2}%
+  \else%
+    \ifpgf@draftmode%
+      \pgf@declaredraftimage{#2}%
+    \else%
+      \pgfsys@defineimage%
+    \fi%
+  \fi%
+  \expandafter\global\expandafter\let\csname pgf@image@#2!\endcsname=\pgf@image%
+}
+
+\define@key{pgfimage}{width}{\edef\pgf@imagewidth{#1}}
+\define@key{pgfimage}{height}{\edef\pgf@imageheight{#1}}
+\define@key{pgfimage}{page}{\edef\pgf@imagepage{#1}}
+\define@key{pgfimage}{interpolate}[true]{\edef\pgf@imageinterpolate{/Interpolate #1}}
+\define@key{pgfimage}{mask}{%
+  \edef\pgf@imagemask{#1}%
+  \ifx\pgf@imagemask\@empty%
+  \else%
+    \@ifundefined{pgf@mask@#1}%
+    {\PackageError{pgf}{Undefined mask "#1".}{}%
+      \edef\pgf@imagemask{}}%
+    {\edef\pgf@imagemask{\csname pgf@mask@#1\endcsname}%
+      \ifx\pgf@imagemask\@empty%
+      \else
+      \edef\pgf@imagemask{/SMask \pgf@imagemask\space 0 R}%
+      \fi}%
+    \fi}
+
+\def\pgf@findfile#1:#2+#3{%
+  \IfFileExists{#3.#1}%
+  {\xdef\pgf@filename{#3.#1}}%
+  {\def\pgf@mightbeempty{#2}%
+    \ifx\pgf@mightbeempty\@empty\else%
+    \pgf@findfile#2+{#3}%
+    \fi}}
+
+\def\pgf@declaredraftimage#1{%
+  \ifx\pgf@imagewidth\@empty%
+    \PackageWarning{pgf}{Missing width for image "#1" in draft mode.\MessageBreak  Using 1cm instead}%
+    \edef\pgf@imagewidth{1cm}%
+  \fi%
+  \ifx\pgf@imageheight\@empty%
+    \PackageWarning{pgf}{Missing height for image "#1" in draft mode.\MessageBreak Using 1cm instead}%
+    \edef\pgf@imageheight{1cm}%
+  \fi%  
+  \ifx\pgf@imagepage\@empty\else\edef\pgf@imagepagetext{ page \pgf@imagepage}\fi%
+  \edef\pgf@image{%
+    \hbox to \pgf@imagewidth{%
+      \vrule\kern-0.4pt%
+      \vbox to \pgf@imageheight{%
+        \hrule\vfil%
+        \hbox to \pgf@imagewidth{\hskip-10cm\hfil\noexpand\tiny#1\pgf@imagepage\hfil\hskip-10cm}%
+        \vfil\hrule}%
+      \kern-0.4pt\vrule}%
+  }%
+}
+
+
+
+% Declare a soft mask
+%
+% #1 = optional argument: matte specification. default matte is
+%      white. 
+% #2 = name of the mask for later use
+% #3 = filename without extension, automatic extensions are .pdf,
+%      .jpg, and .png for PDF. Postscript is not supported.
+%
+% Description:
+%
+% This command declares a soft mask for later masking an image. The
+% declared mask should be used together with an image of exactly the
+% same height/width if matte is defined. Matte should be the
+% preblended background color (see pdf spec for details).
+%
+% Example:
+%
+% \pgfdeclaremask[matte=white]{maskname}{maskfilename}
+% \pgfdeclareimage[mask=maskname]{image}{imagefilename}
+
+\def\pgfdeclaremask{\@ifnextchar[\pgf@declaremask{\pgf@declaremask[]}}
+\def\pgf@declaremask[#1]#2#3{%
+  \setkeys{pgfmask}{matte={1 1 1}}% defaults
+  \setkeys{pgfmask}{#1}%
+  \def\pgf@mask{}%
+  % Try to find the file
+  \gdef\pgf@filename{}%
+  \expandafter\pgf@findfile\pgfsys@imagesuffixlist:+{#3}%
+  \ifx\pgf@filename\@empty%
+    \PackageWarning{pgf}%
+    {File "#3" not found when defining mask "#2".\MessageBreak
+      Tried all extensions in "\pgfsys@imagesuffixlist"}%
+  \else%
+    \pgfsys@definemask%
+  \fi%
+  \expandafter\global\expandafter\let\csname pgf@mask@#2\endcsname=\pgf@mask%
+}
+
+\define@key{pgfmask}{matte}{\edef\pgf@maskmatte{#1}}
+
+
+
+
+% Create an alias name for an image
+%
+% #1 = name of the alias
+% #2 = name of the original
+%
+% Example:
+%
+% \pgfdeclareimage{image}{1cm}{1cm}{filename
+% \pgfaliasimage{alias}{image}
+% \pgfuseimage{alias}
+
+\def\pgfaliasimage#1#2{%
+  \expandafter\global\expandafter\let\expandafter\pgf@temp\expandafter=\csname pgf@image@#2!\endcsname%
+  \expandafter\global\expandafter\let\csname pgf@image@#1!\endcsname=\pgf@temp%
+  }
+
+  
+% Use an image
+%
+% #1 = name of a previously declared image
+%
+% Example:
+%
+% \pgfputat{\pgforigin}{\pgfbox[left,base]{\pgfuseimage{myimage}}}
+
+\def\pgfuseimage#1{%
+  \def\pgf@imagename{pgf@image@#1}%
+  \pgf@tryextensions{\pgf@imagename}{\pgfalternateextension}%
+  \expandafter\@ifundefined\expandafter{\pgf@imagename}%
+  {\PackageError{pgf}{Undefined image "#1"}{}}%
+  {{\leavevmode\csname\pgf@imagename\endcsname}}}
+
+\def\pgf@tryextensions#1#2{%
+  \edef\pgf@args{[#2!]}\expandafter\pgf@@tryextensions\pgf@args{#1}}
+\def\pgf@@tryextensions[#1!#2]#3{%
+  \expandafter\@ifundefined\expandafter{#3.#1!#2}%
+  {\def\pgf@temp{#2}%
+    \ifx\pgf@temp\@empty%
+    \edef#3{#3!}%
+    \else%
+    \pgf@@tryextensions[#2]{#3}%
+    \fi}%
+  {\edef#3{#3.#1!#2}}}
+
+
+% Alternate image
+%
+% Description:
+%
+% When an image is used, pgf first attempts to use the image with the
+% alternate extension added. If this fails, the original image is
+% used. If the alternate extension contains ``!'', then the text up to
+% the ! is successively removed and the remainder is tried as an
+% alternate extension.
+%
+% Example:
+%
+% \def\pgfalternateextension{20!white}
+
+\def\pgfalternateextension{}
+
+
+
+% Directly insert an image
+%
+% #1 = optional argument: width, height, page specification
+% #2 = file name
+%
+% Description:
+%
+% Directly inserts an image without declaration. You can, however,
+% still access this image using the name pgflastimage. By using
+% pgfaliasimage, you can also save this image for later.
+%
+% Example:
+%
+% \pgfimage[height=2cm]{filename}
+
+\def\pgfimage{\@ifnextchar[\pgf@imagecom{\pgf@imagecom[]}}
+\def\pgf@imagecom[#1]#2{%
+  \pgfdeclareimage[#1]{pgflastimage}{#2}%
+  \pgfuseimage{pgflastimage}}
+
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfbaselayers.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfbaselayers.code.tex
new file mode 100644
index 00000000000..8e6e97b8017
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfbaselayers.code.tex
@@ -0,0 +1,127 @@
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfbaselayers.code.tex,v 1.1 2005/08/13 18:59:56 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+% Creates a new pgf layer
+%
+% #1 = layer name
+%
+% Declares a new layer for pgf.
+%
+% Example:
+%
+% \pgfdeclarelayer{background}
+
+\def\pgfdeclarelayer#1{%
+  \expandafter\newbox\csname pgf@layerbox@#1\endcsname%
+  \expandafter\newbox\csname pgf@layerboxsaved@#1\endcsname%
+}
+
+
+% Sets the layers that compose the picture
+%
+% #1 = List of layers
+%
+% Description:
+%
+% Sets the list of layers that make up the picture. The layers will be
+% put on top of each other in the order given. 
+%
+% Example:
+%
+% \pgfsetlayers{background,main}
+
+\def\pgfsetlayers#1{\edef\pgf@layerlist{#1}}
+\pgfsetlayers{main}
+
+
+
+% Adds code to a layer
+%
+% #1 = layer name
+%
+% Note:
+%
+% You cannot anything to the ``main'' layer using this command.
+%
+% Example:
+%
+% \begin{pgfonlayer}{background}
+%   \fill[red] (0,0) -- (1,1);
+% \end{pgfonlayer}
+
+\def\pgfonlayer#1{%
+  \expandafter\global\expandafter%
+  \setbox\csname pgf@layerbox@#1\endcsname=\hbox to 0pt%
+    \bgroup%
+      \expandafter\box\csname pgf@layerbox@#1\endcsname%
+      \begingroup%
+}
+\def\endpgfonlayer{%
+      \endgroup%
+      \hss
+    \egroup%
+}
+
+
+
+
+% Hooks into the scoping:
+
+\def\pgf@insertlayers{%
+  \expandafter\pgf@dolayer\pgf@layerlist,,\relax%
+}
+\def\pgf@maintext{main}%
+\def\pgf@dolayer#1,#2,\relax{%
+  \def\pgf@test{#1}%
+  \ifx\pgf@test\pgf@maintext%
+    \box\pgf@layerbox@main%
+  \else%
+    \pgfsys@beginscope%
+      \expandafter\box\csname pgf@layerbox@#1\endcsname%
+    \pgfsys@endscope%
+  \fi%
+  \def\pgf@test{#2}%
+  \ifx\pgf@test\@empty%
+  \else%
+    \pgf@dolayer#2,\relax%
+  \fi%
+}
+
+\def\pgf@savelayers{%
+  \expandafter\pgf@dosavelayer\pgf@layerlist,,\relax%
+}
+\def\pgf@dosavelayer#1,#2,\relax{%
+  \def\pgf@test{#1}%
+  \ifx\pgf@test\pgf@maintext%
+  \else%
+    \setbox\csname pgf@layerboxsaved@#1\endcsname=\box\csname pgf@layerbox@#1\endcsname%
+  \fi%
+  \def\pgf@test{#2}%
+  \ifx\pgf@test\@empty%
+  \else%
+    \pgf@dosavelayer#2,\relax%
+  \fi%
+}
+
+\def\pgf@restorelayers{%
+  \expandafter\pgf@dorestorelayer\pgf@layerlist,,\relax%
+}
+\def\pgf@dorestorelayer#1,#2,\relax{%
+  \def\pgf@test{#1}%
+  \ifx\pgf@test\pgf@maintext%
+  \else%
+    \global\setbox\csname pgf@layerbox@#1\endcsname=\box\csname pgf@layerboxsaved@#1\endcsname%
+  \fi%
+  \def\pgf@test{#2}%
+  \ifx\pgf@test\@empty%
+  \else%
+    \pgf@dorestorelayer#2,\relax%
+  \fi%
+}
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfbaseplot.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfbaseplot.code.tex
new file mode 100644
index 00000000000..f3d9e4f49a7
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfbaseplot.code.tex
@@ -0,0 +1,321 @@
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfbaseplot.code.tex,v 1.2 2005/07/06 15:58:57 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+% PGF's plotting interface works as follows:
+%
+% In order to plot something, two things need to be done. First, you
+% need to provide the coordinates (obviously) of the points that
+% should be plotted. The coordinates are given via a long stream of
+% commands. These commands are \pgfplotstreamstart, which is
+% given exactly once at the beginning, \pgfplotstreampoint, of which there
+% are numerous in the middle, \pgfplotstreamspecial, of which there may be
+% numerous in the middle, and \pgfplotstreamend, which must be given
+% at the end. Between these commands arbitrary other commands may be
+% given. Here is an example:
+%
+% ...
+% \pgfplotstreamstart
+% \pgfplotstreampoint{\pgfpointxy{0}{0}}
+% \pgfplotstreampoint{\pgfpointxy{1}{1}}
+% \pgfplotstreampoint{\pgfpointxy{2}{4}}
+% \relax
+% \pgfplotstreampoint{\pgfpointxy{3}{9}}
+% \pgfplotstreamspecial{some handler-dependent special stuff}
+% \pgfplotstreamend
+%
+% By themselves, the \pgfplotstreamxxxx commands do not do anything by
+% default. Rather, the ``use'' such a stream, you must first install a
+% stream handler. For example, the ``lineto'' handler will simply
+% translate every \pgfplotstreampoint into a \pgfpathlineto.
+%
+% Example:
+%
+% \pgfpathmoveto{\pgfpointorigin}
+%
+% \pgfplothandlerlineto
+% \pgfplotstreamstart
+% \pgfplotstreampoint{\pgfpointxy{0}{0}}
+% \pgfplotstreampoint{\pgfpointxy{1}{1}}
+% \pgfplotstreampoint{\pgfpointxy{2}{4}}
+% \relax
+% \pgfplotstreampoint{\pgfpointxy{3}{9}}
+% \pgfplotstreamend
+
+
+% The stream commands actually call their ``internal'' versions, which
+% are set by the handlers:
+\def\pgfplotstreamstart{\pgf@plotstreamstart}
+\def\pgfplotstreampoint#1{\gdef\pgfplotlastpoint{#1}\pgf@plotstreampoint{#1}}
+\def\pgfplotstreamspecial{\pgf@plotstreamspecial}
+\def\pgfplotstreamend{\pgf@plotstreamend}
+
+
+
+
+% Sets the action taken for the first point of a plot to a lineto.
+%
+% Description:
+%
+% For certain handlers it makes sense either the start a plot by
+% moving to the first point of the plot or to do a lineto to that
+% first point. Using this command this action can be set to a lineto. 
+%
+% Example:
+%
+% \pgfsetlinetofirstplotpoint
+
+\def\pgfsetlinetofirstplotpoint{\let\pgf@plot@first@action=\pgfpathlineto}
+
+
+% Sets the action taken for the first point of a plot to a moveto.
+%
+% Example:
+%
+% \pgfsetmovetofirstplotpoint
+
+\def\pgfsetmovetofirstplotpoint{\let\pgf@plot@first@action=\pgfpathmoveto}
+
+\let\pgf@plot@first@action=\pgfpathmoveto
+
+
+
+%
+% Handlers
+%
+
+
+% This handler converts each plot stream command into a lineto
+% command, except for the first, which is converted to the action that
+% has previously been specified using \pgfsetlinetofirstplotpoint or
+% \pgfsetmovetofirstplotpoint. 
+%
+% Example:
+%
+% \pgfplothandlerlineto
+% \pgfplotxyfile{mytable}
+
+\def\pgfplothandlerlineto{%
+  \def\pgf@plotstreamstart{%
+    \global\let\pgf@plotstreampoint=\pgf@plot@line@handler%
+    \global\let\pgf@plotstreamspecial=\@gobble%
+    \global\let\pgf@plotstreamend=\relax%
+  }%
+}
+
+\def\pgf@plot@line@handler#1{%
+  \pgf@plot@first@action{#1}%
+  \global\let\pgf@plotstreampoint=\pgfpathlineto%
+}
+
+
+
+% More handlers are defined in pgflibraryplothandlers
+
+
+
+
+
+% This handler discards the plot.
+%
+% Example:
+%
+% \pgfplothandlerdiscard
+% \pgfplotxyfile{mytable}
+
+\def\pgfplothandlerdiscard{%
+  \def\pgf@plotstreamstart{%
+    \global\let\pgf@plotstreampoint=\@gobble%
+    \global\let\pgf@plotstreamspecial=\@gobble%
+    \global\let\pgf@plotstreamend=\relax%
+  }%
+}
+
+
+
+
+% This handler records each plot stream command to a macro. This is
+% useful if plot commands are difficult to generate and need to be
+% ``recylced'' later on.
+%
+% Example:
+%
+% \pgfplothandlerrecord{\myplot}
+% \pgfplotxyfile{mytable}  % stored in \myplot now
+% \pgfplothandlerline
+% \myplot
+% \pgftransformxshift{1cm}
+% \myplot
+
+\def\pgfplothandlerrecord#1{%
+  \def\pgf@plot@recordto{#1}%
+  \gdef#1{\pgfplotstreamstart}%
+  \def\pgf@plotstreamstart{%
+    \gdef\pgf@plotstreampoint####1{\expandafter\gdef\expandafter#1\expandafter{#1\pgfplotstreampoint{####1}}}%
+    \gdef\pgf@plotstreamspecial####1{\expandafter\gdef\expandafter#1\expandafter{#1\pgfplotstreamspecial{####1}}}%
+    \gdef\pgf@plotstreamend{\expandafter\gdef\expandafter#1\expandafter{#1\pgfplotstreamend}}%
+  }%
+}
+
+
+
+% Read a plot stream from a file and plot it.
+%
+% #1 = file from which to read things
+%
+% File format:
+%
+% Each line of the file should begin with two numbers separated by a
+% space. Such a line with number #1 and #2 is converted to a
+% \pgfplotstreampoint{\pgfpointxy{#1}{#2}}. Extra characters following
+% on the line are ignored.
+%
+% Lines starting with ``%'' and ``#'' are ignored.
+%
+% Example:
+%
+% \pgfplotxyfile{tableformgnuplot.dat}
+
+\def\pgfplotxyfile#1{%
+  \begingroup%
+    \pgfplotstreamstart%
+    \openin1=#1
+    \ifeof1
+      \PackageWarning{pgf}{Plot data file `#1' not found.}
+     \else
+      \catcode`\#=14
+      \pgf@readxyfile%
+    \fi
+    \pgfplotstreamend%    
+  \endgroup%
+}
+
+\def\pgf@partext{\par}
+\def\pgf@readxyfile{%
+  \read1 to \pgf@temp%
+  \let\par=\@@par%
+  \edef\pgf@temp{\pgf@temp}%
+  \ifx\pgf@temp\@empty%
+  \else\ifx\pgf@temp\pgf@partext%
+  \else%
+    \expandafter\pgf@parsexyline\pgf@temp\pgf@stop%
+  \fi\fi%
+  \ifeof1\else\expandafter\pgf@readxyfile\fi%
+}
+
+\def\pgf@parsexyline#1 #2 #3\pgf@stop{%
+  \pgfplotstreampoint{\pgfpointxy{#1}{#2}}%
+}
+
+
+
+
+
+% Read a plot stream from a file and plot it.
+%
+% #1 = file from which to read things
+%
+% File format:
+%
+% Like xy, except that each line contains three numbers, which are
+% converted to xyz coordiantes.
+%
+% Example:
+%
+% \pgfplotxyfile{tableformgnuplot.dat}
+
+\def\pgfplotxyzfile#1{%
+  \begingroup%
+    \pgfplotstreamstart%
+    \openin1=#1
+    \ifeof1
+      \PackageWarning{pgf}{Plot data file `#1' not found.}
+    \else
+      \catcode`\#=14
+      \pgf@readxyzfile%
+    \fi
+    \pgfplotstreamend%    
+  \endgroup%
+}
+
+\def\pgf@readxyzfile{%
+  \read1 to \pgf@temp%
+  \ifx\pgf@temp\@empty%
+  \else\ifx\pgf@temp\pgf@partext%
+  \else%
+    \expandafter\pgf@parsexyzline\pgf@temp\pgf@stop%
+  \fi\fi%
+  \ifeof1\else\expandafter\pgf@readxyzfile\fi%
+}
+
+\def\pgf@parsexyzline#1 #2 #3 #4\pgf@stop{%
+  \pgfplotstreampoint{\pgfpointxyz{#1}{#2}{#3}}%
+}
+
+
+
+
+% Render a function using gnuplot.
+%
+% #1 = filename prefix for .gnuplot and .table files (optional,
+%      default is \jobname)
+% #2 = gnuplot function text
+%
+% Description:
+%
+% This command will write a file called #1.gnuplot that sets up
+% some gnuplot commands to write output to a file called
+% #1.table. Then it calls gnuplot (using the \write18 mechanism)
+% to execute the file. Then it reads #2.table using \pgfplotxyfile.
+%
+% Example:
+%
+% \pgfplothandlerlineto
+% \pgfplotgnuplot[\jobname]{plot [x=0:5] x*sin(x)}
+
+{
+  \catcode`\%=12
+  \catcode`\"=12
+  \xdef\pgf@gnuplot@head#1{set terminal table; set output "#1.table"; set format "%.5f"}
+}
+
+\newwrite\pgf@plotwrite
+\newif\ifpgf@resample@plot
+
+\def\pgfplotgnuplot{\@ifnextchar[{\pgf@plotgnuplot}{\pgf@plotgnuplot[\jobname]}}%}
+\def\pgf@plotgnuplot[#1]#2{%
+  \pgf@resample@plottrue%
+  % Check, whether it is up-to-date
+  \openin\@inputcheck=#1.gnuplot
+  \ifeof\@inputcheck%
+  \else%
+    \read\@inputcheck to\pgf@temp% ignored
+    \read\@inputcheck to\pgf@plot@line%
+    \edef\pgf@plot@code{#2\space}%
+    \ifx\pgf@plot@code\pgf@plot@line%
+      \openin\@inputcheck=#1.table
+      \ifeof\@inputcheck%
+      \else%
+        \pgf@resample@plotfalse%
+      \fi%
+    \fi%
+  \fi
+  \ifpgf@resample@plot%  
+    \immediate\openout\pgf@plotwrite=#1.gnuplot
+    \immediate\write\pgf@plotwrite{\pgf@gnuplot@head{#1}}%
+    \immediate\write\pgf@plotwrite{#2}%
+    \immediate\closeout\pgf@plotwrite%
+    \immediate\write18{gnuplot #1.gnuplot}
+  \fi%
+  \pgfplotxyfile{#1.table}
+}
+
+
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfbaseshapes.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfbaseshapes.code.tex
new file mode 100644
index 00000000000..494f328994d
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfbaseshapes.code.tex
@@ -0,0 +1,824 @@
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfbaseshapes.code.tex,v 1.9 2005/10/13 10:12:31 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+\newbox\pgfnodeparttextbox
+
+
+% Creates a node
+%
+% #1 = shape type
+% #2 = anchor
+% #3 = name for later reference
+% #4 = path usage command
+%
+% Description:
+%
+% This command draws a shape that has previously been defined using
+% \pgfdeclareshape. The shape is shifted such that the anchor is at
+% the origin. In order to transform the whole shape, you should setup
+% pgf's transformation matrix prior to calling this command.
+%
+% When this command is called, the shape-specific TeX boxes of the
+% node must be have been setup correctly.
+%
+% Example:
+%
+% \pgftransformshift{\pgfpoint{1cm}{1cm}}
+% \pgfmultipartnode{rectangle}{center}{Hello}{hellonode}{\pgfusepath{stroke}}
+
+\def\pgfmultipartnode#1#2#3#4{%
+  \@ifundefined{pgf@sh@s@#1}%
+  {\PackageError{pgf}{Unknown shape ``#1''}{}}%
+  {%
+    {%
+      \let\pgf@sh@savedpoints=\@empty%
+      \csname pgf@sh@s@#1\endcsname%
+      \pgf@sh@savedpoints%
+      \pgftransformshift{%
+        \pgf@sh@reanchor{#1}{#2}%
+        \pgf@x=-\pgf@x%
+        \pgf@y=-\pgf@y%
+      }%
+      % Save the saved points and the transformation matrix
+      \edef\pgf@test{#3}%
+      \ifx\pgf@test\@empty%
+      \else%
+        \expandafter\xdef\csname pgf@sh@ns@#3\endcsname{#1}%
+        \edef\pgf@sh@@temp{\noexpand\gdef\expandafter\noexpand\csname pgf@sh@np@#3\endcsname}%
+        \expandafter\pgf@sh@@temp\expandafter{\pgf@sh@savedpoints}%
+        \pgfgettransform\pgf@temp
+        \expandafter\xdef\csname pgf@sh@nt@#3\endcsname{\pgf@temp}%
+      \fi%
+      \@ifundefined{pgf@sh@bbg@#1}{}
+      {{\pgfscope\csname pgf@sh@bbg@#1\endcsname\endpgfscope}}%
+      \@ifundefined{pgf@sh@bg@#1}{}%
+      {\csname pgf@sh@bg@#1\endcsname#4}%
+      \@ifundefined{pgf@sh@fbg@#1}{}
+      {{\pgfscope\csname pgf@sh@fbg@#1\endcsname\endpgfscope}}%
+      {%
+        \expandafter\@for\expandafter\pgf@shape@com\expandafter:\expandafter=\csname pgf@sh@boxes@#1\endcsname\do{%
+          {%
+            \pgftransformshift{\pgf@sh@reanchor{#1}{\pgf@shape@com}}%
+            \expandafter\pgfqboxsynced\expandafter{\csname pgfnodepart\pgf@shape@com box\endcsname}%
+          }%
+        }%
+      }%
+      \@ifundefined{pgf@sh@bfg@#1}{}%
+      {{\pgfscope\csname pgf@sh@bfg@#1\endcsname\endpgfscope}}%
+      \@ifundefined{pgf@sh@fg@#1}{}%
+      {\csname pgf@sh@fg@#1\endcsname#4}%
+      \@ifundefined{pgf@sh@ffg@#1}{}%
+      {{\pgfscope\csname pgf@sh@ffg@#1\endcsname\endpgfscope}}%
+    }%
+  }%
+}
+
+
+% Creates a node
+%
+% #1 = shape type
+% #2 = anchor
+% #3 = normal TeX text
+% #4 = name for later reference
+% #5 = path usage command
+%
+% Description:
+%
+% This command draws a shape that has previously been defined using
+% \pgfdeclareshape. The shape is shifted such that the anchor is at
+% the origin. In order to transform the whole shape, you should setup
+% pgf's transformation matrix prior to calling this command.
+%
+% Example:
+%
+% \pgftransformshift{\pgfpoint{1cm}{1cm}}
+% \pgfnode{rectangle}{center}{Hello}{hellonode}{\pgfusepath{stroke}}
+
+\def\pgfnode#1#2#3#4#5{%
+  {%
+    \setbox\pgfnodeparttextbox=\hbox%
+    {%
+      \pgfinterruptpicture%
+        {#3}%
+      \endpgfinterruptpicture%
+    }%
+    \pgfmultipartnode{#1}{#2}{#4}{#5}%
+  }
+}  
+
+\def\pgf@sh@resavedanchor#1#2{%
+  \pgf@process{#2}%
+  \edef\pgf@sh@marshal{%
+    \noexpand\g@addto@macro\noexpand\pgf@sh@savedpoints{%
+      \noexpand\def\noexpand#1{\noexpand\pgfpoint{\the\pgf@x}{\the\pgf@y}}%
+    }}%
+  \pgf@sh@marshal%
+}
+
+
+\def\pgf@sh@resaveddimen#1#2{%
+  {#2\global\pgf@x=\pgf@x}%
+  \edef\pgf@sh@marshal{%
+    \noexpand\g@addto@macro\noexpand\pgf@sh@savedpoints{%
+      \noexpand\def\noexpand#1{\the\pgf@x}%
+    }}%
+  \pgf@sh@marshal%
+}
+
+% Invoke an anchor
+\def\pgf@sh@reanchor#1#2{%
+  \@ifundefined{pgf@anchor@#1@#2}%
+  {%
+    \setcounter{pgf@counta}{#2}%
+    \csname pgf@anchor@#1@border\endcsname{\pgfpointpolar{\c@pgf@counta}{1pt}}%
+  }%
+  {\csname pgf@anchor@#1@#2\endcsname}%
+}
+
+
+
+% Retrieves an anchor of a shape
+%
+% #1 = name
+% #2 = anchor or a number (corresponding to a degree)
+%
+% Description:
+%
+% This command yields a point at the anchor of the given named shape.
+%
+% Example:
+%
+% \pgfshape{rectangle}{center}{Hello}{hellonode}{\pgfusepath[stroke]}
+% \pgfpathmoveto{\pgfpointanchor{hellonode}{center}}
+
+\def\pgfpointanchor#1#2{%
+  % Ok, check whether #1 is known!
+  \@ifundefined{pgf@sh@ns@#1}
+  {\PackageError{pgf}{No shape named #1 is known}{}%
+    \pgfpointorigin}%
+  {%
+    \pgf@process{%
+      % install special coordinates
+      \csname pgf@sh@np@#1\endcsname
+      \pgf@sh@reanchor{\csname pgf@sh@ns@#1\endcsname}{#2}%
+      {%
+        \pgfsettransform{\csname pgf@sh@nt@#1\endcsname}%
+        \pgf@pos@transform{\pgf@x}{\pgf@y}%
+        \global\pgf@x=\pgf@x%
+        \global\pgf@y=\pgf@y%
+      }%
+      % Undo current transformation
+      \pgftransforminvert%
+      \pgf@pos@transform{\pgf@x}{\pgf@y}%
+    }%
+  }%
+}
+
+
+
+% Retrieves a border point of a shape
+%
+% #1 = name
+% #2 = another point
+%
+% Description:
+%
+% This command yields a point on the border of the shape that is on a
+% straight line from the center to the point #2.
+%
+% Example:
+%
+% \pgfshape{rectangle}{center}{Hello}{hellonode}{\pgfusepath[stroke]}
+% \pgfpathmoveto{\pgfpointshapeborder{hellonode}{\pgfpoint{2cm}{1cm}}
+% \pgfpathlineto{\pgfpoint{2cm}{1cm}}
+% \pgfusepath{stroke}
+
+\def\pgfpointshapeborder#1#2{%
+  % Ok, check whether #1 is known!
+  \@ifundefined{pgf@sh@ns@#1}
+  {\PackageError{pgf}{No shape named #1 is known}{}%
+    \pgfpointorigin}%
+  {%
+    \pgf@process{%
+      % install special coordinates
+      \csname pgf@sh@np@#1\endcsname%
+      {%
+        \pgf@process{\pgfpointtransformed{#2}}%
+        \pgfsettransform{\csname pgf@sh@nt@#1\endcsname}%
+        \pgftransforminvert%
+        \pgf@pos@transform{\pgf@x}{\pgf@y}%
+        \pgf@xa=\pgf@x%
+        \pgf@ya=\pgf@y%
+        \pgf@process{\csname pgf@anchor@\csname pgf@sh@ns@#1\endcsname @center\endcsname}%
+        \advance\pgf@xa by-\pgf@x%
+        \advance\pgf@ya by-\pgf@y%
+        \csname pgf@anchor@\csname pgf@sh@ns@#1\endcsname @border\endcsname{\pgfpoint{\pgf@xa}{\pgf@ya}}%
+        \pgfsettransform{\csname pgf@sh@nt@#1\endcsname}%
+        \pgf@pos@transform{\pgf@x}{\pgf@y}%
+        \global\pgf@x=\pgf@x%
+        \global\pgf@y=\pgf@y%
+      }%
+      % Undo current transformation
+      \pgftransforminvert%
+      \pgf@pos@transform{\pgf@x}{\pgf@y}%
+    }%
+  }%
+}
+
+
+
+% Declares a shape type
+%
+% #1 = shape type
+% #2 = shape specification
+%
+% Description:
+%
+% This command declares a new shape type. The shape specification
+% should contain the following commands:
+%
+% - \savedanchor
+%   This command takes two arguments: a name and some code. The point
+%   specified by the code (the \pgf@x and \pgf@y values resulting from
+%   executing the code, to be precise), will be stored under the given
+%   name. Whenever, later on, an anchor is invoked these stored points
+%   will be available. The \saveddimen works like \savedanchor, only a
+%   single dimension is stored (taken from \pgf@x).
+%   When a savedanchor is calculated, the height/width/depth of the
+%   boxes mentioned in \nodeparts can be used.
+%
+% - \anchor
+%   Specifies an anchor. This command takes two arguments: an anchor
+%   name and some code for computing the anchor. When the anchor
+%   computation starts, all shape points and shape dimension will be
+%   setup.
+%
+% - \anchorborder
+%   This command should compute a point on the border of the
+%   shape. When the code is called, \pgf@x and \pgf@y will have been
+%   preinitialised with a direction.
+%
+% - \behindbackgroundpath
+%   Some things to be draw behind everything.
+%
+% - \backgroundpath
+%   A path that is drawn behind the main box. How this path is used
+%   depends on how \pgfshape is called.
+%
+% - \beforebackgroundpath
+%   Some things to be draw before the background path, but behind the
+%   main box.
+%
+% - \behindforegroundpath
+%   Some things to be draw on top of the main box.
+%
+% - \foregroundpath
+%   A path that is drawn on top of all of the above. How this path is
+%   used depends on how \pgfshape is called.
+%
+% - \beforeforegroundpath
+%   Some things to be draw before everything.
+%
+% - \nodeparts
+%   List of node parts that make up the shape. For each entry XYZ in
+%   the list there must be a box named \pgfnodepartXYZbox (possibly
+%   ``redirected'' to some different box using \let). Each such box
+%   will be placed at the anchor XYZ.
+%   By default, \nodeparts is just {text}. Thus, there will be one
+%   node part box named \pgfnodeparttextbox and this node will be
+%   placed at the anchor text. 
+%   
+%
+% Example:
+%
+% See the definition of rectangle, below.
+
+\long\def\pgfdeclareshape#1#2{%
+  {
+    \def\shape@name{#1}
+    \let\savedanchor=\pgf@sh@savedanchor
+    \let\saveddimen=\pgf@sh@saveddimen
+    \let\anchor=\pgf@sh@anchor
+    \let\anchorborder=\pgf@sh@anchorborder
+    \let\behindbackgroundpath=\pgf@sh@behindbgpath
+    \let\backgroundpath=\pgf@sh@bgpath
+    \let\beforebackgroundpath=\pgf@sh@beforebgpath
+    \let\behindforegroundpath=\pgf@sh@behindfgpath
+    \let\foregroundpath=\pgf@sh@fgpath
+    \let\beforeforegroundpath=\pgf@sh@beforefgpath
+    \let\nodeparts=\pgf@sh@boxes
+    \let\inheritsavedanchors=\pgf@sh@inheritsavedanchors
+    \let\inheritanchor=\pgf@sh@inheritanchor
+    \let\inheritanchorborder=\pgf@sh@inheritanchorborder
+    \let\inheritbehindbackgroundpath=\pgf@sh@inheritbehindbgpath
+    \let\inheritbackgroundpath=\pgf@sh@inheritbgpath
+    \let\inheritbeforebackgroundpath=\pgf@sh@inheritbeforebgpath
+    \let\inheritbehindforegroundpath=\pgf@sh@inheritbehindfgpath
+    \let\inheritforegroundpath=\pgf@sh@inheritfgpath
+    \let\inheritbeforeforegroundpath=\pgf@sh@inheritbeforefgpath
+    \let\inheritnodeparts=\pgf@sh@inheritboxes
+    \anchorborder{\csname pgf@anchor@#1@center\endcsname}%
+    \anchor{text}{\pgfpointorigin}%
+    \nodeparts{text}%
+    \expandafter\global\expandafter\let\csname pgf@sh@s@\shape@name\endcsname=\@empty%
+    #2
+  }
+}
+
+\def\pgf@sh@savedanchor#1#2{%
+  \expandafter\g@addto@macro\csname pgf@sh@s@\shape@name\endcsname{\pgf@sh@resavedanchor{#1}{#2}}}
+\def\pgf@sh@saveddimen#1#2{%
+  \expandafter\g@addto@macro\csname pgf@sh@s@\shape@name\endcsname{\pgf@sh@resaveddimen{#1}{#2}}}
+\def\pgf@sh@anchor#1#2{\expandafter\gdef\csname pgf@anchor@\shape@name @#1\endcsname{#2}}
+\def\pgf@sh@anchorborder#1{\expandafter\gdef\csname pgf@anchor@\shape@name @border\endcsname##1{\pgf@process{##1}#1}}
+\long\def\pgf@sh@behindbgpath#1{\expandafter\gdef\csname pgf@sh@bbg@\shape@name\endcsname{#1}}
+\long\def\pgf@sh@bgpath#1{\expandafter\gdef\csname pgf@sh@bg@\shape@name\endcsname{#1}}
+\long\def\pgf@sh@beforebgpath#1{\expandafter\gdef\csname pgf@sh@fbg@\shape@name\endcsname{#1}}
+\long\def\pgf@sh@behindfgpath#1{\expandafter\gdef\csname pgf@sh@bfg@\shape@name\endcsname{#1}}
+\long\def\pgf@sh@fgpath#1{\expandafter\gdef\csname pgf@sh@fg@\shape@name\endcsname{#1}}
+\long\def\pgf@sh@beforefgpath#1{\expandafter\gdef\csname pgf@sg@ffg@\shape@name\endcsname{#1}}
+\def\pgf@sh@boxes#1{\expandafter\gdef\csname pgf@sh@boxes@\shape@name\endcsname{#1}}
+
+\def\pgf@sh@inheritsavedanchors[from=#1]{%
+  \expandafter\g@addto@macro\csname pgf@sh@s@\shape@name\endcsname{\csname pgf@sh@s@#1\endcsname}}
+\def\pgf@sh@inheritanchor[from=#1]#2{%
+  \edef\pgf@marshal{\global\let\expandafter\noexpand\csname
+    pgf@anchor@\shape@name @#2\endcsname=\expandafter\noexpand\csname
+    pgf@anchor@#1@#2\endcsname}%
+  \pgf@marshal%
+}
+\def\pgf@sh@inheritanchorborder[from=#1]{%
+  \edef\pgf@marshal{\global\let\expandafter\noexpand\csname
+    pgf@anchor@\shape@name @border\endcsname=\expandafter\noexpand\csname
+    pgf@anchor@#1@border\endcsname}%
+  \pgf@marshal%
+}
+\def\pgf@sh@inheritor#1#2{%
+  \edef\pgf@marshal{\global\let\expandafter\noexpand\csname
+    pgf@sh@#1@\shape@name\endcsname=\expandafter\noexpand\csname
+    pgf@sh@#1@#2\endcsname}%
+  \pgf@marshal%
+}
+\def\pgf@sh@inheritbehindbgpath[from=#1]{\pgf@sh@inheritor{bbg}{#1}}
+\def\pgf@sh@inheritbgpath[from=#1]{\pgf@sh@inheritor{bg}{#1}}
+\def\pgf@sh@inheritbeforebgpath[from=#1]{\pgf@sh@inheritor{fbg}{#1}}
+\def\pgf@sh@inheritbehindfgpath[from=#1]{\pgf@sh@inheritor{bfg}{#1}}
+\def\pgf@sh@inheritfgpath[from=#1]{\pgf@sh@inheritor{fg}{#1}}
+\def\pgf@sh@inheritbeforefgpath[from=#1]{\pgf@sh@inheritor{ffg}{#1}}
+\def\pgf@sh@inheritboxes[from=#1]{\pgf@sh@inheritor{boxes}{#1}}
+
+
+
+% 
+% Coordinate. This shape is special: It is only used to reference a
+% point for later usage. Nothing is drawn, all anchors are identical
+% to the center. 
+%
+
+\pgfdeclareshape{coordinate}
+{
+  \savedanchor\centerpoint{%
+    % x
+    \pgf@x=.5\wd\pgfnodeparttextbox%
+    % y
+    \pgf@y=.5\ht\pgfnodeparttextbox%
+    \advance\pgf@y by -.5\dp\pgfnodeparttextbox%
+  }
+  
+  \anchor{center}{\centerpoint}
+  \anchor{north}{\centerpoint}
+  \anchor{north west}{\centerpoint}
+  \anchor{north east}{\centerpoint}
+  \anchor{center}{\centerpoint}
+  \anchor{west}{\centerpoint}
+  \anchor{east}{\centerpoint}
+  \anchor{mid}{\centerpoint}
+  \anchor{mid west}{\centerpoint}
+  \anchor{mid east}{\centerpoint}
+  \anchor{base}{\centerpoint}
+  \anchor{base west}{\centerpoint}
+  \anchor{base east}{\centerpoint}
+  \anchor{south}{\centerpoint}
+  \anchor{south west}{\centerpoint}
+  \anchor{south east}{\centerpoint}
+  \anchorborder{\centerpoint}
+
+  \nodeparts{}% no text
+}
+
+
+% Set the recommended inner x separation
+%
+% #1 = size
+%
+% Example:
+%
+% \pgfsetshapeinnerxsep{2pt}
+
+\def\pgfsetshapeinnerxsep#1{\def\pgfshapeinnerxsep{#1}}
+\pgfsetshapeinnerxsep{.3333em}
+
+
+% Set the recommended inner y separation
+%
+% #1 = size
+%
+% Example:
+%
+% \pgfsetshapeinnerxsep{2pt}
+
+\def\pgfsetshapeinnerysep#1{\def\pgfshapeinnerysep{#1}}
+\pgfsetshapeinnerysep{.3333em}
+
+
+% Set the recommended outer x separation
+%
+% #1 = size
+%
+% Example:
+%
+% \pgfsetshapeouterxsep{2pt}
+
+\def\pgfsetshapeouterxsep#1{\def\pgfshapeouterxsep{#1}}
+\pgfsetshapeouterxsep{.5\pgflinewidth}
+
+
+% Set the recommended outer y separation
+%
+% #1 = size
+%
+% Example:
+%
+% \pgfsetshapeouterxsep{2pt}
+
+\def\pgfsetshapeouterysep#1{\def\pgfshapeouterysep{#1}}
+\pgfsetshapeouterysep{.5\pgflinewidth}
+
+
+% Set the recommended minimum width
+%
+% #1 = size
+%
+% Example:
+%
+% \pgfsetshapeminwidth{1cm}
+
+\def\pgfsetshapeminwidth#1{\def\pgfshapeminwidth{#1}}
+\pgfsetshapeminwidth{1pt}
+
+
+% Set the recommended minimum height
+%
+% #1 = size
+%
+% Example:
+%
+% \pgfsetshapeminheight{1cm}
+
+\def\pgfsetshapeminheight#1{\def\pgfshapeminheight{#1}}
+\pgfsetshapeminheight{1pt}
+
+
+% 
+% Rectangle
+%
+
+\pgfdeclareshape{rectangle}
+{
+  \savedanchor\northeast{%
+    % Calculate x
+    %
+    % First, is width < minimum width?
+    \pgf@x=\the\wd\pgfnodeparttextbox%
+    \setlength\pgf@xc{\pgfshapeinnerxsep}%
+    \advance\pgf@x by 2\pgf@xc%
+    \setlength\pgf@xb{\pgfshapeminwidth}%
+    \ifdim\pgf@x<\pgf@xb%
+      % yes, too small. Enlarge...
+      \pgf@x=\pgf@xb%
+    \fi%
+    % Now, calculate right border: .5\wd\pgfnodeparttextbox + .5 \pgf@x + outer sep
+    \pgf@x=.5\pgf@x%
+    \advance\pgf@x by.5\wd\pgfnodeparttextbox%
+    \setlength\pgf@xa{\pgfshapeouterxsep}%
+    \advance\pgf@x by\pgf@xa%
+    % Calculate y
+    %
+    % First, is height+depth < minimum height?
+    \pgf@y=\ht\pgfnodeparttextbox%
+    \advance\pgf@y by\dp\pgfnodeparttextbox%
+    \setlength\pgf@yc{\pgfshapeinnerysep}%
+    \advance\pgf@y by 2\pgf@yc%
+    \setlength\pgf@yb{\pgfshapeminheight}%
+    \ifdim\pgf@y<\pgf@yb%
+      % yes, too small. Enlarge...
+      \pgf@y=\pgf@yb%
+    \fi%
+    % Now, calculate upper border: .5\ht-.5\dp + .5 \pgf@y + outer sep
+    \pgf@y=.5\pgf@y%
+    \advance\pgf@y by-.5\dp\pgfnodeparttextbox%
+    \advance\pgf@y by.5\ht\pgfnodeparttextbox%
+    \setlength\pgf@ya{\pgfshapeouterysep}%
+    \advance\pgf@y by\pgf@ya%
+  }
+    
+  \savedanchor\southwest{%
+      % Calculate x
+      %
+      % First, is width < minimum width?
+      \pgf@x=\wd\pgfnodeparttextbox%
+      \setlength\pgf@xc{\pgfshapeinnerxsep}%
+      \advance\pgf@x by 2\pgf@xc%
+      \setlength\pgf@xb{\pgfshapeminwidth}%
+      \ifdim\pgf@x<\pgf@xb%
+        % yes, too small. Enlarge...
+        \pgf@x=\pgf@xb%
+      \fi%
+      % Now, calculate left border: .5\wd\pgfnodeparttextbox - .5 \pgf@x - outer sep
+      \pgf@x=-.5\pgf@x%
+      \advance\pgf@x by.5\wd\pgfnodeparttextbox%
+      \setlength\pgf@xa{\pgfshapeouterxsep}%
+      \advance\pgf@x by-\pgf@xa%
+      % Calculate y
+      %
+      % First, is height+depth < minimum height?
+      \pgf@y=\ht\pgfnodeparttextbox%
+      \advance\pgf@y by\dp\pgfnodeparttextbox%
+      \setlength\pgf@yc{\pgfshapeinnerysep}%
+      \advance\pgf@y by 2\pgf@yc%
+      \setlength\pgf@yb{\pgfshapeminheight}%
+      \ifdim\pgf@y<\pgf@yb%
+        % yes, too small. Enlarge...
+        \pgf@y=\pgf@yb%
+      \fi%
+       % Now, calculate upper border: .5\ht-.5\dp - .5 \pgf@y - outer sep
+      \pgf@y=-.5\pgf@y%
+      \advance\pgf@y by-.5\dp\pgfnodeparttextbox%
+      \advance\pgf@y by.5\ht\pgfnodeparttextbox%
+      \setlength\pgf@ya{\pgfshapeouterysep}%
+      \advance\pgf@y by-\pgf@ya%
+  }
+
+  %
+  % Anchors
+  % 
+  \anchor{center}{
+    \pgf@process{\northeast}%
+    \pgf@xa=.5\pgf@x%
+    \pgf@ya=.5\pgf@y%
+    \pgf@process{\southwest}%
+    \pgf@x=.5\pgf@x%
+    \pgf@y=.5\pgf@y%
+    \advance\pgf@x by \pgf@xa%
+    \advance\pgf@y by \pgf@ya%
+  }
+  \anchor{mid}{\pgf@anchor@rectangle@center\setlength\pgf@y{.5ex}}
+  \anchor{base}{\pgf@anchor@rectangle@center\pgf@y=0pt}
+  \anchor{north}{
+    \pgf@process{\southwest}%
+    \pgf@xa=.5\pgf@x%
+    \pgf@process{\northeast}%
+    \pgf@x=.5\pgf@x%
+    \advance\pgf@x by \pgf@xa%
+  }
+  \anchor{south}{
+    \pgf@process{\northeast}%
+    \pgf@xa=.5\pgf@x%
+    \pgf@process{\southwest}%
+    \pgf@x=.5\pgf@x%
+    \advance\pgf@x by \pgf@xa%
+  }
+  \anchor{west}{
+    \pgf@process{\northeast}%
+    \pgf@ya=.5\pgf@y%
+    \pgf@process{\southwest}%
+    \pgf@y=.5\pgf@y%
+    \advance\pgf@y by \pgf@ya%
+  }
+  \anchor{mid west}{\southwest\setlength\pgf@y{.5ex}}
+  \anchor{base west}{\southwest\pgf@y=0pt}
+  \anchor{north west}{
+    \southwest
+    \pgf@xa=\pgf@x
+    \northeast
+    \pgf@x=\pgf@xa}
+  \anchor{south west}{\southwest}
+  \anchor{east}{%
+    \pgf@process{\southwest}%
+    \pgf@ya=.5\pgf@y%
+    \pgf@process{\northeast}%
+    \pgf@y=.5\pgf@y%
+    \advance\pgf@y by \pgf@ya%
+  }
+  \anchor{mid east}{\northeast\setlength\pgf@y{.5ex}}
+  \anchor{base east}{\northeast\pgf@y=0pt}
+  \anchor{north east}{\northeast}
+  \anchor{south east}{
+    \northeast
+    \pgf@xa=\pgf@x
+    \southwest
+    \pgf@x=\pgf@xa
+  }
+  \anchorborder{%
+    \pgf@xb=\pgf@x% xb/yb is target
+    \pgf@yb=\pgf@y%
+    \southwest%
+    \pgf@xa=\pgf@x% xa/ya is se
+    \pgf@ya=\pgf@y%
+    \northeast%
+    \advance\pgf@x by-\pgf@xa%
+    \advance\pgf@y by-\pgf@ya%
+    \pgf@xc=.5\pgf@x% x/y is half width/height
+    \pgf@yc=.5\pgf@y%
+    \advance\pgf@xa by\pgf@xc% xa/ya becomes center
+    \advance\pgf@ya by\pgf@yc%
+    \edef\pgf@marshal{%
+      \noexpand\pgfpointborderrectangle
+      {\noexpand\pgfpoint{\the\pgf@xb}{\the\pgf@yb}}
+      {\noexpand\pgfpoint{\the\pgf@xc}{\the\pgf@yc}}%
+    }%
+    \pgf@process{\pgf@marshal}%
+    \advance\pgf@x by\pgf@xa%
+    \advance\pgf@y by\pgf@ya%
+  }
+
+  %
+  % Background path
+  %
+  \backgroundpath{
+    \pgfpathrectanglecorners
+    {\pgfpointadd{\southwest}{\pgfpoint{\pgfshapeouterxsep}{\pgfshapeouterysep}}}
+    {\pgfpointadd{\northeast}{\pgfpointscale{-1}{\pgfpoint{\pgfshapeouterxsep}{\pgfshapeouterysep}}}}
+  }
+}
+
+
+
+% Special  current bounding box  rectangle:
+\expandafter\def\csname pgf@sh@ns@current bounding box\endcsname{rectangle}
+\expandafter\def\csname pgf@sh@np@current bounding box\endcsname{%
+  \def\southwest{\pgfpoint{\pgf@picminx}{\pgf@picminy}}%
+  \def\northeast{\pgfpoint{\pgf@picmaxx}{\pgf@picmaxy}}%
+}
+\expandafter\def\csname pgf@sh@nt@current bounding box\endcsname{{1}{0}{0}{1}{0pt}{0pt}}
+
+
+
+%
+% Circle
+%
+
+\pgfdeclareshape{circle}
+%
+% Draws a circle around the text
+%
+{
+  \savedanchor\centerpoint{%
+    \pgf@x=.5\wd\pgfnodeparttextbox%
+    \pgf@y=.5\ht\pgfnodeparttextbox%
+    \advance\pgf@y by-.5\dp\pgfnodeparttextbox%
+  }
+    
+  \saveddimen\radius{%
+    % 
+    % Caculate ``height radius''
+    % 
+    \pgf@ya=.5\ht\pgfnodeparttextbox%
+    \advance\pgf@ya by.5\dp\pgfnodeparttextbox%
+    \setlength\pgf@yb{\pgfshapeinnerysep}%
+    \advance\pgf@ya by\pgf@yb%
+    % 
+    % Caculate ``width radius''
+    % 
+    \pgf@xa=.5\wd\pgfnodeparttextbox%
+    \setlength\pgf@xb{\pgfshapeinnerxsep}%
+    \advance\pgf@xa by\pgf@xb%
+    % 
+    % Calculate length of radius vector:
+    % 
+    \pgf@process{\pgfpointnormalised{\pgfpoint{\pgf@xa}{\pgf@ya}}}%
+    \ifdim\pgf@x>\pgf@y%
+        \c@pgf@counta=\pgf@x%
+        \ifnum\c@pgf@counta=0\relax%
+        \else%
+          \divide\c@pgf@counta by 255\relax%
+          \pgf@xa=16\pgf@xa\relax%
+          \divide\pgf@xa by\c@pgf@counta%
+          \pgf@xa=16\pgf@xa\relax%
+        \fi%
+      \else%
+        \c@pgf@counta=\pgf@y%
+        \ifnum\c@pgf@counta=0\relax%
+        \else%
+          \divide\c@pgf@counta by 255\relax%
+          \pgf@ya=16\pgf@ya\relax%
+          \divide\pgf@ya by\c@pgf@counta%
+          \pgf@xa=16\pgf@ya\relax%
+        \fi%
+    \fi%
+    \pgf@x=\pgf@xa%
+    % 
+    % If necessary, adjust radius so that the size requirements are
+    % met: 
+    % 
+    \setlength{\pgf@xb}{\pgfshapeminwidth}%  
+    \setlength{\pgf@yb}{\pgfshapeminheight}%  
+    \ifdim\pgf@x<.5\pgf@xb%
+        \pgf@x=.5\pgf@xb%
+    \fi%
+    \ifdim\pgf@x<.5\pgf@yb%
+        \pgf@x=.5\pgf@yb%
+    \fi%
+    % 
+    % Now, add larger of outer sepearations.
+    % 
+    \setlength{\pgf@xb}{\pgfshapeouterxsep}%  
+    \setlength{\pgf@yb}{\pgfshapeouterysep}%  
+    \ifdim\pgf@xb<\pgf@yb%
+      \advance\pgf@x by\pgf@yb%
+    \else%
+      \advance\pgf@x by\pgf@xb%
+    \fi%
+  }
+
+  %
+  % Anchors
+  % 
+  \anchor{center}{\centerpoint}
+  \anchor{mid}{\centerpoint\setlength\pgf@y{.5ex}}
+  \anchor{base}{\centerpoint\pgf@y=0pt}
+  \anchor{north}{\centerpoint\advance\pgf@y by\radius}
+  \anchor{south}{\centerpoint\advance\pgf@y by-\radius}
+  \anchor{west}{\centerpoint\advance\pgf@x by-\radius}
+  \anchor{east}{\centerpoint\advance\pgf@x by\radius}
+  \anchor{mid west}{\centerpoint\advance\pgf@x by-\radius\setlength\pgf@y{.5ex}}
+  \anchor{mid east}{\centerpoint\advance\pgf@x by\radius\setlength\pgf@y{.5ex}}
+  \anchor{base west}{\centerpoint\advance\pgf@x by-\radius\pgf@y=0pt}
+  \anchor{base east}{\centerpoint\advance\pgf@x by\radius\pgf@y=0pt}
+  \anchor{north west}{
+    \centerpoint
+    \pgf@xa=\radius
+    \advance\pgf@x by-0.707107\pgf@xa
+    \advance\pgf@y by0.707107\pgf@xa
+  }
+  \anchor{south west}{
+    \centerpoint
+    \pgf@xa=\radius
+    \advance\pgf@x by-0.707107\pgf@xa
+    \advance\pgf@y by-0.707107\pgf@xa
+  }
+  \anchor{north east}{
+    \centerpoint
+    \pgf@xa=\radius
+    \advance\pgf@x by0.707107\pgf@xa
+    \advance\pgf@y by0.707107\pgf@xa
+  }
+  \anchor{south east}{
+    \centerpoint
+    \pgf@xa=\radius
+    \advance\pgf@x by0.707107\pgf@xa
+    \advance\pgf@y by-0.707107\pgf@xa
+  }
+  \anchorborder{
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \edef\pgf@marshal{%
+      \noexpand\pgfpointborderellipse
+      {\noexpand\pgfpoint{\the\pgf@xa}{\the\pgf@ya}}
+      {\noexpand\pgfpoint{\radius}{\radius}}%
+    }%
+    \pgf@marshal%
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \centerpoint%
+    \advance\pgf@x by\pgf@xa%
+    \advance\pgf@y by\pgf@ya%
+  }
+
+  %
+  % Background path
+  %
+  \backgroundpath{
+    \@tempdima=\radius%
+    \setlength{\pgf@xb}{\pgfshapeouterxsep}%  
+    \setlength{\pgf@yb}{\pgfshapeouterysep}%  
+    \ifdim\pgf@xb<\pgf@yb%
+      \advance\@tempdima by-\pgf@yb%
+    \else%
+      \advance\@tempdima by-\pgf@xb%
+    \fi%
+    \pgfpathcircle{\centerpoint}{\@tempdima}%
+  }
+}
+
+
+
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfbasesnakes.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfbasesnakes.code.tex
new file mode 100644
index 00000000000..7403f2a7b8e
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfbasesnakes.code.tex
@@ -0,0 +1,346 @@
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfbasesnakes.code.tex,v 1.5 2005/10/10 08:38:29 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+\newdimen\pgfsnakeremainingdistance
+\newdimen\pgfsnakecompleteddistance
+
+
+% Creates a new pgf snake
+%
+% #1 = snake name
+% #1 = initial state
+% #3= states of the snake
+%
+%
+% This command declares a new snake for later use. The second
+% parameter specifies the states of the snake, see also the
+% description of pgfpathsnake.
+%
+% Inside the code of #3 the command \state may be used. This command
+% will only be defined while #3 is executed.
+%
+% Example:
+%
+% \pgfdeclaresnake{zig zag}{one zig zag}
+% {
+%   \state{one zig zag}[width=10pt]
+%   {
+%     \pgfpathlineto{\pgfpoint{2.5pt}{2.5pt}}
+%     \pgfpathlineto{\pgfpoint{7.5pt}{-2.5pt}}
+%     \pgfpathlineto{\pgfpoint{10pt}{0pt}}
+%   }
+%   \state{final}
+%   {
+%     \pgfpathlineto{\pgfpoint{\pgfsnakeremainingdistance}{0pt}}
+%   }
+% }
+
+\long\def\pgfdeclaresnake#1#2#3{%
+  \def\pgf@snake@name{#1}%
+  \@namedef{pgf@snake@@#1@initial}{#2}%
+  \let\pgf@orig@state=\state%
+  \let\state=\pgf@snake@state
+  #3
+  \let\state=\pgf@orig@state%
+}
+
+
+% Sets the additional transformation applied to every segment of a snake
+%
+% #1 = transformation
+%
+% Example:
+%
+% \pgfsetsnakesegmenttransformation{\pgftransformyshift{5pt}}
+
+\def\pgfsetsnakesegmenttransformation#1{\def\pgf@snakeadditionaltransform{#1}}
+\pgfsetsnakesegmenttransformation{}
+
+
+% Declares a new state
+%
+% #1 = state name
+% #2 = options
+% #3 = path element
+%
+% Description:
+%
+% When a snake is drawn and the current state is #1, the following
+% happens. First, the options are executed, which will possible change
+% the state. If that does not happen, the path element is added to the
+% path and the coordinate system is translated by the path element's
+% width (which is specified using the width option).
+%
+% Example:
+%
+% \state{initial}[width=10pt]
+% {
+%   \pgfpathlineto{\pgfpoint{2.5pt}{2.5pt}}
+%   \pgfpathlineto{\pgfpoint{7.5pt}{-2.5pt}}
+%   \pgfpathlineto{\pgfpoint{10pt}{0pt}}
+% }
+
+\def\pgf@snake@state#1{\@ifnextchar[{\pgf@@snake@start#1}{\pgf@@snake@start#1[]}}%}
+\def\pgf@@snake@start#1[#2]#3{%
+  \@namedef{pgf@snake@@\pgf@snake@name @#1@options}{#2}%
+  \@namedef{pgf@snake@@\pgf@snake@name @#1@code}{#3}%
+}
+
+
+
+% Use multiple snakes
+%
+% #1 = list of snake names/length pairs
+% #2 = point to which the snake leads
+%
+% This operation uses the snakes in parameter #1 to get to the point
+% #4. The parameter #1 should contain pairs consisting of a snake name
+% and a length for which this snake should be used. When the length is
+% computed, the dimensions \pgfsnakeremainingdistance and
+% \pgfsnakecompleteddistance will have been set to the length of the
+% total distance to #2 that has already been covered/that still needs
+% to be covered.
+%
+% Example:
+%
+% \pgfpathsnakesto{{lineto}{1cm},{zig zag}{\pgfsnakeremainingdistance}}{\pgfpoint{2cm}{3cm}}
+
+\def\pgfpathsnakesto#1#2{%
+  \begingroup%
+    % compute target vector
+    \pgfpointtransformed{#2}%
+    \advance\pgf@x by-\pgf@path@lastx%
+    \advance\pgf@y by-\pgf@path@lasty%
+    % Ok, now normalize the vector...
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \pgf@process{\pgfpointnormalised{}}%
+    % ok, now computer length (arghh...)
+    % In theory that's easy: divide the larger of the values x or y by
+    % the normalizes x or y. Well...
+    %
+    % First, make xa and ya positive:
+    \ifdim\pgf@xa<0pt%
+      \pgf@xa=-\pgf@xa%
+    \fi%
+    \ifdim\pgf@ya<0pt%
+      \pgf@ya=-\pgf@ya%
+    \fi%
+    % Now do division:
+    \ifdim\pgf@xa>\pgf@ya%
+      \c@pgf@counta=\pgf@x%
+      \ifnum\c@pgf@counta=0\relax%
+      \else%
+        \divide\c@pgf@counta by 255\relax%
+        \pgf@xa=16\pgf@xa\relax%
+        \divide\pgf@xa by\c@pgf@counta%
+        \pgf@xa=16\pgf@xa\relax%
+      \fi%
+    \else%
+      \c@pgf@counta=\pgf@y%
+      \ifnum\c@pgf@counta=0\relax%
+      \else%
+        \divide\c@pgf@counta by 255\relax%
+        \pgf@ya=16\pgf@ya\relax%
+        \divide\pgf@ya by\c@pgf@counta%
+        \pgf@xa=16\pgf@ya\relax%
+      \fi%
+    \fi%
+    % Make positive:
+    \ifdim\pgf@xa<0pt%
+      \pgf@xa=-\pgf@xa%
+    \fi%
+    % Ok, now we draw things...
+    \edef\pgf@list{#1}%
+    \pgfsnakeremainingdistance=\pgf@xa%
+    \pgfsnakecompleteddistance=0pt%
+    \pgf@xb=\pgf@x%
+    \pgf@yb=\pgf@y%
+    \@for\pgf@temp:=\pgf@list\do{%
+      \ifx\pgf@temp\@empty%
+      \else%
+        \expandafter\pgf@snake@invoke\pgf@temp%
+      \fi%
+    }%
+  \endgroup%
+}
+
+\def\pgf@snake@invoke#1#2{%
+  \setlength\pgf@xa{#2}%
+  {%
+    \edef\pgf@marshal{\noexpand\pgfpathsnakealongvector{#1}{\the\pgf@xa}{\noexpand\pgfpoint{\the\pgf@xb}{\the\pgf@yb}}}%
+    \pgf@marshal%
+  }%
+  \advance\pgfsnakecompleteddistance by\pgf@xa%
+  \advance\pgfsnakeremainingdistance by-\pgf@xa%
+}
+
+% Use a snake
+%
+% #1 = snake name
+% #2 = point to which the snake leads
+%
+% This operation mainly computes \pgfpathsnakealongvector for a vector
+% appropriately choosen. See \pgfpathsnakealongvector for details.
+%
+% Example:
+%
+% \pgfpathsnaketo{zig zag}{\pgfpoint{2cm}{3cm}}
+
+\def\pgfpathsnaketo#1#2{\pgfpathsnakesto{{#1}{\pgfsnakeremainingdistance}}{#2}}
+
+
+
+% Use a snake
+%
+% #1 = snake name
+% #2 = length of the snake
+% #3 = vector along which the snake grows, should have unit length.
+%
+% This command draws a snake (more precisely, it adds a snake to the
+% path). This works as follows:
+%
+% First, the coordinate system is transformed such that the vector #3
+% points to the right.
+%
+% Next, the state `initial' of the snake is entered. Unless the
+% options of this state cause it to switch to another state, the path
+% element is added to the path. Then, the coordinate system is
+% translated by the width of the path element as specified in the
+% width option of the path element. The dimensions
+% \pgfsnakeremainingdistance and \pgfsnakecompleteddistance are
+% updated. 
+%
+% The process ends when the state `final' is entered. The code of the
+% final state is executed and the process stops.
+%
+% Example:
+%
+% \pgfpathsnakealongvector{zig zag}{100pt}{\pgfpolar{30}{1pt}}
+
+\def\pgfpathsnakealongvector#1#2#3{%
+  \@ifundefined{pgf@snake@@#1@initial}{\PackageError{pgf}{Undefined snake ``#1''}{}}
+  { 
+  \begingroup% keep things local
+    \pgftransformreset%
+    \pgf@pt@x=\pgf@path@lastx% evil trickery to transform to the last point
+    \pgf@pt@y=\pgf@path@lasty%
+    \pgf@process{#3}%
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \pgf@xb=-\pgf@y%
+    \pgf@yb=\pgf@x%
+    \pgftransformcm
+      {\pgf@sys@tonumber{\pgf@xa}}{\pgf@sys@tonumber{\pgf@ya}}
+      {\pgf@sys@tonumber{\pgf@xb}}{\pgf@sys@tonumber{\pgf@yb}}
+      {\pgfpointorigin}%
+    % Now, setup the automaton
+    \expandafter\let\expandafter\pgf@snake@current@state\expandafter=\csname pgf@snake@@#1@initial\endcsname%
+    \def\pgf@snake@name{#1}%  
+    \pgfsnakecompleteddistance=0pt%  
+    \setlength\pgfsnakeremainingdistance{#2}%
+    \pgf@snake@run%
+    % Last step:
+    {%
+      \pgftransformxshift{\pgfsnakecompleteddistance}%
+      \pgf@snakeadditionaltransform%
+      \csname pgf@snake@@#1@final@code\endcsname%
+    }%
+  \endgroup%
+  }%
+}
+
+\def\pgf@final@text{final}
+
+\def\pgf@snake@run{%
+  \let\pgf@snake@next=\pgf@snake@do@state%
+  \ifx\pgf@snake@current@state\pgf@final@text%
+    \let\pgf@snake@next=\relax%
+  \fi%
+  \pgf@snake@next%  
+}
+
+\def\pgf@snake@do@state{%
+  \let\pgf@snake@next=\relax%
+  \let\pgf@snake@next@state=\pgf@snake@current@state%
+  % execute options
+  \def\pgf@marshal{\setkeys{pgfsnake}}%
+  \expandafter\expandafter\expandafter\pgf@marshal
+  \expandafter\expandafter\expandafter{\csname pgf@snake@@\pgf@snake@name @\pgf@snake@current@state @options\endcsname}%
+  \ifx\pgf@snake@next\relax%
+    \pgf@snake@next=\pgf@snake@do@code%
+  \fi%
+  \pgf@snake@next%
+}
+
+\def\pgf@snake@do@code{%
+  % Ok, execute code:
+  {%
+    \pgftransformxshift{\pgfsnakecompleteddistance}%
+    \pgf@snakeadditionaltransform%
+    \csname pgf@snake@@\pgf@snake@name @\pgf@snake@current@state @code\endcsname%
+  }%
+  % next, do transformation and update
+  \setlength{\pgf@xa}{\pgf@snake@width}%
+  \advance\pgfsnakeremainingdistance by-\pgf@xa%
+  \advance\pgfsnakecompleteddistance by\pgf@xa%
+  % Next iteration:
+  \let\pgf@snake@current@state=\pgf@snake@next@state%
+  \pgf@snake@run 
+}
+
+\define@key{pgfsnake}{width}{%
+  \def\pgf@snake@width{#1}%
+  \pgf@snake@switch@if#1 to final\pgf@stop%
+}
+\define@key{pgfsnake}{switch if less than}{%
+  \pgf@snake@switch@if#1\pgf@stop%
+}
+\define@key{pgfsnake}{next state}{%
+  \def\pgf@snake@next@state{#1}%
+}
+
+\def\pgf@snake@switch@if#1to #2\pgf@stop{%
+  \ifx\pgf@snake@next\relax%
+    \setlength\pgf@x{#1}%
+    \ifdim\pgfsnakeremainingdistance<\pgf@x%
+      \def\pgf@snake@current@state{#2}%
+      \let\pgf@snake@next=\pgf@snake@run%
+    \fi%
+  \fi%
+}
+
+
+
+% lineto snake
+%
+% This snake simply adds a straight line. This snake is mainly useful
+% in conjunction with other snakes.
+
+\pgfdeclaresnake{lineto}{final}
+{
+  \state{final}
+  { \pgfpathlineto{\pgfpoint{\pgfsnakeremainingdistance}{0pt}} }
+}
+
+
+
+% moveto snake
+%
+% This snake simply jumps to the end. This snake, too, is mainly
+% useful in conjunction with other snakes.
+
+\pgfdeclaresnake{moveto}{final}
+{
+  \state{final}
+  { \pgfpathmoveto{\pgfpoint{\pgfsnakeremainingdistance}{0pt}} }
+}
+
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcore.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcore.code.tex
new file mode 100644
index 00000000000..3496b92cf6d
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcore.code.tex
@@ -0,0 +1,23 @@
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfcore.code.tex,v 1.2 2005/07/06 15:58:57 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+\newif\ifpgf@draftmode
+
+\input pgfcoremath.code.tex
+\input pgfcorepoints.code.tex
+\input pgfcorepathconstruction.code.tex
+\input pgfcorepathusage.code.tex
+\input pgfcorescopes.code.tex
+\input pgfcoregraphicstate.code.tex
+\input pgfcoretransformations.code.tex
+\input pgfcorequick.code.tex
+\input pgfcoreobjects.code.tex
+\input pgfcorepathprocessing.code.tex
+\input pgfcorearrows.code.tex
+\input pgfcoreshade.code.tex
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorearrows.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorearrows.code.tex
new file mode 100644
index 00000000000..0283f40c4d2
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorearrows.code.tex
@@ -0,0 +1,510 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfcorearrows.code.tex,v 1.2 2005/07/10 20:11:23 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+% Sets the end arrow
+%
+% #1 = An arrow name
+%
+% Example:
+%
+% \pgfsetarrowsend{stealth}
+
+\def\pgfsetarrowsend#1{\pgf@arrowset{end}{#1}}
+\def\pgf@arrowset#1#2{%
+  \@ifundefined{pgf@arrow@code@#2}
+  {\PackageError{pgf}{Arrow #1 type ``#2'' unknown}{}}
+  {%
+    \edef\pgf@arrow@temp{#2}%
+    \ifx\pgf@arrow@temp\@empty% ah. clear!
+      \expandafter\let\csname pgf@#1arrow\endcsname=\@empty%
+      \expandafter\let\csname pgf@shorten@#1\endcsname=\@empty%
+    \else%
+      %\pgf@arrow@prepare{#2}%
+      \expandafter\def\csname pgf@#1arrow\endcsname{\pgf@arrow@call{#2}}%
+      \expandafter\edef\csname pgf@shorten@#1\endcsname{\expandafter\noexpand\csname pgf@arrow@right@#2\endcsname}%
+    \fi%
+  }%
+}
+
+
+% Sets the start arrow
+%
+% #1 = An arrow name
+%
+% Example:
+%
+% \pgfsetarrowsstart{stealth}
+
+\def\pgfsetarrowsstart#1{\pgf@arrowset{start}{\csname pgf@arrows@invert#1\endcsname}}
+
+\def\pgf@arrows@invname#1#2{\expandafter\def\csname pgf@arrows@invert#1\endcsname{#2}}
+\pgf@arrows@invname{}{}
+
+
+
+
+% Sets arrows
+%
+% #1 = An arrow specification of the form ``left''-``right''. The last
+%      and right should be arrow types that have been defined using
+%      the \pgfarrowsdef command
+%
+% Example:
+%
+% \pgfsetarrows{-to}
+
+\def\pgfsetarrows#1{\pgf@arrows#1\pgf@stop}
+\def\pgf@arrows#1-#2\pgf@stop{%
+  \pgfsetarrowsstart{#1}
+  \pgfsetarrowsend{#2}
+}
+
+\def\pgf@arrows@checked#1#2#3{%
+  \@ifundefined{pgf@arrow@code@#2}%
+  {%
+    \PackageError{pgf}{Arrow end type ``#2'' unknown}{}}%
+  {%
+    \@ifundefined{pgf@arrow@code@\csname pgf@arrows@invert#1\endcsname}
+    {\PackageError{pgf}{Arrow start type ``#1'' unknown}{}}%
+    {#3}%
+  }%
+}
+
+\def\pgf@arrows@check@already#1#2#3{%
+  \@ifundefined{pgf@arrow@code@#2}
+  {#3}%
+  {\PackageError{pgf}{Arrow end type ``#2'' already defined}{}}%
+}
+
+
+% Called when an arrow needs to be rendered
+
+\def\pgf@arrow@call#1{%
+  \expandafter\ifx\csname pgf@arrow@prot@#1@\the\pgflinewidth\endcsname\relax%
+    \pgfsysprotocol@getcurrentprotocol\pgf@arrow@temp%
+    {%
+      \pgfinterruptpath%
+        \let\pgfusepath=\pgf@nousepath@here%
+        \pgf@relevantforpicturesizefalse%
+        \pgftransformreset%
+        \pgfsysprotocol@setcurrentprotocol\@empty%
+        \pgfsysprotocol@bufferedtrue%
+        \pgfsys@beginscope%
+        \csname pgf@arrow@code@#1\endcsname%
+        \pgfsys@endscope%
+        \pgfsysprotocol@getcurrentprotocol\pgf@@arrow@temp%
+        \global\let\pgf@@arrow@temp=\pgf@@arrow@temp%
+      \endpgfinterruptpath%
+      \expandafter\xdef\csname pgf@arrow@prot@#1@\the\pgflinewidth\endcsname{%
+        \noexpand\pgfsys@invoke{\pgf@@arrow@temp}}%
+    }%
+    \pgfsysprotocol@setcurrentprotocol\pgf@arrow@temp%
+  \fi%
+  \csname pgf@arrow@prot@#1@\the\pgflinewidth\endcsname%
+} 
+
+\def\pgf@arrow@code@{} % dummy
+
+\def\pgf@nousepath@here#1{%
+  \PackageError{pgf}{The definition of an arrow may not use \string\pgfusepath}{}
+}
+
+
+
+% Define an arrow type.
+%
+% #1 = name or mnemonic for arrow when used at the start (examples: ``to'' or ``<'')
+% #2 = name or mnemonic for arrow when used at the end (examples: ``to'' or ``>'')
+% #3 = code to setup the left and right extend of the arrow. To set
+%      the left extend, call \pgfarrowsleftextend, for the right \pgfarrowsrightextend.
+% #4 = protocolable code
+%
+% Description:
+%
+% When you define an arrow using this command, you must give two
+% names. The first is used for the arrow when it is ``at the start'',
+% the other when it is at the end. For example, a simple arrow might
+% have the names ``<'' and ``>'', though these particular names are
+% not used by pgf and left for the user.
+%
+% The code should be ``protocolable'' code. This means that it uses
+% only pretty simple commands. 
+%
+% The arrow code will be protocolled once for each line width at which
+% the arrow is used. Thus, the code can (and often should) depend on
+% the line width.
+%
+% The arrow should ``point right'' in the coordinate system. The end
+% of the line at which the arrow should be drawn will be at the origin
+% of the coordinate system. The coordinate system will be scaled and
+% rotated appropriately before the arrow is drawn.
+%
+% The right extend of the arrow should be set to how much the arrow
+% ``protrudes over the right''. Prior to drawing the arrow, the line
+% will be shortened by this amount so that the arrow tip will exactly
+% touch the original right end of the unshortened line.
+%
+% The left extend specifies the leftmost point of the arrow. This is
+% important only if you use the swapping command, when this end is
+% used to compute the shortening. 
+%
+% The definition of an arrow should normally take care of the fact
+% that the line cap of the main line may be a butt cap, a round cap or
+% a rect cap. In all cases, the arrow should ``cover'' the cap
+% completely or not at all.
+%
+% Example:
+%
+% \pgfarrowsdeclare{stealth}{stealth}
+% {
+%   \pgfarrowsleftextend{-6\pgflinewidth}
+%   \pgfarrowsrightextend{2\pgflinewidth}
+% {
+%   \pgfpathmoveto{\pgfpoint{2\pgflinewidth}{0pt}}
+%   \pgfpathlineto{\pgfpoint{-6\pgflinewidth}{4\pgflinewidth}}
+%   \pgfpathlineto{\pgfpoint{-3\pgflinewidth}{0pt}}
+%   \pgfpathlineto{\pgfpoint{-6\pgflinewidth}{-4\pgflinewidth}}
+%   \pgfusepathqfill
+% }
+
+\def\pgfarrowsdeclare#1#2#3#4{%
+  \pgf@arrows@check@already{#1}{#2}
+  {%
+    \expandafter\def\csname pgf@arrow@code@#2\endcsname{#4}%
+    \expandafter\def\csname pgf@arrow@left@#2\endcsname{#3\advance\pgf@x by-\pgf@xa}%
+    \expandafter\def\csname pgf@arrow@right@#2\endcsname{#3\advance\pgf@x by\pgf@xb}%
+    \pgf@arrows@invname{#1}{#2}%
+  }%
+}
+
+\def\pgfarrowsleftextend#1{\setlength\pgf@xa{#1}}
+\def\pgfarrowsrightextend#1{\setlength\pgf@xb{#1}}
+
+\def\pgf@arrows@repeat#1#2{%
+  \edef\pgf@arrows@marshal{\noexpand\let\expandafter\noexpand\csname#2\endcsname=\expandafter\noexpand\csname#1\endcsname}%
+  \pgf@arrows@marshal}
+
+
+
+% Declare a new arrow type to be the same as another one.
+%
+% #1 = name of new start
+% #2 = name or new end
+% #3 = name or old start
+% #4 = name or old end
+%
+% Example:
+%
+% \pgfarrowsdeclarealias{<}{>}{to}{to}
+
+\def\pgfarrowsdeclarealias#1#2#3#4{%
+  \pgf@arrows@check@already{#1}{#2}
+  {%
+    \pgf@arrows@checked{#3}{#4}%
+    {%
+      \pgf@arrows@repeat{pgf@arrow@code@#4}{pgf@arrow@code@#2}%
+      \pgf@arrows@repeat{pgf@arrow@left@#4}{pgf@arrow@left@#2}%
+      \pgf@arrows@repeat{pgf@arrow@right@#4}{pgf@arrow@right@#2}%
+      \pgf@arrows@invname{#1}{#2}%
+    }%
+  }%
+}
+
+
+
+
+% Creates a new arrows by ``swapping'' an existing arrow.
+%
+% #1 = name of new start
+% #2 = name of new end
+% #3 = name of old start
+% #4 = name of old end
+%
+% Example:
+%
+% \pgfarrowsdeclarealias{]}{[}{[}{]}
+
+\def\pgfarrowsdeclarereversed#1#2#3#4{%
+  \pgf@arrows@check@already{#1}{#2}%
+  {%
+    \pgf@arrows@checked{#3}{#4}%
+    {%
+      \expandafter\def\csname pgf@arrow@code@#2\endcsname{%
+        \pgflowlevel{\pgftransformxscale{-1}}%
+        \csname pgf@arrow@code@#4\endcsname}%
+      \pgf@arrows@repeat{pgf@arrow@right@#4}{pgf@arrow@left@#2}%
+      \pgf@arrows@repeat{pgf@arrow@left@#4}{pgf@arrow@right@#2}%
+      \pgf@arrows@invname{#1}{#2}%
+    }%
+  }%
+}
+
+
+
+% Creates new arrows by combining two existing arrows.
+%
+% #1 = optional additional space
+% #2 = name of new start
+% #3 = name of new end
+% #4 = name of second (innermost) start
+% #5 = name of second end
+% #6 = name of first (outermost) start
+% #7 = name of first end
+%
+% In the star form, the line will end at the innermost arrows,
+% otherwise the line will end at the outermost arrows.
+%
+% Example:
+%
+% \pgfarrowsdeclarecombine*{|<}{>|}{|}{|}{<}{>}
+% \pgfarrowsdeclarecombine{<<}{>>}{<}{>}{<}{>}
+
+\def\pgfarrowsdeclarecombine{\@ifnextchar*{\pgfarrowsdeclarecombine@star}{\pgf@@arrowsdeclarecombine}}
+
+\def\pgf@@arrowsdeclarecombine{\@ifnextchar[{\pgf@arrowsdeclarecombine}{\pgf@arrowsdeclarecombine[0pt]}}
+\def\pgf@arrowsdeclarecombine[#1]#2#3#4#5#6#7{%
+  \pgf@arrows@check@already{#2}{#3}%
+  {%
+    \pgf@arrows@checked{#4}{#5}%
+    {%
+      \pgf@arrows@checked{#6}{#7}%
+      {%
+        \expandafter\edef\csname pgf@arrow@code@#3\endcsname{%
+          \noexpand\pgfscope%
+          {\expandafter\noexpand\csname pgf@arrow@code@#7\endcsname}%
+          \noexpand\endpgfscope%
+          {%
+            \noexpand\setlength\pgf@x{#1}%
+            \noexpand\pgf@process{\expandafter\noexpand\csname pgf@arrow@left@#7\endcsname}%
+            \noexpand\pgf@process{\expandafter\noexpand\csname pgf@arrow@right@#5\endcsname}%
+            \pgf@x=-\pgf@x%
+            \noexpand\pgflowlevel{\noexpand\pgftransformxshift{\pgf@x}}%
+            \expandafter\noexpand\csname pgf@arrow@code@#5\endcsname}%
+          }%
+        \pgf@arrows@repeat{pgf@arrow@right@#7}{pgf@arrow@right@#3}%
+        \expandafter\def\csname pgf@arrow@left@#3\endcsname{%
+          \pgf@process{%
+            \setlength\pgf@y{#1}%
+            \advance\pgf@x by\pgf@y%
+            \pgf@process{\csname pgf@arrow@left@#7\endcsname}%
+            \pgf@process{\csname pgf@arrow@right@#5\endcsname}%
+            \pgf@process{\csname pgf@arrow@left@#5\endcsname}%
+          }%
+        }%
+        \pgf@arrows@invname{#2}{#3}%
+      }%
+    }%
+  }%
+}
+
+\def\pgfarrowsdeclarecombine@star*{\@ifnextchar[{\pgf@arrowsdeclarecombine@star}{\pgf@arrowsdeclarecombine@star[0pt]}}
+\def\pgf@arrowsdeclarecombine@star[#1]#2#3#4#5#6#7{%
+  \pgf@arrows@check@already{#2}{#3}%
+  {%
+    \pgf@arrows@checked{#4}{#5}%
+    {%
+      \pgf@arrows@checked{#6}{#7}%
+      {%
+        \expandafter\edef\csname pgf@arrow@code@#3\endcsname{%
+          \noexpand\pgfscope%
+            {%
+              \noexpand\setlength\pgf@x{#1}%
+              \pgf@process{\expandafter\noexpand\csname pgf@arrow@left@#7\endcsname}%
+              \pgf@process{\expandafter\noexpand\csname pgf@arrow@right@#5\endcsname}%
+              \noexpand\pgflowlevel{\noexpand\pgftransformxshift{\pgf@x}}%
+            }%
+            {\expandafter\noexpand\csname pgf@arrow@code@#7\endcsname}%
+          \noexpand\endpgfscope%
+          \expandafter\noexpand\csname pgf@arrow@code@#5\endcsname%
+        }%
+        \pgf@arrows@repeat{pgf@arrow@left@#7}{pgf@arrow@left@#3}%
+        \expandafter\def\csname pgf@arrow@right@#3\endcsname{%
+          \pgf@process{%
+            \setlength\pgf@y{#1}%
+            \advance\pgf@x by\pgf@y%
+            \pgf@process{\csname pgf@arrow@left@#7\endcsname}%
+            \pgf@process{\csname pgf@arrow@right@#5\endcsname}%
+            \pgf@process{\csname pgf@arrow@right@#7\endcsname}%
+          }%
+        }%
+        \pgf@arrows@invname{#2}{#3}%
+      }%
+    }%
+  }%
+}
+
+
+
+% Creates new arrows by doubling/tripling existing arrows.
+%
+% #1 = optional additional space in multiples of line width
+% #2 = name of new start
+% #3 = name of new end
+% #4 = name of old start
+% #5 = name of old end
+%
+% Example:
+%
+% \pgfarrowsdeclaredouble{<<}{>>}{<}{>}
+
+\def\pgfarrowsdeclaredouble{\@ifnextchar[{\pgf@arrowsdeclaredouble}{\pgf@arrowsdeclaredouble[0pt]}}
+\def\pgf@arrowsdeclaredouble[#1]#2#3#4#5{\pgfarrowsdeclarecombine[#1]{#2}{#3}{#4}{#5}{#4}{#5}}
+\def\pgfarrowsdeclaretriple{\@ifnextchar[{\pgf@arrowsdeclaretriple}{\pgf@arrowsdeclaretriple[0pt]}}
+\def\pgf@arrowsdeclaretriple[#1]#2#3#4#5{%
+  \pgfarrowsdeclarecombine[#1]{pgf@trip@#2}{pgf@trip@#3}{#4}{#5}{#4}{#5}%
+  \pgfarrowsdeclarecombine[#1]{#2}{#3}{pgf@trip@#2}{pgf@trip@#3}{#4}{#5}%
+}
+
+
+% A stealth-fighter-like pointed arrow
+%
+% Example:
+%
+% \pgfsetarrows{-stealth}
+
+\pgfarrowsdeclare{stealth}{stealth}
+{
+  \@tempdima=0.28pt%
+  \advance\@tempdima by.3\pgflinewidth%
+  \pgfarrowsleftextend{-3\@tempdima}
+  \pgfarrowsrightextend{5\@tempdima}
+}
+{
+  \@tempdima=0.28pt%
+  \advance\@tempdima by.3\pgflinewidth%
+  \pgfpathmoveto{\pgfpoint{5\@tempdima}{0pt}}
+  \pgfpathlineto{\pgfpoint{-3\@tempdima}{4\@tempdima}}
+  \pgfpathlineto{\pgfpointorigin}
+  \pgfpathlineto{\pgfpoint{-3\@tempdima}{-4\@tempdima}}
+  \pgfusepathqfill
+}
+
+\pgfarrowsdeclarereversed{stealth reversed}{stealth reversed}{stealth}{stealth}
+
+
+% An arrow similar to the $\to$ arrow
+%
+% Example:
+%
+% \pgfsetarrow{-to}
+
+\pgfarrowsdeclare{to}{to}
+{
+  \@tempdima=-0.84pt%
+  \advance\@tempdima by-1.3\pgflinewidth%
+  \@tempdimb=0.21pt%
+  \advance\@tempdimb by.625\pgflinewidth%
+  \pgfarrowsleftextend{\@tempdima}
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.28pt%
+  \advance\@tempdima by.3\pgflinewidth%
+  \pgfsetlinewidth{0.8\pgflinewidth}
+  \pgfsetdash{}{0pt}
+  \pgfsetroundcap
+  \pgfsetroundjoin
+  \pgfpathmoveto{\pgfpoint{-3\@tempdima}{4\@tempdima}}
+  \pgfpathcurveto
+  {\pgfpoint{-2.75\@tempdima}{2.5\@tempdima}}
+  {\pgfpoint{0pt}{0.25\@tempdima}}
+  {\pgfpoint{0.75\@tempdima}{0pt}}
+  \pgfpathcurveto
+  {\pgfpoint{0pt}{-0.25\@tempdima}}
+  {\pgfpoint{-2.75\@tempdima}{-2.5\@tempdima}}
+  {\pgfpoint{-3\@tempdima}{-4\@tempdima}}
+  \pgfusepathqstroke
+}
+
+\pgfarrowsdeclare{to reversed}{to reversed}
+{
+  \@tempdima=-0.21pt%
+  \advance\@tempdima by-0.475\pgflinewidth%
+  \@tempdimb=0.98pt%
+  \advance\@tempdimb by1.45\pgflinewidth%
+  \pgfarrowsleftextend{\@tempdima}
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.28pt%
+  \advance\@tempdima by.3\pgflinewidth%
+  \pgfsetlinewidth{0.8\pgflinewidth}
+  \pgfsetdash{}{0pt}
+  \pgfsetroundcap
+  \pgfsetroundjoin
+  \pgfpathmoveto{\pgfpoint{3.5\@tempdima}{4\@tempdima}}
+  \pgfpathcurveto
+  {\pgfpoint{3.25\@tempdima}{2.5\@tempdima}}
+  {\pgfpoint{0.5\@tempdima}{0.25\@tempdima}}
+  {\pgfpoint{-0.25\@tempdima}{0\@tempdima}}
+  \pgfpathcurveto
+  {\pgfpoint{0.5\@tempdima}{-0.25\@tempdima}}
+  {\pgfpoint{3.25\@tempdima}{-2.5\@tempdima}}
+  {\pgfpoint{3.5\@tempdima}{-4\@tempdima}}
+  \pgfusepathqstroke
+}
+
+
+
+% LaTeX's orginal arrow type
+%
+% Example:
+%
+% \pgfsetarrows{-latex}
+
+\pgfarrowsdeclare{latex}{latex}
+{
+  \@tempdima=0.28pt%
+  \advance\@tempdima by.3\pgflinewidth%
+  \pgfarrowsleftextend{-1\@tempdima}
+  \pgfarrowsrightextend{9\@tempdima}
+}
+{
+  \@tempdima=0.28pt%
+  \advance\@tempdima by.3\pgflinewidth%
+  \pgfpathmoveto{\pgfpoint{9\@tempdima}{0pt}}
+  \pgfpathcurveto
+  {\pgfpoint{6.3333\@tempdima}{.5\@tempdima}}
+  {\pgfpoint{2\@tempdima}{2\@tempdima}}
+  {\pgfpoint{-1\@tempdima}{3.75\@tempdima}}
+  \pgfpathlineto{\pgfpoint{-1\@tempdima}{-3.75\@tempdima}}
+  \pgfpathcurveto
+  {\pgfpoint{2\@tempdima}{-2\@tempdima}}
+  {\pgfpoint{6.3333\@tempdima}{-.5\@tempdima}}
+  {\pgfpoint{9\@tempdima}{0pt}}
+  \pgfusepathqfill
+}
+\pgfarrowsdeclarereversed{latex reversed}{latex reversed}{latex}{latex}
+
+
+
+% A bar shaped arrow
+%
+% Example:
+%
+% \pgfsetarrows{-|}
+
+\pgfarrowsdeclare{|}{|}
+{
+  \pgfarrowsleftextend{-0.25\pgflinewidth}
+  \pgfarrowsrightextend{.75\pgflinewidth}
+}
+{
+  \@tempdima=2pt%
+  \advance\@tempdima by1.5\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetrectcap
+  \pgfpathmoveto{\pgfpoint{0.25\pgflinewidth}{-\@tempdima}}
+  \pgfpathlineto{\pgfpoint{0.25\pgflinewidth}{\@tempdima}}
+  \pgfusepathqstroke
+}
+
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcoregraphicstate.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcoregraphicstate.code.tex
new file mode 100644
index 00000000000..f417efcab54
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcoregraphicstate.code.tex
@@ -0,0 +1,254 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfcoregraphicstate.code.tex,v 1.3 2005/09/21 00:05:34 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+% Globals
+
+\newdimen\pgflinewidth
+
+
+% Set the line width to #1.
+% 
+% #1 = new line width.
+% 
+% Example:
+%
+% \pgfsetlinewidth{3pt}
+
+\def\pgfsetlinewidth#1{%
+  \setlength\pgflinewidth{#1}%
+  \global\pgflinewidth=\pgflinewidth%
+  \pgfsys@setlinewidth{\the\pgflinewidth}%
+  \ignorespaces}
+
+
+% Set the miter limit to #1.
+% 
+% #1 = new miter limit factor.
+% 
+% Example:
+%
+% \pgfsetmiterlimit{3}
+
+\def\pgfsetmiterlimit#1{%
+  \pgfsys@setmiterlimit{#1}%
+  \ignorespaces}
+
+
+% Set the dash pattern to #1 with phase #2/
+% 
+% #1 = a row of numbers of length of ``on'' and ``off'' points.
+% #2 = a phase
+% 
+% Example:
+%
+% \pgfsetdash{}          {0pt} % solid line
+% \pgfsetdash{{.1cm}}    {0pt} % long dashes
+% \pgfsetdash{{1pt}{1ex}}{0pt} % dotted
+
+\def\pgfsetdash#1#2{%
+  \def\pgf@temp{}%
+  \def\pgf@next{\pgf@strip}%
+  \pgf@strip#1{pgf@stop}%
+  \setlength\pgf@x{#2}%
+  \pgfsys@setdash{\pgf@temp}{\the\pgf@x}%
+  \ignorespaces}
+
+\def\pgf@strip#1{%
+  \def\pgf@@temp{#1}%
+  \ifx\pgf@@temp\pgf@stop%
+    \let\pgf@next=\relax%
+  \else%
+    \setlength\pgf@x{#1}%
+    \ifx\pgf@temp\@empty%
+      \edef\pgf@temp{\the\pgf@x}%
+    \else%
+      \edef\pgf@temp{\pgf@temp,\the\pgf@x}%
+    \fi%
+  \fi\pgf@next}
+
+\def\pgf@stop{pgf@stop}
+
+
+% Set color of strokes. This will overrule the normal color.
+% 
+% Example:
+%
+% \pgfsetstrokecolor{red}
+
+\def\pgfsetstrokecolor#1{%
+  \colorlet{pgf@tempcolor}{#1}%
+  \@ifundefined{applycolormixins}{}{\applycolormixins{pgf@tempcolor}}%
+  \expandafter\expandafter\expandafter\pgf@setstrokecolor\csname\string\color@pgf@tempcolor\endcsname%
+}
+\def\pgf@setstrokecolor#1#2#3#4#5{%
+  \expandafter\ifx\csname pgfsys@color@#4@stroke\endcsname\relax%
+    \PackageError{pgfbase}{Unsupported color model `#4'. Sorry}{}%
+  \else%
+    \edef\pgf@colmarshal{\expandafter\noexpand\csname pgfsys@color@#4@stroke\endcsname}%
+    \pgf@uncomma#5,,%
+    \pgf@colmarshal%
+  \fi}
+
+\def\pgf@uncomma#1,{%
+  \def\pgf@coltest{#1}%
+  \ifx\pgf@coltest\@empty%
+    \let\pgf@colnext=\relax%
+  \else%
+    \expandafter\def\expandafter\pgf@colmarshal\expandafter{\pgf@colmarshal{#1}}%
+    \let\pgf@colnext=\pgf@uncomma%
+  \fi%
+  \pgf@colnext%  
+}
+
+
+% Set color of fills. This will overrule the normal color.
+% 
+% Example:
+%
+% \pgfsetfillcolor{gray}
+
+\def\pgfsetfillcolor#1{%
+  \colorlet{pgf@tempcolor}{#1}%
+  \@ifundefined{applycolormixins}{}{\applycolormixins{pgf@tempcolor}}%
+  \expandafter\expandafter\expandafter\pgf@setfillcolor\csname\string\color@pgf@tempcolor\endcsname%
+}
+\def\pgf@setfillcolor#1#2#3#4#5{%
+  \expandafter\ifx\csname pgfsys@color@#4@fill\endcsname\relax%
+    \PackageError{pgfbase}{Unsupported color model `#4'. Sorry}{}%
+  \else%
+    \edef\pgf@colmarshal{\expandafter\noexpand\csname pgfsys@color@#4@fill\endcsname}%
+    \pgf@uncomma#5,,%
+    \pgf@colmarshal%
+  \fi}
+
+
+
+% Sets both the stroke and fill color.
+% 
+% Example:
+%
+% \pgfsetcolor{blue}
+
+\def\pgfsetcolor#1{%
+  \colorlet{pgf@tempcolor}{#1}%
+  \@ifundefined{applycolormixins}{}{\applycolormixins{pgf@tempcolor}}%
+  \expandafter\expandafter\expandafter\pgf@setcolor\csname\string\color@pgf@tempcolor\endcsname%
+}
+\def\pgf@setcolor#1#2#3#4#5{%
+  \expandafter\ifx\csname pgfsys@color@#4\endcsname\relax%
+    \PackageError{pgfbase}{Unsupported color model `#4'. Sorry}{}%
+  \else%
+    \edef\pgf@colmarshal{\expandafter\noexpand\csname pgfsys@color@#4\endcsname}%
+    \pgf@uncomma#5,,%
+    \pgf@colmarshal%
+  \fi}
+
+% Code for ensuring the stroke/fill colors are correctly reset.
+\def\XC@bcolor{\pgfsys@color@reset}
+
+% Set a butt line cap.
+% 
+% Example:
+%
+% \pgfsetbuttcap
+
+\def\pgfsetbuttcap{\pgfsys@buttcap\ignorespaces}
+
+
+% Set a round line cap.
+% 
+% Example:
+%
+% \pgfsetroundcap
+
+\def\pgfsetroundcap{\pgfsys@roundcap\ignorespaces}
+
+
+% Set a rectangular line cap.
+% 
+% Example:
+%
+% \pgfsetrectcap
+
+\def\pgfsetrectcap{\pgfsys@rectcap\ignorespaces}
+
+
+% Set a miter line join.
+% 
+% Example:
+%
+% \pgfsetmiterjoin
+
+\def\pgfsetmiterjoin{\pgfsys@miterjoin\ignorespaces}
+
+
+% Set a bevel line join.
+% 
+% Example:
+%
+% \pgfsetbeveljoin
+
+\def\pgfsetbeveljoin{\pgfsys@beveljoin\ignorespaces}
+
+
+% Set a round line join.
+% 
+% Example:
+%
+% \pgfsetroundjoin
+
+\def\pgfsetroundjoin{\pgfsys@roundjoin\ignorespaces}
+
+
+% Sets the even-odd rule for filling and clipping.
+% 
+% Example:
+%
+% \pgfseteorule
+
+\def\pgfseteorule{\pgfsys@eoruletrue\ignorespaces}
+
+
+% Sets the non-zero winding number rule for filling and clipping.
+% 
+% Example:
+%
+% \pgfsetnonzerorule
+
+\def\pgfsetnonzerorule{\pgfsys@eorulefalse\ignorespaces}
+
+
+% Sets the opacity of stroking operations.
+% 
+% #1 = opacity, where 1 means fully opaque and 0 means fully
+% transparent. 
+%
+% Example:
+%
+% \pgfsetstrokeopacity{0.5}
+
+\def\pgfsetstrokeopacity#1{%
+  \edef\pgf@temp{{#1}}%
+  \expandafter\pgfsys@stroke@opacity\pgf@temp}
+
+
+% Sets the opacity of stroking operations.
+% 
+% #1 = opacity, where 1 means fully opaque and 0 means fully
+% transparent. 
+%
+% Example:
+%
+% \pgfsetfillopacity{0.5}
+
+\def\pgfsetfillopacity#1{%
+  \edef\pgf@temp{{#1}}%
+  \expandafter\pgfsys@fill@opacity\pgf@temp}
+
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcoremath.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcoremath.code.tex
new file mode 100644
index 00000000000..a05d934f12b
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcoremath.code.tex
@@ -0,0 +1,262 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfcoremath.code.tex,v 1.1.1.1 2005/06/29 12:14:04 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+% Mathematical stuff
+
+
+% Internal registers
+\newcounter{pgf@counta}
+\newcounter{pgf@countb}
+\newcounter{pgf@countc}
+\newcounter{pgf@countd}
+
+% Internal setting function
+\def\pgf@setmath#1#2{\edef\pgf@temp{#2pt}\csname pgf@#1\endcsname=\pgf@temp}
+
+
+% Calculate sin of a degree
+%
+% #1 = degree
+%
+% x  = sin of #1
+%
+% Example:
+%
+% \pgfsin{30}
+
+\def\pgfsin#1{%
+  \pgf@setcounter{pgf@counta}{#1}\relax%
+  \c@pgf@countb=90%
+  \advance\c@pgf@countb by-\c@pgf@counta%
+  \ifnum\c@pgf@countb>179%
+  \advance\c@pgf@countb by-360%
+  \else%
+  \ifnum\c@pgf@countb<-179%
+  \advance\c@pgf@countb by360%
+  \fi\fi%
+  \ifnum\c@pgf@countb<0\relax%
+  \c@pgf@countb=-\c@pgf@countb%
+  \fi%
+  \pgf@setmath{x}{\csname pgf@cos\the\c@pgf@countb\endcsname}}
+
+
+% Calculate cos of a degree
+%
+% #1 = degree
+%
+% x  = cos of #1
+%
+% Example:
+%
+% \pgfcos{30}
+
+\def\pgfcos#1{%
+  \pgf@setcounter{pgf@counta}{#1}%
+  \ifnum\c@pgf@counta>179%
+  \advance\c@pgf@counta by-360%
+  \else%
+  \ifnum\c@pgf@counta<-179%
+  \advance\c@pgf@counta by360%
+  \fi\fi%
+  \ifnum\c@pgf@counta<0\relax%
+  \c@pgf@counta=-\c@pgf@counta%
+  \fi%
+  \pgf@setmath{x}{\csname pgf@cos\the\c@pgf@counta\endcsname}}
+
+
+
+% Calculate sin and cos of a degree
+%
+% #1 = degree
+%
+% x  = cos of #1
+% y  = sin of #1
+%
+% Example:
+%
+% \pgfcos{30}
+
+\def\pgfsincos#1{%
+  \pgf@setcounter{pgf@counta}{#1}%
+  \ifnum\c@pgf@counta>179%
+  \advance\c@pgf@counta by-360%
+  \else%
+  \ifnum\c@pgf@counta<-179%
+  \advance\c@pgf@counta by360%
+  \fi\fi\relax%
+  \c@pgf@countb=\c@pgf@counta\relax%
+  \ifnum\c@pgf@counta<0\relax%
+  \c@pgf@counta=-\c@pgf@counta%
+  \fi\relax%
+  \pgf@setmath{y}{\csname pgf@cos\the\c@pgf@counta\endcsname}%
+  \c@pgf@counta=90%
+  \advance\c@pgf@counta by-\c@pgf@countb\relax%
+  \ifnum\c@pgf@counta>179%
+  \advance\c@pgf@counta by-360%
+  \else%
+  \ifnum\c@pgf@counta<-179%
+  \advance\c@pgf@counta by360%
+  \fi\fi\relax%
+  \ifnum\c@pgf@counta<0\relax%
+  \c@pgf@counta=-\c@pgf@counta%
+  \fi\relax%
+  \pgf@setmath{x}{\csname pgf@cos\the\c@pgf@counta\endcsname}}
+
+
+% Internal tables
+
+\def\pgf@def#1#2#3{\expandafter\def\csname pgf@#1#2\endcsname{#3}}
+\pgf@def{cos}{0}{1}           \pgf@def{cos}{1}{0.999848}
+\pgf@def{cos}{2}{0.999391}    \pgf@def{cos}{3}{0.99863}
+\pgf@def{cos}{4}{0.997564}    \pgf@def{cos}{5}{0.996195}
+\pgf@def{cos}{6}{0.994522}    \pgf@def{cos}{7}{0.992546}
+\pgf@def{cos}{8}{0.990268}    \pgf@def{cos}{9}{0.987688}
+\pgf@def{cos}{10}{0.984808}   \pgf@def{cos}{11}{0.981627}
+\pgf@def{cos}{12}{0.978148}   \pgf@def{cos}{13}{0.97437}
+\pgf@def{cos}{14}{0.970296}   \pgf@def{cos}{15}{0.965926}
+\pgf@def{cos}{16}{0.961262}   \pgf@def{cos}{17}{0.956305}
+\pgf@def{cos}{18}{0.951057}   \pgf@def{cos}{19}{0.945519}
+\pgf@def{cos}{20}{0.939693}   \pgf@def{cos}{21}{0.93358}
+\pgf@def{cos}{22}{0.927184}   \pgf@def{cos}{23}{0.920505}
+\pgf@def{cos}{24}{0.913545}   \pgf@def{cos}{25}{0.906308}
+\pgf@def{cos}{26}{0.898794}   \pgf@def{cos}{27}{0.891007}
+\pgf@def{cos}{28}{0.882948}   \pgf@def{cos}{29}{0.87462}
+\pgf@def{cos}{30}{0.866025}   \pgf@def{cos}{31}{0.857167}
+\pgf@def{cos}{32}{0.848048}   \pgf@def{cos}{33}{0.838671}
+\pgf@def{cos}{34}{0.829038}   \pgf@def{cos}{35}{0.819152}
+\pgf@def{cos}{36}{0.809017}   \pgf@def{cos}{37}{0.798636}
+\pgf@def{cos}{38}{0.788011}   \pgf@def{cos}{39}{0.777146}
+\pgf@def{cos}{40}{0.766044}   \pgf@def{cos}{41}{0.75471}
+\pgf@def{cos}{42}{0.743145}   \pgf@def{cos}{43}{0.731354}
+\pgf@def{cos}{44}{0.71934}    \pgf@def{cos}{45}{0.707107}
+\pgf@def{cos}{46}{0.694658}   \pgf@def{cos}{47}{0.681998}
+\pgf@def{cos}{48}{0.669131}   \pgf@def{cos}{49}{0.656059}
+\pgf@def{cos}{50}{0.642788}   \pgf@def{cos}{51}{0.62932}
+\pgf@def{cos}{52}{0.615661}   \pgf@def{cos}{53}{0.601815}
+\pgf@def{cos}{54}{0.587785}   \pgf@def{cos}{55}{0.573576}
+\pgf@def{cos}{56}{0.559193}   \pgf@def{cos}{57}{0.544639}
+\pgf@def{cos}{58}{0.529919}   \pgf@def{cos}{59}{0.515038}
+\pgf@def{cos}{60}{0.5}        \pgf@def{cos}{61}{0.48481}
+\pgf@def{cos}{62}{0.469472}   \pgf@def{cos}{63}{0.45399}
+\pgf@def{cos}{64}{0.438371}   \pgf@def{cos}{65}{0.422618}
+\pgf@def{cos}{66}{0.406737}   \pgf@def{cos}{67}{0.390731}
+\pgf@def{cos}{68}{0.374607}   \pgf@def{cos}{69}{0.358368}
+\pgf@def{cos}{70}{0.34202}    \pgf@def{cos}{71}{0.325568}
+\pgf@def{cos}{72}{0.309017}   \pgf@def{cos}{73}{0.292372}
+\pgf@def{cos}{74}{0.275637}   \pgf@def{cos}{75}{0.258819}
+\pgf@def{cos}{76}{0.241922}   \pgf@def{cos}{77}{0.224951}
+\pgf@def{cos}{78}{0.207912}   \pgf@def{cos}{79}{0.190809}
+\pgf@def{cos}{80}{0.173648}   \pgf@def{cos}{81}{0.156434}
+\pgf@def{cos}{82}{0.139173}   \pgf@def{cos}{83}{0.121869}
+\pgf@def{cos}{84}{0.104528}   \pgf@def{cos}{85}{0.0871557}
+\pgf@def{cos}{86}{0.0697565}  \pgf@def{cos}{87}{0.052336}
+\pgf@def{cos}{88}{0.0348995}  \pgf@def{cos}{89}{0.0174524}
+\pgf@def{cos}{90}{0}          \pgf@def{cos}{91}{-0.0174524}
+\pgf@def{cos}{92}{-0.0348995} \pgf@def{cos}{93}{-0.052336}
+\pgf@def{cos}{94}{-0.0697565} \pgf@def{cos}{95}{-0.0871557}
+\pgf@def{cos}{96}{-0.104528}  \pgf@def{cos}{97}{-0.121869}
+\pgf@def{cos}{98}{-0.139173}  \pgf@def{cos}{99}{-0.156434}
+\pgf@def{cos}{100}{-0.173648} \pgf@def{cos}{101}{-0.190809}
+\pgf@def{cos}{102}{-0.207912} \pgf@def{cos}{103}{-0.224951}
+\pgf@def{cos}{104}{-0.241922} \pgf@def{cos}{105}{-0.258819}
+\pgf@def{cos}{106}{-0.275637} \pgf@def{cos}{107}{-0.292372}
+\pgf@def{cos}{108}{-0.309017} \pgf@def{cos}{109}{-0.325568}
+\pgf@def{cos}{110}{-0.34202}  \pgf@def{cos}{111}{-0.358368}
+\pgf@def{cos}{112}{-0.374607} \pgf@def{cos}{113}{-0.390731}
+\pgf@def{cos}{114}{-0.406737} \pgf@def{cos}{115}{-0.422618}
+\pgf@def{cos}{116}{-0.438371} \pgf@def{cos}{117}{-0.45399}
+\pgf@def{cos}{118}{-0.469472} \pgf@def{cos}{119}{-0.48481}
+\pgf@def{cos}{120}{-0.5}      \pgf@def{cos}{121}{-0.515038}
+\pgf@def{cos}{122}{-0.529919} \pgf@def{cos}{123}{-0.544639}
+\pgf@def{cos}{124}{-0.559193} \pgf@def{cos}{125}{-0.573576}
+\pgf@def{cos}{126}{-0.587785} \pgf@def{cos}{127}{-0.601815}
+\pgf@def{cos}{128}{-0.615661} \pgf@def{cos}{129}{-0.62932}
+\pgf@def{cos}{130}{-0.642788} \pgf@def{cos}{131}{-0.656059}
+\pgf@def{cos}{132}{-0.669131} \pgf@def{cos}{133}{-0.681998}
+\pgf@def{cos}{134}{-0.694658} \pgf@def{cos}{135}{-0.707107}
+\pgf@def{cos}{136}{-0.71934}  \pgf@def{cos}{137}{-0.731354}
+\pgf@def{cos}{138}{-0.743145} \pgf@def{cos}{139}{-0.75471}
+\pgf@def{cos}{140}{-0.766044} \pgf@def{cos}{141}{-0.777146}
+\pgf@def{cos}{142}{-0.788011} \pgf@def{cos}{143}{-0.798636}
+\pgf@def{cos}{144}{-0.809017} \pgf@def{cos}{145}{-0.819152}
+\pgf@def{cos}{146}{-0.829038} \pgf@def{cos}{147}{-0.838671}
+\pgf@def{cos}{148}{-0.848048} \pgf@def{cos}{149}{-0.857167}
+\pgf@def{cos}{150}{-0.866025} \pgf@def{cos}{151}{-0.87462}
+\pgf@def{cos}{152}{-0.882948} \pgf@def{cos}{153}{-0.891007}
+\pgf@def{cos}{154}{-0.898794} \pgf@def{cos}{155}{-0.906308}
+\pgf@def{cos}{156}{-0.913545} \pgf@def{cos}{157}{-0.920505}
+\pgf@def{cos}{158}{-0.927184} \pgf@def{cos}{159}{-0.93358}
+\pgf@def{cos}{160}{-0.939693} \pgf@def{cos}{161}{-0.945519}
+\pgf@def{cos}{162}{-0.951057} \pgf@def{cos}{163}{-0.956305}
+\pgf@def{cos}{164}{-0.961262} \pgf@def{cos}{165}{-0.965926}
+\pgf@def{cos}{166}{-0.970296} \pgf@def{cos}{167}{-0.97437}
+\pgf@def{cos}{168}{-0.978148} \pgf@def{cos}{169}{-0.981627}
+\pgf@def{cos}{170}{-0.984808} \pgf@def{cos}{171}{-0.987688}
+\pgf@def{cos}{172}{-0.990268} \pgf@def{cos}{173}{-0.992546}
+\pgf@def{cos}{174}{-0.994522} \pgf@def{cos}{175}{-0.996195}
+\pgf@def{cos}{176}{-0.997564} \pgf@def{cos}{177}{-0.99863}
+\pgf@def{cos}{178}{-0.999391} \pgf@def{cos}{179}{-0.999848}
+\pgf@def{cos}{180}{-1}
+
+
+
+\pgf@def{cosfrac}{0}{1}
+\pgf@def{cosfrac}{1}{0.99995}    \pgf@def{cosfrac}{2}{0.9998}
+\pgf@def{cosfrac}{3}{0.99955}    \pgf@def{cosfrac}{4}{0.999201}
+\pgf@def{cosfrac}{5}{0.998752}   \pgf@def{cosfrac}{6}{0.998205}
+\pgf@def{cosfrac}{7}{0.997559}   \pgf@def{cosfrac}{8}{0.996815}
+\pgf@def{cosfrac}{9}{0.995974}   \pgf@def{cosfrac}{10}{0.995037}
+\pgf@def{cosfrac}{11}{0.994004}  \pgf@def{cosfrac}{12}{0.992877}
+\pgf@def{cosfrac}{13}{0.991656}  \pgf@def{cosfrac}{14}{0.990342}
+\pgf@def{cosfrac}{15}{0.988936}  \pgf@def{cosfrac}{16}{0.987441}
+\pgf@def{cosfrac}{17}{0.985856}  \pgf@def{cosfrac}{18}{0.984183}
+\pgf@def{cosfrac}{19}{0.982424}  \pgf@def{cosfrac}{20}{0.980581}
+\pgf@def{cosfrac}{21}{0.978653}  \pgf@def{cosfrac}{22}{0.976644}
+\pgf@def{cosfrac}{23}{0.974555}  \pgf@def{cosfrac}{24}{0.972387}
+\pgf@def{cosfrac}{25}{0.970143}  \pgf@def{cosfrac}{26}{0.967823}
+\pgf@def{cosfrac}{27}{0.965429}  \pgf@def{cosfrac}{28}{0.962964}
+\pgf@def{cosfrac}{29}{0.960429}  \pgf@def{cosfrac}{30}{0.957826}
+\pgf@def{cosfrac}{31}{0.955157}  \pgf@def{cosfrac}{32}{0.952424}
+\pgf@def{cosfrac}{33}{0.949629}  \pgf@def{cosfrac}{34}{0.946773}
+\pgf@def{cosfrac}{35}{0.943858}  \pgf@def{cosfrac}{36}{0.940887}
+\pgf@def{cosfrac}{37}{0.937862}  \pgf@def{cosfrac}{38}{0.934784}
+\pgf@def{cosfrac}{39}{0.931655}  \pgf@def{cosfrac}{40}{0.928477}
+\pgf@def{cosfrac}{41}{0.925252}  \pgf@def{cosfrac}{42}{0.921982}
+\pgf@def{cosfrac}{43}{0.918669}  \pgf@def{cosfrac}{44}{0.915315}
+\pgf@def{cosfrac}{45}{0.911922}  \pgf@def{cosfrac}{46}{0.90849}
+\pgf@def{cosfrac}{47}{0.905024}  \pgf@def{cosfrac}{48}{0.901523}
+\pgf@def{cosfrac}{49}{0.89799}   \pgf@def{cosfrac}{50}{0.894427}
+\pgf@def{cosfrac}{51}{0.890835}  \pgf@def{cosfrac}{52}{0.887217}
+\pgf@def{cosfrac}{53}{0.883573}  \pgf@def{cosfrac}{54}{0.879905}
+\pgf@def{cosfrac}{55}{0.876216}  \pgf@def{cosfrac}{56}{0.872506}
+\pgf@def{cosfrac}{57}{0.868777}  \pgf@def{cosfrac}{58}{0.865031}
+\pgf@def{cosfrac}{59}{0.861269}  \pgf@def{cosfrac}{60}{0.857493}
+\pgf@def{cosfrac}{61}{0.853704}  \pgf@def{cosfrac}{62}{0.849903}
+\pgf@def{cosfrac}{63}{0.846092}  \pgf@def{cosfrac}{64}{0.842271}
+\pgf@def{cosfrac}{65}{0.838444}  \pgf@def{cosfrac}{66}{0.834609}
+\pgf@def{cosfrac}{67}{0.83077}   \pgf@def{cosfrac}{68}{0.826927}
+\pgf@def{cosfrac}{69}{0.82308}   \pgf@def{cosfrac}{70}{0.819232}
+\pgf@def{cosfrac}{71}{0.815383}  \pgf@def{cosfrac}{72}{0.811534}
+\pgf@def{cosfrac}{73}{0.807687}  \pgf@def{cosfrac}{74}{0.803842}
+\pgf@def{cosfrac}{75}{0.8}       \pgf@def{cosfrac}{76}{0.796162}
+\pgf@def{cosfrac}{77}{0.792329}  \pgf@def{cosfrac}{78}{0.788502}
+\pgf@def{cosfrac}{79}{0.784682}  \pgf@def{cosfrac}{80}{0.780869}
+\pgf@def{cosfrac}{81}{0.777064}  \pgf@def{cosfrac}{82}{0.773268}
+\pgf@def{cosfrac}{83}{0.769481}  \pgf@def{cosfrac}{84}{0.765705}
+\pgf@def{cosfrac}{85}{0.761939}  \pgf@def{cosfrac}{86}{0.758185}
+\pgf@def{cosfrac}{87}{0.754443}  \pgf@def{cosfrac}{88}{0.750714}
+\pgf@def{cosfrac}{89}{0.746997}  \pgf@def{cosfrac}{90}{0.743294}
+\pgf@def{cosfrac}{91}{0.739605}  \pgf@def{cosfrac}{92}{0.735931}
+\pgf@def{cosfrac}{93}{0.732272}  \pgf@def{cosfrac}{94}{0.728628}
+\pgf@def{cosfrac}{95}{0.724999}  \pgf@def{cosfrac}{96}{0.721387}
+\pgf@def{cosfrac}{97}{0.717792}  \pgf@def{cosfrac}{98}{0.714213}
+\pgf@def{cosfrac}{99}{0.710651}  \pgf@def{cosfrac}{100}{0.707107}
+
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcoreobjects.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcoreobjects.code.tex
new file mode 100644
index 00000000000..fd12c5d9146
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcoreobjects.code.tex
@@ -0,0 +1,97 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfcoreobjects.code.tex,v 1.1.1.1 2005/06/29 12:14:04 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+% Object reuse
+
+
+% Define a pgf object for reuse. Such objects will be stored
+% efficiently internally.
+%
+% #1 = name for later reuse
+% #2 = lower left corner point of bounding box
+% #3 = upper right left corner point of bounding box
+% #4 = pure pgf code (nothing too fancy!)
+%
+% Description:
+% 
+% Used to define reusable objects. The object must be composed of
+% basic pgf graphic primitives. Nothing fancy can be used. The
+% created object will be stored as an xform object in pdf or as a
+% postscript procedure in postscript.
+%  
+% Example:
+%
+% \pgfdefobject{myrect}{\pgfpoint{-1pt}{-1pt}}{\pgfpoint{11pt}{11pt}}
+% {\pgfpathqmoveto{0pt}{0pt}
+%  \pgfpathqmoveto{10pt}{0pt}
+%  \pgfpathqmoveto{10pt}{10pt}
+%  \pgfpathqmoveto{0pt}{10pt}
+%  \pgfpathclose
+%  \pgfusepath{stroke}}
+%
+% \begin{pgfpicture}{0cm}{0cm}{1cm}{1cm}
+%   \pgfuseobject{myrect}
+% \end{pgfpicture}
+
+\def\pgfdefobject#1#2#3#4{%
+  \pgfinterruptpath%
+    \pgf@relevantforpicturesizefalse%
+    \pgfsys@defobject{#1}{#2}{#3}{#4}%
+  \endpgfinterruptpath%
+  \ignorespaces%
+}
+
+
+% Use an object that was previously defined using pgfdefobject
+%
+% #1 = name of previously defined object
+%  
+% Example:
+%
+% \pgfdefobject{myrect}{\pgfpoint{-1pt}{-1pt}}{\pgfpoint{11pt}{11pt}}
+% {\pgfqmoveto{0}{0}
+%  \pgfqmoveto{10}{0}
+%  \pgfqmoveto{10}{10}
+%  \pgfqmoveto{0}{10}
+%  \pgfclosestroke}
+%
+% \begin{pgfpicture}{0cm}{0cm}{1cm}{1cm}
+%   \pgfuseobject{myrect}
+% \end{pgfpicture}
+
+\def\pgfuseobject#1{\pgfsys@beginscope\pgfsys@useobject{#1}{}\pgfsys@endscope}
+
+
+% Use an object that was previously defined using pgfdefobject, but
+% magnify the object by the current x and y register values
+%
+% #1 = name of previously defined object
+%  
+% Example:
+%
+% \pgfdefobject{myrect}{\pgfpoint{-1pt}{-1pt}}{\pgfpoint{11pt}{11pt}}
+% {\pgfqmoveto{0}{0}
+%  \pgfqmoveto{10}{0}
+%  \pgfqmoveto{10}{10}
+%  \pgfqmoveto{0}{10}
+%  \pgfclosestroke}
+%
+% \begin{pgfpicture}{0cm}{0cm}{1cm}{1cm}
+%   \pgf@x=2pt% Scale by factor two in x-direction
+%   \pgf@y=2pt% Scale by factor two in y-direction
+%   \pgfuseobjectmagnify{myrect}
+% \end{pgfpicture}
+
+\def\pgfuseobjectmagnify#1{%
+  \pgfsys@beginscope%
+  \pgfsys@useobject{#1}{\pgfsys@transformxyscale{\pgf@sys@tonumber{\pgf@x}}{\pgf@sys@tonumber{\pgf@y}}}%
+  \pgfsys@endscope%
+}
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepathconstruction.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepathconstruction.code.tex
new file mode 100644
index 00000000000..b96bf719320
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepathconstruction.code.tex
@@ -0,0 +1,826 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfcorepathconstruction.code.tex,v 1.2 2005/09/30 07:14:03 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+\newdimen\pgf@path@lastx
+\newdimen\pgf@path@lasty
+
+
+
+% Replace corners by arcs.
+%
+% #1 = in-size of arc
+% #2 = out-size of arc
+% 
+% Description:
+% 
+% This command influences path construction command like
+% \pgfpathlineto or \pgfpatharc. It will cause the corners at the end
+% of these commands to be replaced by little arcs. If the
+% corner is a 90 degrees corner and if #1=#2, a quarter-circle of
+% radius #1 is put in place of the corner. If #1 and #2 are different,
+% the quarter circle will instead by a quarter ellipse. If the angle
+% is different from 90 degrees, a deformed quarter circle will
+% result, which may or may not be desirable. For a ``perfect'' arc you
+% must use the \pgfpatharc command. 
+% 
+% 
+% Example: One rounded corner.
+%
+% \pgfpathmoveto{\pgfpointxy{0}{0}}
+% \pgfsetcornersarced{4pt}{4pt}
+% \pgfpathlineto{\pgfpointxy{0}{1}}
+% \pgfpathlineto{\pgfpointxy{1}{1}}
+% \pgfstroke
+%
+% Example: A rounded rectangle
+%
+% \pgfsetcornersarced{4pt}{4pt}
+% \pgfpathrectangle{\pgfpointorigin}{\pgfpoint{1cm}{1cm}}
+% \pgfstroke
+%
+% Example: A rounded triangles
+%
+% \pgfsetcornersarced{4pt}{4pt}
+% \pgfpathmoveto{\pgfpointorigin}
+% \pgfpathlineto{\pgfpoint{1cm}{0cm}}
+% \pgfpathlineto{\pgfpoint{1cm}{1cm}}
+% \pgfpathclose
+% \pgfstroke
+
+\newif\ifpgf@arccorners
+
+\def\pgfsetcornersarced#1{%
+  \pgf@process{#1}%
+  \edef\pgf@corner@arc{{\the\pgf@x}{\the\pgf@y}}%
+  \pgf@arccornerstrue%
+  \ifdim\pgf@x=0pt%
+    \ifdim\pgf@y=0pt\relax%
+      \pgf@arccornersfalse%
+    \fi%
+  \fi%
+}
+
+\def\pgf@roundcornerifneeded{%
+  \ifpgf@arccorners\expandafter\pgfsyssoftpath@specialround\pgf@corner@arc\fi%
+}
+
+
+% Move current point to #1.
+%
+% #1 = new current point
+% 
+% Example:
+%
+% \pgfpathmoveto{\pgfxy(0,0)}
+% \pgfpathlineto{\pgfxy(0,1)}
+% \pgfstroke
+
+\def\pgfpathmoveto#1{%
+  \pgfpointtransformed{#1}%
+  \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+  \pgfsyssoftpath@moveto{\the\pgf@x}{\the\pgf@y}%
+  \global\pgf@path@lastx=\pgf@x%
+  \global\pgf@path@lasty=\pgf@y%
+}
+
+\def\pgf@protocolsizes#1#2{%
+  \ifpgf@relevantforpicturesize%
+    \ifdim#1<\pgf@picminx\global\pgf@picminx#1\fi%
+    \ifdim#1>\pgf@picmaxx\global\pgf@picmaxx#1\fi%
+    \ifdim#2<\pgf@picminy\global\pgf@picminy#2\fi%
+    \ifdim#2>\pgf@picmaxy\global\pgf@picmaxy#2\fi%
+  \fi%
+  \ifdim#1<\pgf@pathminx\global\pgf@pathminx#1\fi%
+  \ifdim#1>\pgf@pathmaxx\global\pgf@pathmaxx#1\fi%
+  \ifdim#2<\pgf@pathminy\global\pgf@pathminy#2\fi%
+  \ifdim#2>\pgf@pathmaxy\global\pgf@pathmaxy#2\fi%
+}
+
+
+\def\pgf@resetpathsizes{%
+  \global\pgf@pathmaxx=-16000pt\relax%
+  \global\pgf@pathminx=16000pt\relax%
+  \global\pgf@pathmaxy=-16000pt\relax%
+  \global\pgf@pathminy=16000pt\relax%
+}
+
+\def\pgf@getpathsizes#1{%
+  \edef#1{{\the\pgf@pathmaxx}{\the\pgf@pathminx}{\the\pgf@pathmaxy}{\the\pgf@pathminy}}%
+}
+\def\pgf@setpathsizes#1{%
+  \expandafter\pgf@@setpathsizes#1%
+}
+\def\pgf@@setpathsizes#1#2#3#4{%
+  \global\pgf@pathmaxx=#1\relax%
+  \global\pgf@pathminx=#2\relax%
+  \global\pgf@pathmaxy=#3\relax%
+  \global\pgf@pathminy=#4\relax%
+}
+
+
+
+
+
+% Append a line from the current point to #1 to the current path.
+%
+% #1 = end of line
+% 
+% Example:
+%
+% \pgfpathmoveto{\pgfxy(0,0)}
+% \pgfpathlineto{\pgfxy(0,1)}
+% \pgfstroke
+
+\def\pgfpathlineto#1{%
+  \pgfpointtransformed{#1}%
+  \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+  \pgf@roundcornerifneeded%
+  \pgfsyssoftpath@lineto{\the\pgf@x}{\the\pgf@y}%
+  \global\pgf@path@lastx=\pgf@x%
+  \global\pgf@path@lasty=\pgf@y%
+}
+
+
+
+% Close the current path.
+%
+% Example:
+%
+% % Draws two triangles
+% \pgfpathmoveto{\pgfxy(0,0)}
+% \pgfpathlineto{\pgfxy(0,1)}
+% \pgfpathlineto{\pgfxy(1,0)}
+% \pgfclosepath
+% \pgfpathmoveto{\pgfxy(2,0)}
+% \pgfpathlineto{\pgfxy(2,1)}
+% \pgfpathlineto{\pgfxy(3,0)}
+% \pgfpathclose
+% \pgfstroke
+
+\def\pgfpathclose{%
+  \pgf@roundcornerifneeded%
+  \pgfsyssoftpath@closepath%
+}
+
+
+% Append a bezier spline from the current point to #3 with control
+% points #1 and #2 to the current path.
+%
+% #1 = first control point
+% #2 = second control point
+% #3 = end point
+% 
+% Example:
+%
+% \pgfpathmoveto{\pgfxy(0,0)}
+% \pgfpathcurveto{\pgfxy(0,1)}{\pgfxy(1,1)}{\pgfxy(1,2)}
+% \pgfstroke
+
+\def\pgfpathcurveto#1#2#3{%
+  \pgfpointtransformed{#3}%
+  \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+  \pgf@xb=\pgf@x%
+  \pgf@yb=\pgf@y%
+  \pgfpointtransformed{#2}%
+  \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \pgfpointtransformed{#1}%
+  \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+  \pgf@roundcornerifneeded%
+  \pgfsyssoftpath@curveto{\the\pgf@x}{\the\pgf@y}{\the\pgf@xa}{\the\pgf@ya}{\the\pgf@xb}{\the\pgf@yb}%
+  \global\pgf@path@lastx=\pgf@xb%
+  \global\pgf@path@lasty=\pgf@yb%
+}
+
+% Append an arc to the current point, where the current point is at
+% angle #1 and the end is at angle #2. If #2 > #1, the arc is drawn
+% counter-clockwise, otherwise it is clockwise.
+%
+% #1 = angle of first point
+% #2 = angle of second point
+% #3 = radius or x-radius/y-radius
+% 
+% Example:
+%
+% \pgfpathmoveto{\pgfxy(0,0)}
+% \pgfpatharc{0}{90}{2cm}
+% \pgfstroke
+
+\def\pgfpatharc#1#2#3{%
+  \pgf@setcounter{pgf@countc}{#1}%
+  \pgf@setcounter{pgf@countd}{#2}%
+  \ifnum\c@pgf@countc>360\relax%
+    \advance\c@pgf@countc by-360\relax%
+  \fi%
+  \ifnum\c@pgf@countc<-360\relax%
+    \advance\c@pgf@countc by360\relax%
+  \fi%
+  \ifnum\c@pgf@countd>360\relax%
+    \advance\c@pgf@countd by-360\relax%
+  \fi%
+  \ifnum\c@pgf@countd<-360\relax%
+    \advance\c@pgf@countd by360\relax%
+  \fi%
+  \loop%
+    \@tempcnta=\c@pgf@countc\relax%
+    \advance\@tempcnta by-\c@pgf@countd\relax%
+    \ifnum\@tempcnta<0\relax%
+      \@tempcnta=-\@tempcnta\relax%
+    \fi%
+  \ifnum\@tempcnta>90\relax%
+    \ifnum\c@pgf@countd>\c@pgf@countc\relax%
+      \@tempcnta=\c@pgf@countc\relax%
+      \advance\@tempcnta by 90\relax%
+      \expandafter\pgf@arc\expandafter{\expandafter\c@pgf@countc\expandafter}\expandafter{\the\@tempcnta}{#3}%
+      \advance\c@pgf@countc by 90\relax%
+    \else
+      \@tempcnta=\c@pgf@countc\relax%
+      \advance\@tempcnta by -90\relax%
+      \expandafter\pgf@arc\expandafter{\expandafter\c@pgf@countc\expandafter}\expandafter{\the\@tempcnta}{#3}%
+      \advance\c@pgf@countc by -90\relax%
+    \fi%
+  \repeat%
+  \pgf@roundcornerifneeded%
+  \pgf@arc{\c@pgf@countc}{\c@pgf@countd}{#3}%
+}
+
+\def\pgf@arc#1#2#3{%
+  \in@/{#3}%
+  \ifin@%
+    \pgf@@arc{#1}{#2}#3\@@%
+  \else
+    \pgf@@arc{#1}{#2}#3/#3\@@%
+  \fi%
+}
+
+\def\pgf@@arc#1#2#3/#4\@@{%
+  \setlength{\@tempdima}{#3}%
+  \setlength{\@tempdimb}{#4}%
+  \@tempcnta=#1\relax%
+  \@tempcntb=#2\relax%
+  \advance\@tempcntb by-\@tempcnta\relax%
+  \ifnum\@tempcntb<0\relax%
+    \@tempcntb=-\@tempcntb\relax%
+  \fi%
+  \ifnum\@tempcntb>85\relax% hackery to correct the control points
+    \@tempdima=0.0555\@tempdima\relax%
+    \@tempdimb=0.0555\@tempdimb\relax%
+  \else%
+    \ifnum\@tempcntb>75\relax%  
+      \@tempdima=0.055\@tempdima\relax%
+      \@tempdimb=0.055\@tempdimb\relax%
+    \else%
+      \ifnum\@tempcntb>60\relax%  
+        \@tempdima=0.0545\@tempdima\relax%
+        \@tempdimb=0.0545\@tempdimb\relax%
+      \else%
+        \@tempdima=0.054\@tempdima\relax%
+        \@tempdimb=0.054\@tempdimb\relax%
+      \fi%
+    \fi%
+  \fi
+  \@tempdima=\@tempcntb\@tempdima\relax%
+  \divide\@tempdima by 9\relax%
+  \@tempdimb=\@tempcntb\@tempdimb\relax%
+  \divide\@tempdimb by 9\relax%
+  %.. controls +(\@tempcnta+90:\@tempdima) and +(\@tempcntb-90:\@tempdima) .. +(-(#1:#3)+(#2:#3))%
+  % store first support vector in xa/ya:
+  \@tempcnta=#1\relax%
+  \ifnum#2>#1\relax%
+    \advance\@tempcnta by 90\relax%
+  \else%
+    \advance\@tempcnta by -90\relax%
+  \fi%
+  \pgfpointtransformed{\pgfpointpolar{\@tempcnta}{\@tempdima/\@tempdimb}}%
+  \advance\pgf@x by-\pgf@pt@x%
+  \advance\pgf@y by-\pgf@pt@y%
+  \pgf@xa=\pgf@path@lastx%
+  \pgf@ya=\pgf@path@lasty%
+  \advance\pgf@xa by \pgf@x%
+  \advance\pgf@ya by \pgf@y%
+  % store target in xb/yb:
+  \@tempcnta=#1\relax%
+  \pgfpointtransformed{\pgfpointpolar{\@tempcnta}{#3/#4}}%
+  \pgf@xb=\pgf@path@lastx%
+  \pgf@yb=\pgf@path@lasty%
+  \advance\pgf@xb by -\pgf@x%
+  \advance\pgf@yb by -\pgf@y%
+  \@tempcnta=#2\relax%
+  \pgfpointtransformed{\pgfpointpolar{\@tempcnta}{#3/#4}}%
+  \advance\pgf@xb by \pgf@x%
+  \advance\pgf@yb by \pgf@y%
+  % store second support xc/yc:
+  \@tempcnta=#2\relax%
+  \ifnum#2>#1\relax%
+    \advance\@tempcnta by -90\relax%
+  \else%
+    \advance\@tempcnta by 90\relax%
+  \fi%
+  \pgfpointtransformed{\pgfpointpolar{\@tempcnta}{\@tempdima/\@tempdimb}}%
+  \advance\pgf@x by-\pgf@pt@x%
+  \advance\pgf@y by-\pgf@pt@y%
+  \pgf@xc=\pgf@xb\relax%
+  \pgf@yc=\pgf@yb\relax%
+  \advance \pgf@xc by \pgf@x\relax%
+  \advance \pgf@yc by \pgf@y\relax%
+  \pgfsyssoftpath@curveto{\the\pgf@xa}{\the\pgf@ya}{\the\pgf@xc}{\the\pgf@yc}{\the\pgf@xb}{\the\pgf@yb}%
+  \global\pgf@path@lastx=\pgf@xb%
+  \global\pgf@path@lasty=\pgf@yb%
+  \pgf@protocolsizes{\pgf@xa}{\pgf@ya}%
+  \pgf@protocolsizes{\pgf@xb}{\pgf@yb}%
+  \pgf@protocolsizes{\pgf@xc}{\pgf@yc}%
+}
+
+% Append  an ellipse to the current path.
+%
+% #1 = center
+% #2 = first axis
+% #3 = second axis
+%  
+% Example:
+%
+% % Add a circle of radius 3cm around the origin
+% \pgfpathellipse{\pgforigin}{\pgfxy(2,0)}{\pgfxy(0,1)}
+%
+% % Draw a non-filled circle of radius 1cm around the point (1,1)
+% \pgfpathellipse{\pgfxy(1,1)}{\pgfxy(1,1)}{\pgfxy(-2,2)}
+% \pgfstroke
+
+\def\pgfpathellipse#1#2#3{%
+  \pgfpointtransformed{#1}% store center in xc/yc
+  \pgf@xc=\pgf@x%
+  \pgf@yc=\pgf@y%
+  \pgfpointtransformed{#2}%
+  \pgf@xa=\pgf@x% store first axis in xa/ya
+  \pgf@ya=\pgf@y%
+  \advance\pgf@xa by-\pgf@pt@x%
+  \advance\pgf@ya by-\pgf@pt@y%
+  \pgfpointtransformed{#3}%
+  \pgf@xb=\pgf@x% store second axis in xb/yb
+  \pgf@yb=\pgf@y%
+  \advance\pgf@xb by-\pgf@pt@x%
+  \advance\pgf@yb by-\pgf@pt@y%
+  {%
+    \advance\pgf@xa by\pgf@xc%
+    \advance\pgf@ya by\pgf@yc%
+    \pgfsyssoftpath@moveto{\the\pgf@xa}{\the\pgf@ya}%
+    \pgf@protocolsizes{\pgf@xa}{\pgf@ya}%
+  }%
+  \pgf@x=0.555\pgf@xb% first arc
+  \pgf@y=0.555\pgf@yb%
+  \advance\pgf@x by\pgf@xa%
+  \advance\pgf@y by\pgf@ya%
+  \advance\pgf@x by\pgf@xc%
+  \advance\pgf@y by\pgf@yc%
+  \edef\pgf@temp{{\the\pgf@x}{\the\pgf@y}}%
+  \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+  \pgf@x=0.555\pgf@xa%
+  \pgf@y=0.555\pgf@ya%
+  \advance\pgf@x by\pgf@xb%
+  \advance\pgf@y by\pgf@yb%
+  {%
+    \advance\pgf@x by\pgf@xc%
+    \advance\pgf@y by\pgf@yc%
+    \advance\pgf@xb by\pgf@xc%
+    \advance\pgf@yb by\pgf@yc%    
+    \expandafter\pgfsyssoftpath@curveto\pgf@temp{\the\pgf@x}{\the\pgf@y}{\the\pgf@xb}{\the\pgf@yb}%
+    \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+    \pgf@protocolsizes{\pgf@xb}{\pgf@yb}%
+  }%
+  \pgf@xa=-\pgf@xa% flip first axis
+  \pgf@ya=-\pgf@ya%
+  \pgf@x=0.555\pgf@xa% second arc
+  \pgf@y=0.555\pgf@ya%
+  \advance\pgf@x by\pgf@xb%
+  \advance\pgf@y by\pgf@yb%
+  \advance\pgf@x by\pgf@xc%
+  \advance\pgf@y by\pgf@yc%
+  \edef\pgf@temp{{\the\pgf@x}{\the\pgf@y}}%
+  \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+  \pgf@x=0.555\pgf@xb%
+  \pgf@y=0.555\pgf@yb%
+  \advance\pgf@x by\pgf@xa%
+  \advance\pgf@y by\pgf@ya%
+  {%
+    \advance\pgf@x by\pgf@xc%
+    \advance\pgf@y by\pgf@yc%
+    \advance\pgf@xa by\pgf@xc%
+    \advance\pgf@ya by\pgf@yc%    
+    \expandafter\pgfsyssoftpath@curveto\pgf@temp{\the\pgf@x}{\the\pgf@y}{\the\pgf@xa}{\the\pgf@ya}%  
+    \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+    \pgf@protocolsizes{\pgf@xa}{\pgf@ya}%
+  }%
+  \pgf@xb=-\pgf@xb% flip second axis
+  \pgf@yb=-\pgf@yb%
+  \pgf@x=0.555\pgf@xb% third arc
+  \pgf@y=0.555\pgf@yb%
+  \advance\pgf@x by\pgf@xa%
+  \advance\pgf@y by\pgf@ya%
+  \advance\pgf@x by\pgf@xc%
+  \advance\pgf@y by\pgf@yc%
+  \edef\pgf@temp{{\the\pgf@x}{\the\pgf@y}}%
+  \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+  \pgf@x=0.555\pgf@xa%
+  \pgf@y=0.555\pgf@ya%
+  \advance\pgf@x by\pgf@xb%
+  \advance\pgf@y by\pgf@yb%
+  {%
+    \advance\pgf@x by\pgf@xc%
+    \advance\pgf@y by\pgf@yc%
+    \advance\pgf@xb by\pgf@xc%
+    \advance\pgf@yb by\pgf@yc%    
+    \expandafter\pgfsyssoftpath@curveto\pgf@temp{\the\pgf@x}{\the\pgf@y}{\the\pgf@xb}{\the\pgf@yb}%  
+    \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+    \pgf@protocolsizes{\pgf@xb}{\pgf@yb}%
+  }%
+  \pgf@xa=-\pgf@xa% flip first axis once more
+  \pgf@ya=-\pgf@ya%
+  \pgf@x=0.555\pgf@xa% fourth arc
+  \pgf@y=0.555\pgf@ya%
+  \advance\pgf@x by\pgf@xb%
+  \advance\pgf@y by\pgf@yb%
+  \advance\pgf@x by\pgf@xc%
+  \advance\pgf@y by\pgf@yc%
+  \edef\pgf@temp{{\the\pgf@x}{\the\pgf@y}}%
+  \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+  \pgf@x=0.555\pgf@xb%
+  \pgf@y=0.555\pgf@yb%
+  \advance\pgf@x by\pgf@xa%
+  \advance\pgf@y by\pgf@ya%
+  {%
+    \advance\pgf@x by\pgf@xc%
+    \advance\pgf@y by\pgf@yc%
+    \advance\pgf@xa by\pgf@xc%
+    \advance\pgf@ya by\pgf@yc%    
+    \expandafter\pgfsyssoftpath@curveto\pgf@temp{\the\pgf@x}{\the\pgf@y}{\the\pgf@xa}{\the\pgf@ya}%
+    \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+    \pgf@protocolsizes{\pgf@xa}{\pgf@ya}%
+  }%
+  \pgfsyssoftpath@closepath%
+  \pgfsyssoftpath@moveto{\the\pgf@xc}{\the\pgf@yc}%
+}
+
+
+
+% Append a circle to the current path
+%
+% #1 = center
+% #2 = radius
+%  
+% Example:
+%
+% % Append a circle of radius 3cm around the the point (1,1)
+% \pgfpathcircle{\pgxy(1,1)}{3cm}
+
+\def\pgfpathcircle#1#2{\pgfpathellipse{#1}{\pgfpoint{#2}{0pt}}{\pgfpoint{0pt}{#2}}}
+
+
+
+% Append a rectangle to the current path
+%
+% #1 = lower left corner point of rectangle
+% #2 = width and height vector
+%  
+% Example:
+%
+% % A rectangle with corners (2,2) and (3,3)
+% \pgfpathrectangle{\pgfpointxy{2}{2}}{\pgfpointxy{1}{1}}
+
+\def\pgfpathrectangle{%
+  \let\pgfrect@next=\pgf@specialrect%
+  \ifpgf@pt@identity%
+    \ifpgf@arccorners%
+    \else%
+      \let\pgfrect@next=\pgf@normalrect%
+    \fi%
+  \fi%
+  \pgfrect@next%
+}
+
+\def\pgf@normalrect#1#2{%
+  \pgf@process{#2}%
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \pgfpointtransformed{#1}%
+  \pgfsyssoftpath@rect{\the\pgf@x}{\the\pgf@y}{\the\pgf@xa}{\the\pgf@ya}%
+  \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+  \advance\pgf@x by\pgf@xa\relax%
+  \advance\pgf@y by\pgf@ya\relax%
+  \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+}
+
+\def\pgf@specialrect#1#2{%
+  \pgf@process{#2}%
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \pgf@process{#1}%
+  \pgf@xb=\pgf@x%
+  \pgf@yb=\pgf@y%
+  \advance\pgf@xa by\pgf@xb%
+  \advance\pgf@ya by\pgf@yb%
+  \pgfpathmoveto{\pgfpoint{\pgf@xa}{\pgf@ya}}%
+  \pgfpathlineto{\pgfpoint{\pgf@xb}{\pgf@ya}}%
+  \pgfpathlineto{\pgfpoint{\pgf@xb}{\pgf@yb}}%
+  \pgfpathlineto{\pgfpoint{\pgf@xa}{\pgf@yb}}%
+  \pgfpathclose%
+  \pgfpathmoveto{\pgfpoint{\pgf@xb}{\pgf@xb}}%
+}
+
+% Append a rectangle to the current path
+%
+% #1 = one corner of the rectangle
+% #2 = opposite corner of the rectangle
+%  
+% Example:
+%
+% % A rectangle with corners (2,2) and (3,3)
+% \pgfpathrectanglecorners{\pgfpointxy{2}{2}}{\pgfpointxy{3}{3}}
+
+\def\pgfpathrectanglecorners#1#2{%
+  \pgf@process{#2}%
+  \pgf@xc=\pgf@x%
+  \pgf@yc=\pgf@y%
+  \pgf@process{#1}%
+  \advance\pgf@xc by-\pgf@x%
+  \advance\pgf@yc by-\pgf@y%
+  \pgfpathrectangle{#1}{\pgfpoint{\pgf@xc}{\pgf@yc}}%
+}
+
+
+% Append a grid to the current path.
+%
+% #1 = lower left point of grid
+% #2 = upper right point of grid
+%  
+% Options: 
+%  
+% stepx = x-step dimension (default 1cm)
+% stepy = y-step dimension (default 1cm)
+% step  = dimesion vector
+%  
+% Example:
+%
+% \pgfsetlinewidth{0.8pt}
+% \pgfgrid{\pgfxy(0,0)}{\pgfxy(3,2)}
+% \pgfsetlinewidth{0.4pt}
+% \pgfgrid[stepx=1cm,stepy=1cm]{\pgfxy(0,0)}{\pgfxy(3,2)}
+
+\define@key{pgfbase}{stepx}{\setlength{\pgf@x}{#1}\relax}
+\define@key{pgfbase}{stepy}{\setlength{\pgf@y}{#1}\relax}
+\define@key{pgfbase}{step}{\pgf@process{#1}}
+
+\def\pgfpathgrid{\@ifnextchar[{\pgf@pathgrid}{\pgf@pathgrid[]}}
+\def\pgf@pathgrid[#1]#2#3{%
+  \setkeys{pgfbase}{stepx=1cm,stepy=1cm}%
+  \setkeys{pgfbase}{#1}%
+  \pgf@xc=\pgf@x%
+  \pgf@yc=\pgf@y%
+  \pgf@process{#3}%
+  \pgf@xb=\pgf@x%
+  \pgf@yb=\pgf@y%
+  \pgf@process{#2}%
+  \pgf@xa=\pgf@x\relax%
+  \pgf@ya=\pgf@y\relax%
+  {%
+    % compute bounding box
+    % first corner
+    \pgf@x=\pgf@xb%
+    \pgf@y=\pgf@yb%
+    \pgf@pos@transform{\pgf@x}{\pgf@y}%
+    \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+    % second corner
+    \pgf@x=\pgf@xb%
+    \pgf@y=\pgf@ya%
+    \pgf@pos@transform{\pgf@x}{\pgf@y}%
+    \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+    % third corner
+    \pgf@x=\pgf@xa%
+    \pgf@y=\pgf@yb%
+    \pgf@pos@transform{\pgf@x}{\pgf@y}%
+    \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+    % fourth corner
+    \pgf@x=\pgf@xa%
+    \pgf@y=\pgf@ya%
+    \pgf@pos@transform{\pgf@x}{\pgf@y}%
+    \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+  }%
+  \c@pgf@counta=\pgf@y\relax%
+  \c@pgf@countb=\pgf@yc\relax%
+  \divide\c@pgf@counta by\c@pgf@countb\relax%
+  \pgf@y=\c@pgf@counta\pgf@yc\relax%
+  \ifdim\pgf@y<\pgf@ya%
+    \advance\pgf@y by\pgf@yc%
+  \fi%
+  \loop% horizontal lines
+    {%
+      \pgf@xa=\pgf@x%
+      \pgf@ya=\pgf@y%
+      \pgf@pos@transform{\pgf@xa}{\pgf@ya}
+      \pgfsyssoftpath@moveto{\the\pgf@xa}{\the\pgf@ya}%
+      \pgf@xa=\pgf@xb%
+      \pgf@ya=\pgf@y%
+      \pgf@pos@transform{\pgf@xa}{\pgf@ya}
+      \pgfsyssoftpath@lineto{\the\pgf@xa}{\the\pgf@ya}%
+    }%
+    \advance\pgf@y by\pgf@yc%
+  \ifdim\pgf@y<\pgf@yb%
+  \repeat%
+  \advance\pgf@y by-0.01pt\relax%
+  \ifdim\pgf@y<\pgf@yb%
+    {%
+      \pgf@xa=\pgf@x%
+      \pgf@ya=\pgf@y%
+      \pgf@pos@transform{\pgf@xa}{\pgf@ya}
+      \pgfsyssoftpath@moveto{\the\pgf@xa}{\the\pgf@ya}%
+      \pgf@xa=\pgf@xb%
+      \pgf@ya=\pgf@y%
+      \pgf@pos@transform{\pgf@xa}{\pgf@ya}
+      \pgfsyssoftpath@lineto{\the\pgf@xa}{\the\pgf@ya}%
+    }%
+  \fi%
+  \c@pgf@counta=\pgf@x\relax%
+  \c@pgf@countb=\pgf@xc\relax%
+  \divide\c@pgf@counta by\c@pgf@countb\relax%
+  \pgf@x=\c@pgf@counta\pgf@xc\relax%
+  \ifdim\pgf@x<\pgf@xa%
+    \advance\pgf@x by\pgf@xc%
+  \fi%
+  \loop% vertical lines
+    {%
+      \pgf@xc=\pgf@x%
+      \pgf@yc=\pgf@ya%
+      \pgf@pos@transform{\pgf@xc}{\pgf@yc}
+      \pgfsyssoftpath@moveto{\the\pgf@xc}{\the\pgf@yc}%
+      \pgf@xc=\pgf@x%
+      \pgf@yc=\pgf@yb%
+      \pgf@pos@transform{\pgf@xc}{\pgf@yc}
+      \pgfsyssoftpath@lineto{\the\pgf@xc}{\the\pgf@yc}%
+    }%
+    \advance\pgf@x by\pgf@xc%
+  \ifdim\pgf@x<\pgf@xb%
+  \repeat%
+  \advance\pgf@x by-0.01pt\relax%
+  \ifdim\pgf@x<\pgf@xb%
+    {%
+      \pgf@xc=\pgf@x%
+      \pgf@yc=\pgf@ya%
+      \pgf@pos@transform{\pgf@xc}{\pgf@yc}
+      \pgfsyssoftpath@moveto{\the\pgf@xc}{\the\pgf@yc}%
+      \pgf@xc=\pgf@x%
+      \pgf@yc=\pgf@yb%
+      \pgf@pos@transform{\pgf@xc}{\pgf@yc}
+      \pgfsyssoftpath@lineto{\the\pgf@xc}{\the\pgf@yc}%
+    }%
+  \fi%
+}
+
+
+
+% Append two half-parabolas to the path
+%
+% #1 = bend (relative to current point)
+% #2 = end point (relative to bend point)
+%  
+% Description:
+%  
+% This command appends a half-parabola that starts at the current point
+% and has its bend at #1+current point. Then, a second parabola is
+% appended that starts at #1+current point, where it also has its
+% minimum/maximum, and ends at #1+current point+#2, which becomes the
+% new current point. 
+%  
+% By setting #2 = (0,0) you draw only a half parabola that goes from the
+% current point to the bend; by setting #1 = (0,0)
+% you draw a half parabola that going to current point + #2 and has its
+% bend at the current point. 
+%  
+% Examples:
+%
+% % Half-parabola going ``up and right''
+% \pgfpathmoveto{\pgfpointorigin}
+% \pgfpathparabola{\pgfpointorigin}{\pgfpoint{2cm}{4cm}}
+%
+% % Half-parabola going ``down and right''
+% \pgfpathmoveto{\pgfpointorigin}
+% \pgfpathparabola{\pgfpoint{-2cm}{4cm}}}{\pgfpointorigin}
+%
+% % Full parabola
+% \pgfpathmoveto{\pgfpointorigin}
+% \pgfpathparabola{\pgfpoint{-2cm}{4cm}}{\pgfpoint{2cm}{4cm}}
+
+\def\pgfpathparabola#1#2{%
+  {%
+    \pgf@process{#2}% untransformed
+    \pgf@xb=\pgf@x%
+    \pgf@yb=\pgf@y%
+    \pgf@process{#1}% untransformed
+    \pgf@xc=\pgf@x%
+    \pgf@yc=\pgf@y%
+    \@tempswatrue%
+    \ifdim\pgf@xb=0pt\relax%
+      \ifdim\pgf@yb=0pt\relax%
+        \@tempswafalse%
+      \fi%
+    \fi%  
+    {%
+      \if@tempswa%
+        \pgf@arccornersfalse
+      \else%
+      \fi%
+      \@tempswatrue%
+      \ifdim\pgf@xc=0pt\relax%
+        \ifdim\pgf@yc=0pt\relax%
+          \@tempswafalse%
+        \fi%
+      \fi%
+      \if@tempswa  
+      {%
+        \pgf@pt@x=\pgf@path@lastx%
+        \pgf@pt@y=\pgf@path@lasty%
+        \pgfpathcurveto%
+          {\pgfpoint{.1125\pgf@xc}{.225\pgf@yc}}% found by trial and error
+          {\pgfpoint{.5\pgf@xc}{\pgf@yc}}% found by trial and error
+          {\pgfpoint{\pgf@xc}{\pgf@yc}}%
+      }%
+      \fi%
+    }%
+    \if@tempswa%
+      \pgf@xc=\pgf@xb%
+      \pgf@yc=\pgf@yb%
+      {%
+        \pgf@pt@x=\pgf@path@lastx%
+        \pgf@pt@y=\pgf@path@lasty%
+        \pgfpathcurveto%
+          {\pgfpoint{.5\pgf@xc}{0\pgf@yc}}% found by trial and error
+          {\pgfpoint{.8875\pgf@xc}{.775\pgf@yc}}% found by trial and error
+          {\pgfpoint{\pgf@xc}{\pgf@yc}}%
+      }%
+    \fi%
+  }%  
+}  
+
+
+
+
+% Append a sine curve between 0 and \pi/2 to the path.
+%
+% #1 = vector, describing the width and height of the curve
+%  
+% Description:
+%  
+% This command appends a sine curve in the interval 0 and \pi/2 to the
+% current path. The sine curve ends at currentpoint+#1.
+%  
+% Examples:
+%
+% % One complete sine in the interval [0,\pi]
+% \pgfpathmoveto{\pgfpointorigin}
+% \pgfpathsine{\pgfpoint{1.57cm}{1cm}}
+% \pgfpathcosine{\pgfpoint{3.141cm}{0cm}}
+
+\def\pgfpathsine#1{%
+  {%
+    \pgf@process{#1}% untransformed
+    \pgf@xc=\pgf@x%
+    \pgf@yc=\pgf@y%
+    \pgf@pt@x=\pgf@path@lastx% evil trickery to transform to the last point
+    \pgf@pt@y=\pgf@path@lasty%
+    \pgfpathcurveto%
+      {\pgfpoint{.31830988618\pgf@xc}{.5\pgf@yc}}% found by trial and error
+      {\pgfpoint{.63502822294\pgf@xc}{\pgf@yc}}% found by trial and error
+      {\pgfpoint{\pgf@xc}{\pgf@yc}}%
+  }%  
+}  
+
+% Append a cosine curve between 0 and \pi/2 to the path.
+%
+% #1 = vector, describing the width and height of the curve
+%  
+% Examples:
+%
+% % One complete sine in the interval [0,\pi]
+% \pgfpathmoveto{\pgfpointorigin}
+% \pgfpathsine{\pgfpoint{1.57cm}{1cm}}
+% \pgfpathcosine{\pgfpoint{3.141cm}{0cm}}
+
+\def\pgfpathcosine#1{%
+  {%
+    \pgf@process{#1}% untransformed
+    \pgf@xc=\pgf@x%
+    \pgf@yc=\pgf@y%
+    \pgf@pt@x=\pgf@path@lastx% evil trickery to transform to the last point
+    \pgf@pt@y=\pgf@path@lasty%
+    \pgfpathcurveto%
+      {\pgfpoint{.36497177706\pgf@xc}{0pt}}% found by trial and error
+      {\pgfpoint{.68169011382\pgf@xc}{.5\pgf@yc}}% found by trial and error
+      {\pgfpoint{\pgf@xc}{\pgf@yc}}%
+  }%  
+}  
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepathprocessing.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepathprocessing.code.tex
new file mode 100644
index 00000000000..db2a9d7c068
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepathprocessing.code.tex
@@ -0,0 +1,502 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfcorepathprocessing.code.tex,v 1.2 2005/10/03 15:52:27 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+% Cleanup path
+%
+% #1 = a macro name that stores a path
+%
+% Description:
+%
+% This command will remove superfluous parts from a path. Movetos with
+% a moveto following are removed.
+%
+% Example:
+%
+% \pgfsyssoftpath@moveto{0}{0}
+% \pgfsyssoftpath@moveto{10}{10}
+% \pgfsyssoftpath@lineto{0}{0}
+% \pgfsyssoftpath@getcurrentpath\mypath
+% \pgfprocesspathcleanup\mypath
+
+\def\pgfprocesspathcleanup#1{%
+  {%
+    \let\pgf@newpath=\@empty%
+    \expandafter\pgf@cleanupprocessor#1\pgf@stop%
+  }%
+  \let#1=\pgf@newpath%
+}
+
+\def\pgf@cleanupprocessor#1{%
+  \ifx#1\pgf@stop%
+    \let\next=\@gobble% ok, done
+  \else%
+    \ifx#1\pgfsyssoftpath@movetotoken%
+      \let\next=\pgf@cleanupmoveto%
+    \else%
+      \let\next=\pgf@cleanupredo%
+    \fi%
+  \fi%
+  \next#1%
+}
+
+\def\pgf@cleanupredo#1#2#3{%
+  \g@addto@macro\pgf@newpath{#1{#2}{#3}}%
+  \pgf@cleanupprocessor%
+}
+
+\def\pgf@cleanupmoveto#1#2#3#4{%
+  \ifx#4\pgfsyssoftpath@movetotoken%
+    % Ok, skip
+  \else%
+    \g@addto@macro\pgf@newpath{#1{#2}{#3}}%
+  \fi%
+  \pgf@cleanupprocessor#4%
+}
+
+
+
+% Extract start and end vectors of a path
+%
+% #1 = a macro that stores a path
+%
+% Description:
+%
+% This command will extract the first and second coordinate on the
+% path as well as the last and second-last. These coordinates will be
+% put in the pgfpoint-macros \pgfpointfirstonpath,
+% \pgfpointsecondonpath, \pgfpointsecondlastonpath, and
+% \pgfpointlastonpath. If the path is empty, these macros are set to
+% \pgfpointorigin. 
+%
+% Example:
+%
+% \pgfsyssoftpath@moveto{0}{0}
+% \pgfsyssoftpath@lineto{10}{10}
+% \pgfsyssoftpath@curveto{20}{20}{30}{30}{40}{40}
+% \pgfsyssoftpath@getcurrentpath\mypath
+% \pgfprocesspathextractpoints\mypath
+% 
+% % \pgfpointfirstonpath is now \pgfpoint{0}{0}
+% % \pgfpointsecondonpath is now \pgfpoint{10bp}{10bp}
+% % \pgfpointsecondlastonpath is now \pgfpoint{30bp}{30bp}
+% % \pgfpointlastonpath is now \pgfpoint{40bp}{40bp}
+
+\def\pgfprocesspathextractpoints#1{%
+  \ifx#1\@empty%
+    \let\pgfpointfirstonpath=\pgfpointorigin%
+    \let\pgfpointsecondonpath=\pgfpointorigin%
+    \let\pgfpointsecondlastonpath=\pgfpointorigin%
+    \let\pgfpointlastonpath=\pgfpointorigin%
+  \else%
+    \expandafter\pgf@extractprocessorfirst#1\pgf@stop%
+  \fi%
+}
+
+\def\pgf@extractprocessorfirst#1#2#3#4{%
+  \def\pgfpointfirstonpath{\pgfpoint{#2}{#3}}%
+  \ifx#4\pgf@stop%
+    % pretty short path...
+    \let\pgfpointsecondonpath=\pgfpointfirstonpath%
+    \let\pgfpointsecondlastonpath=\pgfpointfirstonpath%
+    \let\pgfpointlastonpath=\pgfpointfirstonpath%
+    \let\next=\@gobble%
+  \else
+    \let\next=\pgf@extractprocessorsecond%
+  \fi%
+  \next#4%
+}
+
+\def\pgf@extractprocessorsecond#1{%
+  \ifx#1\pgfsyssoftpath@movetotoken%
+    % Reset things...
+    \let\pgf@next=\pgf@extractprocessorfirst%
+  \else%
+    \let\pgf@next=\pgf@@extractprocessorsecond%
+  \fi%
+  \pgf@next#1%
+}
+\def\pgf@@extractprocessorsecond#1#2#3#4{%
+  \def\pgfpointsecondonpath{\pgfpoint{#2}{#3}}%
+  \let\pgfpointsecondlastonpath=\pgfpointfirstonpath%
+  \let\pgfpointlastonpath=\pgfpointsecondonpath%
+  \ifx#4\pgf@stop%
+    % short path...
+    \let\next=\@gobble%
+  \else
+    \let\next=\pgf@extractprocessorother%
+  \fi%
+  \next#4%
+}
+
+\def\pgf@extractprocessorother#1{%
+  \ifx#1\pgfsyssoftpath@movetotoken%
+    % Reset things...
+    \let\pgf@next=\pgf@extractprocessorfirst%
+  \else%
+    \let\pgf@next=\pgf@@extractprocessorother%
+  \fi%
+  \pgf@next#1%
+}
+\def\pgf@@extractprocessorother#1#2#3#4{%
+  \let\pgfpointsecondlastonpath=\pgfpointlastonpath%
+  \def\pgfpointlastonpath{\pgfpoint{#2}{#3}}%
+  \ifx#4\pgf@stop%
+    % end!
+    \let\next=\@gobble%
+  \fi%
+  \next#4%
+}
+
+
+
+% Check for closepath and rectangles
+%
+% #1 = a macro that stores a path
+% #2 = command to be executed when a closepath or a rectangle is encountered
+%
+% Example:
+%
+% \pgfsyssoftpath@moveto{0}{0}
+% \pgfsyssoftpath@lineto{10}{10}
+% \pgfsyssoftpath@curveto{20}{20}{30}{30}{40}{40}
+% \pgfsyssoftpath@getcurrentpath\mypath
+% \pgfprocesscheckclosed{\mypath}{\pgf@drawarrowsfalse}
+
+\def\pgfprocesscheckclosed#1#2{%
+  {%
+    \global\let\pgf@proc@todo=\relax%
+    \let\pgfsyssoftpath@movetotoken=\@gobbletwo%
+    \let\pgfsyssoftpath@linetotoken=\@gobbletwo%
+    \let\pgfsyssoftpath@curvetosupportatoken=\@gobbletwo%
+    \let\pgfsyssoftpath@curvetosupportbtoken=\@gobbletwo%
+    \let\pgfsyssoftpath@curvetotoken=\@gobbletwo%
+    \def\pgfsyssoftpath@rectcornertoken{\gdef\pgf@proc@todo{#2}\@gobbletwo}%
+    \def\pgfsyssoftpath@rectsizetoken{\gdef\pgf@proc@todo{#2}\@gobbletwo}%
+    \def\pgfsyssoftpath@closepathtoken{\gdef\pgf@proc@todo{#2}\@gobbletwo}%
+    #1%
+  }%
+  \pgf@proc@todo%
+}
+
+  
+% Resolve specialround
+%
+% #1 = a macro that stores a path
+% #2 = a macro that stores the new path
+%
+% Description:
+%
+% Resolves all specialround tokens. When such a token is encountered,
+% the objective is to replace the next corner by a rounded corner. 
+%
+
+\def\pgfprocessround#1#2{%
+  % first, check whether #1 contains \pgfsyssoftpath@specialroundtoken.
+  % if not, do quick assignment!
+  \expandafter\pgf@processroundcheck\expandafter#1\expandafter#2#1\pgfsyssoftpath@specialroundtoken\pgf@stop%
+}
+
+\def\pgf@processroundcheck#1#2#3\pgfsyssoftpath@specialroundtoken#4\pgf@stop{%
+  \def\pgf@test{#4}%
+  \ifx\pgf@test\@empty%
+    % ok, nothing to be done!
+    \let#2=#1%
+  \else%
+    % very well...
+    \pgf@@processround#1#2%
+  \fi%
+}
+
+
+\def\pgf@@processround#1#2{%  
+  \let\pgfprocess@newpath\@empty%
+  \let\pgfprocess@moveto\@empty%
+  \let\pgfprocess@firstto\@empty%
+  \let\pgfprocess@segment\@empty%
+  \pgf@xa=0pt%
+  \pgf@ya=0pt%
+  \expandafter\pgfprocess@round#1\pgf@stop{0pt}{0pt}%
+  \expandafter\g@addto@macro\expandafter\pgfprocess@newpath\expandafter{\pgfprocess@moveto}%
+  \expandafter\g@addto@macro\expandafter\pgfprocess@newpath\expandafter{\pgfprocess@segment}%
+  \let#2=\pgfprocess@newpath%
+}
+
+\def\pgfprocess@round#1#2#3{%
+  \ifx#1\pgf@stop%
+    \let\next=\relax%
+  \else%
+    \ifx#1\pgfsyssoftpath@specialroundtoken%
+      \def\pgfprocess@savex{#2}%
+      \def\pgfprocess@savey{#3}%
+      \let\next=\pgfprocess@specialround%
+      \ifdim#2=0pt%
+        \ifdim#3=0pt%
+          \let\next=\pgfprocess@round% skip!
+        \fi%
+      \fi%
+    \else%
+      \ifx\pgfprocess@firstto\@empty%
+        \def\pgfprocess@firstto{{#2}{#3}}%
+      \fi%
+      \pgf@xa=#2%
+      \pgf@ya=#3%
+      \ifx#1\pgfsyssoftpath@movetotoken%
+        % ok, move old segment to newpath
+        \expandafter\g@addto@macro\expandafter\pgfprocess@newpath\expandafter{\pgfprocess@moveto}%
+        \expandafter\g@addto@macro\expandafter\pgfprocess@newpath\expandafter{\pgfprocess@segment}%
+        \def\pgfprocess@moveto{#1{#2}{#3}}%
+        \let\pgfprocess@firstto=\@empty%
+        \let\pgfprocess@segment=\@empty%
+      \else%
+        \g@addto@macro\pgfprocess@segment{#1{#2}{#3}}%
+      \fi%
+      \let\next=\pgfprocess@round%
+    \fi%
+  \fi%
+  \next%  
+}
+
+\def\pgfprocess@specialround#1#2#3{%
+  \ifx\pgfprocess@firstto\@empty%
+    \def\pgfprocess@firstto{{#2}{#3}}%
+  \fi%
+  \let\next=\pgfprocess@round% default: do nothing
+  \ifx#1\pgfsyssoftpath@linetotoken%
+    % Ok, round a lineto
+    \let\next=\pgfprocess@specialroundcope%
+  \else%
+    \ifx#1\pgfsyssoftpath@curvetosupportatoken%
+      % Ok, round a curveto. 
+      \let\next=\pgfprocess@specialroundcurveto%
+    \else%
+      \ifx#1\pgfsyssoftpath@closepathtoken%
+        % Ok, round a closepath (this is tricky...)
+        \let\next=\pgfprocess@specialroundclose%
+      \fi%
+    \fi%
+  \fi%
+  \next#1{#2}{#3}%
+}%
+
+\def\pgfprocess@specialroundcope#1#2#3#4#5#6{%
+  \let\next=\pgfprocess@round% do nothing by default
+  \let\pgfprocess@continueafterrounding=\pgfprocess@round%
+  \ifx#4\pgfsyssoftpath@linetotoken%
+    % ok, let's get kicking...
+    \pgf@xc=#5%
+    \pgf@yc=#6%
+    \let\next=\pgfprocess@@specialround%
+  \else%
+    \ifx#4\pgfsyssoftpath@curvetosupportatoken%  
+      \pgf@xc=#5%
+      \pgf@yc=#6%
+      \let\next=\pgfprocess@@specialround%
+    \else%
+      \ifx#4\pgfsyssoftpath@closepathtoken%  
+        \pgf@xc=#5%
+        \pgf@yc=#6%
+        \let\next=\pgfprocess@@specialround%
+      \else
+        \ifx#4\pgfsyssoftpath@specialroundtoken%  
+          \let\next=\pgfprocess@@findrightcoordinates%
+        \fi%
+      \fi%
+    \fi%
+  \fi%
+  \next#1{#2}{#3}#4{#5}{#6}%
+}
+
+\def\pgfprocess@@findrightcoordinates#1#2#3#4#5#6#7#8#9{%
+  \pgf@xc=#8%
+  \pgf@yc=#9%
+  \pgfprocess@@specialround#1{#2}{#3}#4{#5}{#6}#7{#8}{#9}%
+}
+
+\def\pgfprocess@@specialround#1#2#3{%
+  \g@addto@macro\pgfprocess@segment{#1}%
+  % calculate start coordinate of the curve
+  \pgf@xb=#2%
+  \pgf@yb=#3%
+  %
+  \edef\pgf@marshal%
+  {\noexpand\pgfpointlineatdistance{\pgfprocess@savex}%
+    {\noexpand\pgfpoint{\the\pgf@xb}{\the\pgf@yb}}%
+    {\noexpand\pgfpoint{\the\pgf@xa}{\the\pgf@ya}}}%
+  \pgf@process{\pgf@marshal}%
+  \pgf@xa=\pgf@x% save start point of added curve
+  \pgf@ya=\pgf@y%
+  \edef\pgfprocess@addition{{\the\pgf@x}{\the\pgf@y}}%
+  \expandafter\g@addto@macro\expandafter\pgfprocess@segment\expandafter{\pgfprocess@addition}%
+  %
+  % now add curve
+  %
+  \edef\pgf@marshal%
+  {\noexpand\pgfpointlineatdistance{\pgfprocess@savey}%
+    {\noexpand\pgfpoint{\the\pgf@xb}{\the\pgf@yb}}%
+    {\noexpand\pgfpoint{\the\pgf@xc}{\the\pgf@yc}}}%
+  \pgf@process{\pgf@marshal}%
+  \pgf@xc=\pgf@x% save end point of added curve
+  \pgf@yc=\pgf@y%
+  % calculate first support:
+  {%
+    \pgf@x=\pgf@xb%
+    \pgf@y=\pgf@yb%
+    \advance\pgf@x by-\pgf@xa%
+    \advance\pgf@y by-\pgf@ya%
+    \advance\pgf@xa by 0.555\pgf@x%
+    \advance\pgf@ya by 0.555\pgf@y%
+    \edef\pgfprocess@addition{\noexpand\pgfsyssoftpath@curvetosupportatoken{\the\pgf@xa}{\the\pgf@ya}}%
+    \expandafter\g@addto@macro\expandafter\pgfprocess@segment\expandafter{\pgfprocess@addition}%
+  }%
+  % calculate second support:
+  {%
+    \pgf@x=\pgf@xb%
+    \pgf@y=\pgf@yb%
+    \advance\pgf@x by-\pgf@xc%
+    \advance\pgf@y by-\pgf@yc%
+    \advance\pgf@xc by 0.555\pgf@x%
+    \advance\pgf@yc by 0.555\pgf@y%
+    \edef\pgfprocess@addition{\noexpand\pgfsyssoftpath@curvetosupportbtoken{\the\pgf@xc}{\the\pgf@yc}}%
+    \expandafter\g@addto@macro\expandafter\pgfprocess@segment\expandafter{\pgfprocess@addition}%
+  }%
+  % add end:
+  \edef\pgfprocess@addition{\noexpand\pgfsyssoftpath@curvetotoken{\the\pgf@xc}{\the\pgf@yc}}%
+  \expandafter\g@addto@macro\expandafter\pgfprocess@segment\expandafter{\pgfprocess@addition}%
+  %
+  % continue!
+  %
+  \pgf@xa=#2%
+  \pgf@ya=#3%
+  \pgfprocess@continueafterrounding%
+}
+
+\def\pgfprocess@specialroundcurveto#1#2#3#4#5#6{%
+  \g@addto@macro\pgfprocess@segment{#1{#2}{#3}#4{#5}{#6}}% supports
+  \pgf@xa=#5%
+  \pgf@ya=#6%
+  \pgfprocess@specialroundcope}
+
+\def\pgfprocess@specialroundclose{%
+  \let\next=\pgfprocess@round%
+  \ifx\pgfprocess@moveto\@empty%
+  \else%
+    \ifx\pgfprocess@firstto\@empty%
+    \else%
+      \expandafter\pgfprocess@@specialclosetarget\pgfprocess@firstto%
+      \let\pgfprocess@continueafterrounding=\pgfprocess@cleanupafterclose%
+      \edef\next{%
+        \noexpand\pgfprocess@@specialround%
+        \expandafter\expandafter\expandafter\noexpand\expandafter\pgfprocess@@specialclosemoveto\pgfprocess@moveto%
+      }%
+    \fi%
+  \fi%  
+  \next%
+}
+
+\def\pgfprocess@@specialclosetarget#1#2{%
+  \pgf@xc=#1%
+  \pgf@yc=#2%
+}
+
+\def\pgfprocess@@specialclosemoveto#1#2#3{%
+  \pgfsyssoftpath@linetotoken{#2}{#3}%
+}
+
+
+\def\pgfprocess@cleanupafterclose#1#2#3{%
+  \edef\pgfprocess@moveto{\noexpand\pgfsyssoftpath@movetotoken{\the\pgf@xc}{\the\pgf@yc}}%
+  \edef\pgf@marshal{\noexpand\pgfprocess@round\noexpand\pgfsyssoftpath@closepathtoken{\the\pgf@xc}{\the\pgf@yc}}%
+  \pgf@marshal%  
+}
+
+
+% Replace start and end coordinates of a path
+%
+% #1 = new start coordinate
+% #2 = new end coordinate
+%
+% Description:
+%
+% This command will replace the first and last coordinates on a path
+% by the given coordinates.
+%
+% Example:
+%
+% \pgfsyssoftpath@moveto{0}{0}
+% \pgfsyssoftpath@lineto{10}{10}
+% \pgfsyssoftpath@curveto{20}{20}{30}{10}{40}{0}
+% \pgfsyssoftpath@getcurrentpath\mypath
+% \pgfsetlinewidth{2pt}
+% \pgfusepath{stroke}
+% \pgfprocesspathextractpoints{\mypath}
+% \pgfprocesspathreplacestartandend{\mypath}
+%   {\pgfpointlineatdistance{2pt}{\pgfpointfirstonpath}{\pgfpointsecondonpath}}%
+%   {\pgfpointlineatdistance{2pt}{\pgfpointlastonpath}{\pgfpointsecondlastonpath}}%
+% \pgfsyssoftpath@setcurrentpath\mypath
+% \pgfsetlinewidth{1pt}
+% \color{red}
+% \pgfusepath{stroke}
+
+\def\pgfprocesspathreplacestartandend#1#2#3{%
+  {%
+    \let\pgf@newpath=\@empty%
+    \let\pgf@prepath=\@empty%
+    \ifx#1\@empty%
+    \else%
+      \pgf@process{#3}%
+      \pgf@xa=\pgf@x%
+      \pgf@ya=\pgf@y%
+      \pgf@process{#2}%
+      \expandafter\pgf@replaceprocessfirst#1\pgf@stop%
+    \fi%
+    \expandafter\expandafter\expandafter\def
+    \expandafter\expandafter\expandafter\pgf@newpath
+    \expandafter\expandafter\expandafter{\expandafter\pgf@prepath\pgf@newpath}%
+    \global\let#1=\pgf@newpath%
+  }%
+}
+
+\def\pgf@replaceprocessfirst#1#2#3#4{%
+  \def\pgf@temppath{#1{#2}{#3}}%
+  \edef\pgf@newpath{\noexpand#1{\the\pgf@x}{\the\pgf@y}}%
+  \ifx#4\pgf@stop%
+    \let\next=\@gobble%
+  \else%
+    \let\next=\pgf@replaceprocessother%
+  \fi%
+  \next#4%
+}
+
+\def\pgf@replaceprocessother#1{%
+  \ifx#1\pgfsyssoftpath@movetotoken%
+    % Arggghh! Must reset everything!
+    \expandafter\expandafter\expandafter\def
+    \expandafter\expandafter\expandafter\pgf@prepath
+    \expandafter\expandafter\expandafter{\expandafter\pgf@prepath\pgf@temppath}%
+    % Redo first.
+    \let\pgf@next=\pgf@replaceprocessfirst%
+  \else%
+    \let\pgf@next=\pgf@@replaceprocessother%
+  \fi%
+  \pgf@next#1%
+}
+\def\pgf@@replaceprocessother#1#2#3#4{%
+  \ifx#4\pgf@stop%
+    \edef\pgf@newpathaddition{{\noexpand#1{\the\pgf@xa}{\the\pgf@ya}}}%
+    \expandafter\g@addto@macro\expandafter\pgf@newpath\pgf@newpathaddition%
+    \let\next=\@gobble%
+  \else%
+    \g@addto@macro\pgf@temppath{#1{#2}{#3}}%
+    \g@addto@macro\pgf@newpath{#1{#2}{#3}}%
+    \let\next=\pgf@replaceprocessother%
+  \fi%
+  \next#4%
+}  
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepathusage.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepathusage.code.tex
new file mode 100644
index 00000000000..38bbdf07bba
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepathusage.code.tex
@@ -0,0 +1,209 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfcorepathusage.code.tex,v 1.2 2005/07/17 22:34:19 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+% Stroke/fill/clip/etc. the current path. Depending on the options,
+% the current path will be stroked/filled/clipped/etc. If no options
+% are given, the path is stroked. If multiple options are given, all
+% of them are performed (in a sensible order).
+%
+% #1 = action(s) to be applied to the current path. Valid actions are: 
+%      stroke -  strokes the path. If no options are given, this is the
+%                default. 
+%      draw -    same as stroke.
+%      fill -    fills the path.
+%      clip -    clip the path.
+%      discard - Discards the path. Same effect as having an empty
+%                options list.
+%
+% Example:
+%
+% % Draws an edge.
+% \pgfpathmoveto{\pgfxy(0,0)}
+% \pgfpathlineto{\pgfxy(0,1)}
+% \pgfpathlineto{\pgfxy(1,0)}
+% \pgfusepath{stroke}
+
+\define@key{pgfup}{stroke}[]{\def\pgf@up@stroke{stroke}}
+\define@key{pgfup}{draw}[]{\def\pgf@up@stroke{stroke}}
+\define@key{pgfup}{fill}[]{\def\pgf@up@fill{fill}}
+\define@key{pgfup}{clip}[]{\def\pgf@up@clip{clip}}
+\define@key{pgfup}{discard}[]{}
+\define@key{pgfup}{use as bounding box}[]{\def\pgf@up@bb{\pgf@relevantforpicturesizefalse}}
+
+\def\pgfusepath#1{%
+  \let\pgf@up@stroke\@empty%
+  \let\pgf@up@fill\@empty%
+  \let\pgf@up@clip\@empty%
+  \let\pgf@up@discard\@empty%
+  \let\pgf@up@bb\@empty%
+  \setkeys{pgfup}{#1}%
+  \expandafter\def\expandafter\pgf@up@action\expandafter{\csname pgfsys@\pgf@up@fill\pgf@up@stroke\endcsname}%
+  \ifx\pgf@up@stroke\@empty%
+    \ifx\pgf@up@fill\@empty%
+      \ifx\pgf@up@clip\@empty%
+        \let\pgf@up@action=\@empty%
+        \pgfsyssoftpath@setcurrentpath\@empty%
+      \else%
+        % only clipping  
+        \let\pgf@up@action=\pgfsys@discardpath%
+      \fi%
+    \fi%
+  \fi%  
+  \pgfprocessround{\pgfsyssoftpath@currentpath}{\pgfsyssoftpath@currentpath}% change the current path
+  %
+  % Check whether the path is stroked. If so, add half the path width
+  % to the bounding box.
+  %
+  \ifpgf@relevantforpicturesize%
+    \ifx\pgf@up@stroke\@empty%
+    \else%
+      \pgf@x=\pgf@pathminx\advance\pgf@x by-.5\pgflinewidth%
+      \ifdim\pgf@x<\pgf@picminx\global\pgf@picminx\pgf@x\fi%
+      \pgf@y=\pgf@pathminy\advance\pgf@y by-.5\pgflinewidth%
+      \ifdim\pgf@y<\pgf@picminy\global\pgf@picminy\pgf@y\fi%
+      \pgf@x=\pgf@pathmaxx\advance\pgf@x by.5\pgflinewidth%
+      \ifdim\pgf@x>\pgf@picmaxx\global\pgf@picmaxx\pgf@x\fi%
+      \pgf@y=\pgf@pathmaxy\advance\pgf@y by.5\pgflinewidth%
+      \ifdim\pgf@y>\pgf@picmaxy\global\pgf@picmaxy\pgf@y\fi%
+    \fi%
+  \fi%
+  %
+  \ifx\pgf@up@clip\@empty%
+    \ifx\pgf@up@stroke\@empty%
+      \pgfsyssoftpath@invokecurrentpath%
+      \pgfsyssoftpath@getcurrentpath\pgf@last@used@path%
+      \pgf@up@action%
+    \else%
+      \pgf@check@for@arrows%
+      \ifpgf@drawarrows%
+        \pgf@shorten@path@as@needed%
+        \pgfsyssoftpath@invokecurrentpath%
+        \pgfsyssoftpath@getcurrentpath\pgf@last@used@path%
+        \pgf@up@action%
+        \pgfsyssoftpath@setcurrentpath\@empty%
+        \pgf@add@arrows@as@needed%
+      \else%
+        \pgfsyssoftpath@invokecurrentpath%
+        \pgfsyssoftpath@getcurrentpath\pgf@last@used@path%
+        \pgf@up@action%
+      \fi%
+    \fi%
+  \else%
+    \pgfsyssoftpath@invokecurrentpath%
+    \pgfsyssoftpath@getcurrentpath\pgf@last@used@path%
+    \pgfsys@clipnext%
+    \pgf@up@action%
+    \pgf@relevantforpicturesizefalse%
+  \fi%
+  \pgf@up@bb%
+  \pgfsyssoftpath@setcurrentpath\@empty%
+  \pgf@resetpathsizes%
+  \ignorespaces%
+}
+
+
+% Shorten start/end of paths by a certain amount.
+%
+% #1 = amount by which paths should be shortened.
+%
+% Example:
+%
+% \pgfpathmoveto{\pgfpointorigin}
+% \pgfpathlineto{\pgfpoint{10pt}{0pt}
+%
+% % The following has the same effect:
+% \pgfsetshortenstart{1pt}
+% \pgfpathmoveto{\pgfpointorigin}
+% \pgfpathlineto{\pgfpoint{11pt}{0pt}
+
+\def\pgfsetshortenstart#1{\setlength\pgf@shorten@start@additional{#1}}
+\def\pgfsetshortenend#1{\setlength\pgf@shorten@end@additional{#1}}
+
+\newif\ifpgf@drawarrows
+
+\def\pgf@check@for@arrows{%
+  \pgf@drawarrowsfalse%
+  \ifx\pgf@startarrow\@empty\else\pgf@drawarrowstrue\fi%
+  \ifx\pgf@endarrow\@empty\else\pgf@drawarrowstrue\fi%
+  \ifdim\pgf@shorten@end@additional=0pt\relax\else\pgf@drawarrowstrue\fi%
+  \ifdim\pgf@shorten@start@additional=0pt\relax\else\pgf@drawarrowstrue\fi%
+  \ifpgf@drawarrows%
+    \pgfsyssoftpath@getcurrentpath\pgf@arrowpath%
+    \ifx\pgf@arrowpath\@empty%
+      \pgf@drawarrowsfalse%
+    \else%
+      \pgfprocesscheckclosed{\pgf@arrowpath}{\pgf@drawarrowsfalse}%
+    \fi%
+  \fi%
+}
+
+\newdimen\pgf@shorten@end@additional
+\newdimen\pgf@shorten@start@additional
+
+\let\pgf@shorten@end=\@empty
+\let\pgf@shorten@start=\@empty
+
+\def\pgf@shorten@path@as@needed{%
+  \pgfprocesspathextractpoints{\pgf@arrowpath}%
+  \let\pgf@arrow@next=\pgf@shorten@now%
+  \ifx\pgf@shorten@start\@empty%
+    \ifx\pgf@shorten@end\@empty%
+      \ifdim\pgf@shorten@end@additional=0pt\relax%
+        \ifdim\pgf@shorten@start@additional=0pt\relax%
+          \let\pgf@arrow@next=\relax%
+        \fi%
+      \fi%
+    \fi%
+  \fi%
+  \pgf@arrow@next%
+}
+
+\def\pgf@shorten@now{%
+  {%
+    \pgf@x=0pt%
+    \pgf@shorten@start%
+    \advance\pgf@x by\pgf@shorten@start@additional%
+    \pgf@xc=\pgf@x%
+    \pgf@process{\pgfpointlineatdistance{\pgf@xc}{\pgfpointfirstonpath}{\pgfpointsecondonpath}}%
+    \global\pgf@x=\pgf@x%
+    \global\pgf@y=\pgf@y%
+  }%
+  \edef\pgfpointfirstonpath{\noexpand\pgfpoint{\the\pgf@x}{\the\pgf@y}}%
+  {%
+    \pgf@x=0pt%
+    \pgf@shorten@end%
+    \advance\pgf@x by\pgf@shorten@end@additional%
+    \pgf@xc=\pgf@x%
+    \pgf@process{\pgfpointlineatdistance{\pgf@xc}{\pgfpointlastonpath}{\pgfpointsecondlastonpath}}%
+    \global\pgf@x=\pgf@x%
+    \global\pgf@y=\pgf@y%
+  }%
+  \edef\pgfpointlastonpath{\noexpand\pgfpoint{\the\pgf@x}{\the\pgf@y}}%
+  \pgfprocesspathreplacestartandend{\pgf@arrowpath}{\pgfpointfirstonpath}{\pgfpointlastonpath}%
+  \pgfsyssoftpath@setcurrentpath\pgf@arrowpath%
+}
+
+\def\pgf@add@arrows@as@needed{%
+  \ifx\pgf@startarrow\@empty%
+  \else%
+    \pgflowlevelobj%
+      {\pgftransformarrow{\pgfpointsecondonpath}{\pgfpointfirstonpath}}
+      {\pgf@startarrow}%
+  \fi%
+  \ifx\pgf@endarrow\@empty%
+  \else%
+    \pgflowlevelobj%
+      {\pgftransformarrow{\pgfpointsecondlastonpath}{\pgfpointlastonpath}}
+      {\pgf@endarrow}%
+  \fi%      
+}
+
+\let\pgf@startarrow=\@empty
+\let\pgf@endarrow=\@empty
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepoints.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepoints.code.tex
new file mode 100644
index 00000000000..26e63666e02
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepoints.code.tex
@@ -0,0 +1,822 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfcorepoints.code.tex,v 1.1.1.1 2005/06/29 12:14:04 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+\newdimen\pgf@picminx
+\newdimen\pgf@picmaxx
+\newdimen\pgf@picminy
+\newdimen\pgf@picmaxy
+
+\newdimen\pgf@pathminx
+\newdimen\pgf@pathmaxx
+\newdimen\pgf@pathminy
+\newdimen\pgf@pathmaxy
+
+\newif\ifpgf@relevantforpicturesize
+
+\def\pgf@process#1{{#1\global\pgf@x=\pgf@x\global\pgf@y=\pgf@y}}
+
+\newdimen\pgf@tempdim
+\def\pgf@setlength#1#2{% these will be used only when \nullfont is active
+  \begingroup% keep font setting local
+    \pgf@selectfontorig% restore font
+    \pgf@setlengthorig\pgf@tempdim{#2}% calculate dimension (possibly using calc)
+    \global\pgf@tempdim\pgf@tempdim% make dimension global
+  \endgroup%
+  #1=\pgf@tempdim\relax}
+\def\pgf@addtolength#1#2{%
+  \begingroup% keep font setting local
+    \pgf@selectfontorig% restore font
+    \pgf@tempdim#1\relax%
+    \pgf@addtolengthorig\pgf@tempdim{#2}% calculate dimension (possibly using calc)
+    \global\pgf@tempdim\pgf@tempdim% make dimension global
+  \endgroup%
+  #1=\pgf@tempdim\relax}
+\newcounter{pgf@tempcount}
+\def\pgf@setcounter#1#2{%
+  \setcounter{pgf@tempcount}{#2}% makes change global!
+  \csname c@#1\endcsname=\c@pgf@tempcount\relax}
+\def\pgf@selectfont{\pgf@selectfontorig\nullfont}
+
+
+
+% Return a point
+%  
+% #1 = x-coordinate of the point 
+% #2 = y-coordinate of the point 
+%  
+% x = #1
+% y = #2
+%
+% Example:
+%
+% \pgfpathmoveto{\pgfpoint{2pt}{3cm}}
+
+\def\pgfpoint#1#2{%
+  \setlength\pgf@x{#1}%
+  \setlength\pgf@y{#2}\ignorespaces}
+
+% Return the origin.
+%  
+% x = 0
+% y = 0
+%
+% Example:
+%
+% \pgfpathmoveto{\pgfpointorigin}
+
+\def\pgfpointorigin{\pgfpoint{0pt}{0pt}\ignorespaces}
+
+
+
+% Return a transformed point
+%  
+% #1 = a point
+%
+% Description:
+%
+% This command applies pgf's current transformation matrix to the
+% given point. Normally, this is done automatically by commands like
+% lineto or moveto, but sometimes you may wish to access a transformed
+% point yourself. For example, this command is useful for a low level
+% coordinate system shift:
+%
+% Example:
+%
+% \begin{pgflowleveltransformshiftscope}{\pgfpointtransformed{\pgfpointorigin}}
+%   \pgfbox[center,center]{Hi!}
+% \end{pgflowleveltransformshiftscope}
+
+\def\pgfpointtransformed#1{%
+  \pgf@process{%
+    #1%
+    \pgf@pos@transform{\pgf@x}{\pgf@y}%
+  }%
+}
+
+
+% Return the difference vector of two points.
+%  
+% #1 = start of vector  
+% #2 = end of vector  
+%  
+% x = x-component of difference 
+% y = y-component of difference 
+%
+% Example:
+%
+% \pgfpathmoveto{\pgfpointdiff{\pgfpointxy{1}{1}}{\pgfpointxy{2}{3}}}
+
+\def\pgfpointdiff#1#2{%
+  \pgf@process{#1}%
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \pgf@process{#2}%
+  \advance\pgf@x by-\pgf@xa\relax%
+  \advance\pgf@y by-\pgf@ya\relax\ignorespaces}
+
+% Add two vectors. 
+%  
+% #1 = first vector  
+% #2 = second vector  
+%  
+% x = x-component of addition
+% y = y-component of addition
+%
+% Example:
+%
+% \pgfpathmoveto{\pgfpointadd{\pgfpointxy{0}{1}}{\pgfpointxy{2}{3}}}
+
+\def\pgfpointadd#1#2{%
+  \pgf@process{#1}%
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \pgf@process{#2}%
+  \advance\pgf@x by\pgf@xa%
+  \advance\pgf@y by\pgf@ya}
+
+
+
+% Multiply a vector by a factor.
+%  
+% #1 = factor  
+% #2 = vector  
+%
+% Example:
+%
+% \pgfpointscale{2}{\pgfpointxy{0}{1}}
+
+\def\pgfpointscale#1#2{%
+  \pgf@process{#2}%
+  \pgf@x=#1\pgf@x%
+  \pgf@y=#1\pgf@y%
+}
+
+
+% The intersection of two lines
+%  
+% #1 = point on first line
+% #2 = another point on first line
+% #3 = point on second line
+% #4 = another point on second line
+%
+% Returns the intersection of the two lines. If there is no
+% intersection or if the points #1 and #2 or the points #3 and #4 are
+% identical, the behaviour is not specified.
+%
+% Example:
+%
+% \pgfpointintersectionoflines{\pgfpointxy{0}{1}}{\pgfpointxy{1}{0}}{\pgfpointxy{2}{2}}{\pgfpointxy{3}{4}}
+
+\def\pgfpointintersectionoflines#1#2#3#4{%
+  {
+    % 
+    % Compute orthogonal vector to #1--#2
+    % 
+    \pgf@process{#2}%
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \pgf@process{#1}%
+    \advance\pgf@xa by-\pgf@x%
+    \advance\pgf@ya by-\pgf@y%
+    \pgf@ya=-\pgf@ya%
+    % Normalise a bit
+    \c@pgf@counta=\pgf@xa%
+    \ifnum\c@pgf@counta<0\relax%
+      \c@pgf@counta=-\c@pgf@counta\relax%
+    \fi%
+    \c@pgf@countb=\pgf@ya%
+    \ifnum\c@pgf@countb<0\relax%
+      \c@pgf@countb=-\c@pgf@countb\relax%
+    \fi%
+    \advance\c@pgf@counta by\c@pgf@countb\relax%
+    \divide\c@pgf@counta by 65536\relax%
+    \ifnum\c@pgf@counta>0\relax%
+      \divide\pgf@xa by\c@pgf@counta\relax%
+      \divide\pgf@ya by\c@pgf@counta\relax%
+    \fi%
+    %
+    % Compute projection
+    %
+    \pgf@xc=\pgf@sys@tonumber{\pgf@ya}\pgf@x%
+    \advance\pgf@xc by\pgf@sys@tonumber{\pgf@xa}\pgf@y%
+    % 
+    % The orthogonal vector is (\pgf@ya,\pgf@xa)
+    % 
+    % 
+    % Compute orthogonal vector to #3--#4
+    % 
+    \pgf@process{#4}%
+    \pgf@xb=\pgf@x%
+    \pgf@yb=\pgf@y%
+    \pgf@process{#3}%
+    \advance\pgf@xb by-\pgf@x%
+    \advance\pgf@yb by-\pgf@y%
+    \pgf@yb=-\pgf@yb%
+    % Normalise a bit
+    \c@pgf@counta=\pgf@xb%
+    \ifnum\c@pgf@counta<0\relax%
+      \c@pgf@counta=-\c@pgf@counta\relax%
+    \fi%
+    \c@pgf@countb=\pgf@yb%
+    \ifnum\c@pgf@countb<0\relax%
+      \c@pgf@countb=-\c@pgf@countb\relax%
+    \fi%
+    \advance\c@pgf@counta by\c@pgf@countb\relax%
+    \divide\c@pgf@counta by 65536\relax%
+    \ifnum\c@pgf@counta>0\relax%
+      \divide\pgf@xb by\c@pgf@counta\relax%
+      \divide\pgf@yb by\c@pgf@counta\relax%
+    \fi%
+    %
+    % Compute projection
+    %
+    \pgf@yc=\pgf@sys@tonumber{\pgf@yb}\pgf@x%
+    \advance\pgf@yc by\pgf@sys@tonumber{\pgf@xb}\pgf@y%
+    % 
+    % The orthogonal vector is (\pgf@yb,\pgf@xb)
+    % 
+    % Setup transformation matrx (this is just to use the matrix
+    % inversion)
+    % 
+    \pgfsettransform{{\pgf@sys@tonumber\pgf@ya}{\pgf@sys@tonumber\pgf@yb}{\pgf@sys@tonumber\pgf@xa}{\pgf@sys@tonumber\pgf@xb}{0pt}{0pt}}%
+    \pgftransforminvert%
+    \pgf@process{\pgfpointtransformed{\pgfpoint{\pgf@xc}{\pgf@yc}}}%
+  }%
+}
+
+
+% Returns point on a line from #2 to #3 at time #1.
+%  
+% #1 = a time, where 0 is the start and 1 is the end
+% #2 = start point
+% #3 = end point 
+%  
+% x = x-component of #1*start + (1-#1)*end
+% y = y-component of #1*start + (1-#1)*end 
+%
+% Example:
+%
+% % Middle of (1,1) and (2,3)
+% \pgfpathmoveto{\pgfpointlineattime{0.5}{\pgfpointxy{0}{1}}{\pgfpointxy{2}{3}}}
+
+\def\pgfpointlineattime#1#2#3{%
+  \pgf@process{#3}%
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \pgf@process{#2}%
+  \advance\pgf@xa by-\pgf@x\relax%
+  \advance\pgf@ya by-\pgf@y\relax%
+  \advance\pgf@x by #1\pgf@xa\relax%
+  \advance\pgf@y by #1\pgf@ya\relax%  
+  \ignorespaces}
+
+
+% Move point #2 #1 many units in the direction of #3.
+%  
+% #1 = a distance
+% #2 = start point
+% #3 = end point 
+%  
+% x = x-component of start + #1*(normalise(end-start))
+% y = y-component of start + #1*(normalise(end-start))
+%
+% Example:
+%
+%
+% \pgfpathmoveto{\pgfpointlineatdistance{2pt}{\pgfpointxy{0}{1}}{\pgfpointxy{2}{3}}}
+% \pgfpathlineto{\pgfpointlineatdistance{3pt}{\pgfpointxy{2}{3}}{\pgfpointxy{0}{1}}}
+
+\def\pgfpointlineatdistance#1#2#3{%
+  \pgf@process{#2}%
+  \pgf@xb=\pgf@x\relax% xb/yb = start point
+  \pgf@yb=\pgf@y\relax%
+  \pgf@process{#3}%
+  \advance\pgf@x by-\pgf@xb\relax%
+  \advance\pgf@y by-\pgf@yb\relax%
+  \pgf@process{\pgfpointnormalised{}}% x/y = normalised vector
+  \setlength\pgf@xa{#1}%
+  \pgf@ya=\pgf@xa\relax%
+  \pgf@xa=\pgf@sys@tonumber{\pgf@x}\pgf@xa%
+  \pgf@ya=\pgf@sys@tonumber{\pgf@y}\pgf@ya%
+  \pgf@x=\pgf@xb\relax%
+  \pgf@y=\pgf@yb\relax%
+  \advance\pgf@x by\pgf@xa\relax%
+  \advance\pgf@y by\pgf@ya\relax%
+  \ignorespaces}
+
+
+% Returns point on a curve from #2 to #5 with controls #3 and #4 at time #1.
+%  
+% #1 = a time
+% #2 = start point
+% #3 = first control point
+% #4 = second control point
+% #5 = end point 
+%  
+% x = x-component of place on the curve at time t
+% y = y-component of place on the curve at time t
+%
+% Additionally, (\pgf@xa,\pgf@ya) and (\pgf@xb,\pgf@yb) will be on a
+% tangent to the point on the curve (this can be useful for computing
+% a label rotation).
+%
+% Example:
+%
+% % Middle of (1,1) and (2,3)
+% \pgfpathmoveto{\pgfpointcurveattime{0.5}{\pgfpointxy{0}{1}}{\pgfpointxy{1}{1}}{\pgfpointxy{1}{1}}{\pgfpointxy{2}{3}}}
+
+\def\pgfpointcurveattime#1#2#3#4#5{%
+  \def\pgf@time@s{#1}%
+  \pgf@x=#1pt%
+  \pgf@x=-\pgf@x%
+  \advance\pgf@x by 1pt%
+  \edef\pgf@time@t{\pgf@sys@tonumber{\pgf@x}}%
+  \pgf@process{#5}%
+  \pgf@xc=\pgf@x%
+  \pgf@yc=\pgf@y%
+  \pgf@process{#4}%
+  \pgf@xb=\pgf@x%
+  \pgf@yb=\pgf@y%
+  \pgf@process{#3}%
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \pgf@process{#2}%
+  % First iteration:
+  \pgf@x=\pgf@time@t\pgf@x\advance\pgf@x by\pgf@time@s\pgf@xa%
+  \pgf@y=\pgf@time@t\pgf@y\advance\pgf@y by\pgf@time@s\pgf@ya%
+  \pgf@xa=\pgf@time@t\pgf@xa\advance\pgf@xa by\pgf@time@s\pgf@xb%
+  \pgf@ya=\pgf@time@t\pgf@ya\advance\pgf@ya by\pgf@time@s\pgf@yb%
+  \pgf@xb=\pgf@time@t\pgf@xb\advance\pgf@xb by\pgf@time@s\pgf@xc%
+  \pgf@yb=\pgf@time@t\pgf@yb\advance\pgf@yb by\pgf@time@s\pgf@yc%
+  % Second iteration:
+  \pgf@x=\pgf@time@t\pgf@x\advance\pgf@x by\pgf@time@s\pgf@xa%
+  \pgf@y=\pgf@time@t\pgf@y\advance\pgf@y by\pgf@time@s\pgf@ya%
+  \pgf@xa=\pgf@time@t\pgf@xa\advance\pgf@xa by\pgf@time@s\pgf@xb%
+  \pgf@ya=\pgf@time@t\pgf@ya\advance\pgf@ya by\pgf@time@s\pgf@yb%
+  % Save x/y
+  \pgf@xb=\pgf@x%
+  \pgf@yb=\pgf@y%
+  % Third iteration:
+  \pgf@x=\pgf@time@t\pgf@x\advance\pgf@x by\pgf@time@s\pgf@xa%
+  \pgf@y=\pgf@time@t\pgf@y\advance\pgf@y by\pgf@time@s\pgf@ya%
+}
+
+
+
+
+
+
+% Internal registers
+\newdimen\pgf@xx
+\newdimen\pgf@xy
+\newdimen\pgf@yx
+\newdimen\pgf@yy
+\newdimen\pgf@zx
+\newdimen\pgf@zy
+
+
+
+% Store a value in polar-coordinates
+%
+% #1 = a degree
+% #2 = a radius
+%
+% x = #2 * cos(#1)
+% y = #2 * sin(#2)
+% 
+% Example:
+%
+% % Create a slanted rectangle
+%
+% \pgfpathmoveto{\pgfpointpolar{30}{1cm}}
+
+\def\pgfpointpolar#1#2{%
+  \pgfsincos{#1}%
+  \in@/{#2}%
+  \ifin@%
+    \pgf@polar@#2\@@%
+  \else%
+    \pgf@polar@#2/#2\@@%
+  \fi%  
+  \pgf@xa=\pgf@sys@tonumber{\pgf@x}\pgf@xa%
+  \pgf@ya=\pgf@sys@tonumber{\pgf@y}\pgf@ya%
+  \pgf@y=\pgf@xa\relax%
+  \pgf@x=\pgf@ya\ignorespaces}
+
+\def\pgf@polar@#1/#2\@@{%
+  \setlength{\pgf@xa}{#2}%
+  \setlength{\pgf@ya}{#1}%  
+}
+
+
+
+% Store the vector #1 * x-vec + #2 * y-vec
+%
+% #1 = a factor for the x-vector
+% #2 = a factor fot the y-vector
+%
+% x = x-component of result vector
+% y = y-component of result vector
+%
+% Description:
+% 
+% This command can be used to create a new coordinate system
+% without using the rotate/translate/scale commands. This
+% may be useful, if you do not want arrows and line width to
+% be scaled/transformed together with the coordinate system.
+% 
+% Example:
+%
+% % Create a slanted rectangle
+%
+% \pgfsetxvec{\pgfpoint{1cm}{1cm}}
+% \pgfsetyvec{\pgfpoint{0cm}{1cm}}
+% 
+% \pgfpathmoveto{\pgfpointxy{0}{0}}
+% \pgfpathlineto{\pgfpointxy{1}{0}}
+% \pgfpathlineto{\pgfpointxy{1}{1}}
+% \pgfpathlineto{\pgfpointxy{0}{1}}
+% \pgfclosestroke
+
+\def\pgfpointxy#1#2{\pgf@x=#1\pgf@xx%
+  \advance\pgf@x by #2\pgf@yx%
+  \pgf@y=#1\pgf@xy%
+  \advance\pgf@y by #2\pgf@yy}
+
+
+% Store the vector #1 * x-vec + #2 * y-vec + #3 * z-vec
+%
+% #1 = a factor for the x-vector
+% #2 = a factor fot the y-vector
+% #3 = a factor fot the z-vector
+%
+% x = x-component of result vector
+% y = y-component of result vector
+%
+%
+% Description:
+% 
+% This command allows you to use a 3d coordinate system.
+% 
+%
+% Example:
+%
+% % Draw a cubus
+% 
+% \pgfline{\pgfpointxyz{0}{0}{0}}{\pgfpointxyz{0}{0}{1}}
+% \pgfline{\pgfpointxyz{0}{1}{0}}{\pgfpointxyz{0}{1}{1}}
+% \pgfline{\pgfpointxyz{1}{0}{0}}{\pgfpointxyz{1}{0}{1}}
+% \pgfline{\pgfpointxyz{1}{1}{0}}{\pgfpointxyz{1}{1}{1}}
+% \pgfline{\pgfpointxyz{0}{0}{0}}{\pgfpointxyz{0}{1}{0}}
+% \pgfline{\pgfpointxyz{0}{0}{1}}{\pgfpointxyz{0}{1}{1}}
+% \pgfline{\pgfpointxyz{1}{0}{0}}{\pgfpointxyz{1}{1}{0}}
+% \pgfline{\pgfpointxyz{1}{0}{1}}{\pgfpointxyz{1}{1}{1}}
+% \pgfline{\pgfpointxyz{0}{0}{0}}{\pgfpointxyz{1}{0}{0}}
+% \pgfline{\pgfpointxyz{0}{0}{1}}{\pgfpointxyz{1}{0}{1}}
+% \pgfline{\pgfpointxyz{0}{1}{0}}{\pgfpointxyz{1}{1}{0}}
+% \pgfline{\pgfpointxyz{0}{1}{1}}{\pgfpointxyz{1}{1}{1}}
+
+\def\pgfpointxyz#1#2#3{%
+  \pgf@x=#1\pgf@xx%
+  \advance\pgf@x by #2\pgf@yx%
+  \advance\pgf@x by #3\pgf@zx%
+  \pgf@y=#1\pgf@xy%
+  \advance\pgf@y by #2\pgf@yy%
+  \advance\pgf@y by #3\pgf@zy}
+
+
+
+
+% Set the x-vector
+%
+% #1 = a point the is the new x-vector
+%
+% Example:
+%
+% \pgfsetxvec{\pgfpoint{1cm}{0cm}}
+
+\def\pgfsetxvec#1{%
+  \pgf@process{#1}%
+  \pgf@xx=\pgf@x%
+  \pgf@xy=\pgf@y%
+  \ignorespaces}
+
+
+% Set the y-vector
+%
+% #1 = a point the is the new y-vector
+%
+% Example:
+%
+% \pgfsetyvec{\pgfpoint{0cm}{1cm}}
+
+\def\pgfsetyvec#1{%
+  \pgf@process{#1}%
+  \pgf@yx=\pgf@x%
+  \pgf@yy=\pgf@y%
+  \ignorespaces}
+
+
+% Set the z-vector
+%
+% #1 = a point the is the new z-vector
+%
+% Example:
+%
+% \pgfsetzvec{\pgfpoint{-0.385cm}{-0.385cm}}
+
+\def\pgfsetzvec#1{%
+  \pgf@process{#1}%
+  \pgf@zx=\pgf@x%
+  \pgf@zy=\pgf@y%
+  \ignorespaces}
+
+
+
+% Default values
+\pgfsetxvec{\pgfpoint{1cm}{0cm}}
+\pgfsetyvec{\pgfpoint{0cm}{1cm}}
+\pgfsetzvec{\pgfpoint{-0.385cm}{-0.385cm}}
+
+
+
+
+% Normalise a point.
+%
+% #1 = point with coordinates (a,b)
+%
+% x  = a/\sqrt(a*a+b*b)
+% y  = b/\sqrt(a*a+b*b)
+%
+% Example:
+%
+% \pgfpointnormalised{\pgfpointxy{2}{1}}
+
+\def\pgfpointnormalised#1{%
+  \pgf@process{#1}%
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \ifdim\pgf@x<0pt\relax% move into first quadrant
+    \pgf@x=-\pgf@x%
+  \fi%
+  \ifdim\pgf@y<0pt\relax%
+    \pgf@y=-\pgf@y%
+  \fi%
+  \ifdim\pgf@x>\pgf@y% x > y
+    % make point small
+    \c@pgf@counta=\pgf@x%
+    \divide\c@pgf@counta by 65536\relax%
+    \ifnum\c@pgf@counta=0\relax%
+      \c@pgf@counta=1\relax%
+    \fi%
+    \divide\pgf@x by\c@pgf@counta%
+    \divide\pgf@y by\c@pgf@counta%
+    \divide\pgf@xa by\c@pgf@counta%
+    \divide\pgf@ya by\c@pgf@counta%
+    % ok.
+    \pgf@x=.125\pgf@x%
+    \pgf@y=.125\pgf@y%
+    \c@pgf@counta=\pgf@x%
+    \c@pgf@countb=\pgf@y%
+    \multiply\c@pgf@countb by 100%
+    \ifnum\c@pgf@counta<64\relax%
+      \pgf@x=1pt\relax%
+      \pgf@y=0pt\relax%
+    \else%
+      \divide\c@pgf@countb by \c@pgf@counta%
+      \pgf@setmath{x}{\csname pgf@cosfrac\the\c@pgf@countb\endcsname}%
+      \pgf@xc=8192pt%
+      \divide\pgf@xc by\c@pgf@counta%
+      \pgf@y=\pgf@sys@tonumber{\pgf@xc}\pgf@ya%
+      \pgf@y=\pgf@sys@tonumber{\pgf@x}\pgf@y%
+    \fi%
+    \ifdim\pgf@xa<0pt%
+      \pgf@x=-\pgf@x%
+    \fi%
+  \else% x <= y
+    % make point small
+    \c@pgf@counta=\pgf@y%
+    \divide\c@pgf@counta by 65536\relax%
+    \ifnum\c@pgf@counta=0\relax%
+      \c@pgf@counta=1\relax%
+    \fi%
+    \divide\pgf@x by\c@pgf@counta%
+    \divide\pgf@y by\c@pgf@counta%
+    \divide\pgf@xa by\c@pgf@counta%
+    \divide\pgf@ya by\c@pgf@counta%
+    % ok.
+    \pgf@x=.125\pgf@x%
+    \pgf@y=.125\pgf@y%
+    \c@pgf@counta=\pgf@y%
+    \c@pgf@countb=\pgf@x%
+    \multiply\c@pgf@countb by 100%
+    \ifnum\c@pgf@counta<64\relax%
+      \pgf@y=1pt\relax%
+      \pgf@x=0pt\relax%
+    \else%
+      \divide\c@pgf@countb by \c@pgf@counta%
+      \pgf@setmath{y}{\csname pgf@cosfrac\the\c@pgf@countb\endcsname}%
+      \pgf@xc=8192pt%
+      \divide\pgf@xc by\c@pgf@counta%
+      \pgf@x=\pgf@sys@tonumber{\pgf@xc}\pgf@xa%
+      \pgf@x=\pgf@sys@tonumber{\pgf@y}\pgf@x%
+    \fi%
+    \ifdim\pgf@ya<0pt%
+      \pgf@y=-\pgf@y%
+    \fi%
+  \fi\ignorespaces}
+
+
+
+
+
+% A point on a rectangle in a certain direction.
+%
+% #1 = a point pointing in some direction (length should be about 1pt,
+%      but need not be exact)
+% #2 = upper right corner of a rectangle centered at the origin
+%
+% Returns the intersection of a line starting at the origin going in
+% the given direction and the rectangle's border.
+%
+% Example:
+%
+% \pgfpointborderrectangle{\pgfpointnormalised{\pgfpointxy{2}{1}}
+%   {\pgfpoint{1cm}{2cm}}
+
+\def\pgfpointborderrectangle#1#2{%
+  \pgf@process{#2}%
+  \pgf@xb=\pgf@x%
+  \pgf@yb=\pgf@y%
+  \pgf@process{#1}%
+  % Ok, let's find out about the direction:
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \ifnum\pgf@xa<0\relax% move into first quadrant
+    \pgf@x=-\pgf@x%
+  \fi%
+  \ifnum\pgf@ya<0\relax%
+    \pgf@y=-\pgf@y%
+  \fi%
+  \pgf@xc=.125\pgf@x%
+  \pgf@yc=.125\pgf@y%
+  \c@pgf@counta=\pgf@xc%
+  \c@pgf@countb=\pgf@yc%
+  \ifnum\c@pgf@countb<\c@pgf@counta%
+    \ifnum\c@pgf@counta<255\relax%
+      \pgf@y=\pgf@yb\relax%
+      \pgf@x=0pt\relax%
+    \else%
+      \pgf@xc=8192pt%
+      \divide\pgf@xc by\c@pgf@counta% \pgf@xc = 1/\pgf@x
+      \pgf@y=\pgf@sys@tonumber{\pgf@xc}\pgf@y%
+      \pgf@y=\pgf@sys@tonumber{\pgf@xb}\pgf@y%
+      \ifnum\pgf@y<\pgf@yb%
+        \pgf@x=\pgf@xb%
+      \else% rats, calculate intersection on upper side
+        \ifnum\c@pgf@countb<255\relax%
+          \pgf@x=\pgf@xb\relax%
+          \pgf@y=0pt\relax%
+        \else%
+          \pgf@yc=8192pt%
+          \divide\pgf@yc by\c@pgf@countb% \pgf@xc = 1/\pgf@x
+          \pgf@x=\pgf@sys@tonumber{\pgf@yc}\pgf@x%
+          \pgf@x=\pgf@sys@tonumber{\pgf@yb}\pgf@x%
+          \pgf@y=\pgf@yb%
+        \fi%
+      \fi%  
+    \fi%
+  \else%
+    \ifnum\c@pgf@countb<255\relax%
+      \pgf@x=\pgf@xb\relax%
+      \pgf@y=0pt\relax%
+    \else%
+      \pgf@yc=8192pt%
+      \divide\pgf@yc by\c@pgf@countb% \pgf@xc = 1/\pgf@x
+      \pgf@x=\pgf@sys@tonumber{\pgf@yc}\pgf@x%
+      \pgf@x=\pgf@sys@tonumber{\pgf@yb}\pgf@x%
+      \ifnum\pgf@x<\pgf@xb%
+        \pgf@y=\pgf@yb%
+      \else%
+        \ifnum\c@pgf@counta<255\relax%
+          \pgf@y=\pgf@yb\relax%
+          \pgf@x=0pt\relax%
+        \else%
+          \pgf@xc=8192pt%
+          \divide\pgf@xc by\c@pgf@counta% \pgf@xc = 1/\pgf@x
+          \pgf@y=\pgf@sys@tonumber{\pgf@xc}\pgf@y%
+          \pgf@y=\pgf@sys@tonumber{\pgf@xb}\pgf@y%
+          \pgf@x=\pgf@xb%
+        \fi%
+      \fi%  
+    \fi%
+  \fi%  
+  \ifnum\pgf@xa<0\relax\pgf@x=-\pgf@x\fi%
+  \ifnum\pgf@ya<0\relax\pgf@y=-\pgf@y\fi%    
+}
+
+
+
+
+% An approximation to a point on an ellipse in a certain
+% direction. Will be exact only if the ellipse is a circle. 
+%
+% #1 = a point pointing in some direction
+% #2 = upper right corner of a bounding box for the ellipse
+%
+% Returns the intersection of a line starting at the origin going in
+% the given direction and the ellipses border.
+%
+% Example:
+%
+% \pgfpointborderellipse{\pgfpointnormalised{\pgfpointxy{2}{1}}
+%   {\pgfpoint{1cm}{2cm}}
+
+\def\pgfpointborderellipse#1#2{%
+  \pgf@process{#2}%
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \ifdim\pgf@xa=\pgf@ya% circle. that's easy!
+    \pgf@process{\pgfpointnormalised{#1}}%
+    \pgf@x=\pgf@sys@tonumber{\pgf@xa}\pgf@x%
+    \pgf@y=\pgf@sys@tonumber{\pgf@xa}\pgf@y%
+  \else%
+    \ifdim\pgf@xa<\pgf@ya%
+      % Ok, first, let's compute x/y:
+      \c@pgf@countb=\pgf@ya%
+      \divide\c@pgf@countb by65536\relax%
+      \divide\pgf@x by\c@pgf@countb%
+      \divide\pgf@y by\c@pgf@countb%
+      \pgf@xc=\pgf@x%
+      \pgf@yc=8192pt%
+      \pgf@y=.125\pgf@y%
+      \c@pgf@countb=\pgf@y%
+      \divide\pgf@yc by\c@pgf@countb%
+      \pgf@process{#1}%
+      \pgf@y=\pgf@sys@tonumber{\pgf@yc}\pgf@y%
+      \pgf@y=\pgf@sys@tonumber{\pgf@xc}\pgf@y%
+      \pgf@process{\pgfpointnormalised{}}%
+      \pgf@x=\pgf@sys@tonumber{\pgf@xa}\pgf@x%
+      \pgf@y=\pgf@sys@tonumber{\pgf@ya}\pgf@y%
+    \else%
+      % Ok, now let's compute y/x:
+      \c@pgf@countb=\pgf@xa%
+      \divide\c@pgf@countb by65536\relax%
+      \divide\pgf@x by\c@pgf@countb%
+      \divide\pgf@y by\c@pgf@countb%
+      \pgf@yc=\pgf@y%
+      \pgf@xc=8192pt%
+      \pgf@x=.125\pgf@x%
+      \c@pgf@countb=\pgf@x%
+      \divide\pgf@xc by\c@pgf@countb%
+      \pgf@process{#1}%
+      \pgf@x=\pgf@sys@tonumber{\pgf@yc}\pgf@x%
+      \pgf@x=\pgf@sys@tonumber{\pgf@xc}\pgf@x%
+      \pgf@process{\pgfpointnormalised{}}%
+      \pgf@x=\pgf@sys@tonumber{\pgf@xa}\pgf@x%
+      \pgf@y=\pgf@sys@tonumber{\pgf@ya}\pgf@y%
+    \fi%  
+  \fi%
+}
+
+
+
+
+
+% Extract the x-coordinate of a point to a dimensions
+%  
+% #1 = a TeX dimension
+% #2 = a point
+%
+% Example:
+%
+% \newdimen\mydim
+% \pgfextractx{\mydim}{\pgfpoint{2cm}{4pt}}
+% % \mydim is now 2cm
+
+\def\pgfextractx#1#2{%
+  \pgf@process{#2}%
+  #1=1.00374\pgf@x\relax}
+
+
+% Extract the y-coordinate of a point to a dimensions
+%  
+% #1 = a TeX dimension
+% #2 = a point
+%
+% Example:
+%
+% \newdimen\mydim
+% \pgfextracty{\mydim}{\pgfpoint{2cm}{4pt}}
+% % \mydim is now 4pt
+
+\def\pgfextracty#1#2{%
+  \pgf@process{#2}%
+  #1=1.00374\pgf@y\relax}
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorequick.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorequick.code.tex
new file mode 100644
index 00000000000..50c63ac22c7
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorequick.code.tex
@@ -0,0 +1,131 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfcorequick.code.tex,v 1.1.1.1 2005/06/29 12:14:04 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+% Quick version of basic drawing commands. Most high-level commands
+% are not available if these commands are used.
+
+% Move current point to (#1,#2).
+%
+% #1 = x dimension of new current point
+% #2 = y dimension of new current point
+% 
+% Example:
+%
+% \pgfpathqmoveto{0pt}{0pt}
+% \pgfpathqlineto{1pt}{1pt}
+% \pgfpathqcurveto{2pt}{1pt}{2pt}{2pt}{3pt}{2pt}
+% \pgfqstroke
+
+\def\pgfpathqmoveto#1#2{\pgfsyssoftpath@moveto{#1}{#2}}
+
+
+% Append a line to (#1,#2) to the current path.
+%
+% #1 = x dimension of target
+% #2 = y dimension of target
+% 
+% Example:
+%
+% \pgfpathqmoveto{0pt}{0pt}
+% \pgfpathqlineto{1pt}{1pt}
+% \pgfpathqcurveto{2pt}{1pt}{2pt}{2pt}{3pt}{2pt}
+% \pgfqstroke
+
+\def\pgfpathqlineto#1#2{\pgfsyssoftpath@lineto{#1}{#2}}
+
+
+% Append a bezier spline to the current path.
+%
+% #1 = x dimension of first support point
+% #2 = y dimension of first support point
+% #3 = x dimension of second support point
+% #4 = y dimension of second support point
+% #5 = x dimension of target point
+% #6 = y dimension of target point
+% 
+% Example:
+%
+% \pgfpathqmoveto{0pt}{0pt}
+% \pgfpathqlineto{1pt}{1pt}
+% \pgfpathqcurveto{2pt}{1pt}{2pt}{2pt}{3pt}{2pt}
+% \pgfqstroke
+
+\def\pgfpathqcurveto#1#2#3#4#5#6{\pgfsyssoftpath@curveto{#1}{#2}{#3}{#4}{#5}{#6}}
+
+
+
+
+% Append a circle of the given radius around the origin.
+%
+% #1 = radius
+% 
+% Example:
+%
+% \pgfpathqcircle{10pt}
+% is quicker than
+% \pgfpathcircle{\pgforigin}{10pt}
+
+\def\pgfpathqcircle#1{%
+  {%
+    \pgf@x=#1%
+    \pgf@y=0.555\pgf@x%
+    \pgfsyssoftpath@moveto{\the\pgf@x}{0pt}%
+    \pgfsyssoftpath@curveto{\the\pgf@x}{\the\pgf@y}{\the\pgf@y}{\the\pgf@x}{0pt}{\the\pgf@x}%
+    \pgfsyssoftpath@curveto{-\the\pgf@y}{\the\pgf@x}{-\the\pgf@x}{\the\pgf@y}{-\the\pgf@x}{0pt}%
+    \pgfsyssoftpath@curveto{-\the\pgf@x}{-\the\pgf@y}{-\the\pgf@y}{-\the\pgf@x}{0pt}{-\the\pgf@x}%
+    \pgfsyssoftpath@curveto{\the\pgf@y}{-\the\pgf@x}{\the\pgf@x}{-\the\pgf@y}{\the\pgf@x}{0pt}%
+    \pgfsyssoftpath@closepath%
+  }%
+}
+
+
+
+% Stroke current path. No hooks called.
+% 
+% Example:
+%
+% \pgfpathqmoveto{0cm}{0cm}
+% \pgfpathqlineto{1cm}{1cm}
+% \pgfpathqcurveto{2cm}{1cm}{2cm}{2cm}{3cm}{2cm}
+% \pgfqstroke
+
+\def\pgfusepathqstroke{%
+  \pgfsyssoftpath@flushcurrentpath%
+  \pgfsys@stroke%
+  \pgf@resetpathsizes%
+}
+
+
+% Quickly fill current path.
+
+\def\pgfusepathqfill{%
+  \pgfsyssoftpath@flushcurrentpath%
+  \pgfsys@fill%
+  \pgf@resetpathsizes%
+}
+
+
+% Quickly fill and stroke current path.
+
+\def\pgfusepathqfillstroke{%
+  \pgfsyssoftpath@flushcurrentpath%
+  \pgfsys@fillstroke%
+  \pgf@resetpathsizes%
+}
+
+% Quickly clip current path.
+
+\def\pgfusepathqclip{%
+  \pgfsyssoftpath@flushcurrentpath%
+  \pgfsys@clipnext%
+  \pgfsys@discardpath%
+  \pgf@resetpathsizes%
+}
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorescopes.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorescopes.code.tex
new file mode 100644
index 00000000000..2f68e256038
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorescopes.code.tex
@@ -0,0 +1,379 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfcorescopes.code.tex,v 1.9 2005/10/14 13:13:23 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+% Globals
+
+\newbox\pgfpic
+\newbox\pgf@hbox
+
+\newbox\pgf@layerbox@main
+
+
+% Scopes
+
+
+% Pgf scope environment. All changes of the graphic state are local to
+% the scope.
+%  
+% Example:
+%
+% \begin{pgfscope}
+%    \pgfsetlinewidth{3pt}
+%    \pgfline{\pgfxy(0,0)}{\pgfxy(3,3)}
+% \end{pgfscope}
+
+\def\pgfscope{%
+  \pgfsyssoftpath@setcurrentpath\@empty%
+  \pgfsys@beginscope%
+    \pgf@resetpathsizes%
+    \edef\pgfscope@linewidth{\the\pgflinewidth}%
+    \begingroup}
+\def\endpgfscope{%
+    \endgroup%
+    \global\pgflinewidth=\pgfscope@linewidth%
+  \pgfsys@endscope}
+
+
+
+
+% Quickly insert a box can contain normal TeX text at the origin.
+% 
+% #1 = box of width/height and depth 0pt
+% 
+% Example:
+%
+% \pgfqbox{\mybox}
+
+\def\pgfqbox#1{%
+  \pgfsys@hbox#1%
+} 
+
+
+% Insert a box that can contain normal TeX text at the origin, but
+% with the current coordinate transformation matrix synced with the
+% low-level transformation matrix.
+% 
+% #1 = box of width/height and depth 0pt
+%
+% In essence, this command does the same as if you first said
+% \pgflowlevelsynccm and then \pgfqbox. However, pgf will use a
+% ``TeX-translation'' for the translation part of the transformation
+% cm. This will ensure that hyperlinks ``survive'' at least
+% translations. 
+% 
+% Example:
+%
+% \pgfqboxsynced{\mybox}
+
+\def\pgfqboxsynced#1{%
+  \pgfsys@hboxsynced#1%
+}
+
+
+% Puts some text in a box and inserts it with the current
+% transformations applied.
+% 
+% #1 = List of optional positioning. Possible values are ``left'', ``right'',
+%      ``top'', ``bottom'' and ``base''.
+% #2 = TeX text. May contain verbatims.
+% 
+% Example:
+%
+% \pgftransformshift{\pgfpoint{1cm}{0cm}}
+% \pgftext{Hello World!}
+
+\def\pgftext{\@ifnextchar[\pgf@text{\pgf@text[]}}%
+\def\pgf@text[#1]{%
+  \def\pgf@text@options{#1}%
+  \pgf@maketext\pgf@after@text}
+\def\pgf@after@text{%
+  {
+  \def\pgf@text@hshift{center}%
+  \def\pgf@text@vshift{center}%
+  \def\pgf@marshal{\setkeys{pgfbox}}%
+  \expandafter\pgf@marshal\expandafter{\pgf@text@options}%
+  \csname pgf@halign\pgf@text@hshift\endcsname%
+  \csname pgf@valign\pgf@text@vshift\endcsname%
+  % Protocol sizes:
+  \pgf@process{\pgfpointtransformed{\pgfpoint{0pt}{\dp\pgf@hbox}}}%
+  \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+  \pgf@process{\pgfpointtransformed{\pgfpoint{\wd\pgf@hbox}{\dp\pgf@hbox}}}%
+  \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+  \pgf@process{\pgfpointtransformed{\pgfpoint{0pt}{\ht\pgf@hbox}}}%
+  \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+  \pgf@process{\pgfpointtransformed{\pgfpoint{\wd\pgf@hbox}{\ht\pgf@hbox}}}%
+  \pgf@protocolsizes{\pgf@x}{\pgf@y}%
+  \pgfqboxsynced{\pgf@hbox}%
+  }%
+}
+
+\define@key{pgfbox}{left}[]{\def\pgf@text@hshift{left}}
+\define@key{pgfbox}{center}[]{}
+\define@key{pgfbox}{right}[]{\def\pgf@text@hshift{right}}
+\define@key{pgfbox}{top}[]{\def\pgf@text@vshift{top}}
+\define@key{pgfbox}{bottom}[]{\def\pgf@text@vshift{bottom}}
+\define@key{pgfbox}{base}[]{\def\pgf@text@vshift{base}}
+\define@key{pgfbox}{at}{\pgftransformshift{#1}}
+\define@key{pgfbox}{x}{\pgftransformxshift{#1}}
+\define@key{pgfbox}{y}{\pgftransformyshift{#1}}
+\define@key{pgfbox}{rotate}{\pgftransformrotate{#1}}
+
+\def\pgf@halignleft{}% do nothing
+\def\pgf@haligncenter{\pgftransformxshift{-.5\wd\pgf@hbox}}
+\def\pgf@halignright{\pgftransformxshift{-\wd\pgf@hbox}}%
+\def\pgf@valignbase{}% do nothing
+\def\pgf@valignbottom{\pgftransformyshift{\dp\pgf@hbox}}%
+\def\pgf@valigncenter{\pgftransformyshift{.5\dp\pgf@hbox}\pgftransformyshift{-.5\ht\pgf@hbox}}%
+\def\pgf@valigntop{\pgftransformyshift{-\ht\pgf@hbox}}%
+
+
+% Internal function for creating a hbox.
+\def\pgf@maketext#1{%
+  \def\pgf@@maketextafter{#1}%
+  \setbox\pgf@hbox=\hbox\bgroup%
+    \pgfinterruptpicture%
+      \bgroup%
+        \aftergroup\pgf@collectresetcolor%
+        \let\next=%
+}
+\def\pgf@collectresetcolor{%
+  \@ifnextchar\reset@color%
+  {\reset@color\afterassignment\pgf@collectresetcolor\let\pgf@temp=}%
+  {\pgf@textdone}%
+}
+\def\pgf@textdone{%
+    \endpgfinterruptpicture%
+  \egroup%
+  \pgf@@maketextafter%  
+}
+
+\long\def\pgf@makehbox#1{%
+  \setbox\pgf@hbox=\hbox{{%
+    \pgfinterruptpicture%
+      #1%
+    \endpgfinterruptpicture%
+    }}}
+ 
+
+
+
+% Picture environment
+%
+% Example:
+%
+% \begin{pgfpicture}
+%   \pgfsetendarrow{\pgfarrowto}
+%   \pgfpathmoveto{\pgfpointxy{-0.9}{0.2}}
+%   \pgfpathlineto{\pgfpointxy{0.9}{0.4}}
+%   \pgfusepath{stroke}
+% \end{pgfpicture}
+
+\newif\ifpgfpicture
+
+\def\pgfpicture{%
+  \begingroup%
+  \pgfpicturetrue%
+  \pgf@picmaxx=-16000pt\relax%
+  \pgf@picminx=16000pt\relax%
+  \pgf@picmaxy=-16000pt\relax%
+  \pgf@picminy=16000pt\relax%
+  \pgf@relevantforpicturesizetrue%
+  \pgf@resetpathsizes%
+  \@ifnextchar\bgroup\pgf@oldpicture\pgf@picture}
+\def\pgf@oldpicture#1#2#3#4{%
+  \setlength\pgf@picminx{#1}%
+  \setlength\pgf@picminy{#2}%
+  \setlength\pgf@picmaxx{#3}%
+  \setlength\pgf@picmaxy{#4}%
+  \pgf@relevantforpicturesizefalse%
+  \pgf@picture}
+
+\def\pgf@picture{%
+  \setbox\pgfpic\hbox to0pt\bgroup%
+    \begingroup%
+    \color{.}%
+    \pgfsys@beginpicture%
+      \pgfsys@beginscope%
+        \pgfsetlinewidth{0.4pt}%
+        \pgftransformreset%
+        \pgfsyssoftpath@setcurrentpath\@empty%
+        \begingroup%
+          \let\pgf@setlengthorig=\setlength%
+          \let\pgf@addtolengthorig=\addtolength%
+          \let\pgf@selectfontorig=\selectfont%
+          \let\setlength=\pgf@setlength%
+          \let\addtolength=\pgf@addtolength%
+          \let\selectfont=\pgf@selectfont%
+          \nullfont\spaceskip\z@\xspaceskip\z@%
+          \setbox\pgf@layerbox@main\hbox to0pt\bgroup%
+            \begingroup%
+  }
+\def\endpgfpicture{%
+              % Shift baseline outside:
+              \global\let\pgf@shift@baseline=\pgf@baseline%
+            \endgroup%
+          \egroup%
+          \pgf@insertlayers%
+        \endgroup%    
+      \pgfsys@discardpath\pgfsys@endscope%
+    \pgfsys@endpicture%
+    \endgroup%
+    \hss
+  \egroup%
+  % ok, now let's position the box
+  \ifdim\pgf@picmaxx=-16000pt\relax%
+    % empty picture. make size 0.  
+    \pgf@picmaxx=0pt\relax%
+    \pgf@picminx=0pt\relax%
+    \pgf@picmaxy=0pt\relax%
+    \pgf@picminy=0pt\relax%
+  \fi%
+  \pgfsys@typesetpicturebox\pgfpic%
+  \endgroup%
+}
+
+\def\pgf@insertlayers{%
+  \box\pgf@layerbox@main%
+}
+
+
+% Sets the baseline
+%
+% #1 = baseline
+%
+% Sets the baseline of the picture. Default is the lower border, which
+% is the same as \pgf@picminy
+%
+% Example:
+%
+% \pgfsetbaseline{1cm+2pt}
+
+\def\pgfsetbaseline#1{\def\pgf@baseline{#1}}
+\pgfsetbaseline{\pgf@picminy}
+
+
+
+
+
+% Interrupt path
+%
+% Description:
+%
+% The environment can be used to insert some drawing commands while
+% constructing a path. The drawing commands inside the environment
+% will not interfere with the path being constructed ``outside.''
+% However, you must ward against graphic state changes using a scope. 
+%
+% Example: Draw two parallel lines
+%
+% \pgfmoveto{\pgfpoint{0cm}{0cm}}
+% \begin{pgfinterruptpath}
+%   \pgfmoveto{\pgfpoint{1cm}{0cm}}
+%   \pgfmoveto{\pgfpoint{1cm}{1cm}}
+%   \pgfusepath{stroke}
+% \end{pgfinterruptpath}
+% \pgflineto{\pgfpoint{0cm}{1cm}}
+% \pgfusepath{stroke}
+
+\def\pgfinterruptpath
+{%
+  \begingroup%
+  % save all sorts of things...
+  \edef\pgf@interrupt@savex{\the\pgf@path@lastx}%
+  \edef\pgf@interrupt@savey{\the\pgf@path@lasty}%
+  \pgf@getpathsizes\pgf@interrupt@pathsizes%
+  \pgfsyssoftpath@getcurrentpath\pgf@interrupt@path%
+  \pgfsyssoftpath@setcurrentpath\@empty%
+  \edef\pgfscope@linewidth{\the\pgflinewidth}%
+  \begingroup%
+}
+\def\endpgfinterruptpath
+{%
+  \endgroup%
+  \global\pgflinewidth=\pgfscope@linewidth%
+  \pgfsyssoftpath@setcurrentpath\pgf@interrupt@path%
+  \pgf@setpathsizes\pgf@interrupt@pathsizes%
+  \global\pgf@path@lastx=\pgf@interrupt@savex%
+  \global\pgf@path@lasty=\pgf@interrupt@savey%
+  \endgroup%
+}
+
+
+
+
+% Interrupts a picture
+%
+% Description:
+%
+% This environment interrupts a picture and temporarily returns to
+% normal TeX mode. All sorts of things are saved and restored by this
+% environment.
+%
+% WARNING: Using this environment in conjuction with low level
+% transformations can *strongly* upset the typesetting. Typically, the
+% contents of this environment should have size/height/depth 0pt in
+% the end.
+%
+% WARNING: This environment should only be used inside typesetting a
+% box and this box must in turn be inserted using \pgfqbox.
+%
+% Example: Draw two parallel lines
+%
+% \pgfmoveto{\pgfpoint{0cm}{0cm}}
+% \setbox\mybox=\hbox{
+%    \begin{pgfinterruptpicture}
+%      This is normal text.
+%      \begin{pgfpicture} % a subpicture
+%        \pgfmoveto{\pgfpoint{1cm}{0cm}}
+%        \pgfmoveto{\pgfpoint{1cm}{1cm}}
+%        \pgfusepath{stroke}
+%      \end{pgfpicture}
+%      More text.
+%    \end{pgfinterruptpicture}
+%  }
+% \ht\mybox=0pt
+% \wd\mybox=0pt
+% \dp\mybox=0pt
+% \pgfqbox{\mybox}%
+% \pgfpathlineto{\pgfpoint{0cm}{1cm}}
+% \pgfusepath{stroke}
+
+\def\pgfinterruptpicture
+{%
+  \begingroup%
+  \edef\pgf@interrupt@savemaxx{\the\pgf@picmaxx}%
+  \edef\pgf@interrupt@saveminx{\the\pgf@picminx}%
+  \edef\pgf@interrupt@savemaxy{\the\pgf@picmaxy}%
+  \edef\pgf@interrupt@saveminy{\the\pgf@picminy}%
+  \pgftransformreset%
+  \pgfinterruptpath%
+  \ifx\pgf@setlengthorig\@undefined%
+  \else%
+    \let\setlength\pgf@setlengthorig%
+    \let\addtolength\pgf@addtolengthorig%
+    \let\selectfont\pgf@selectfontorig%
+  \fi%
+  \selectfont%
+  \pgfpicturefalse%
+  \pgf@savelayers%
+}
+\def\endpgfinterruptpicture
+{%
+  \pgf@restorelayers%
+  \endpgfinterruptpath%
+  \global\pgf@picmaxx=\pgf@interrupt@savemaxx%
+  \global\pgf@picmaxy=\pgf@interrupt@savemaxy%
+  \global\pgf@picminx=\pgf@interrupt@saveminx%
+  \global\pgf@picminy=\pgf@interrupt@saveminy%
+  \endgroup%
+}
+
+\let\pgf@savelayers=\relax
+\let\pgf@restorelayers=\relax
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcoreshade.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcoreshade.code.tex
new file mode 100644
index 00000000000..707c1708789
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcoreshade.code.tex
@@ -0,0 +1,409 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfcoreshade.code.tex,v 1.3 2005/07/17 22:34:19 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+%
+% Parsing functions
+%
+\newdimen\pgf@max
+\newcount\pgf@sys@shading@range@num
+\def\pgf@parsefunc#1{%
+  \edef\temp{{#1}}%
+  \expandafter\pgf@convertrgbstring\temp%
+  \edef\temp{{\pgf@rgbconv}}%
+  \expandafter\pgf@@parsefunc\temp}
+\def\pgf@@parsefunc#1{%
+  \let\pgf@bounds=\@empty%
+  \let\pgf@funcs=\@empty%
+  \let\pgf@psfuncs=\@empty%
+  \let\pgf@encode=\@empty%
+  \let\pgf@sys@shading@ranges=\@empty%
+  \pgf@sys@shading@range@num=0\relax%
+  \pgf@parsefirst[#1; ]%
+  \pgf@parselastdom[#1; ]%
+  \pgf@parsemid[#1; ]%
+  \ifx\pgf@bounds\@empty%
+    \edef\pgf@pdfparseddomain{0 1}%
+    \edef\pgf@pdfparsedfunction{\pgf@singlefunc\space}%
+  \else%
+    \edef\pgf@pdfparseddomain{\pgf@doma\space\pgf@domb}%
+    \edef\pgf@pdfparsedfunction{%
+      << /FunctionType 3 /Domain [\pgf@doma\space\pgf@domb] /Functions
+      [\pgf@funcs\space] /Bounds [\pgf@bounds] /Encode [0 1 \pgf@encode]
+      >> }%
+  \fi%
+  \xdef\pgf@psfuncs{\pgf@psfuncs}%
+  }
+\def\pgf@parsefirst[rgb(#1)=(#2,#3,#4)#5]{%
+  \setlength\pgf@x{#1}%
+  \edef\pgf@sys@shading@start@pos{\the\pgf@x}%
+  \pgf@sys@bp@correct\pgf@x%
+  \edef\pgf@doma{\pgf@sys@tonumber{\pgf@x}}%
+  \edef\pgf@prevx{\pgf@sys@tonumber{\pgf@x}}%
+  \pgf@getrgbtuplewithmixin{#2}{#3}{#4}%
+  \edef\pgf@sys@shading@start@rgb{\pgf@sys@rgb}%
+  \let\pgf@sys@prevcolor=\pgf@sys@shading@start@rgb%
+  \let\pgf@sys@prevpos=\pgf@sys@shading@start@pos%
+  \edef\pgf@prevcolor{\pgf@rgb}%
+  \edef\pgf@firstcolor{\pgf@rgb}}
+\def\pgf@parselastdom[rgb(#1)=(#2,#3,#4); {%
+  \@ifnextchar]{%
+    \setlength\pgf@x{#1}%
+    \edef\pgf@sys@shading@end@pos{\the\pgf@x}%
+    \pgf@max=\pgf@x\relax%
+    \pgf@sys@bp@correct\pgf@x%
+    \edef\pgf@domb{\pgf@sys@tonumber{\pgf@x}}%
+    \pgf@getrgbtuplewithmixin{#2}{#3}{#4}%
+    \edef\pgf@sys@shading@end@rgb{\pgf@sys@rgb}%
+    \@gobble}{\pgf@parselastdom[}}
+\def\pgf@parsemid[rgb(#1)=(#2,#3,#4); {\pgf@parserest[}
+\def\pgf@parserest[rgb(#1)=(#2,#3,#4); {%
+  \advance\pgf@sys@shading@range@num by1\relax%
+  \@ifnextchar]{%
+    \pgf@getrgbtuplewithmixin{#2}{#3}{#4}%
+    \edef\pgf@singlefunc{\space%
+      << /FunctionType 2 /Domain [0 1] /C0
+      [\pgf@prevcolor] /C1 [\pgf@rgb] /N 1 >> }%
+    \edef\pgf@funcs{\pgf@funcs\space%
+      << /FunctionType 2 /Domain [\pgf@doma\space\pgf@domb] /C0
+      [\pgf@prevcolor] /C1 [\pgf@rgb] /N 1 >> }%
+    \edef\pgf@psfuncs{\pgf@prevx\space \pgf@rgb\space \pgf@prevcolor\space pgfshade \pgf@psfuncs}%
+    \setlength\pgf@x{#1}%
+    \edef\pgf@sys@shading@ranges{\pgf@sys@shading@ranges{{\pgf@sys@prevpos}{\the\pgf@x}{\pgf@sys@prevcolor}{\pgf@sys@rgb}}}%
+    \edef\pgf@sys@prevpos{\the\pgf@x}%
+    \let\pgf@sys@prevcolor=\pgf@sys@rgb%
+    \@gobble}{%
+    \setlength\pgf@x{#1}%
+    \pgf@getrgbtuplewithmixin{#2}{#3}{#4}%
+    \edef\pgf@sys@shading@ranges{\pgf@sys@shading@ranges{{\pgf@sys@prevpos}{\the\pgf@x}{\pgf@sys@prevcolor}{\pgf@sys@rgb}}}%
+    \edef\pgf@sys@prevpos{\the\pgf@x}%
+    \let\pgf@sys@prevcolor=\pgf@sys@rgb%
+    \edef\pgf@psfuncs{\pgf@prevx\space \pgf@rgb\space \pgf@prevcolor\space pgfshade \pgf@psfuncs}%
+    \pgf@sys@bp@correct\pgf@x%
+    \edef\pgf@prevx{\pgf@sys@tonumber{\pgf@x}}%
+    \edef\pgf@bounds{\pgf@bounds\space\pgf@sys@tonumber{\pgf@x}}%
+    \edef\pgf@encode{\pgf@encode\space0 1}%
+    \edef\pgf@singlefunc{\space%
+      << /FunctionType 2 /Domain [0 1] /C0
+      [\pgf@prevcolor] /C1 [\pgf@rgb] /N 1 >> }% 
+    \edef\pgf@funcs{\pgf@funcs\space%
+      << /FunctionType 2 /Domain [\pgf@doma\space\pgf@domb] /C0
+      [\pgf@prevcolor] /C1 [\pgf@rgb] /N 1 >> }% 
+    \edef\pgf@prevcolor{\pgf@rgb}%
+    \pgf@parserest[}}
+
+\def\pgf@getrgbtuplewithmixin#1#2#3{%
+  \definecolor{pgfshadetemp}{rgb}{#1,#2,#3}%
+  \@ifundefined{applycolormixins}{}{\applycolormixins{pgfshadetemp}}%
+  \extractcolorspec{pgfshadetemp}{\pgf@tempcolor}%
+  \expandafter\convertcolorspec\pgf@tempcolor{rgb}{\pgf@rgbcolor}%
+  \expandafter\pgf@getrgb@@\pgf@rgbcolor!}
+\def\pgf@getrgb@@#1,#2,#3!{%
+  \def\pgf@rgb{#1 #2 #3}%
+  \def\pgf@sys@rgb{{#1}{#2}{#3}}%
+}
+
+
+\def\pgf@convertrgbstring#1{%
+  \def\pgf@rgbconv{}%
+  \pgf@converttorgb#1]%
+  }
+\def\pgf@converttorgb{%
+  \@ifnextchar]{\@gobble}%done!
+  {%
+    \@ifnextchar;{\pgf@grabsemicolor}%
+    {%
+      \@ifnextchar r{\pgf@grabrgb}%
+      {%
+        \@ifnextchar g{\pgf@grabgray}%
+        {%
+          \@ifnextchar c{\pgf@grabcolor}%
+          {\PackageError{pgfshade}{Illformed shading
+              specification}{}\pgf@converttorgb}%
+        }%
+      }%
+    }%
+  }%
+}
+\def\pgf@grabsemicolor;{%
+  \edef\pgf@rgbconv{\pgf@rgbconv; }\pgf@converttorgb}
+\def\pgf@grabrgb rgb(#1)=(#2,#3,#4){%
+  \edef\pgf@rgbconv{\pgf@rgbconv rgb(#1)=(#2,#3,#4)}\pgf@converttorgb}
+\def\pgf@grabgray gray(#1)=(#2){%
+  \edef\pgf@rgbconv{\pgf@rgbconv rgb(#1)=(#2,#2,#2)}\pgf@converttorgb}
+\def\pgf@grabcolor color(#1)=(#2){%
+  \colorlet{pgf@tempcol}{#2}%
+  \extractcolorspec{pgf@tempcol}{\pgf@tempcolor}%
+  \expandafter\convertcolorspec\pgf@tempcolor{rgb}{\pgf@rgbcolor}%
+  \expandafter\pgf@convgetrgb@\expandafter{\pgf@rgbcolor}{#1}%
+}
+\def\pgf@convgetrgb@#1#2{%
+  \edef\pgf@rgbconv{\pgf@rgbconv rgb(#2)=(#1)}\pgf@converttorgb}
+
+
+
+
+% Declares a horizontal shading for later use. The shading is a
+% horizontal bar that changes its color.
+%
+% #1 = name of the shading for later use
+% #2 = height of the shading
+% #3 = color specification in the following format: A list of colors
+%      that the bar should have at certain points. If the bar should
+%      be red at 1cm, this is specified as
+%      "rgb(1cm)=(1,0,0)". Multiple specifications are separated by a
+%      semicolon and a space. At least two specifications must be
+%      given. The specified positions must be given in increasing
+%      order. 
+%
+% Example:
+%
+% \pgfdeclarehorizontalshading{redtogreentoblue}{1cm}{%
+%   rgb(0cm)=(1,0,0); % red
+%   rgb(1cm)=(0,1,0); % green
+%   rgb(2cm)=(0,0,1)}
+%
+% \begin{document}
+%   The following bar is 2cm long: \pgfuseshading{redtogreentoblue}.
+% \end{document}
+
+\def\pgfdeclarehorizontalshading{\@ifnextchar[\pgf@declarehorizontalshading{\pgf@declarehorizontalshading[]}}%
+\def\pgf@declarehorizontalshading[#1]#2#3#4{%
+  \expandafter\def\csname pgf@deps@pgfshading#2!\endcsname{#1}%
+  \expandafter\ifx\csname pgf@deps@pgfshading#2!\endcsname\@empty%
+    \pgfsys@horishading{#2}{#3}{#4}%
+  \else%
+    \expandafter\def\csname pgf@func@pgfshading#2!\endcsname{\pgfsys@horishading}%
+    \expandafter\def\csname pgf@args@pgfshading#2!\endcsname{{#3}{#4}}%
+    \expandafter\let\csname @pgfshading#2!\endcsname=\@empty%
+  \fi}
+
+
+% Declares a vertical shading for later use. 
+%
+% #1 = name of the shading for later use
+% #2 = height of the shading
+% #3 = color specification 
+%
+% Example:
+%
+% \pgfdeclareverticalshading{redtogreentoblue}{1cm}{%
+%   rgb(0cm)=(1,0,0); % red
+%   rgb(1cm)=(0,1,0); % green
+%   rgb(2cm)=(0,0,1)}
+%
+% \begin{document}
+%   The following bar is 2cm high: \pgfuseshading{redtogreentoblue}.
+% \end{document}
+
+\def\pgfdeclareverticalshading{\@ifnextchar[\pgf@declareverticalshading{\pgf@declareverticalshading[]}}%
+\def\pgf@declareverticalshading[#1]#2#3#4{%
+  \expandafter\def\csname pgf@deps@pgfshading#2!\endcsname{#1}%
+  \expandafter\ifx\csname pgf@deps@pgfshading#2!\endcsname\@empty%
+    \pgfsys@vertshading{#2}{#3}{#4}%
+  \else%
+    \expandafter\def\csname pgf@func@pgfshading#2!\endcsname{\pgfsys@vertshading}%
+    \expandafter\def\csname pgf@args@pgfshading#2!\endcsname{{#3}{#4}}%
+    \expandafter\let\csname @pgfshading#2!\endcsname=\@empty%
+  \fi}
+
+
+% Declares a radial shading for later use. 
+%
+% #1 = name of the shading for later use
+% #2 = center of inner circle
+% #3 = color specification 
+%
+% Description:
+%
+% A radial shading creates a smooth color transition between two
+% circles. The center of the inner circle is at the give position. Its
+% radius is the start of the color specification. The
+% center of the outer circle is at the center of the whole shading,
+% whose radius is the end of the color specification. For example,
+% suppose the color specification is "rgb(1cm)=(1,1,1); rgb(2cm)=(0,0,0)".  
+% Then the shading would be 4cm times 4cm large. The inner circle would
+% have diameter 1cm and the outer circle would have diameter 2cm. The
+% outer circle would be centered in the middle of the shading, whereas
+% the outer circle would be centered at the given position.
+%
+% Example:
+%
+% \pgfdeclareradialshading{redtogreentoblue}{\pgfpoint{2cm}{2cm}}{%
+%   rgb(10pt)=(1,0,0); % red
+%   rgb(2cm)=(0,1,0); % green
+%   rgb(3cm)=(0,0,1)}
+%
+% \begin{document}
+%   The following ball has diameter 3cm: \pgfuseshading{redtogreentoblue}.
+% \end{document}
+
+\def\pgfdeclareradialshading{\@ifnextchar[\pgf@declareradialshading{\pgf@declareradialshading[]}}%
+\def\pgf@declareradialshading[#1]#2#3#4{%
+  \expandafter\def\csname pgf@deps@pgfshading#2!\endcsname{#1}%
+  \expandafter\ifx\csname pgf@deps@pgfshading#2!\endcsname\@empty%
+    \pgfsys@radialshading{#2}{#3}{#4}%
+  \else%
+    \expandafter\def\csname pgf@func@pgfshading#2!\endcsname{\pgfsys@radialshading}%
+    \expandafter\def\csname pgf@args@pgfshading#2!\endcsname{{#3}{#4}}%
+    \expandafter\let\csname @pgfshading#2!\endcsname=\@empty%
+  \fi}
+  
+
+% Inserts a box into the text that contains a previously defined
+% shading. 
+%
+% #1 = Name of a shading
+%
+% Example:
+%
+% \pgfuseshading{redtogreentoblue}
+
+\def\pgfuseshading#1{%
+  \edef\pgf@shadingname{@pgfshading#1}%
+  \pgf@tryextensions{\pgf@shadingname}{\pgfalternateextension}%
+  \expandafter\@ifundefined\expandafter{\pgf@shadingname}%
+  {\PackageError{pgfshade}{Undefined shading "#1"}{}}%
+  {%
+    {%
+      \globalcolorsfalse%
+      \def\pgf@shade@adds{}%
+      \@ifundefined{pgf@deps\pgf@shadingname}%
+      {}%
+      {%
+        \edef\@list{\csname pgf@deps\pgf@shadingname\endcsname}%
+        \@for\@temp:=\@list\do{%
+          {%
+            \@ifundefined{applycolormixins}{}{\applycolormixins{\@temp}}%
+            \extractcolorspec{\@temp}{\pgf@tempcolor}%
+            \expandafter\convertcolorspec\pgf@tempcolor{rgb}{\pgf@rgbcolor}%
+            \xdef\pgf@shade@adds{\pgf@shade@adds,\pgf@rgbcolor}%
+          }%
+        }%
+      }%
+      \expandafter\pgf@strip@shadename\pgf@shadingname!!%
+      \@ifundefined{@pgfshading\pgf@basename\pgf@shade@adds!}%
+      {%
+        {%
+          \expandafter\def\expandafter\@temp\expandafter{\csname pgf@func\pgf@shadingname\endcsname}%
+          \edef\@args{{\pgf@basename\pgf@shade@adds}}%
+          \expandafter\expandafter\expandafter\def%
+          \expandafter\expandafter\expandafter\@@args%
+          \expandafter\expandafter\expandafter{\csname pgf@args\pgf@shadingname\endcsname}%
+          \expandafter\expandafter\expandafter\@temp\expandafter\@args\@@args%
+          %
+        }%
+      }%
+      {}%
+      \pgf@invokeshading{\csname @pgfshading\pgf@basename\pgf@shade@adds!\endcsname}%
+    }%
+  }%
+}
+
+\def\pgf@strip@shadename @pgfshading#1!!!{\def\pgf@basename{#1}}
+
+\def\pgf@invokeshading#1{%
+  \ifpgfpicture%
+    \pgfsys@shadinginsidepgfpicture{#1}%
+  \else%
+    \pgfsys@shadingoutsidepgfpicture{#1}%  
+  \fi%
+}
+
+
+% Create an alias name for a shading
+%
+% #1 = name of the alias
+% #2 = name of the original
+%
+% Example:
+%
+% \pgfaliasshading{shading!25}{shadingshaded}
+
+\def\pgfaliasshading#1#2{%
+  \expandafter\let\expandafter\pgf@temp\expandafter=\csname @pgfshading#2!\endcsname%
+  \expandafter\let\csname @pgfshading#1!\endcsname=\pgf@temp%
+  \expandafter\let\expandafter\pgf@temp\expandafter=\csname pgf@deps@pgfshading#2!\endcsname%
+  \expandafter\let\csname pgf@deps@pgfshading#1!\endcsname=\pgf@temp%
+  \expandafter\let\expandafter\pgf@temp\expandafter=\csname pgf@func@pgfshading#2!\endcsname%
+  \expandafter\let\csname pgf@func@pgfshading#1!\endcsname=\pgf@temp%
+  \expandafter\let\expandafter\pgf@temp\expandafter=\csname pgf@args@pgfshading#2!\endcsname%
+  \expandafter\let\csname pgf@args@pgfshading#1!\endcsname=\pgf@temp%
+}
+
+
+
+
+% Shades the current path, but does not discard it.
+%
+% #1 - a shading (see below)
+% #2 - an angle
+%
+% Description:
+%
+% \pgfshadepath  ``tries'' to fill the
+% current path with a shading. The shading's original size should
+% completely cover the area between (0,0) and (100bp,100bp). The
+% shading will be rotated by #2 and then rescaled so that it
+% completely covers the path. Then the path will be used (locally) for
+% clipping and the shading is drawn.
+%
+% After all this, the path can still be used for the normal
+% stroking/clipping operations.
+%
+% The shading is rotated around its middle. If no rotation occurs, the
+% lower left corner of the path will lie on (25bp, 25bp), the upper
+% right corner on (75bp, 75bp).
+%
+% Example:
+%
+% \pgfdeclareverticalshading{myshading}{100bp}{color(0pt)=(red); color(100bp)=(green)}
+%
+% \pgfpathmoveto{\pgforigin}
+% \pgfpathlineto{\pgfxy(1,0)}
+% \pgfpathlineto{\pgfxy(1,1)}
+% \pgfshadepath{myshading}{0}
+% \pgfusepath{stroke}
+
+\def\pgfshadepath#1#2{%
+  \ifdim\pgf@pathminx=16000pt%
+    \PackageWarning{pgfshade}{No path specified that can be filled}%
+  \else%
+    \begingroup%  
+      \pgfsys@beginscope%
+        % Calculate center:
+        \pgf@xb=.5\pgf@pathmaxx%
+        \advance\pgf@xb by.5\pgf@pathminx%
+        \pgf@yb=.5\pgf@pathmaxy%
+        \advance\pgf@yb by.5\pgf@pathminy%
+        % Calculate scaling:
+        \pgf@xc=\pgf@pathmaxx%
+        \advance\pgf@xc by-\pgf@pathminx%
+        \pgf@yc=\pgf@pathmaxy%
+        \advance\pgf@yc by-\pgf@pathminy%
+        \pgf@xc=.02\pgf@xc%
+        \pgf@yc=.02\pgf@yc%
+        \pgfsyssoftpath@invokecurrentpath%
+        \pgfsys@clipnext%
+        \pgfsys@discardpath%
+        % Compute new transformation matrix:
+        \pgf@process{\pgfsincos{#2}}%
+        \pgf@xa=-\pgf@x%
+        \pgfsys@transformcm{1}{0}{0}{1}{\pgf@xb}{\pgf@yb}%
+        \pgfsys@transformcm%
+        {\pgf@sys@tonumber{\pgf@xc}}{0}%
+        {0}{\pgf@sys@tonumber{\pgf@yc}}{0pt}{0pt}%
+        \pgfsys@transformcm%
+        {\pgf@sys@tonumber{\pgf@y}}{\pgf@sys@tonumber{\pgf@x}}%
+        {\pgf@sys@tonumber{\pgf@xa}}{\pgf@sys@tonumber{\pgf@y}}{0pt}{0pt}%
+        \pgfuseshading{#1}%
+      \pgfsys@endscope%
+    \endgroup%
+  \fi%
+}
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcoretransformations.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcoretransformations.code.tex
new file mode 100644
index 00000000000..b9c1e51cff0
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcoretransformations.code.tex
@@ -0,0 +1,540 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfcoretransformations.code.tex,v 1.1.1.1 2005/06/29 12:14:04 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+% Position transformations
+
+\newdimen\pgf@pt@x
+\newdimen\pgf@pt@y
+
+\newdimen\pgf@pt@temp
+
+\newif\ifpgf@pt@identity
+\pgf@pt@identitytrue
+
+\def\pgf@pt@aa{1.0} \def\pgf@pt@ab{0.0}
+\def\pgf@pt@ba{0.0} \def\pgf@pt@bb{1.0}
+
+
+
+% Store the current transformation matrix in a macro.
+%
+% #1 = macro name
+%
+% Example:
+%
+% \pgfgettransform\mytransform
+
+\def\pgfgettransform#1{%
+  \edef#1{{\pgf@pt@aa}{\pgf@pt@ab}{\pgf@pt@ba}{\pgf@pt@bb}{\the\pgf@pt@x}{\the\pgf@pt@y}}
+}
+
+
+% Restore the current transformation matrix from a macro.
+%
+% #1 = macro name, previously used with \pgfgettransform
+%
+% Example:
+%
+% \pgfsettransform\mytransform
+
+\def\pgfsettransform#1{%
+  \edef\pgf@temp{#1}%
+  \expandafter\pgf@settransform\pgf@temp%
+}
+\def\pgf@settransform#1#2#3#4#5#6{%
+  \def\pgf@pt@aa{#1}%
+  \def\pgf@pt@ab{#2}%
+  \def\pgf@pt@ba{#3}%
+  \def\pgf@pt@bb{#4}%
+  \pgf@pt@x=#5%
+  \pgf@pt@y=#6%
+  \edef\pgf@idtest{#1,#2,#3,#4}%
+  \ifx\pgf@idtest\pgf@idmatrixtext%
+    \pgf@pt@identitytrue%
+  \else%
+    \pgf@pt@identityfalse%
+  \fi%
+}
+
+\def\pgf@idmatrixtext{1.0,0.0,0.0,1.0}
+
+
+% Transformation command
+%
+% #1 = x dimension
+% #2 = y dimension
+%
+% Description:
+%
+% Applies the pgfs transformation matrix to the point (#1,#2). The
+% result is once more stored in the point.
+%
+%
+% Example:
+%
+% \pgf@pos@transform{\pgf@x}{\pgf@y}
+
+\def\pgf@pos@transform#1#2{%
+  \ifpgf@pt@identity%
+  \else%
+    \pgf@pt@temp=#1%
+    #1=\pgf@pt@aa#1%
+    \advance#1 by\pgf@pt@ba#2%
+    #2=\pgf@pt@bb#2%
+    \advance#2 by\pgf@pt@ab\pgf@pt@temp%
+  \fi%
+  \advance#1 by\pgf@pt@x%
+  \advance#2 by\pgf@pt@y%
+}
+
+
+% Invert the current transformation matrix
+%
+% Description:
+%
+% This command replaces the current transformation matrix by its
+% inverse. The inversion is not very exact if the matrix is nearly
+% singular. 
+%
+% Example:
+%
+% \pgftransforminvert
+
+\def\pgftransforminvert{%
+  % First, invert the shift. That's easy
+  \pgf@pt@x=-\pgf@pt@x
+  \pgf@pt@y=-\pgf@pt@y
+  \ifpgf@pt@identity%
+  \else%
+    % Sigh. Have to calculate the inverse of the matrix.
+    % Start with determinant
+    % Matrix = (aa ab
+    %           ba bb)
+    {%
+      \@tempdima=\pgf@pt@aa pt%
+      \@tempdima=\pgf@pt@bb\@tempdima% aa * bb
+      \@tempdimb=\pgf@pt@ba pt%
+      \@tempdimb=\pgf@pt@ab\@tempdimb% ba * ab
+      \advance\@tempdima by -\@tempdimb% aa*bb - ba*ab
+      % Invert
+      \@tempdima=.125\@tempdima%
+      \c@pgf@counta=\@tempdima\relax% 8192*determinant
+      \@tempdima=8192pt%
+      \divide\@tempdima by\c@pgf@counta%
+      \pgf@x=\pgf@pt@bb\@tempdima% bb/(det A)
+      \xdef\pgf@new@pt@aa{\pgf@sys@tonumber{\pgf@x}}%
+      \pgf@x=\pgf@pt@aa\@tempdima% aa/(det A)
+      \xdef\pgf@new@pt@bb{\pgf@sys@tonumber{\pgf@x}}%
+      \@tempdima=-\@tempdima%
+      \pgf@x=\pgf@pt@ba\@tempdima% -ba/(det A)
+      \xdef\pgf@new@pt@ba{\pgf@sys@tonumber{\pgf@x}}%
+      \pgf@x=\pgf@pt@ab\@tempdima% -ab/(det A)
+      \xdef\pgf@new@pt@ab{\pgf@sys@tonumber{\pgf@x}}%
+    }%
+    \expandafter\def\expandafter\pgf@pt@aa\expandafter{\pgf@new@pt@aa}%
+    \expandafter\def\expandafter\pgf@pt@ab\expandafter{\pgf@new@pt@ab}%
+    \expandafter\def\expandafter\pgf@pt@ba\expandafter{\pgf@new@pt@ba}%
+    \expandafter\def\expandafter\pgf@pt@bb\expandafter{\pgf@new@pt@bb}%
+    \pgf@pt@temp=\pgf@pt@x%
+    \pgf@pt@x=\pgf@pt@aa\pgf@pt@x%
+    \advance\pgf@pt@x by\pgf@pt@ba\pgf@pt@y%
+    \pgf@pt@y=\pgf@pt@bb\pgf@pt@y%
+    \advance\pgf@pt@y by\pgf@pt@ab\pgf@pt@temp%
+  \fi%
+}
+
+
+
+
+% PGF-Level concatenation of the transformation matrix with a given
+% matrix. 
+%
+% #1 - #5 = a concatenation matrix (see pdf spec). Entry #5 is a
+%           translation point.
+%
+% Description:
+%
+% All coordinates given to subsequent path construction commands will
+% be transformed additionally by the given transformation matrix. If
+% the command is followed by a 6th argument, the transformation is
+% only applied to this argument.
+%
+%
+% Example:
+%
+% \pgftransformcm{1}{0}{0}{1}{\pgfpoint{100pt}{0pt}} % 100pt to the right.
+%
+% \pgftransformcm{2}{0}{0}{2}{\pgfpointorigin} % double in in size
+% \pgfpathmoveto{\pgfpoint{0cm}{0cm}}
+% \pgfpathlineto{\pgflineto{1cm}{1cm}} % actually 2cm/2cm
+
+\def\pgftransformcm#1#2#3#4#5{%
+  \edef\pgf@marshal{\noexpand\pgf@transformcm{#1}{#2}{#3}{#4}}%
+  \pgf@marshal{#5}%
+}
+\def\pgf@transformcm#1#2#3#4#5{%
+  {%
+    \pgf@process{#5}%
+    \pgf@xc=\pgf@x%
+    \pgf@yc=\pgf@y%
+    %
+    \pgf@x=#1pt%
+    \pgf@y=#2pt%
+    %
+    \pgf@xa=\pgf@pt@aa\pgf@x%
+    \advance\pgf@xa by \pgf@pt@ba\pgf@y%
+    %
+    \pgf@ya=\pgf@pt@ab\pgf@x%
+    \advance\pgf@ya by \pgf@pt@bb\pgf@y%
+    %
+    \pgf@x=#3pt%
+    \pgf@y=#4pt%
+    %
+    \pgf@xb=\pgf@pt@aa\pgf@x%
+    \advance\pgf@xb by \pgf@pt@ba\pgf@y%
+    %
+    \pgf@yb=\pgf@pt@ab\pgf@x%
+    \advance\pgf@yb by \pgf@pt@bb\pgf@y%
+    %
+    \pgf@x=\pgf@pt@aa\pgf@xc%
+    \advance\pgf@x by\pgf@pt@ba\pgf@yc%
+    \advance\pgf@x by\pgf@pt@x%
+    %
+    \pgf@y=\pgf@pt@ab\pgf@xc%
+    \advance\pgf@y by\pgf@pt@bb\pgf@yc%
+    \advance\pgf@y by\pgf@pt@y%
+    %
+    \global\pgf@x=\pgf@x%
+    \global\pgf@y=\pgf@y%
+    \xdef\pgf@tempaa{\pgf@sys@tonumber{\pgf@xa}}%
+    \xdef\pgf@tempab{\pgf@sys@tonumber{\pgf@ya}}%
+    \xdef\pgf@tempba{\pgf@sys@tonumber{\pgf@xb}}%
+    \xdef\pgf@tempbb{\pgf@sys@tonumber{\pgf@yb}}%
+  }%
+  \pgf@pt@x=\pgf@x%
+  \pgf@pt@y=\pgf@y%
+  \let\pgf@pt@aa=\pgf@tempaa%
+  \let\pgf@pt@ba=\pgf@tempba%
+  \let\pgf@pt@ab=\pgf@tempab%
+  \let\pgf@pt@bb=\pgf@tempbb%
+  \def\pgf@trans@idtest{#1,#2,#3,#4}%
+  \ifx\pgf@trans@idtest\pgf@trans@idtext%
+  \else%
+    \pgf@pt@identityfalse%
+  \fi%
+}
+\def\pgf@trans@idtext{1.0,0,0,1.0}
+
+
+
+
+
+
+% Undo all transformations
+%
+% Example:
+%
+% \pgftansformreset
+
+\def\pgftransformreset{%
+  \pgf@pt@x=0pt%
+  \pgf@pt@y=0pt%
+  \def\pgf@pt@aa{1.0}%
+  \def\pgf@pt@ba{0.0}%
+  \def\pgf@pt@ab{0.0}%
+  \def\pgf@pt@bb{1.0}%
+  \pgf@pt@identitytrue%
+}
+
+
+% Undo all slanting/rotation, but not translations
+%
+% Example:
+%
+% \pgftansformreset
+
+\def\pgftransformresetnontranslations{%
+  \def\pgf@pt@aa{1.0}%
+  \def\pgf@pt@ba{0.0}%
+  \def\pgf@pt@ab{0.0}%
+  \def\pgf@pt@bb{1.0}%
+  \pgf@pt@identitytrue%
+}
+
+
+
+
+% Shifting command and environment
+%
+% #1 = vector by which all subsequent points should be moved.
+%
+% Example:
+%
+% \pgftansformshift{\pgfpoint{1cm}{1cm}}
+
+\def\pgftransformshift#1{\pgftransformcm{1.0}{0}{0}{1.0}{#1}}
+\def\pgftransformxshift#1{\pgftransformcm{1.0}{0}{0}{1.0}{\pgfpoint{#1}{0pt}}}
+\def\pgftransformyshift#1{\pgftransformcm{1.0}{0}{0}{1.0}{\pgfpoint{0pt}{#1}}}
+
+
+
+
+% Scaling commands
+%
+% #1 = scaling for all subsequent points.
+%
+% Example:
+%
+% \pgftransformscale{2}
+% \pgftransformxscale{2}
+% \pgftransformyscale{2}
+
+\def\pgftransformscale#1{\pgftransformcm{#1}{0}{0}{#1}{\pgfpointorigin}}
+\def\pgftransformxscale#1{\pgftransformcm{#1}{0}{0}{1.0}{\pgfpointorigin}}
+\def\pgftransformyscale#1{\pgftransformcm{1.0}{0}{0}{#1}{\pgfpointorigin}}
+
+
+
+% Slanting commands
+%
+% #1 = slanting in x-direction. 1 means 45 degrees.
+%
+% Example:
+%
+% \pgftransformxslant{2}
+% \pgftransformyslant{2}
+
+\def\pgftransformxslant#1{\pgftransformcm{1.0}{0}{#1}{1.0}{\pgfpointorigin}}
+\def\pgftransformyslant#1{\pgftransformcm{1.0}{#1}{0}{1.0}{\pgfpointorigin}}
+
+
+
+% Rotation commands
+%
+% #1 = degrees for the rotation
+%
+% Example:
+%
+% \pgftransformrotate{30}
+
+\def\pgftransformrotate#1{%
+  \pgfsincos{#1}%
+  \pgf@xa=-\pgf@x%
+  \pgftransformcm%
+  {\pgf@sys@tonumber{\pgf@y}}{\pgf@sys@tonumber{\pgf@x}}%
+  {\pgf@sys@tonumber{\pgf@xa}}{\pgf@sys@tonumber{\pgf@y}}{\pgfpointorigin}%
+}
+
+
+
+% The following two if's have the following effect:
+%
+% \ifpgfslopedattime decides whether the coordinate system of an
+% xxxattime transformation command should be rotated such that text
+% drawn on the line should be tangent to the line
+%
+% \ifpgfresetnontranslationattime decides whether the coordinate
+% system of an xxxattime transformation command should be reset
+% (concerning the non-translations) before a possible rotation is
+% applied. This is useful, for example, if the main coordinate system
+% is scaled by, say, a factor of 2 and you do not want that to apply
+% to the text, but you do want the rotation to applyu.
+
+\newif\ifpgfslopedattime
+\newif\ifpgfresetnontranslationattime
+
+
+% Transform to the coordinate system of a point on a line
+%
+% #1 = a time fraction of line where to put the label, where 0 means start,
+%      1 means end, and for example 0.5 means the middle.
+% #2 = start of line
+% #3 = end of line
+%
+% Example:
+%
+% {
+%   \pgftransformlineattime{.5}{\pgfxy(0,0)}{\pgfxy(3,2)}
+%   \pgftext{Hi!}
+% }
+%
+% {
+%   \pgftransformlineattime{.75}{\pgfxy(0,0)}{\pgfxy(3,2)}
+%   \pgftransformresetnontranslations
+%   \pgftext{Hi!}
+% }
+%
+\def\pgftransformlineattime#1#2#3{%
+  \pgftransformshift{\pgfpointlineattime{#1}{#2}{#3}}%
+  \ifpgfresetnontranslationattime%
+    \pgftransformresetnontranslations%
+  \fi%
+  \ifpgfslopedattime%
+    \pgf@process{#2}%
+    \pgf@xa=\pgf@x% xb/yb = start point
+    \pgf@ya=\pgf@y%
+    \pgf@process{#3}%
+    \advance\pgf@x by-\pgf@xa%
+    \advance\pgf@y by-\pgf@ya%
+    \ifdim\pgf@x<0pt%
+      \pgf@x=-\pgf@x%
+      \pgf@y=-\pgf@y%
+    \fi%
+    \pgfpointnormalised{}% x/y = normalised vector
+    \pgf@ya=-\pgf@y%
+    \pgftransformcm%
+    {\pgf@sys@tonumber{\pgf@x}}{\pgf@sys@tonumber{\pgf@y}}%
+    {\pgf@sys@tonumber{\pgf@ya}}{\pgf@sys@tonumber{\pgf@x}}{\pgfpointorigin}%
+  \fi%
+}
+
+
+
+
+% Transform to the coordinate system of a point on a curve
+%
+% #1 = a time fraction of line where to put the label, where 0 means start,
+%      1 means end, and for example 0.5 means the middle.
+% #2 = start of line
+% #3 = first control
+% #4 = second control
+% #5 = end of line
+%
+% Example:
+%
+% {
+%   \pgftransformlabel{.5}{\pgfxy(0,0)}{\pgfxy(3,2)}
+%   \pgftext{Hi!}
+% }
+%
+% {
+%   \pgftransformlabel{.75}{\pgfxy(0,0)}{\pgfxy(3,2)}
+%   \pgftransformresetnontranslations
+%   \pgftext{Hi!}
+% }
+%
+\def\pgftransformcurveattime#1#2#3#4#5{%
+  \pgfpointcurveattime{#1}{#2}{#3}{#4}{#5}%
+  \pgftransformshift{\pgfpoint{\pgf@x}{\pgf@y}}%
+  \ifpgfresetnontranslationattime%
+    \pgftransformresetnontranslations%
+  \fi%
+  \ifpgfslopedattime%
+    \pgf@x=\pgf@xb%
+    \pgf@y=\pgf@yb%
+    \advance\pgf@x by-\pgf@xa%
+    \advance\pgf@y by-\pgf@ya%
+    \ifdim\pgf@x<0pt%
+      \pgf@x=-\pgf@x%
+      \pgf@y=-\pgf@y%
+    \fi%
+    \pgfpointnormalised{}% x/y = normalised vector
+    \pgf@ya=-\pgf@y%
+    \pgftransformcm%
+    {\pgf@sys@tonumber{\pgf@x}}{\pgf@sys@tonumber{\pgf@y}}%
+    {\pgf@sys@tonumber{\pgf@ya}}{\pgf@sys@tonumber{\pgf@x}}{\pgfpointorigin}%
+  \fi%
+}
+
+
+
+
+
+% Transform to the coordinate system of an arrow at the end of the
+% line going from point #1 to point #2 with the correct rotation.
+%
+% #1 = a start point an (invisible) line
+% #2 = an end point an (invisible) line
+%
+% Example:
+%
+% \pgftransformarrow{\pgfpointorigin}{\pgfpoint{1cm}{0cm}}
+
+\def\pgftransformarrow#1#2{%
+  \pgftransformshift{#2}%
+  \pgf@process{#2}%
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \pgf@process{#1}%
+  \advance\pgf@xa by-\pgf@x%
+  \advance\pgf@ya by-\pgf@y%
+  \pgf@x=\pgf@xa%
+  \pgf@y=\pgf@ya%
+  \pgfpointnormalised{}%
+  \pgf@ya=-\pgf@y%
+  \pgftransformcm%
+  {\pgf@sys@tonumber{\pgf@x}}{\pgf@sys@tonumber{\pgf@y}}%
+  {\pgf@sys@tonumber{\pgf@ya}}{\pgf@sys@tonumber{\pgf@x}}{\pgfpoint{0pt}{0pt}}%
+}
+
+
+
+% Low-level transformations
+
+% Causes the current high-level transformation command to be applied
+% to the low-level.
+%
+% Description:
+%
+% All subsequent drawing will be transformed additionally by the
+% current high-level transformation. Thus, the high-level
+% transformation becomes the low-level transformation. The high-level
+% transformation is reset at this point.
+
+\def\pgflowlevelsynccm{%
+  \pgfsys@transformcm%
+  {\pgf@pt@aa}{\pgf@pt@ab}%
+  {\pgf@pt@ba}{\pgf@pt@bb}%
+  {\pgf@pt@x}{\pgf@pt@y}%
+  \pgftransformreset%
+  \pgf@relevantforpicturesizefalse%
+}  
+
+
+
+% Causes a transformation command to be applied to the ``lowlevel''
+% transformation matrix. 
+%
+% #1 - a high-level transformation command
+%
+% Description:
+%
+% All subsequent drawing will be transformed additionally by the given
+% transformation matrix. Note that PGF will no longer be able to
+% ``keep track'' of the coordinates. Also, transformations are applied
+% to *everything*, including line thickness and line endings. Most
+% often, this is not desirable.
+%
+% Example:
+%
+% \pgflowlevel{\pgftransformcm{1}{0}{0}{1}{\pgfpoint{100pt}{0pt}}} % 100bp to the right.
+%
+% \begin{pgflowlevelscope}{\pgftransformcm{2}{0}{0}{2}{\pgfpointorigin}} % double in in size
+%  \pgfmoveto{\pgfpoint{0cm}{0cm}}
+%  \pgflineto{\pgflineto{1cm}{1cm}} % actually 2cm/2cm
+% \end{pgflowlevelscope}
+
+\def\pgflowlevel#1{%
+  {%
+    \pgftransformreset%
+    #1%
+    \pgflowlevelsynccm%
+  }%
+  \pgf@relevantforpicturesizefalse%
+}
+
+\def\pgflowlevelscope#1{\pgfscope\pgflowlevel{#1}}
+\def\endpgflowlevelscope{\endpgfscope}
+
+\long\def\pgflowlevelobj#1#2{\pgfscope{\pgflowlevel{#1}#2}\endpgfscope}
+
+
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/frontendlayer/tikz.code.tex b/Master/texmf-dist/tex/generic/pgf/frontendlayer/tikz.code.tex
new file mode 100644
index 00000000000..0002a30507b
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/frontendlayer/tikz.code.tex
@@ -0,0 +1,2677 @@
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/frontendlayer/tikz.code.tex,v 1.32 2005/10/18 08:03:44 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+\newdimen\tikz@lastx
+\newdimen\tikz@lasty
+\newdimen\tikz@lastxsaved
+\newdimen\tikz@lastysaved
+
+\newdimen\tikzleveldistance
+\newdimen\tikzsiblingdistance
+
+\newbox\tikz@figbox
+\newbox\tikz@tempbox
+
+\newcount\tikztreelevel
+\newcount\tikznumberofchildren
+\newcount\tikznumberofcurrentchild
+
+\newcount\tikz@fig@count
+
+\newif\iftikz@node@is@a@label
+\newif\iftikz@snaked
+
+\let\tikz@options=\@empty
+\let\tikz@transform=\relax
+\def\tikz@addoption#1{\expandafter\def\expandafter\tikz@options\expandafter{\tikz@options#1}}
+\def\tikz@addmode#1{\expandafter\def\expandafter\tikz@mode\expandafter{\tikz@mode#1}}
+\def\tikz@addtransform#1{%
+  \ifx\tikz@transform\relax%
+    #1%
+  \else%
+    \expandafter\def\expandafter\tikz@transform\expandafter{\tikz@transform#1}%
+  \fi%
+}
+
+
+
+% Baseline options
+\define@key{tikz}{baseline}[0pt]{\pgfsetbaseline{#1}}%
+
+% Draw options
+\define@key{tikz}{line width}{\tikz@semiaddlinewidth{#1}}%
+
+\def\tikz@semiaddlinewidth#1{\tikz@addoption{\pgfsetlinewidth{#1}}\setlength\pgflinewidth{#1}}
+
+\define@key{tikz}{cap}{\tikz@addoption{\csname pgfset#1cap\endcsname}}
+\define@key{tikz}{join}{\tikz@addoption{\csname pgfset#1join\endcsname}}
+\define@key{tikz}{miter limit}{\tikz@addoption{\pgfsetmiterlimit{#1}}}
+
+\define@key{tikz}{dash pattern}{% syntax: on 2pt off 3pt on 4pt ...
+  \def\tikz@temp{#1}%
+  \ifx\tikz@temp\@empty%
+    \def\tikz@dashpattern{}%
+    \tikz@addoption{\pgfsetdash{}{0pt}}%
+  \else%
+    \def\tikz@dashpattern{}%
+    \expandafter\tikz@scandashon\@gobble#1o\@nil%
+    \edef\tikz@temp{{\tikz@dashpattern}{\noexpand\tikz@dashphase}}%
+    \expandafter\tikz@addoption\expandafter{\expandafter\pgfsetdash\tikz@temp}%
+  \fi}
+\define@key{tikz}{dash phase}{%
+  \def\tikz@dashphase{#1}%
+  \edef\tikz@temp{{\tikz@dashpattern}{\noexpand\tikz@dashphase}}%
+  \expandafter\tikz@addoption\expandafter{\expandafter\pgfsetdash\tikz@temp}%
+}%
+\def\tikz@dashphase{0pt}
+
+\def\tikz@scandashon n#1o{%
+  \expandafter\def\expandafter\tikz@dashpattern\expandafter{\tikz@dashpattern{#1}}%
+  \@ifnextchar\@nil{\@gobble}{\tikz@scandashoff}}
+\def\tikz@scandashoff ff#1o{%
+  \expandafter\def\expandafter\tikz@dashpattern\expandafter{\tikz@dashpattern{#1}}%
+  \@ifnextchar\@nil{\@gobble}{\tikz@scandashon}}
+
+\define@key{tikz}{draw opacity}{\tikz@addoption{\pgfsetstrokeopacity{#1}}}
+
+% Double draw options
+\define@key{tikz}{double}[]{%
+  \def\tikz@temp{#1}%
+  \ifx\tikz@temp\@empty%
+  \else%
+    \def\tikz@double@color{#1}%
+  \fi%
+  \tikz@addmode{\tikz@mode@doubletrue}}
+\define@key{tikz}{double distance}{%
+  \setlength{\pgf@x}{#1}%
+  \edef\tikz@double@width@distance{\the\pgf@x}%
+  \tikz@addmode{\tikz@mode@doubletrue}}
+
+\def\tikz@double@width@distance{0.6pt}
+\def\tikz@double@color{white}
+
+% Fill options
+
+\define@key{tikz}{even odd rule}[]{\tikz@addoption{\pgfseteorule}}
+\define@key{tikz}{nonzero rule}[]{\tikz@addoption{\pgfsetnonzerorule}}
+
+\define@key{tikz}{fill opacity}{\tikz@addoption{\pgfsetfillopacity{#1}}}
+
+
+% Joined fill/draw options
+
+\define@key{tikz}{opacity}{\tikz@addoption{\pgfsetstrokeopacity{#1}\pgfsetfillopacity{#1}}}
+
+
+% Main color options
+\define@key{tikz}{color}{%
+  \tikz@addoption{%
+    \ifx\tikz@fillcolor\@empty%
+      \ifx\tikz@strokecolor\@empty%
+      \else%
+        \pgfsys@color@reset@inorderfalse%
+        \let\tikz@strokecolor\@empty%
+        \let\tikz@fillcolor\@empty%
+      \fi%
+    \else%
+      \pgfsys@color@reset@inorderfalse%
+      \let\tikz@strokecolor\@empty%
+      \let\tikz@fillcolor\@empty%
+    \fi%
+    \colorlet{tikz@color}{#1}%
+    \color{tikz@color}%
+    \pgfsys@color@reset@inordertrue%
+  }%
+  \def\tikz@textcolor{#1}}
+
+
+% Rounding options
+\define@key{tikz}{rounded corners}[4pt]{\pgfsetcornersarced{\pgfpoint{#1}{#1}}}
+\define@key{tikz}{sharp corners}[]{\pgfsetcornersarced{\pgfpointorigin}}
+
+
+
+% Coordinate options
+\define@key{tikz}{x}{\tikz@handle@vec{\pgfsetxvec}{\tikz@handle@x}#1\relax}
+\define@key{tikz}{y}{\tikz@handle@vec{\pgfsetyvec}{\tikz@handle@y}#1\relax}
+\define@key{tikz}{z}{\tikz@handle@vec{\pgfsetzvec}{\tikz@handle@z}#1\relax}
+
+\def\tikz@handle@vec#1#2{\@ifnextchar({\tikz@handle@coordinate#1}{\tikz@handle@single#2}}
+\def\tikz@handle@coordinate#1{\tikz@scan@one@point#1}
+\def\tikz@handle@single#1#2\relax{#1{#2}}
+\def\tikz@handle@x#1{\pgfsetxvec{\pgfpoint{#1}{0pt}}}
+\def\tikz@handle@y#1{\pgfsetyvec{\pgfpoint{0pt}{#1}}}
+\def\tikz@handle@z#1{\pgfsetzvec{\pgfpoint{#1}{#1}}}
+
+
+% Transformation options
+\define@key{tikz}{scale}{\tikz@addtransform{\pgftransformscale{#1}}}
+\define@key{tikz}{xscale}{\tikz@addtransform{\pgftransformxscale{#1}}}
+\define@key{tikz}{xslant}{\tikz@addtransform{\pgftransformxslant{#1}}}
+\define@key{tikz}{yscale}{\tikz@addtransform{\pgftransformyscale{#1}}}
+\define@key{tikz}{yslant}{\tikz@addtransform{\pgftransformyslant{#1}}}
+\define@key{tikz}{rotate}{\tikz@addtransform{\pgftransformrotate{#1}}}
+\define@key{tikz}{rotate around}{\tikz@addtransform{\tikz@rotatearound{#1}}}
+\def\tikz@rotatearound#1{%
+  \edef\tikz@temp{#1}% get rid of active stuff
+  \expandafter\tikz@rotateparseA\tikz@temp%
+}%
+\def\tikz@rotateparseA#1:{%
+  \def\tikz@temp@rot{#1}%
+  \tikz@scan@one@point\tikz@rotateparseB%
+}
+\def\tikz@rotateparseB#1{%
+  \pgf@process{#1}%
+  \pgf@xc=\pgf@x%
+  \pgf@yc=\pgf@y%
+  \pgftransformshift{\pgfpoint{\pgf@xc}{\pgf@yc}}%
+  \pgftransformrotate{\tikz@temp@rot}%
+  \pgftransformshift{\pgfpoint{-\pgf@xc}{-\pgf@yc}}%
+}
+
+\define@key{tikz}{shift}{\tikz@addtransform{\tikz@scan@one@point\pgftransformshift#1\relax}}
+\define@key{tikz}{xshift}{\tikz@addtransform{\pgftransformxshift{#1}}}
+\define@key{tikz}{yshift}{\tikz@addtransform{\pgftransformyshift{#1}}}
+\define@key{tikz}{cm}{\tikz@addtransform{\tikz@parse@cm#1\relax}}
+\define@key{tikz}{reset cm}{\tikz@addtransform{\pgftransformreset}}
+
+\def\tikz@parse@cm#1,#2,#3,#4,{%
+  \def\tikz@p@cm{{#1}{#2}{#3}{#4}}%
+  \tikz@scan@one@point\tikz@parse@cmA}
+\def\tikz@parse@cmA#1{%
+  \expandafter\pgftransformcm\tikz@p@cm{#1}%
+}
+
+
+
+% Grid options
+\define@key{tikz}{xstep}{\def\tikz@grid@x{#1}}
+\define@key{tikz}{ystep}{\def\tikz@grid@y{#1}}
+\define@key{tikz}{step}{\def\tikz@grid@x{#1}\def\tikz@grid@y{#1}}
+
+\def\tikz@grid@x{1cm}
+\def\tikz@grid@y{1cm}
+
+
+% Path usage options
+\newif\iftikz@mode@double
+\newif\iftikz@mode@fill
+\newif\iftikz@mode@draw
+\newif\iftikz@mode@clip
+\newif\iftikz@mode@boundary
+\newif\iftikz@mode@shade
+\let\tikz@mode=\@empty
+
+\def\tikz@nonetext{none}
+
+\define@key{tikz}{path only}[]{\let\tikz@mode=\@empty}
+\define@key{tikz}{shade}[]{\tikz@addmode{\tikz@mode@shadetrue}}
+\define@key{tikz}{fill}[]{%
+  \def\tikz@temp{#1}%
+  \ifx\tikz@temp\tikz@nonetext%
+    \tikz@addmode{\tikz@mode@fillfalse}%
+  \else%
+    \ifx\tikz@temp\@empty%
+    \else%
+      \tikz@addoption{\pgfsetfillcolor{#1}}%
+      \def\tikz@fillcolor{#1}%
+    \fi%
+    \tikz@addmode{\tikz@mode@filltrue}%
+  \fi%
+}
+\define@key{tikz}{draw}[]{%
+  \def\tikz@temp{#1}%
+  \ifx\tikz@temp\tikz@nonetext%
+    \tikz@addmode{\tikz@mode@drawfalse}%
+  \else%
+    \ifx\tikz@temp\@empty%
+    \else%
+      \tikz@addoption{\pgfsetstrokecolor{#1}}%
+      \def\tikz@strokecolor{#1}%
+    \fi%
+    \tikz@addmode{\tikz@mode@drawtrue}%
+  \fi%
+}
+\define@key{tikz}{clip}[]{\tikz@addmode{\tikz@mode@cliptrue}}
+\define@key{tikz}{use as bounding box}[]{\tikz@addmode{\tikz@mode@boundarytrue}}
+
+\define@key{tikz}{save path}{\tikz@addmode{\pgfsyssoftpath@getcurrentpath#1\global\let#1=#1}}
+
+\let\tikz@fillcolor=\@empty
+\let\tikz@strokecolor=\@empty
+
+
+% Shading options
+\define@key{tikz}{shading}{\def\tikz@shading{#1}\tikz@addmode{\tikz@mode@shadetrue}}
+\define@key{tikz}{shading angle}{\def\tikz@shade@angle{#1}\tikz@addmode{\tikz@mode@shadetrue}}
+\define@key{tikz}{top color}{%
+  \colorlet{tikz@axis@top}{#1}%
+  \colorlet{tikz@axis@middle}{tikz@axis@top!50!tikz@axis@bottom}%
+  \def\tikz@shading{axis}\def\tikz@shade@angle{0}\tikz@addmode{\tikz@mode@shadetrue}}
+\define@key{tikz}{bottom color}{%
+  \colorlet{tikz@axis@bottom}{#1}%
+  \colorlet{tikz@axis@middle}{tikz@axis@top!50!tikz@axis@bottom}%
+  \def\tikz@shading{axis}\def\tikz@shade@angle{0}\tikz@addmode{\tikz@mode@shadetrue}}
+\define@key{tikz}{middle color}{%
+  \colorlet{tikz@axis@middle}{#1}%
+  \def\tikz@shading{axis}\tikz@addmode{\tikz@mode@shadetrue}}
+\define@key{tikz}{left color}{%
+  \colorlet{tikz@axis@top}{#1}%
+  \colorlet{tikz@axis@middle}{tikz@axis@top!50!tikz@axis@bottom}%
+  \def\tikz@shading{axis}\def\tikz@shade@angle{90}\tikz@addmode{\tikz@mode@shadetrue}}
+\define@key{tikz}{right color}{%
+  \colorlet{tikz@axis@bottom}{#1}%
+  \colorlet{tikz@axis@middle}{tikz@axis@top!50!tikz@axis@bottom}%
+  \def\tikz@shading{axis}\def\tikz@shade@angle{90}\tikz@addmode{\tikz@mode@shadetrue}}
+\define@key{tikz}{ball color}{\colorlet{tikz@ball}{#1}\def\tikz@shading{ball}\tikz@addmode{\tikz@mode@shadetrue}}
+\define@key{tikz}{inner color}{\colorlet{tikz@radial@inner}{#1}\def\tikz@shading{radial}\tikz@addmode{\tikz@mode@shadetrue}}
+\define@key{tikz}{outer color}{\colorlet{tikz@radial@outer}{#1}\def\tikz@shading{radial}\tikz@addmode{\tikz@mode@shadetrue}}
+
+\def\tikz@shading{axis}
+\def\tikz@shade@angle{0}
+
+\pgfdeclareverticalshading[tikz@axis@top,tikz@axis@middle,tikz@axis@bottom]{axis}{100bp}{%
+  color(0bp)=(tikz@axis@bottom);
+  color(25bp)=(tikz@axis@bottom);
+  color(50bp)=(tikz@axis@middle);
+  color(75bp)=(tikz@axis@top);
+  color(100bp)=(tikz@axis@top)}
+
+\colorlet{tikz@axis@top}{gray}
+\colorlet{tikz@axis@middle}{gray!50!white}
+\colorlet{tikz@axis@bottom}{white}
+
+\pgfdeclareradialshading[tikz@ball]{ball}{\pgfpoint{-10bp}{10bp}}{%
+ color(0bp)=(tikz@ball!15!white);
+ color(9bp)=(tikz@ball!75!white);
+ color(18bp)=(tikz@ball!70!black);
+ color(25bp)=(tikz@ball!50!black);
+ color(50bp)=(black)}
+
+\colorlet{tikz@ball}{blue}
+
+\pgfdeclareradialshading[tikz@radial@inner,tikz@radial@outer]{radial}{\pgfpointorigin}{%
+ color(0bp)=(tikz@radial@inner);
+ color(25bp)=(tikz@radial@outer);
+ color(50bp)=(tikz@radial@outer)}
+
+\colorlet{tikz@radial@inner}{gray}
+\colorlet{tikz@radial@outer}{white}
+
+
+
+
+
+% General shape options
+\define@key{tikz}{name}{\edef\tikz@fig@name{#1}}
+
+\define@key{tikz}{shape}{\edef\tikz@shape{#1}}
+
+\define@key{tikz}{inner sep}{\def\pgfshapeinnerxsep{#1}\def\pgfshapeinnerysep{#1}}
+\define@key{tikz}{inner xsep}{\def\pgfshapeinnerxsep{#1}}
+\define@key{tikz}{inner ysep}{\def\pgfshapeinnerysep{#1}}
+
+\define@key{tikz}{outer sep}{\def\pgfshapeouterxsep{#1}\def\pgfshapeouterysep{#1}}
+\define@key{tikz}{outer xsep}{\def\pgfshapeouterxsep{#1}}
+\define@key{tikz}{outer ysep}{\def\pgfshapeouterysep{#1}}
+
+\define@key{tikz}{minimum width}{\def\pgfshapeminwidth{#1}}
+\define@key{tikz}{minimum height}{\def\pgfshapeminheight{#1}}
+\define@key{tikz}{minimum size}{\def\pgfshapeminwidth{#1}\def\pgfshapeminheight{#1}}
+
+\define@key{tikz}{anchor}{\def\tikz@anchor{#1}}
+
+\define@key{tikz}{left}[]{\def\tikz@anchor{east}\tikz@possibly@transform{x}{-}{#1}}
+\define@key{tikz}{right}[]{\def\tikz@anchor{west}\tikz@possibly@transform{x}{}{#1}}
+\define@key{tikz}{above}[]{\def\tikz@anchor{south}\tikz@possibly@transform{y}{}{#1}}
+\define@key{tikz}{below}[]{\def\tikz@anchor{north}\tikz@possibly@transform{y}{-}{#1}}
+\define@key{tikz}{above left}[]%
+  {\def\tikz@anchor{south east}%
+    \tikz@possibly@transform{x}{-}{#1}\tikz@possibly@transform{y}{}{#1}}
+\define@key{tikz}{above right}[]%
+  {\def\tikz@anchor{south west}%
+    \tikz@possibly@transform{x}{}{#1}\tikz@possibly@transform{y}{}{#1}}
+\define@key{tikz}{below left}[]%
+  {\def\tikz@anchor{north east}%
+    \tikz@possibly@transform{x}{-}{#1}\tikz@possibly@transform{y}{-}{#1}}
+\define@key{tikz}{below right}[]%
+  {\def\tikz@anchor{north west}%
+    \tikz@possibly@transform{x}{}{#1}\tikz@possibly@transform{y}{-}{#1}}
+
+\define@key{tikz}{transform shape}[true]{%
+  \csname tikz@fullytransformed#1\endcsname%
+  \iftikz@fullytransformed%
+    \pgfresetnontranslationattimefalse%
+  \else%
+    \pgfresetnontranslationattimetrue%
+  \fi%
+}
+
+\newif\iftikz@fullytransformed
+\pgfresetnontranslationattimetrue%
+
+\def\tikz@anchor{center}%
+\def\tikz@shape{rectangle}%
+
+\def\tikz@possibly@transform#1#2#3{%
+  \def\tikz@test{#3}%
+  \ifx\tikz@test\@empty%
+  \else%
+    \pgf@x=#3\relax%
+    \pgf@x=#2\pgf@x\relax%
+    \edef\tikz@marshal{\noexpand\tikz@addtransform{%
+        \expandafter\noexpand\csname  pgftransform#1shift\endcsname{\the\pgf@x}}}% 
+    \tikz@marshal%
+  \fi%
+}
+
+
+% Line/curve label placement options
+\define@key{tikz}{sloped}[true]{\csname pgfslopedattime#1\endcsname}
+
+\define@key{tikz}{pos}{\edef\tikz@time{#1}}
+
+\def\tikz@time{.5}
+
+
+
+% Text options
+\define@key{tikz}{text}{\def\tikz@textcolor{#1}}
+\define@key{tikz}{font}{\def\tikz@textfont{#1}}
+\define@key{tikz}{text width}{\def\tikz@text@width{#1}}
+\define@key{tikz}{text ragged}[]%
+{\def\tikz@text@action{\raggedright\rightskip\z@ plus2em \spaceskip.3333em \xspaceskip.5em\relax}}
+\define@key{tikz}{text badly ragged}[]{\def\tikz@text@action{\raggedright\relax}}
+\define@key{tikz}{text ragged left}[]%
+{\def\tikz@text@action{\raggedleft\leftskip\z@ plus2em \spaceskip.3333em \xspaceskip.5em\relax}}
+\define@key{tikz}{text badly ragged left}[]{\def\tikz@text@action{\raggedleft\relax}}
+\define@key{tikz}{text justified}[]{\def\tikz@text@action{\leftskip\z@\rightskip\z@\relax}}
+\define@key{tikz}{text centered}[]{\def\tikz@text@action{%
+  \leftskip\z@ plus2em%
+  \rightskip\z@ plus2em%
+  \spaceskip.3333em \xspaceskip.5em%
+  \parfillskip=0pt%
+  \let\\=\@centercr% for latex
+  \relax}}
+\define@key{tikz}{text badly centered}[]%
+{\def\tikz@text@action{%
+  \let\\=\@centercr% for latex
+  \parfillskip=0pt%
+  \rightskip\@flushglue%
+  \leftskip\@flushglue\relax}}
+
+\let\tikz@text@width=\@empty
+\let\tikz@textcolor=\@empty
+\let\tikz@textfont=\@empty
+
+\def\tikz@text@action{\raggedright\rightskip\z@ plus2em \spaceskip.3333em \xspaceskip.5em\relax}
+
+
+
+
+
+% Arrow options
+\define@key{tikz}{arrows}{\tikz@processarrows{#1}}
+
+\define@key{tikz}{>}{%
+  \tikz@set@pointed{\csname pgf@arrows@invert#1\endcsname}{#1}%
+  \expandafter\tikz@processarrows\expandafter{\tikz@current@arrows}%
+}
+
+\define@key{tikz}{shorten <}{\pgfsetshortenstart{#1}}
+\define@key{tikz}{shorten >}{\pgfsetshortenend{#1}}
+
+\def\tikz@set@pointed#1#2{%
+  \@ifundefined{pgf@arrow@code@tikze@>@#2}
+  {%
+    \pgfarrowsdeclarealias{tikzs@<@#2}{tikze@>@#2}{#1}{#2}%
+    \pgfarrowsdeclarereversed{tikzs@>@#2}{tikze@<@#2}{#1}{#2}%
+    \pgfarrowsdeclarecombine*{tikz@|<@#2}{tikz@>|@#2}{#1}{#2}{|}{|}%
+    \pgfarrowsdeclaredouble[\pgflinewidth]{tikzs@<<@#2}{tikze@>>@#2}{#1}{#2}%
+    \pgfarrowsdeclarereversed{tikzs@>>@#2}{tikze@<<@#2}{tikzs@<<@#2}{tikze@>>@#2}%
+  }{}%
+  \@namedef{tikz@special@arrow@start<}{tikzs@<@#2}%
+  \@namedef{tikz@special@arrow@end>}{tikze@>@#2}%
+  \@namedef{tikz@special@arrow@start>}{tikzs@>@#2}%
+  \@namedef{tikz@special@arrow@end<}{tikze@<@#2}%
+  \@namedef{tikz@special@arrow@start|<}{tikz@|<@#2}%
+  \@namedef{tikz@special@arrow@end>|}{tikz@>|@#2}%
+  \@namedef{tikz@special@arrow@start<<}{tikzs@<<@#2}%
+  \@namedef{tikz@special@arrow@end>>}{tikze@>>@#2}%
+  \@namedef{tikz@special@arrow@start>>}{tikzs@<<@#2}%
+  \@namedef{tikz@special@arrow@end<<}{tikze@>>@#2}%
+}
+
+\def\tikz@processarrows#1{%
+  \def\tikz@current@arrows{#1}%
+  \def\tikz@temp{#1}%
+  \ifx\tikz@temp\@empty%
+  \else%
+    \tikz@@processarrows#1\@nil
+  \fi%
+}
+\def\tikz@@processarrows#1-#2\@nil{%
+  \expandafter\ifx\csname tikz@special@arrow@start#1\endcsname\relax%
+    \pgfsetarrowsstart{#1}
+  \else%
+    \pgfsetarrowsstart{\csname tikz@special@arrow@start#1\endcsname}%
+  \fi%
+  \expandafter\ifx\csname tikz@special@arrow@end#2\endcsname\relax%
+    \pgfsetarrowsend{#2}
+  \else%
+    \pgfsetarrowsend{\csname tikz@special@arrow@end#2\endcsname}%
+  \fi%
+}
+
+\tikz@set@pointed{\pgf@arrows@invertto}{to}
+\def\tikz@current@arrows{-}
+
+% Parabola options
+\define@key{tikz}{bend}{\tikz@scan@one@point\tikz@set@parabola@bend#1\relax}%
+\define@key{tikz}{bend pos}{\def\tikz@parabola@bend@factor{#1}}
+\define@key{tikz}{parabola height}{%
+  \def\tikz@parabola@bend@factor{.5}%
+  \def\tikz@parabola@bend{\pgfpointadd{\pgfpoint{0pt}{#1}}{\tikz@last@position@saved}}}
+
+\def\tikz@parabola@bend{\tikz@last@position@saved}
+\def\tikz@parabola@bend@factor{0}
+
+\def\tikz@set@parabola@bend#1{\def\tikz@parabola@bend{#1}}
+
+% Axis options
+\define@key{tikz}{domain}{\def\tikz@plot@domain{#1}}
+\define@key{tikz}{range}{\def\tikz@plot@range{#1}}
+
+% Plot options
+\define@key{tikz}{smooth}[]{\let\tikz@plot@handler=\pgfplothandlercurveto}
+\define@key{tikz}{smooth cycle}[]{\let\tikz@plot@handler=\pgfplothandlerclosedcurve}
+\define@key{tikz}{sharp plot}[]{\let\tikz@plot@handler\pgfplothandlerlineto}
+
+\define@key{tikz}{tension}{\pgfsetplottension{#1}}
+
+\define@key{tikz}{xcomb}[]{\let\tikz@plot@handler=\pgfplothandlerxcomb}
+\define@key{tikz}{ycomb}[]{\let\tikz@plot@handler=\pgfplothandlerycomb}
+\define@key{tikz}{polar comb}[]{\let\tikz@plot@handler=\pgfplothandlerpolarcomb}
+
+\define@key{tikz}{raw gnuplot}[true]{\csname tikz@plot@raw@gnuplot#1\endcsname}
+\define@key{tikz}{prefix}{\def\tikz@plot@prefix{#1}}
+\define@key{tikz}{id}{\def\tikz@plot@id{#1}}
+
+\define@key{tikz}{samples}{\def\tikz@plot@sampels{#1}}
+\define@key{tikz}{parametric}[true]{\csname tikz@plot@parametric#1\endcsname}
+
+\define@key{tikz}{only marks}[]{\let\tikz@plot@handler\pgfplothandlerdiscard}
+
+\define@key{tikz}{mark}{\def\tikz@plot@mark{#1}}
+\define@key{tikz}{mark options}{\def\tikz@plot@mark@options{#1}}
+\define@key{tikz}{mark size}{\pgfsetplotmarksize{#1}}
+
+\let\tikz@plot@mark@options=\@empty
+
+\let\tikz@plot@handler=\pgfplothandlerlineto
+\let\tikz@plot@mark=\@empty
+
+\def\tikz@plot@sampels{25}
+\def\tikz@plot@domain{-5:5}
+
+\def\tikz@plot@prefix{\jobname.}
+\def\tikz@plot@id{pgf-plot}
+
+\newif\iftikz@plot@parametric
+\newif\iftikz@plot@raw@gnuplot
+
+
+% Tree options
+\define@key{tikz}{edge from parent path}{\def\tikz@edge@to@parent@path{#1}}
+
+\define@key{tikz}{parent anchor}{\def\tikzparentanchor{.#1}\ifx\tikzparentanchor\tikz@border@text\let\tikzparentanchor\@empty\fi}
+\define@key{tikz}{child anchor}{\def\tikzchildanchor{.#1}\ifx\tikzchildanchor\tikz@border@text\let\tikzchildanchor\@empty\fi}
+
+\define@key{tikz}{level distance}{\setlength\tikzleveldistance{#1}}
+\define@key{tikz}{sibling distance}{\setlength\tikzsiblingdistance{#1}}
+
+\define@key{tikz}{growth function}{\let\tikz@grow=#1}
+\define@key{tikz}{grow}{\tikz@set@growth{#1}\edef\tikz@special@level{\the\tikztreelevel}}%
+\define@key{tikz}{grow'}{\tikz@set@growth{#1}\tikz@swap@growth\edef\tikz@special@level{\the\tikztreelevel}}%
+
+
+\def\tikz@special@level{-1}% never
+
+\def\tikz@swap@growth{%
+  % Swap left and right
+  \let\tikz@temp=\tikz@angle@grow@right%
+  \let\tikz@angle@grow@right=\tikz@angle@grow@left%
+  \let\tikz@angle@grow@left=\tikz@temp%
+}%
+
+\def\tikz@set@growth#1{%
+  \let\tikz@grow=\tikz@grow@direction%
+  \expandafter\ifx\csname tikz@grow@direction@#1\endcsname\relax%
+    \c@pgf@counta=#1\relax%
+  \else%
+    \c@pgf@counta=\csname tikz@grow@direction@#1\endcsname%
+  \fi%
+  \edef\tikz@angle@grow{\the\c@pgf@counta}%
+  \advance\c@pgf@counta by-90\relax%
+  \edef\tikz@angle@grow@left{\the\c@pgf@counta}%
+  \advance\c@pgf@counta by180\relax%
+  \edef\tikz@angle@grow@right{\the\c@pgf@counta}%
+}
+
+\def\tikz@border@text{.border}
+\let\tikzparentanchor=\@empty
+\let\tikzchildanchor=\@empty
+\def\tikz@edge@to@parent@path{(\tikzparentnode\tikzparentanchor) -- (\tikzchildnode\tikzchildanchor)}
+
+\tikzleveldistance=15mm
+\tikzsiblingdistance=15mm
+
+\def\tikz@grow@direction@down{-90}
+\def\tikz@grow@direction@up{90}
+\def\tikz@grow@direction@left{180}
+\def\tikz@grow@direction@right{0}
+
+\def\tikz@grow@direction@south{-90}
+\def\tikz@grow@direction@north{90}
+\def\tikz@grow@direction@west{180}
+\def\tikz@grow@direction@east{0}
+
+\expandafter\def\csname tikz@grow@direction@north east\endcsname{45}
+\expandafter\def\csname tikz@grow@direction@north west\endcsname{135}
+\expandafter\def\csname tikz@grow@direction@south east\endcsname{-45}
+\expandafter\def\csname tikz@grow@direction@south west\endcsname{-135}
+
+\def\tikz@grow@direction{%
+  \pgftransformshift{\pgfpointpolar{\tikz@angle@grow}{\tikzleveldistance}}%
+  \ifnum\tikztreelevel=\tikz@special@level%
+  \else%
+    \pgf@xc=.5\tikzsiblingdistance%
+    \c@pgf@counta=\tikznumberofchildren%
+    \advance\c@pgf@counta by1\relax%
+    \@tempdima=\c@pgf@counta\pgf@xc%
+    \pgftransformshift{\pgfpointpolar{\tikz@angle@grow@left}{\@tempdima}}%
+    \pgftransformshift{\pgfpointpolar{\tikz@angle@grow@right}{\tikznumberofcurrentchild\tikzsiblingdistance}}%
+  \fi%
+}
+
+\setkeys{tikz}{grow=down}
+
+
+
+
+% Snake options
+\define@key{tikz}{snake}[]{%
+  \def\tikz@@snake{#1}%
+  \ifx\tikz@@snake\@empty%
+    \tikz@snakedtrue%
+  \else%
+    \ifx\tikz@@snake\tikz@nonetext%
+      \tikz@snakedfalse%
+    \else%
+      \tikz@snakedtrue%
+      \let\tikz@snake=\tikz@@snake%
+    \fi%
+  \fi}
+
+\define@key{tikz}{segment amplitude}{\setlength{\pgfsnakesegmentamplitude}{#1}}
+\define@key{tikz}{segment length}{\setlength{\pgfsnakesegmentlength}{#1}}
+\define@key{tikz}{segment angle}{\def\pgfsnakesegmentangle{#1}}
+\define@key{tikz}{segment aspect}{\def\pgfsnakesegmentaspect{#1}}
+
+\define@key{tikz}{segment object length}{\def\pgfsnakesegmentobjectlength{#1}}
+
+\define@key{tikz}{raise snake}{\def\pgf@snake@raise{\pgftransformyshift{#1}}}
+\define@key{tikz}{mirror snake}[true]{%
+  \csname if#1\endcsname
+    \def\pgf@snake@mirror{\pgftransformyscale{-1}}%
+  \else%
+    \let\pgf@snake@mirror=\@empty%
+  \fi
+}
+
+\define@key{tikz}{gap before snake}{\def\tikz@presnake{{moveto}{#1}}}
+\define@key{tikz}{line before snake}{\def\tikz@presnake{{lineto}{#1}}}
+
+\define@key{tikz}{gap after snake}{\def\tikz@postsnake{{moveto}{#1}}\def\tikz@mainsnakelength{\pgfsnakeremainingdistance-#1}}
+\define@key{tikz}{line after snake}{\def\tikz@postsnake{{lineto}{#1}}\def\tikz@mainsnakelength{\pgfsnakeremainingdistance-#1}}
+
+\define@key{tikz}{gap around snake}{%
+  \def\tikz@presnake{{moveto}{#1}}%
+  \def\tikz@postsnake{{moveto}{#1}}%
+  \def\tikz@mainsnakelength{\pgfsnakeremainingdistance-#1}%
+}
+\define@key{tikz}{line around snake}{%
+  \def\tikz@presnake{{lineto}{#1}}%
+  \def\tikz@postsnake{{lineto}{#1}}%
+  \def\tikz@mainsnakelength{\pgfsnakeremainingdistance-#1}%
+}
+\let\pgf@snake@mirror=\@empty
+\let\pgf@snake@raise=\@empty
+
+\pgfsetsnakesegmenttransformation{\pgf@snake@mirror\pgf@snake@raise}
+
+\def\tikz@snake{zigzag}
+
+\let\tikz@presnake=\@empty
+\let\tikz@postsnake=\@empty
+\def\tikz@mainsnakelength{\pgfsnakeremainingdistance}
+
+
+
+% Execute option
+
+\define@key{tikz}{execute at begin picture}{\expandafter\def\expandafter\tikz@atbegin@picture\expandafter{\tikz@atbegin@picture#1}}
+\define@key{tikz}{execute at end picture}{\expandafter\def\expandafter\tikz@atend@picture\expandafter{\tikz@atend@picture#1}}
+\define@key{tikz}{execute at begin scope}{\expandafter\def\expandafter\tikz@atbegin@scope\expandafter{\tikz@atbegin@scope#1}}
+\define@key{tikz}{execute at end scope}{\expandafter\def\expandafter\tikz@atend@scope\expandafter{\tikz@atend@scope#1}}
+
+\let\tikz@atbegin@picture=\@empty
+\let\tikz@atend@picture=\@empty
+\let\tikz@atbegin@scope=\@empty
+\let\tikz@atend@scope=\@empty
+
+
+
+
+% Styles
+\define@key{tikz}{set style}{\tikzstyle#1}
+
+% Handled in a special way.
+\def\tikzstyle#1=#2[#3]{% #2 is dummy
+  \in@+{#1}%
+  \ifin@%
+    \tikz@style#1{#3}%
+  \else%
+    \expandafter\def\csname tikz@st@#1\endcsname{#3}%
+  \fi}
+\def\tikz@style#1+#2{%
+  \edef\tikz@marshal{\def\expandafter\noexpand\csname tikz@st@#1\endcsname}%
+  \expandafter\expandafter\expandafter\tikz@marshal\expandafter\expandafter\expandafter{\csname tikz@st@#1\endcsname,#2}}
+
+\def\iftikzstyleempty#1#2#3{%
+  \expandafter\ifx\csname tikz@st@#1\endcsname\@empty%
+    \let\pgf@next=\@firstoftwo%
+  \else%
+    \expandafter\ifx\csname tikz@st@#1\endcsname\relax%
+      \let\pgf@next=\@firstoftwo%
+    \else
+      \let\pgf@next=\@secondoftwo%
+    \fi%
+  \fi%
+  \pgf@next{#2}{#3}}
+
+
+
+%
+%
+% Predefined styles
+%
+%
+
+\tikzstyle{help lines}=              [color=gray,line width=0.2pt]
+
+\tikzstyle{every picture}=           []
+\tikzstyle{every path}=              []
+\tikzstyle{every scope}=             []
+\tikzstyle{every plot}=              []
+\tikzstyle{every node}=              []
+\tikzstyle{every child}=             []
+\tikzstyle{every child node}=        []
+
+\tikzstyle{ultra thin}=              [line width=0.1pt]
+\tikzstyle{very thin}=               [line width=0.2pt]
+\tikzstyle{thin}=                    [line width=0.4pt]
+\tikzstyle{semithick}=               [line width=0.6pt]
+\tikzstyle{thick}=                   [line width=0.8pt]
+\tikzstyle{very thick}=              [line width=1.2pt]
+\tikzstyle{ultra thick}=             [line width=1.6pt]
+
+\tikzstyle{solid}=                   [dash pattern=]
+\tikzstyle{dotted}=                  [dash pattern=on \pgflinewidth off 2pt]
+\tikzstyle{densely dotted}=          [dash pattern=on \pgflinewidth off 1pt]
+\tikzstyle{loosely dotted}=          [dash pattern=on \pgflinewidth off 4pt]
+\tikzstyle{dashed}=                  [dash pattern=on 3pt off 3pt]
+\tikzstyle{densely dashed}=          [dash pattern=on 3pt off 2pt]
+\tikzstyle{loosely dashed}=          [dash pattern=on 3pt off 6pt]
+
+\tikzstyle{transparent}=             [opacity=0]
+\tikzstyle{ultra nearly transparent}=[opacity=0.05]
+\tikzstyle{very nearly transparent}= [opacity=0.1]
+\tikzstyle{nearly transparent}=      [opacity=0.25]
+\tikzstyle{semitransparent}=         [opacity=0.5]
+\tikzstyle{nearly opaque}=           [opacity=0.75]
+\tikzstyle{very nearly opaque}=      [opacity=0.9]
+\tikzstyle{ultra nearly opaque}=     [opacity=0.95]
+\tikzstyle{opaque}=                  [opacity=1]
+
+\tikzstyle{at start}=                [pos=0]
+\tikzstyle{very near start}=         [pos=0.125]
+\tikzstyle{near start}=              [pos=0.25]
+\tikzstyle{midway}=                  [pos=0.5]
+\tikzstyle{near end}=                [pos=0.75]
+\tikzstyle{very near end}=           [pos=0.875]
+\tikzstyle{at end}=                  [pos=1]
+
+\tikzstyle{bend at start}=           [bend pos=0,bend={+(0,0)}]
+\tikzstyle{bend at end}=             [bend pos=1,bend={+(0,0)}]
+
+\tikzstyle{edge from parent}=        [draw]
+
+\tikzstyle{snake triangles 45}=      [snake=triangles,segment object length=2.41421356\pgfsnakesegmentamplitude]
+\tikzstyle{snake triangles 60}=      [snake=triangles,segment object length=1.73205081\pgfsnakesegmentamplitude]
+\tikzstyle{snake triangles 90}=      [snake=triangles,segment object length=\pgfsnakesegmentamplitude]
+
+
+%
+% Setting keys
+%
+
+\let\tikz@late@keys=\@empty%
+
+\def\tikz@set@one@key#1{%
+  \setkeys*{tikz}{#1}%
+  \ifx\XKV@rm\@empty%
+    % fine
+  \else%
+    \expandafter\in@\expandafter!\expandafter{\XKV@rm}%
+    \ifin@%
+      % this is a color!
+      \expandafter\tikz@addoption\expandafter{\expandafter\color\expandafter{\XKV@rm}}%
+      \edef\tikz@textcolor{\XKV@rm}%
+    \else%
+      \expandafter\ifx\csname\string\color@\XKV@rm\endcsname\relax%
+        % Ok, second chance: This might be an arrow specification:
+        \expandafter\in@\expandafter-\expandafter{\XKV@rm}
+        \ifin@%
+          % Ah, an arrow spec!
+          \expandafter\tikz@processarrows\expandafter{\XKV@rm}%
+        \else%
+          % Ok, third chance: A shape!
+          \expandafter\ifx\csname pgf@sh@s@\XKV@rm\endcsname\relax%
+            \PackageError{tikz}{I do not know what to do with the option ``\XKV@rm''}{}
+          \else%
+            \edef\tikz@shape{\XKV@rm}%
+          \fi%
+        \fi%
+      \else%
+        \expandafter\tikz@addoption\expandafter{\expandafter\color\expandafter{\XKV@rm}}%
+        \edef\tikz@textcolor{\XKV@rm}%
+      \fi%
+    \fi%
+  \fi%  
+}
+
+\def\tikz@setkeys#1{\tikz@@setkeys#1,\pgf@stop}
+
+\def\tikz@@setkeys#1,#2\pgf@stop{%
+  \def\tikz@key@test{#1}%
+  \def\tikz@key@rest{#2}%
+  \ifx\tikz@key@test\@empty%
+  \else%
+    \@ifnextchar s{\tikz@parse@key}{\tikz@parse@key}#1==\pgf@stop%
+  \fi%
+  \ifx\tikz@key@rest\@empty%
+  \else%
+    \expandafter\expandafter\expandafter\tikz@@setkeys\expandafter\tikz@key@rest\expandafter\pgf@stop%
+  \fi%
+}
+
+\def\tikz@style@text{style}
+
+\def\tikz@parse@key#1=#2=#3\pgf@stop{
+  \def\tikz@key@test{#1}%
+  \ifx\tikz@key@test\tikz@style@text%
+    % Ok, style!
+    \@ifundefined{tikz@st@#2}%
+    {\PackageError{tikz}{Unknown style ``#2}''{}}
+    {%
+      \expandafter\let\expandafter\tikz@temp\expandafter=\csname tikz@st@#2\endcsname%
+      \expandafter\expandafter\expandafter\def
+      \expandafter\expandafter\expandafter\tikz@key@rest
+      \expandafter\expandafter\expandafter{\expandafter\tikz@temp\expandafter,\tikz@key@rest}%
+    }%
+  \else%
+    \expandafter\ifx\csname tikz@st@#1\endcsname\relax%
+      % Ok, normal!
+      \def\tikz@test{#3}%
+      \ifx\tikz@test\@empty%
+        \tikz@set@one@key{#1}%
+      \else%
+        \tikz@set@one@key{#1={#2}}%
+      \fi%
+    \else%
+      % Ok, style!
+      \expandafter\let\expandafter\tikz@temp\expandafter=\csname tikz@st@#1\endcsname%
+      \expandafter\expandafter\expandafter\def
+      \expandafter\expandafter\expandafter\tikz@key@rest
+      \expandafter\expandafter\expandafter{\expandafter\tikz@temp\expandafter,\tikz@key@rest}%
+    \fi%
+  \fi%  
+}
+
+\def\tikz@every@style#1{%
+  \expandafter\ifx\csname tikz@st@#1\endcsname\relax%
+  \else%
+    \expandafter\expandafter\expandafter\tikz@setkeys
+    \expandafter\expandafter\expandafter{\csname tikz@st@#1\endcsname}%
+  \fi%
+}
+
+
+
+
+
+%
+% Main TikZ Environment
+%
+
+\def\tikzpicture{\@ifnextchar[\tikz@picture{\tikz@picture[]}}%}
+\def\tikz@picture[#1]{%
+  \pgfpicture%
+  \let\tikz@atbegin@picture=\@empty%
+  \let\tikz@atend@picture=\@empty%
+  \tikz@installcommands\scope[style=every picture,#1]%
+  \tikz@atbegin@picture%
+}
+\def\endtikzpicture{%
+    \tikz@atend@picture%
+    \global\let\pgf@shift@baseline=\pgf@baseline%
+    \endscope%
+    \let\pgf@baseline=\pgf@shift@baseline%
+  \endpgfpicture}
+
+  
+
+% Inlined picture
+%
+% #1 - some code to be put in a tikzpicture environment.
+%
+% If the command is not followed by braces, everything up to the next
+% semicolon is used as argument.
+%
+% Example:
+%
+% The rectangle \tikz{\draw (0,0) rectangle (1em,1ex)} has width 1em and
+% height 1ex.
+
+\def\tikz{\@ifnextchar[{\tikz@opt}{\tikz@opt[]}}
+\def\tikz@opt[#1]{\@ifnextchar\bgroup{\tikz@[#1]}{\tikz@@[#1]}}
+\def\tikz@[#1]#2{\tikzpicture[#1]#2\endtikzpicture}
+\def\tikz@@{%
+  \let\tikz@next=\tikz@collectnormalsemicolon%
+  \ifnum\the\catcode`\;=\active\relax%
+    \let\tikz@next=\tikz@collectactivesemicolon%
+  \fi%
+  \tikz@next}
+\def\tikz@collectnormalsemicolon[#1]#2;{\tikzpicture[#1]#2;\endtikzpicture}
+{
+  \catcode`\;=\active
+  \gdef\tikz@collectactivesemicolon[#1]#2;{\tikzpicture[#1]#2;\endtikzpicture}
+}
+
+
+
+%
+% Environment for scoping graphic state settings
+%
+\def\tikz@scope@env{\@ifnextchar[\tikz@@scope@env{\tikz@@scope@env[]}}
+\def\tikz@@scope@env[#1]{%
+  \pgfscope%
+  \begingroup%
+  \let\tikz@atbegin@scope=\@empty%
+  \let\tikz@atend@scope=\@empty%
+  \let\tikz@options=\@empty%
+  \let\tikz@mode=\@empty%
+  \tikz@every@style{every scope}%
+  \tikz@setkeys{#1}%
+  \tikz@options%
+  \tikz@atbegin@scope%
+}
+\def\endtikz@scope@env{%
+  \tikz@atend@scope%
+  \endgroup%
+  \endpgfscope%
+}
+
+
+%
+% Install the abbreviated commands
+%
+\def\tikz@installcommands{%
+  \ifnum\the\catcode`\;=\active\relax\expandafter\let\expandafter\tikz@origsemi\expandafter=\tikz@activesemicolon\fi%
+  \ifnum\the\catcode`\:=\active\relax\expandafter\let\expandafter\tikz@origcolon\expandafter=\tikz@activecolon\fi%
+  \ifnum\the\catcode`\|=\active\relax\expandafter\let\expandafter\tikz@origbar\expandafter=\tikz@activebar\fi%
+  \let\tikz@origscope=\scope%
+  \let\tikz@origendscope=\endscope%
+  \let\tikz@origpath=\path%
+  \let\tikz@origagainpath=\againpath%
+  \let\tikz@origdraw=\draw%
+  \let\tikz@origfill=\fill%
+  \let\tikz@origfilldraw=\filldraw%
+  \let\tikz@origshade=\shade%
+  \let\tikz@origshadedraw=\shadedraw%
+  \let\tikz@origclip=\clip%
+  \let\tikz@origuseasboundingbox=\useasboundingbox%
+  \let\tikz@orignode=\node%
+  \let\tikz@orignode=\coordiante%
+  %
+  \tikz@deactivatthings%
+  %
+  \let\scope=\tikz@scope@env%
+  \let\endscope=\endtikz@scope@env%
+  \let\path=\tikz@command@path%
+  \let\againpath=\tikz@command@againpath%
+  %
+  \def\draw{\path[draw]}
+  \def\fill{\path[fill]}
+  \def\filldraw{\path[fill,draw]}
+  \def\shade{\path[shade]}
+  \def\shadedraw{\path[shade,draw]}
+  \def\clip{\path[clip]}
+  \def\useasboundingbox{\path[use as bounding box]}
+  \def\node{\path node}
+  \def\coordinate{\path coordinate}
+}
+
+\def\tikz@uninstallcommands{%
+  \ifnum\the\catcode`\;=\active\relax\expandafter\let\tikz@activesemicolon=\tikz@origsemi\fi%
+  \ifnum\the\catcode`\:=\active\relax\expandafter\let\tikz@activecolon=\tikz@origcolon\fi%
+  \ifnum\the\catcode`\|=\active\relax\expandafter\let\tikz@activebar=\tikz@origbar\fi%
+  \let\scope=\tikz@origscope%
+  \let\endscope=\tikz@origendscope%
+  \let\path=\tikz@origpath%
+  \let\againpath=\tikz@origagainpath%
+  \let\draw=\tikz@origdraw%
+  \let\fill=\tikz@origfill%
+  \let\filldraw=\tikz@origfilldraw%
+  \let\shade=\tikz@origshade%
+  \let\shadedraw=\tikz@origshadedraw%
+  \let\clip=\tikz@origclip%
+  \let\useasboundingbox=\tikz@origuseasboundingbox%
+  \let\node=\tikz@orignode%
+}
+
+
+{
+  \catcode`\;=12
+  \gdef\tikz@nonactivesemicolon{;}
+  \catcode`\:=12
+  \gdef\tikz@nonactivecolon{:}
+  \catcode`\|=12
+  \gdef\tikz@nonactivebar{|}
+  \catcode`\;=\active
+  \catcode`\:=\active
+  \catcode`\|=\active
+  \catcode`\"=\active
+  \gdef\tikz@activesemicolon{;}%
+  \gdef\tikz@activecolon{:}%
+  \gdef\tikz@activebar{|}%
+  \gdef\tikz@activequotes{"}%
+  \gdef\tikz@deactivatthings{%
+    \def;{\tikz@nonactivesemicolon}
+    \def:{\tikz@nonactivecolon}
+    \def|{\tikz@nonactivebar}
+  }
+}
+
+
+
+
+
+% Constructs a path and draws/fills them according to the current
+% settings.  
+
+\def\tikz@command@path{%
+  \@ifnextchar[{\tikz@check@earg}%]
+  {\@ifnextchar<{\tikz@doopt}{\tikz@@command@path}}}
+\def\tikz@check@earg[#1]{%
+  \@ifnextchar<{\tikz@swap@args[#1]}{\tikz@@command@path[#1]}}
+\def\tikz@swap@args[#1]<#2>{\tikz@command@path<#2>[#1]}
+
+\def\tikz@doopt{%
+  \let\tikz@next=\tikz@eargnormalsemicolon%
+  \ifnum\the\catcode`\;=\active\relax%
+    \let\tikz@next=\tikz@eargactivesemicolon%
+  \fi%
+  \tikz@next}
+\long\def\tikz@eargnormalsemicolon<#1>#2;{\only<#1>{\tikz@@command@path#2;}}
+{
+  \catcode`\;=\active
+  \long\global\def\tikz@eargactivesemicolon<#1>#2;{\only<#1>{\tikz@@command@path#2;}}
+}
+
+\def\tikz@@command@path{%
+  \edef\tikzscope@linewidth{\the\pgflinewidth}%
+  \begingroup%
+    \let\tikz@options=\@empty%
+    \let\tikz@mode=\@empty%
+    \let\tikz@moveto@waiting=\relax%
+    \let\tikz@timer=\relax%
+    \let\tikz@collected@onpath=\@empty%
+    \tikz@snakedfalse%
+    \tikz@node@is@a@labelfalse%
+    \tikz@expandcount=1000\relax%
+    \tikz@lastx=0pt%
+    \tikz@lasty=0pt%
+    \tikz@lastxsaved=0pt%
+    \tikz@lastysaved=0pt%
+    \tikz@every@style{every path}%
+    \tikz@scan@next@command%
+}
+\def\tikz@scan@next@command{%
+  \ifx\tikz@collected@onpath\@empty%
+  \else%
+    \tikz@invoke@collected@onpath%
+  \fi%
+  \afterassignment\tikz@handle\let\@let@token=%
+}
+\newcount\tikz@expandcount
+
+% Central dispatcher for commands
+\def\tikz@handle{%
+  \let\@next=\tikz@expand%
+    \ifx\@let@token(%)
+      \let\@next=\tikz@movetoabs%
+    \else%
+      \ifx\@let@token+%
+        \let\@next=\tikz@movetorel%
+      \else%
+        \ifx\@let@token-%
+          \let\@next=\tikz@lineto%
+        \else%
+          \ifx\@let@token.%
+            \let\@next=\tikz@dot%
+          \else%
+            \ifx\@let@token r%
+              \let\@next=\tikz@rect%
+            \else%
+              \ifx\@let@token a%
+                \let\@next=\tikz@arcA%
+              \else%
+                \ifx\@let@token[%]
+                  \let\@next=\tikz@parse@options%
+                \else%
+                  \ifx\@let@token n%
+                    \let\@next=\tikz@fig%
+                  \else%
+                    \ifx\@let@token\bgroup%
+                      \let\@next=\tikz@beginscope%
+                    \else%
+                      \ifx\@let@token\egroup%
+                        \let\@next=\tikz@endscope%
+                      \else%
+                        \ifx\@let@token;%
+                          \let\@next=\tikz@finish%
+                        \else%
+                          \ifx\@let@token c%
+                            \let\@next=\tikz@cchar%
+                          \else%
+                            \ifx\@let@token e%
+                              \let\@next=\tikz@e@char%
+                            \else%
+                              \ifx\@let@token g%
+                                \let\@next=\tikz@grid%
+                              \else%
+                                \ifx\@let@token s%
+                                   \let\@next=\tikz@sine%
+                                \else%
+                                  \ifx\@let@token |%
+                                     \let\@next=\tikz@vh@lineto%
+                                  \else%
+                                    \ifx\@let@token p%
+                                      \let\@next=\tikz@pchar%
+                                      \pgfsetmovetofirstplotpoint%
+                                    \else%
+                                      \ifx\@let@token\pgfextra%
+                                        \let\@next=\tikz@extra%
+                                      \else%
+                                        \ifx\@let@token\foreach%
+                                          \let\@next=\tikz@foreach%
+                                        \else%
+                                          \ifx\@let@token\pgf@stop%
+                                            \let\@next=\relax%
+                                          \else%
+                                            \ifx\@let@token\par%
+                                              \let\@next=\tikz@scan@next@command%
+                                            \fi%      
+                                          \fi%      
+                                        \fi%      
+                                      \fi%      
+                                    \fi%  
+                                  \fi%  
+                                \fi%
+                              \fi%
+                            \fi%
+                          \fi%
+                        \fi%
+                      \fi%  
+                    \fi%  
+                  \fi%  
+                \fi%  
+              \fi%
+            \fi%
+          \fi%
+        \fi%
+      \fi%
+    \fi%
+  \@next%
+}
+
+\def\tikz@pchar{\@ifnextchar l{\tikz@plot}{\tikz@parabola}}
+\def\tikz@cchar{%
+  \@ifnextchar i{\tikz@circle}%
+  {\@ifnextchar h{\tikz@children}{\tikz@cochar}}}%
+\def\tikz@cochar o{%
+  \@ifnextchar o{\tikz@coordinate}{\tikz@cosine}}
+\def\tikz@e@char{%
+  \@ifnextchar l{\tikz@ellipse}{\tikz@edgetoparent}}
+
+
+\def\tikz@finish{%
+  \tikz@mode@fillfalse%
+  \tikz@mode@drawfalse%
+  \tikz@mode@doublefalse%
+  \tikz@mode@clipfalse%
+  \tikz@mode@boundaryfalse%
+  \edef\tikz@pathextend{%
+    {\noexpand\pgfpoint{\the\pgf@pathminx}{\the\pgf@pathminy}}%
+    {\noexpand\pgfpoint{\the\pgf@pathmaxx}{\the\pgf@pathmaxy}}%
+  }%
+  \tikz@mode% installs the mode settings
+  % Rendering pipeline:  
+  % 
+  % Step 1: Setup options
+  % 
+  \ifx\tikz@options\@empty%
+  \else%
+    \pgfsys@beginscope%
+      \begingroup%
+      \tikz@options%
+  \fi%
+  % 
+  % Step 2: Do a fill if shade follows.
+  %
+  \iftikz@mode@fill%
+    \iftikz@mode@shade%
+      \pgfprocessround{\pgfsyssoftpath@currentpath}{\pgfsyssoftpath@currentpath}% change the current path
+      \pgfsyssoftpath@invokecurrentpath%
+      \pgfsys@fill%
+      \tikz@mode@fillfalse% no more filling...
+    \fi%
+  \fi%
+  % 
+  % Step 3: Do a shade if necessary.
+  %
+  \iftikz@mode@shade%
+    \pgfprocessround{\pgfsyssoftpath@currentpath}{\pgfsyssoftpath@currentpath}% change the current path
+    \pgfshadepath{\tikz@shading}{\tikz@shade@angle}%
+    \tikz@mode@shadefalse% no more shading...
+  \fi%
+  % 
+  % Step 4: Double stroke, if necessary
+  %
+  \iftikz@mode@draw%
+    \iftikz@mode@double%
+      % Change line width
+      \begingroup%
+        \pgfsys@beginscope%
+          \pgf@x=2\pgflinewidth%
+          \advance\pgf@x by\tikz@double@width@distance%
+          \pgflinewidth=\pgf@x%
+          \pgfsetlinewidth{\the\pgflinewidth}%
+    \fi%
+  \fi%
+  % 
+  % Step 5: Do stroke/fill/clip as needed
+  %
+  \edef\tikz@temp{\noexpand\pgfusepath{%
+    \iftikz@mode@fill fill,\fi%
+    \iftikz@mode@draw draw,\fi%
+    \iftikz@mode@clip clip,\fi%
+    }}%
+  \tikz@temp%
+  \tikz@mode@fillfalse% no more filling
+  % 
+  % Step 6: Double stroke, if necessary
+  %
+  \iftikz@mode@draw%
+    \iftikz@mode@double%
+          \pgfsyssoftpath@setcurrentpath\pgf@last@used@path% reinstall
+          \pgf@x=\tikz@double@width@distance%
+          \pgfsetlinewidth{\the\pgf@x}%
+          \pgfsetstrokecolor{\tikz@double@color}%
+          \pgfsyssoftpath@flushcurrentpath%
+          \pgfsys@stroke%
+        \pgfsys@endscope%
+        \pgf@add@arrows@as@needed
+      \endgroup%
+    \fi%
+  \fi%
+  \tikz@mode@drawfalse% no more stroking
+  % 
+  % Step 7: Add labels and nodes
+  %
+  \copy\tikz@figbox%
+  \setbox\tikz@figbox=\box\voidb@x%
+  %
+  % Step 8: Close option brace
+  %
+  \ifx\tikz@options\@empty%
+  \else%
+      \endgroup%
+    \pgfsys@endscope%
+    \iftikz@mode@clip%
+      \PackageError{tikz}{Extra options not allowed for clipping path command.}{}%
+    \fi%
+  \fi%
+  \iftikz@mode@clip%
+    \aftergroup\pgf@relevantforpicturesizefalse%
+  \fi%
+  \iftikz@mode@boundary%
+    \aftergroup\pgf@relevantforpicturesizefalse%
+  \fi%
+  \endgroup%
+  \global\pgflinewidth=\tikzscope@linewidth%
+}
+
+
+
+
+\def\tikz@skip#1{\tikz@scan@next@command#1}
+\def\tikz@expand{%
+  \advance\tikz@expandcount by -1%
+  \ifnum\tikz@expandcount<0\relax%
+    \PackageError{tikz}{Giving up on this path}{}%
+    \let\@next=\tikz@finish%
+  \else%
+    \let\@next=\tikz@@expand
+  \fi%
+  \@next}
+
+\def\tikz@@expand{%
+  \expandafter\tikz@scan@next@command\@let@token}
+
+
+
+% Syntax for scopes: 
+% {scoped path commands}
+
+\def\tikz@beginscope{\begingroup\tikz@scan@next@command}
+\def\tikz@endscope{%
+  \global\setbox\tikz@tempbox=\copy\tikz@figbox%
+  \endgroup%
+  \setbox\tikz@figbox=\box\tikz@tempbox%
+  \tikz@scan@next@command}
+
+
+% Syntax for pgfextra: 
+% \pgfextra {normal tex text}
+
+\long\def\tikz@extra#1{#1\tikz@scan@next@command}
+\def\pgfextra{pgfextra}
+
+
+% Syntax for \foreach: 
+% \foreach \var in {list} {path text}
+%
+% Example:
+%
+% \draw (0,0) \foreach \x in {1,2,3} {-- (\x,0) circle (1cm)} -- (5,5);
+
+\def\tikz@foreach{%
+  \def\pgffor@beginhook{\setbox\tikz@figbox=\box\tikz@tempbox\expandafter\tikz@scan@next@command\@firstofone}%
+  \def\pgffor@endhook{\pgfextra{\global\setbox\tikz@tempbox=\copy\tikz@figbox\@gobble}}%
+  \def\pgffor@afterhook{\setbox\tikz@figbox=\box\tikz@tempbox\tikz@scan@next@command}%
+  \global\setbox\tikz@tempbox=\copy\tikz@figbox%
+  \foreach}
+
+% Syntax for againpath: 
+% \againpath \somepathname
+
+\def\tikz@command@againpath#1{%
+  \pgfextra{%
+    \pgfsyssoftpath@getcurrentpath\tikz@temp%
+    \expandafter\g@addto@macro\expandafter\tikz@temp\expandafter{#1}%
+    \pgfsyssoftpath@setcurrentpath\tikz@temp%
+  }
+}
+
+
+
+
+%
+% When this if is set, a just-scanned point is a shape and its border
+% position still needs to be determined, depending on subsequent
+% commands. 
+%
+
+\newif\iftikz@shapeborder
+
+
+% Syntax for moveto: 
+% <point>
+\def\tikz@movetoabs{\tikz@moveto(}
+\def\tikz@movetorel{\tikz@moveto+}
+\def\tikz@moveto{%
+  \tikz@scan@one@point{\tikz@@moveto}}
+\def\tikz@@moveto#1{%
+  \tikz@make@last@position{#1}%
+  \iftikz@shapeborder%
+    % ok, the moveto will have to wait. flag that we have a moveto in
+    % wainting:
+    \edef\tikz@moveto@waiting{\tikz@shapeborder@name}%
+  \else%
+    \pgfpathmoveto{\tikz@last@position}%
+    \let\tikz@moveto@waiting=\relax%
+  \fi%
+  \tikz@scan@next@command%
+}
+
+\let\tikz@moveto@waiting=\relax % normally, nothing is waiting...
+
+\def\tikz@flush@moveto{%
+  \ifx\tikz@moveto@waiting\relax%
+  \else%
+    \pgfpathmoveto{\tikz@last@position}%
+  \fi%
+  \let\tikz@moveto@waiting=\relax%
+}
+
+
+\def\tikz@flush@moveto@toward#1#2#3{%
+  % #1 = a point towards which the last moveto should be corrected
+  % #2 = a dimension to which the corrected x-coordinate should be stored
+  % #3 = a dimension for the corrected y-coordinate
+  \ifx\tikz@moveto@waiting\relax%
+    % do nothing
+  \else%
+    \pgf@process{\pgfpointshapeborder{\tikz@moveto@waiting}{#1}}%
+    #2=\pgf@x%
+    #3=\pgf@y%
+    \edef\tikz@timer@start{\noexpand\pgfpoint{\the\pgf@x}{\the\pgf@y}}%
+    \pgfpathmoveto{\pgfpoint{\pgf@x}{\pgf@y}}%
+  \fi%
+  \let\tikz@moveto@waiting=\relax%
+}
+
+
+%
+% Collecting labels on the path 
+%
+
+\def\tikz@collect@coordinate@onpath#1coordinate{%
+  \@ifnextchar[{\tikz@@collect@coordinate@opt#1}{\tikz@@collect@coordinate@opt#1[]}}%}
+\def\tikz@@collect@coordinate@opt#1[#2]{%
+  \@ifnextchar({\tikz@@collect@coordinate#1[#2]}{%
+  \tikz@collect@label@onpath#1node[shape=coordinate,#2]{}}}%}
+\def\tikz@@collect@coordinate#1[#2](#3){%
+  \tikz@collect@label@onpath#1node[shape=coordinate,#2](#3){}}
+
+\def\tikz@collect@label@onpath#1node{%
+  \expandafter\def\expandafter\tikz@collected@onpath\expandafter{\tikz@collected@onpath node}%
+  \tikz@collect@label@scan#1}
+
+\def\tikz@collect@label@scan#1{%  
+  \@ifnextchar({\tikz@collect@paran#1}%
+  {\@ifnextchar[{\tikz@collect@options#1}%
+    {\@ifnextchar\bgroup{\tikz@collect@arg#1}%
+      {#1}}}%
+}%}}
+
+\def\tikz@collect@paran#1(#2){%
+  \expandafter\def\expandafter\tikz@collected@onpath\expandafter{\tikz@collected@onpath(#2)}%
+  \tikz@collect@label@scan#1%
+}
+\def\tikz@collect@options#1[#2]{%
+  \expandafter\def\expandafter\tikz@collected@onpath\expandafter{\tikz@collected@onpath[#2]}%
+  \tikz@collect@label@scan#1%
+}
+\def\tikz@collect@arg#1#2{%
+  \expandafter\def\expandafter\tikz@collected@onpath\expandafter{\tikz@collected@onpath{#2}}%
+  #1%
+}
+
+
+\def\tikz@invoke@collected@onpath{%
+  \tikz@node@is@a@labeltrue%
+  \let\tikz@temp=\tikz@collected@onpath%
+  \let\tikz@collected@onpath=\@empty%
+  \expandafter\tikz@scan@next@command\tikz@temp\pgf@stop%
+  \tikz@node@is@a@labelfalse%
+}
+
+
+
+
+% Syntax for lineto: 
+% -- <point>
+
+\def\tikz@lineto{%
+  \@ifnextchar |%
+  {\expandafter\tikz@hv@lineto\@gobble}%
+  {\expandafter\@ifnextchar\tikz@activebar{\expandafter\tikz@hv@lineto\@gobble}%
+    {\expandafter\tikz@lineto@mid\@gobble}}}
+\def\tikz@lineto@mid{%
+  \@ifnextchar n{\tikz@collect@label@onpath\tikz@lineto@mid}%
+  {%
+    \@ifnextchar c{\tikz@close}{%
+      \@ifnextchar p{\pgfsetlinetofirstplotpoint\expandafter\tikz@plot\@gobble}%
+        {\tikz@scan@one@point{\tikz@@lineto}}}}}
+\def\tikz@@lineto#1{%
+  % Record the starting point for later labels on the path:
+  \edef\tikz@timer@start{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}
+  \iftikz@shapeborder%
+    % ok, target is a shape. recalculate end
+    \pgf@process{\pgfpointshapeborder{\tikz@shapeborder@name}{\tikz@last@position}}%
+    \tikz@make@last@position{\pgfpoint{\pgf@x}{\pgf@y}}%
+    \tikz@flush@moveto@toward{\tikz@last@position}\pgf@x\pgf@y%
+    \tikz@path@lineto{\tikz@last@position}%
+    \edef\tikz@timer@end{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}%
+    \tikz@make@last@position{#1}%
+    \edef\tikz@moveto@waiting{\tikz@shapeborder@name}%    
+  \else%
+    % target is a reasonable point...
+    % Record the starting point for later labels on the path:
+    \tikz@make@last@position{#1}%
+    \tikz@flush@moveto@toward{\tikz@last@position}\pgf@x\pgf@y%
+    \tikz@path@lineto{\tikz@last@position}%
+    \edef\tikz@timer@end{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}%
+  \fi%
+  \let\tikz@timer=\tikz@timer@line%
+  \tikz@scan@next@command%
+}
+
+% snake or lineto?
+\def\tikz@path@lineto#1{%
+  \iftikz@snaked%
+    \pgfpathsnakesto{\tikz@presnake,{\tikz@snake}{\tikz@mainsnakelength},\tikz@postsnake}{#1}%
+  \else%
+    \pgfpathlineto{#1}%
+  \fi%
+}
+
+
+% Syntax for lineto horizontal/vertical: 
+% -| <point>
+
+\def\tikz@hv@lineto{%
+  \@ifnextchar n
+  {\tikz@collect@label@onpath\tikz@hv@lineto}
+  {\@ifnextchar c{\tikz@collect@coordinate@onpath\tikz@hv@lineto}%
+    {\tikz@scan@one@point{\tikz@@hv@lineto}}}}
+\def\tikz@@hv@lineto#1{%
+  \edef\tikz@timer@start{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}%
+  \pgf@yc=\tikz@lasty%
+  \tikz@make@last@position{#1}%
+  \tikz@flush@moveto@toward{\pgfpoint{\tikz@lastx}{\pgf@yc}}\pgf@x\pgf@yc%
+  \iftikz@shapeborder%
+    % ok, target is a shape. have to work now:
+    {%
+      \pgf@process{\pgfpointshapeborder{\tikz@shapeborder@name}{\pgfpoint{\tikz@lastx}{\pgf@yc}}}%
+      \tikz@make@last@position{\pgfpoint{\pgf@x}{\pgf@y}}%
+      \tikz@path@lineto{\pgfpoint{\tikz@lastx}{\pgf@yc}}%
+      \tikz@path@lineto{\tikz@last@position}%
+      \xdef\tikz@timer@end@temp{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}% move out of group
+    }%
+    \let\tikz@timer@end=\tikz@timer@end@temp%
+    \edef\tikz@moveto@waiting{\tikz@shapeborder@name}%    
+  \else%
+    \tikz@path@lineto{\pgfpoint{\tikz@lastx}{\pgf@yc}}%
+    \tikz@path@lineto{\tikz@last@position}%
+    \edef\tikz@timer@end{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}% move out of group
+  \fi%
+  \let\tikz@timer=\tikz@timer@hvline%
+  \tikz@scan@next@command%
+}
+
+% Syntax for lineto vertical/horizontal: 
+% |- <point>
+
+\def\tikz@vh@lineto-{\tikz@vh@lineto@next}
+\def\tikz@vh@lineto@next{%
+  \@ifnextchar n
+  {\tikz@collect@label@onpath\tikz@vh@lineto@next}
+  {\@ifnextchar c{\tikz@collect@coordinate@onpath\tikz@vh@lineto@next}%
+    {\tikz@scan@one@point\tikz@@vh@lineto}}}
+\def\tikz@@vh@lineto#1{%
+  \edef\tikz@timer@start{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}%
+  \pgf@xc=\tikz@lastx%
+  \tikz@make@last@position{#1}%
+  \tikz@flush@moveto@toward{\pgfpoint{\pgf@xc}{\tikz@lasty}}\pgf@xc\pgf@y%
+  \iftikz@shapeborder%
+    % ok, target is a shape. have to work now:
+    {%
+      \pgf@process{\pgfpointshapeborder{\tikz@shapeborder@name}{\pgfpoint{\pgf@xc}{\tikz@lasty}}}%
+      \tikz@make@last@position{\pgfpoint{\pgf@x}{\pgf@y}}%
+      \tikz@path@lineto{\pgfpoint{\pgf@xc}{\tikz@lasty}}%
+      \tikz@path@lineto{\tikz@last@position}%
+      \xdef\tikz@timer@end@temp{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}% move out of group
+    }%
+    \let\tikz@timer@end=\tikz@timer@end@temp%
+    \edef\tikz@moveto@waiting{\tikz@shapeborder@name}%    
+  \else%
+    \tikz@path@lineto{\pgfpoint{\pgf@xc}{\tikz@lasty}}%
+    \tikz@path@lineto{\tikz@last@position}%
+    \edef\tikz@timer@end{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}%
+  \fi%
+  \let\tikz@timer=\tikz@timer@vhline%
+  \tikz@scan@next@command%
+}
+
+% Syntax for cycle: 
+% -- cycle
+\def\tikz@close c{%
+  \@ifnextchar o{\tikz@collect@coordinate@onpath\tikz@lineto@mid c}% oops, a coordinate
+  {\tikz@@close c}}%
+\def\tikz@@close cycle{%
+  \tikz@flush@moveto%
+  \pgfpathclose%
+  \def\pgfstrokehook{}%
+  \let\tikz@timer=\@undefined%
+  \tikz@scan@next@command%
+}
+
+
+% Syntax for options: 
+% [options]
+\def\tikz@parse@options#1]{%
+  \tikz@setkeys{#1}%
+  \tikz@scan@next@command%
+}
+
+
+
+% Syntax for edge from parent: 
+% edge from parent [options]
+\def\tikz@edgetoparent dge from parent{\@ifnextchar[\tikz@@edgetoparent{\tikz@@edgetoparent[]}}%}
+\def\tikz@@edgetoparent[#1]{%
+  \let\tikz@edge@to@parent@needed=\@empty%
+  \tikz@node@is@a@labeltrue%
+  \tikz@scan@next@command [style=edge from parent,#1] \tikz@edge@to@parent@path%
+}
+
+
+% Syntax for bezier curves
+% .. controls(point) and (point) .. (target)
+% .. controls(point) .. (target) 
+% .. (target) % currently not supported
+
+\def\tikz@dot.{\tikz@@dot}%
+\def\tikz@@dot{%
+  \@ifnextchar n%
+  {\tikz@collect@label@onpath\tikz@@dot}%
+  {\@ifnextchar c{\tikz@curveto@double}{\tikz@curveto@auto}}}
+
+\def\tikz@curveto@double co{%
+  \@ifnextchar o{\tikz@collect@coordinate@onpath\tikz@@dot co}
+  {\tikz@cureveto@@double}}
+\def\tikz@cureveto@@double ntrols#1{%
+  \tikz@scan@one@point\tikz@curveA#1%
+}
+\def\tikz@curveA#1{%
+  \edef\tikz@timer@start{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}%
+  {%
+    \tikz@make@last@position{#1}%
+    \xdef\tikz@curve@first{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}%
+  }%
+  \@ifnextchar a
+  {\tikz@curveBand}%
+  {\let\tikz@curve@second\tikz@curve@first\tikz@curveCdots}%
+}
+\def\tikz@curveBand and{%
+  \tikz@scan@one@point\tikz@curveB%
+}
+\def\tikz@curveB#1{%
+  \def\tikz@curve@second{#1}%
+  \tikz@curveCdots}
+\def\tikz@curveCdots{%
+  \afterassignment\tikz@curveCdot\let\@next=}
+\def\tikz@curveCdot.{%
+  \ifx\@next.%
+  \else%
+    \PackageError{tikz}{Dot expected}{}%
+  \fi%
+  \tikz@updatecurrenttrue%
+  \tikz@curveCcheck%
+}
+\def\tikz@curveCcheck{%
+  \@ifnextchar n%
+  {\tikz@collect@label@onpath\tikz@curveCcheck}
+  {\@ifnextchar c{\tikz@collect@coordinate@onpath\tikz@curveCcheck}
+    {\tikz@scan@one@point\tikz@curveC}}%
+}
+\def\tikz@curveC#1{%
+  \tikz@make@last@position{#1}%
+  \edef\tikz@curve@third{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}%
+  {%
+    \tikz@lastxsaved=\tikz@lastx%
+    \tikz@lastysaved=\tikz@lasty%
+    \tikz@make@last@position{\tikz@curve@second}%
+    \xdef\tikz@curve@second{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}%
+  }%
+  %
+  % Start recalculating things in case start and end are shapes.
+  %
+  % First, the start:
+  \ifx\tikz@moveto@waiting\relax%
+  \else%
+    \pgf@process{\pgfpointshapeborder{\tikz@moveto@waiting}{\tikz@curve@first}}%
+    \edef\tikz@timer@start{\noexpand\pgfpoint{\the\pgf@x}{\the\pgf@y}}%
+    \pgfpathmoveto{\pgfpoint{\pgf@x}{\pgf@y}}%
+  \fi%
+  \let\tikz@timer@cont@one=\tikz@curve@first%
+  \let\tikz@timer@cont@two=\tikz@curve@second%    
+  % Second, the end:
+  \iftikz@shapeborder%
+    % ok, target is a shape. recalculate third
+    {%
+      \pgf@process{\pgfpointshapeborder{\tikz@shapeborder@name}{\tikz@curve@second}}%
+      \tikz@make@last@position{\pgfpoint{\pgf@x}{\pgf@y}}%
+      \edef\tikz@curve@third{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}%
+      \pgfpathcurveto{\tikz@curve@first}{\tikz@curve@second}{\tikz@curve@third}%
+      \global\let\tikz@timer@end@temp=\tikz@curve@third% move out of group
+    }%
+    \let\tikz@timer@end=\tikz@timer@end@temp%
+    \edef\tikz@moveto@waiting{\tikz@shapeborder@name}%    
+  \else%
+    \pgfpathcurveto{\tikz@curve@first}{\tikz@curve@second}{\tikz@curve@third}%
+    \let\tikz@timer@end=\tikz@curve@third
+    \let\tikz@moveto@waiting=\relax%
+  \fi%
+  \let\tikz@timer=\tikz@timer@curve%  
+  \tikz@scan@next@command%
+}
+
+
+% Syntax for rectangles: 
+% rectangle <corner point> 
+\def\tikz@rect ectangle{%
+  \tikz@flush@moveto%
+  \edef\tikz@timer@start{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}%
+  \tikz@@rect}%
+\def\tikz@@rect{%
+  \@ifnextchar n
+  {\tikz@collect@label@onpath\tikz@@rect}
+  {\@ifnextchar c{\tikz@collect@coordinate@onpath\tikz@@rect}%
+    {
+      \pgf@xa=\tikz@lastx\relax%
+      \pgf@ya=\tikz@lasty\relax%
+      \tikz@scan@one@point\tikz@rectB}}}
+\def\tikz@rectB#1{%
+  \tikz@make@last@position{#1}%
+  \edef\tikz@timer@end{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}%
+  \let\tikz@timer=\tikz@timer@line%  
+  \pgfpathmoveto{\pgfpoint{\pgf@xa}{\pgf@ya}}%
+  \tikz@path@lineto{\pgfpoint{\pgf@xa}{\tikz@lasty}}%
+  \tikz@path@lineto{\pgfpoint{\tikz@lastx}{\tikz@lasty}}%
+  \tikz@path@lineto{\pgfpoint{\tikz@lastx}{\pgf@ya}}%
+  \tikz@path@lineto{\pgfpoint{\pgf@xa}{\pgf@ya}}%
+  \pgfpathclose%
+  \pgfpathmoveto{\pgfpoint{\tikz@lastx}{\tikz@lasty}}%
+  \def\pgfstrokehook{}%
+  \tikz@scan@next@command%
+}
+
+
+
+% Syntax for grids: 
+% grid <corner point> 
+\def\tikz@grid rid{%
+  \tikz@flush@moveto%
+  \pgf@xa=\tikz@lastx\relax%
+  \pgf@ya=\tikz@lasty\relax%
+  \tikz@scan@one@point\tikz@gridB}%
+\def\tikz@gridB#1{%
+  \tikz@make@last@position{#1}%
+  \pgfpathgrid[stepx=\tikz@grid@x,stepy=\tikz@grid@y]%
+    {\pgfpoint{\pgf@xa}{\pgf@ya}}{\pgfpoint{\tikz@lastx}{\tikz@lasty}}%
+  \tikz@scan@next@command%
+}
+
+
+
+% Syntax for plot: 
+% plot [local options] ...    % starts with a moveto
+% -- plot [local options] ... % starts with a lineto
+\def\tikz@plot lot{%
+  \tikz@flush@moveto%
+  \@ifnextchar[{\tikz@@plot}{\tikz@@plot[]}}%}
+\def\tikz@@plot[#1]{%
+  \begingroup%
+    \let\tikz@options=\@empty%
+    \tikz@every@style{every plot}%
+    \tikz@setkeys{#1}%
+    \@ifnextchar f{\tikz@plot@f}%
+    {\@ifnextchar c{\tikz@plot@scan@points}%
+      {\PackageError{tikz}{Cannot parse this plotting data}{}%
+       \endgroup}}}
+\def\tikz@plot@f f{\@ifnextchar i{\tikz@plot@file}{\tikz@plot@function}}
+
+\def\tikz@plot@file ile#1{\def\tikz@plot@data{\pgfplotxyfile{#1}}\tikz@@@plot}%
+\def\tikz@plot@scan@points coordinates#1{%
+  \pgfplothandlerrecord\tikz@plot@data%
+  \pgfplotstreamstart%
+  \@ifnextchar\pgf@stop{\pgfplotstreamend\expandafter\tikz@@@plot\@gobble}
+  {\tikz@scan@one@point\tikz@plot@next@point}%
+  #1\pgf@stop%
+}
+\def\tikz@plot@next@point#1{%
+  \pgfplotstreampoint{#1}%
+  \@ifnextchar\pgf@stop{\pgfplotstreamend\expandafter\tikz@@@plot\@gobble}%
+  {\tikz@scan@one@point\tikz@plot@next@point}%
+}  
+\def\tikz@plot@function unction#1{%
+  \def\tikz@plot@filename{\tikz@plot@prefix\tikz@plot@id}%  
+  \iftikz@plot@raw@gnuplot%
+    \def\tikz@plot@data{\pgfplotgnuplot[\tikz@plot@filename]{#1}}%
+  \else%
+    \iftikz@plot@parametric%   
+      \def\tikz@plot@data{\pgfplotgnuplot[\tikz@plot@filename]{%
+          set samples \tikz@plot@sampels;
+          set parametric;
+          plot [t=\tikz@plot@domain] #1}}%
+    \else%
+      \def\tikz@plot@data{\pgfplotgnuplot[\tikz@plot@filename]{%
+          set samples \tikz@plot@sampels;
+          plot [x=\tikz@plot@domain] #1}}%
+    \fi%
+  \fi%
+  \tikz@@@plot%
+}
+
+\def\tikz@plot@no@resample{%
+  \IfFileExists{\tikz@plot@filename.table}%
+  {\def\tikz@plot@data{\pgfplotxyfile{\tikz@plot@filename.table}}}%
+  {}%
+}
+
+
+\def\tikz@@@plot{%
+    \def\pgfplotlastpoint{\pgfpointorigin}%
+    \tikz@plot@handler%
+    \tikz@plot@data%
+    \global\let\tikz@@@temp=\pgfplotlastpoint%
+    \ifx\tikz@plot@mark\@empty%
+    \else%
+      % Marks are drawn after the path.
+      \setbox\tikz@figbox=\hbox{%
+        \unhbox\tikz@figbox%
+        \hbox{{%
+          \pgfinterruptpath%
+            \pgfscope%
+              \let\tikz@options=\@empty%
+              \let\tikz@transform=\@empty%
+              \expandafter\tikz@setkeys\expandafter{\tikz@plot@mark@options}%
+              \tikz@options%
+              \pgfplothandlermark{\tikz@transform\pgfuseplotmark{\tikz@plot@mark}}%
+              \tikz@plot@data%
+            \endpgfscope
+          \endpgfinterruptpath%
+        }}%
+      }%
+    \fi%
+    \global\setbox\tikz@tempbox=\copy\tikz@figbox%
+  \endgroup%
+  \setbox\tikz@figbox=\box\tikz@tempbox%  
+  \tikz@make@last@position{\tikz@@@temp}%  
+  \tikz@scan@next@command%
+}
+
+
+\pgfdeclareplotmark{ball}
+{%
+  \def\tikz@shading{ball}%
+  \shade (0,0) circle (\pgfplotmarksize);%
+}
+
+
+
+
+% Syntax for cosine curves:
+% cos <end of quarter-period>
+\def\tikz@cosine s{\tikz@scan@one@point\tikz@@cosine}
+\def\tikz@@cosine#1{%
+  \tikz@flush@moveto%
+  \pgf@process{#1}%
+  \pgf@xc=\pgf@x%
+  \pgf@yc=\pgf@y%
+  \advance\pgf@xc by-\tikz@lastx%
+  \advance\pgf@yc by-\tikz@lasty%
+  \advance\tikz@lastx by\pgf@xc%
+  \advance\tikz@lasty by\pgf@yc%
+  \tikz@lastxsaved=\tikz@lastx%
+  \tikz@lastysaved=\tikz@lasty%
+  \tikz@updatecurrenttrue%
+  \pgfpathcosine{\pgfpoint{\pgf@xc}{\pgf@yc}}%
+  \tikz@scan@next@command%
+}
+
+% Syntax for sine curves:
+% sin <end of quarter-period>
+\def\tikz@sine in{\tikz@scan@one@point\tikz@@sine}
+\def\tikz@@sine#1{%
+  \tikz@flush@moveto%
+  \pgf@process{#1}%
+  \pgf@xc=\pgf@x%
+  \pgf@yc=\pgf@y%
+  \advance\pgf@xc by-\tikz@lastx%
+  \advance\pgf@yc by-\tikz@lasty%
+  \advance\tikz@lastx by\pgf@xc%
+  \advance\tikz@lasty by\pgf@yc%
+  \tikz@lastxsaved=\tikz@lastx%
+  \tikz@lastysaved=\tikz@lasty%
+  \tikz@updatecurrenttrue%
+  \pgfpathsine{\pgfpoint{\pgf@xc}{\pgf@yc}}%
+  \tikz@scan@next@command%
+}
+
+% Syntax for parabolas: 
+% parabola[options] bend <coordinate> <coordinate>
+\def\tikz@parabola arabola{%
+  \@ifnextchar[{\tikz@parabola@options}{\tikz@parabola@options[]}}%}
+
+\def\tikz@parabola@options[#1]{%
+  \def\tikz@parabola@option{#1}%
+  \@ifnextchar b{\tikz@parabola@scan@bend}{\tikz@scan@one@point\tikz@parabola@semifinal}}
+\def\tikz@parabola@scan@bend bend{\tikz@scan@one@point\tikz@parabola@scan@bendB}
+\def\tikz@parabola@scan@bendB#1{%
+  \def\tikz@parabola@bend{#1}%
+  \tikz@scan@one@point\tikz@parabola@semifinal%
+}
+\def\tikz@parabola@semifinal#1{%
+  % Save original start:
+  \pgf@xb=\tikz@lastx%
+  \pgf@yb=\tikz@lasty%
+  \tikz@make@last@position{#1}%
+  \pgf@xc=\tikz@lastx%
+  \pgf@yc=\tikz@lasty%
+  \begingroup% now calculate bend:
+    \expandafter\tikz@setkeys\expandafter{\tikz@parabola@option}%
+    \tikz@lastxsaved=\tikz@parabola@bend@factor\tikz@lastx%
+    \tikz@lastysaved=\tikz@parabola@bend@factor\tikz@lasty%
+    \advance\tikz@lastxsaved by\pgf@xb%
+    \advance\tikz@lastysaved by\pgf@yb%
+    \advance\tikz@lastxsaved by-\tikz@parabola@bend@factor\pgf@xb%
+    \advance\tikz@lastysaved by-\tikz@parabola@bend@factor\pgf@yb%
+    \expandafter\tikz@make@last@position\expandafter{\tikz@parabola@bend}%
+    % Calculate delta from bend
+    \advance\pgf@xc by-\tikz@lastx%
+    \advance\pgf@yc by-\tikz@lasty%
+    % Ok, now calculate delta to bend
+    \advance\tikz@lastx by-\pgf@xb%
+    \advance\tikz@lasty by-\pgf@yb%
+    \xdef\tikz@parabola@b{{\noexpand\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}{\noexpand\pgfpoint{\the\pgf@xc}{\the\pgf@yc}}}%
+  \endgroup%
+  \expandafter\pgfpathparabola\tikz@parabola@b%
+  \tikz@scan@next@command%
+}
+
+
+% Syntax for circles:
+% circle (radius)
+%
+% Syntax for ellipses:
+% ellipse (x-radius/y-radius)
+\def\tikz@circle ircle{\tikz@@circle}
+\def\tikz@ellipse llipse{\tikz@@circle}
+\def\tikz@@circle{%
+  \tikz@flush@moveto%
+  \@ifnextchar(\tikz@@@circle{%)
+    \advance\tikz@expandcount by -1%
+    \ifnum\tikz@expandcount<0\relax%
+      \let\@next=\tikz@@circle@scangiveup%
+    \else%
+      \let\@next=\tikz@@circle@scanexpand%
+    \fi%
+    \@next%
+  }%
+}
+\def\tikz@@circle@scanexpand{\expandafter\tikz@@circle}
+\def\tikz@@circle@scangiveup#1{\PackageError{tikz}{Cannot parse this radius}{}#1{\tikz@scan@next@command}}
+\def\tikz@@@circle(#1){%
+  \in@{ and }{#1}%
+  \ifin@%
+    \tikz@@ellipseB(#1)%
+  \else%
+    \tikz@@ellipseB(#1 and #1)%
+  \fi%
+  \tikz@scan@next@command%
+}
+\def\tikz@@ellipseB(#1 and #2){%
+  \pgfpathellipse{\tikz@last@position}{\pgfpoint{#1}{0pt}}{\pgfpoint{0pt}{#2}}%
+}
+
+% Syntax 1 for arcs:
+% arc (start angle:end angle:radius)
+%
+% Syntax 2 for arcs:
+% arc (start angle:end angle:x-radius/y-radius)
+\def\tikz@arcA rc{%
+  \tikz@flush@moveto%
+  \@ifnextchar({\tikz@@arcto}{\expandafter\tikz@arcA\expandafter r\expandafter c}}
+
+\def\tikz@@arcto(#1){%
+  \edef\tikz@temp{(#1)}%
+   \expandafter\tikz@@@arcto@and\tikz@temp%
+}
+
+\def\tikz@@@arcto@and(#1:#2:#3){%
+  \in@{ and }{#3}%
+  \ifin@% 
+    \tikz@parse@arc@and(#1:#2:#3)%
+  \else%
+    \tikz@@@arcto(#1:#2:#3)%
+  \fi%
+}
+
+\def\tikz@parse@arc@and(#1:#2:#3 and #4){%
+  \tikz@@@arcto(#1:#2:#3/#4)%
+}
+
+\def\tikz@@@arcto(#1:#2:#3){%
+  \pgfpatharc{#1}{#2}{#3}%
+  \pgf@process{\pgfpointpolar{#1}{#3}}%
+  \advance\tikz@lastx by-\pgf@x%
+  \advance\tikz@lasty by-\pgf@y%
+  \pgf@process{\pgfpointpolar{#2}{#3}}%
+  \advance\tikz@lastx by\pgf@x%
+  \advance\tikz@lasty by\pgf@y%
+  \tikz@lastxsaved=\tikz@lastx%
+  \tikz@lastysaved=\tikz@lasty%
+  \tikz@scan@next@command%
+}
+
+
+% Syntax for coordinates:
+% coordinate (coordinate name) at (point)
+% where ``at (point)'' is optional
+\def\tikz@coordinate ordinate{%
+  \@ifnextchar({\tikz@@coordinate}
+  {\tikz@fig ode[shape=coordinate]{}}}%}
+\def\tikz@@coordinate(#1){%
+  \@ifnextchar a{\tikz@@coordinate@at(#1)}
+  {\tikz@fig ode[shape=coordinate](#1){}}}
+\def\tikz@@coordinate@at(#1)at#2(#3){%
+  \tikz@fig ode[shape=coordinate](#1)at(#3){}}
+  
+
+
+% Syntax for nodes:
+% node[options] (node name) {label text}
+%
+% all of [options], (node name) and {label text} are optional. There
+% can be multiple options before the label text as in
+% node[draw] (a) [rotate=10] {text}
+%
+% A label text always ``ends'' the node.
+\def\tikz@fig ode{%
+  \begingroup%
+  \let\tikz@fig@name=\@empty%
+    \begingroup%
+      \let\nodepart=\tikz@nodepart%
+      \let\tikz@options=\@empty%
+      \let\tikz@transform=\@empty%
+      \let\tikz@mode=\@empty%
+      \def\tikz@node@at{\pgfpoint{\the\tikz@lastx}{\the\tikz@lasty}}%
+      \iftikz@node@is@a@label%
+      \else%
+        \let\tikz@time=\@empty%
+      \fi%
+      \tikz@every@style{every node}%
+      \tikz@@scan@fig}%
+\def\tikz@@scan@fig{%
+  \@ifnextchar a{\tikz@fig@scan@at}
+  {\@ifnextchar({\tikz@fig@scan@name}
+    {\@ifnextchar[{\tikz@fig@scan@options}%
+      {\@ifnextchar\bgroup{\tikz@fig@main}%
+      {\PackageError{tikz}{A node must have a (possibly empty) label text}{}%
+       \tikz@fig@main{}}}}}}%}}
+\def\tikz@fig@scan@at at{%
+  \tikz@scan@one@point\tikz@@fig@scan@at}
+\def\tikz@@fig@scan@at#1{%
+  \def\tikz@node@at{#1}\tikz@@scan@fig}%
+\def\tikz@fig@scan@name(#1){\edef\tikz@fig@name{#1}\tikz@@scan@fig}%
+\def\tikz@fig@scan@options[#1]{\tikz@setkeys{#1}\tikz@@scan@fig}%
+\def\tikz@fig@main{\afterassignment\tikz@@fig@main\let\next=}
+\def\tikz@@fig@main{%
+    \@ifundefined{pgf@sh@s@\tikz@shape}%
+    {\PackageError{tikz}%
+      {Unknown shape ``\tikz@shape.'' Using ``rectangle'' instead}{}%
+      \def\tikz@shape{rectangle}}%
+    {}%
+    \tikz@every@style{every \tikz@shape\space node}%
+    \setbox\pgfnodeparttextbox=\hbox%
+      \bgroup%
+        \tikz@every@style{every text node part}%
+        \pgfinterruptpicture%
+          \ifx\tikz@text@width\@empty%
+          \else%
+            \begingroup%
+              \minipage[t]{\tikz@text@width}%
+                \tikz@text@action%
+          \fi%
+          \bgroup%
+            \aftergroup\unskip%
+            \ifx\tikz@textcolor\@empty%
+              \color{.}%
+            \else%
+              \color{\tikz@textcolor}%
+            \fi%
+            \tikz@textfont%  
+            \setbox\tikz@figbox=\box\voidb@x%
+            \tikz@uninstallcommands%
+            \aftergroup\tikz@fig@collectresetcolor%
+            \ignorespaces%
+}
+\def\tikz@fig@collectresetcolor{%
+  \@ifnextchar\reset@color%
+  {\reset@color\afterassignment\tikz@fig@collectresetcolor\let\tikz@temp=}%
+  {\tikz@fig@boxdone}%
+}
+\def\tikz@fig@boxdone{%
+          \ifx\tikz@text@width\@empty%
+          \else%
+              \endminipage%
+            \endgroup%
+          \fi%
+        \endpgfinterruptpicture%
+      \egroup%
+    \@ifnextchar c{\tikz@fig@withchildren}{\@ifnextchar[{\tikz@fig@withchildren}{\tikz@fig@continue}}}%}
+\def\tikz@fig@withchildren{%
+  \ifx\tikz@fig@name\@empty%
+    % Assign a dummy name
+    \global\advance\tikz@fig@count by1\relax
+    \edef\tikz@fig@name{tikz@f@\the\tikz@fig@count}%
+  \fi%
+  \tikz@fig@continue%
+}
+\def\tikz@fig@continue{%
+    \ifx\tikz@text@width\@empty%
+    \else%
+      \setlength{\pgf@x}{\tikz@text@width}%
+      \wd\pgfnodeparttextbox=\pgf@x%
+    \fi%
+    % Possibly, we are ``online''
+    \ifx\tikz@time\@empty%
+      \pgftransformshift{\tikz@node@at}%
+      \iftikz@fullytransformed%
+      \else%
+        \pgftransformresetnontranslations
+      \fi%
+    \else%
+      \tikz@timer%
+    \fi%
+    % Invoke local transformations
+    \tikz@transform%  
+    \setbox\tikz@figbox=\hbox{%
+      \setbox\@tempboxa=\copy\tikz@figbox%
+      \unhbox\@tempboxa%
+      \hbox{{%
+          \pgfinterruptpath%
+            \pgfscope%
+              \tikz@options%
+              \setbox\tikz@figbox=\box\voidb@x%
+              \pgfmultipartnode{\tikz@shape}{\tikz@anchor}{\tikz@fig@name}{%
+                \@tempdima=\pgflinewidth%
+                {\begingroup\tikz@finish}%
+                \global\pgflinewidth=\@tempdima%
+              }%
+            \endpgfscope
+          \endpgfinterruptpath%
+      }}%
+    }%
+    % shift box outside group
+    \global\setbox\tikz@tempbox=\copy\tikz@figbox%
+    \global\let\tikz@last@fig@name=\tikz@fig@name%
+  \endgroup\endgroup%
+  \setbox\tikz@figbox=\box\tikz@tempbox%  
+  \tikz@scan@next@command%
+}
+\let\tikz@fig@continue@orig=\tikz@fig@continue
+
+
+% Syntax for parts of  nodes:
+% node ... {... \nodepart{name} ... \nodepart{name} ...}
+
+\def\tikz@nodepart#1{%
+  \unskip%
+  \gdef\tikz@nodepart@name{#1}%
+  \global\let\tikz@fig@continue=\tikz@nodepart@continue%
+  \@ifnextchar x{\egroup\relax}{\egroup\relax}% gobble spaces
+}
+\def\tikz@nodepart@continue{%
+  \global\let\tikz@fig@continue=\tikz@fig@continue@orig%
+  % Now start new box:
+   \expandafter\setbox\csname pgfnodepart\tikz@nodepart@name box\endcsname=\hbox%
+      \bgroup%
+        \tikz@every@style{every \tikz@nodepart@name\space node part}%
+        \pgfinterruptpicture%
+          \ifx\tikz@text@width\@empty%
+          \else%
+            \begingroup%
+              \minipage[t]{\tikz@text@width}%
+                \tikz@text@action%
+          \fi%
+          \bgroup%
+            \aftergroup\unskip%
+            \ifx\tikz@textcolor\@empty%
+              \color{.}%
+            \else%
+              \color{\tikz@textcolor}%
+            \fi%
+            \tikz@textfont%  
+            \setbox\tikz@figbox=\box\voidb@x%
+            \tikz@uninstallcommands%
+            \aftergroup\tikz@fig@collectresetcolor%
+            \ignorespaces%
+}
+
+
+
+% Syntax for trees:
+% node {...} child [options] {...} child [options] {...} ...
+% node {...} children [options] \var in {list} [options] {...} ...
+
+\def\tikz@children{%
+  % Start collecting the children:
+  \let\tikz@children@list=\@empty%
+  \tikznumberofchildren=0\relax%
+  \tikz@collect@children c}
+
+\def\tikz@collect@children{\@ifnextchar c{\tikz@collect@children@cchar}{\tikz@children@collected}}
+\def\tikz@collect@children@cchar c{\@ifnextchar h{\tikz@collect@child}{\tikz@children@collected c}}
+\def\tikz@collect@child hild{\@ifnextchar[{\tikz@collect@childA}{\tikz@collect@childA[]}}%}
+\def\tikz@collect@childA[#1]{\@ifnextchar f{\tikz@collect@children@foreach[#1]}{\tikz@collect@childB[#1]}}
+\def\tikz@collect@childB[#1]{%
+  \advance\tikznumberofchildren by1\relax
+  \expandafter\def\expandafter\tikz@children@list\expandafter{\tikz@children@list \tikz@childnode[#1]}%
+  \@ifnextchar\bgroup{\tikz@collect@child@code}{\tikz@collect@child@code{}}}
+\def\tikz@collect@child@code#1{%
+  \expandafter\def\expandafter\tikz@children@list\expandafter{\tikz@children@list{#1}}%
+  \tikz@collect@children%
+}
+\def\tikz@collect@children@foreach[#1]foreach#2in#3{%
+  \@ifnextchar\bgroup{\tikz@collect@children@foreachA{#1}{#2}{#3}}{\tikz@collect@children@foreachA{#1}{#2}{#3}{}}}
+\def\tikz@collect@children@foreachA#1#2#3#4{%
+  \expandafter\def\expandafter\tikz@children@list\expandafter
+    {\tikz@children@list\tikz@childrennodes[#1]{#2}{#3}{#4}}%
+  \c@pgf@counta=\tikznumberofchildren%
+  \foreach#2in{#3}%
+  {%
+    \global\advance\c@pgf@counta by1\relax%
+  }%
+  \tikznumberofchildren=\c@pgf@counta%
+  \tikz@collect@children%
+}
+\long\def\tikz@children@collected{%
+  \begingroup%
+    \advance\tikztreelevel by 1\relax%
+    \let\tikz@options=\@empty%
+    \let\tikz@transform=\@empty%
+    \tikz@every@style{level \the\tikztreelevel}%
+    \tikz@options%
+    \tikz@transform%            
+    \let\tikzparentnode=\tikz@last@fig@name%
+    % Transform to center of node
+    \pgftransformshift{\pgfpointanchor{\tikzparentnode}{center}}%
+    \tikznumberofcurrentchild=0\relax%
+    \tikz@children@list%
+    \global\setbox\tikz@tempbox=\copy\tikz@figbox%
+  \endgroup%
+  \setbox\tikz@figbox=\box\tikz@tempbox%  
+  \tikz@scan@next@command%
+}
+
+
+% Syntax for children:
+%
+% children [all children options] \var in {values} [child options] {...}
+\def\tikz@childrennodes[#1]#2#3#4{%
+  \c@pgf@counta=\tikznumberofcurrentchild\relax%
+  \setbox\tikz@tempbox=\box\tikz@figbox%
+  \foreach#2in{#3}{%
+    \tikznumberofcurrentchild=\c@pgf@counta\relax%
+    \setbox\tikz@figbox=\box\tikz@tempbox%
+    \tikz@childnode[#1]{#4}%
+    % we must now make the current child number and the figbox survive
+    % the group
+    \global\c@pgf@counta=\tikznumberofcurrentchild\relax%
+    \global\setbox\tikz@tempbox=\box\tikz@figbox%
+  }%
+  \tikznumberofcurrentchild=\c@pgf@counta\relax%
+  \setbox\tikz@figbox=\box\tikz@tempbox%
+}
+
+
+% Syntax for child:
+%
+% child
+%
+% child[options]
+%
+% child[options] {node (name) {child node text} ...
+%   edge from parent[options] node {label text} node {label text}}
+
+\def\tikz@childnode[#1]#2{%
+  \advance\tikznumberofcurrentchild by1\relax%
+  \setbox\tikz@figbox=\hbox\bgroup%
+    \unhbox\tikz@figbox%
+    \hbox\bgroup\bgroup%
+        \pgfinterruptpath%
+          \pgfscope%
+            \let\tikz@options=\@empty%
+            \let\tikz@transform=\@empty%
+            \tikz@every@style{every child}%
+            \tikz@setkeys{#1}%
+            \tikz@options%
+            \tikz@transform%            
+            \tikz@grow%
+            % Typeset node:
+            \edef\tikz@parent@node@name{[name=\tikzparentnode-\the\tikznumberofcurrentchild,style=every child node]}%
+            \def\tikz@child@node@text{[shape=coordinate]{}}
+            \tikz@parse@child@node#2\pgf@stop%
+            \expandafter\expandafter\expandafter\node
+            \expandafter\tikz@parent@node@name
+              \tikz@child@node@text
+              \pgfextra{\global\let\tikz@childnode@name=\tikz@last@fig@name};%
+            \let\tikzchildnode=\tikz@childnode@name%
+            {%
+              \def\tikz@edge@to@parent@needed{edge from parent}
+              \ifx\tikz@child@node@rest\@empty%
+                \path edge from parent;%
+              \else%
+                \path (0,0) \tikz@child@node@rest \tikz@edge@to@parent@needed;%
+              \fi%
+            }%
+        \endpgfscope%
+      \endpgfinterruptpath%
+    \egroup\egroup%
+  \egroup%
+}
+
+\def\tikz@parse@child@node{%
+  \@ifnextchar n{\tikz@parse@child@node@n}%
+  {\@ifnextchar c{\tikz@parse@child@node@c}%
+    {\tikz@parse@child@node@rest}}}
+\def\tikz@parse@child@node@rest#1\pgf@stop{\def\tikz@child@node@rest{#1}}
+\def\tikz@parse@child@node@c c{\@ifnextchar o{\tikz@parse@child@node@co}{\tikz@parse@child@node@rest c}}
+\def\tikz@parse@child@node@co o{\@ifnextchar o{\tikz@parse@child@node@coordinate}{\tikz@parse@child@node@rest co}}
+\def\tikz@parse@child@node@coordinate ordinate{%
+  \@ifnextchar ({\tikz@@parse@child@node@coordinate}{%
+    \def\tikz@child@node@text{[shape=coordinate]{}}%
+    \tikz@parse@child@node@rest}}%}
+\def\tikz@@parse@child@node@coordinate(#1){%
+  \@ifnextchar a{\tikz@p@c@n@c@at(#1)}{%
+    \def\tikz@child@node@text{[shape=coordinate,name=#1]{}}%
+    \tikz@parse@child@node@rest}}
+\def\tikz@p@c@n@c@at(#1)at#2(#3){%
+  \def\tikz@child@node@text{[shape=coordinate,name=#1]at(#3){}}%
+  \tikz@parse@child@node@rest}%
+\def\tikz@parse@child@node@n node{%
+  \let\tikz@child@node@text=\@empty%
+  \tikz@p@c@s}%
+\def\tikz@p@c@s{%
+  \@ifnextchar a{\tikz@p@c@s@at}
+  {\@ifnextchar ({\tikz@p@c@s@paran}
+    {\@ifnextchar [{\tikz@p@c@s@bra}
+      {\@ifnextchar \bgroup{\tikz@p@c@s@group}
+        {\PackageError{tikz}{Cannot parse this node}{}}}}}}%}}
+\def\tikz@p@c@s@at at#1(#2){%
+  \expandafter\def\expandafter\tikz@child@node@text\expandafter{\tikz@child@node@text at(#2)}
+  \tikz@p@c@s}
+\def\tikz@p@c@s@paran(#1){%
+  \expandafter\def\expandafter\tikz@child@node@text\expandafter{\tikz@child@node@text(#1)}
+  \tikz@p@c@s}
+\def\tikz@p@c@s@bra[#1]{%
+  \expandafter\def\expandafter\tikz@child@node@text\expandafter{\tikz@child@node@text[#1]}
+  \tikz@p@c@s}
+\def\tikz@p@c@s@group#1{%
+  \expandafter\def\expandafter\tikz@child@node@text\expandafter{\tikz@child@node@text{#1}}
+  \tikz@parse@child@node@rest}
+
+
+%
+% Timers
+% 
+
+\def\tikz@timer@line{%
+  \pgftransformlineattime{\tikz@time}{\tikz@timer@start}{\tikz@timer@end}%
+}
+
+\def\tikz@timer@vhline{%
+  \ifdim\tikz@time pt<0.5pt% first half
+    \pgf@process{\tikz@timer@start}%
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \pgf@process{\tikz@timer@end}%
+    \pgf@xb=\tikz@time pt%
+    \pgf@xb=2\pgf@xb%    
+    \edef\tikz@marshal{\noexpand\pgftransformlineattime{\pgf@sys@tonumber{\pgf@xb}}{\noexpand\tikz@timer@start}{%
+        \noexpand\pgfpoint{\the\pgf@xa}{\the\pgf@y}}}%
+    \tikz@marshal%
+  \else% second half
+    \pgf@process{\tikz@timer@start}%
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \pgf@process{\tikz@timer@end}%
+    \pgf@xb=\tikz@time pt%
+    \pgf@xb=2\pgf@xb%
+    \advance\pgf@xb by-1pt%
+    \edef\tikz@marshal{\noexpand\pgftransformlineattime{\pgf@sys@tonumber{\pgf@xb}}%
+      {\noexpand\pgfpoint{\the\pgf@xa}{\the\pgf@y}}{\noexpand\tikz@timer@end}}%
+    \tikz@marshal%
+  \fi%
+}
+
+\def\tikz@timer@hvline{%
+  \ifdim\tikz@time pt<0.5pt% first half
+    \pgf@process{\tikz@timer@start}%
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \pgf@process{\tikz@timer@end}%
+    \pgf@xb=\tikz@time pt%
+    \pgf@xb=2\pgf@xb%    
+    \edef\tikz@marshal{\noexpand\pgftransformlineattime{\pgf@sys@tonumber{\pgf@xb}}{\noexpand\tikz@timer@start}{%
+        \noexpand\pgfpoint{\the\pgf@x}{\the\pgf@ya}}}%
+    \tikz@marshal%
+  \else% second half
+    \pgf@process{\tikz@timer@start}%
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \pgf@process{\tikz@timer@end}%
+    \pgf@xb=\tikz@time pt%
+    \pgf@xb=2\pgf@xb%
+    \advance\pgf@xb by-1pt%
+    \edef\tikz@marshal{\noexpand\pgftransformlineattime{\pgf@sys@tonumber{\pgf@xb}}%
+      {\noexpand\pgfpoint{\the\pgf@x}{\the\pgf@ya}}{\noexpand\tikz@timer@end}}%
+    \tikz@marshal%
+  \fi%
+}
+
+\def\tikz@timer@curve{%
+  \pgftransformcurveattime{\tikz@time}{\tikz@timer@start}{\tikz@timer@cont@one}{\tikz@timer@cont@two}{\tikz@timer@end}%
+}
+
+
+
+
+%
+% Coordinate management
+%
+
+
+% Last position visited
+\def\tikz@last@position{\pgfpoint{\tikz@lastx}{\tikz@lasty}}
+\def\tikz@last@position@saved{\pgfpoint{\tikz@lastxsaved}{\tikz@lastysaved}}
+
+% Make given point the last position visited
+\def\tikz@make@last@position#1{%
+  \pgf@process{#1}%
+  \tikz@lastx=\pgf@x\relax%
+  \tikz@lasty=\pgf@y\relax%
+  \iftikz@updatecurrent%
+    \tikz@lastxsaved=\pgf@x\relax%
+    \tikz@lastysaved=\pgf@y\relax%
+  \fi%
+  \tikz@updatecurrenttrue%
+}
+
+\newif\iftikz@updatecurrent
+\tikz@updatecurrenttrue
+
+
+
+% Scanner: Scans a point or a relative point. 
+% It then calls the first parameter with the argument set to an
+% appropriate pgf command representing that point.
+
+\def\tikz@scan@one@point#1{%
+  \tikz@shapeborderfalse%
+  \@ifnextchar+{\tikz@scan@relative#1}{\tikz@scan@absolute#1}}
+\def\tikz@scan@absolute#1{%
+  \@ifnextchar({\tikz@scan@@absolute#1}%)
+  {%
+    \advance\tikz@expandcount by -1%
+    \ifnum\tikz@expandcount<0\relax%
+      \let\@next=\tikz@@scangiveup%
+    \else%
+      \let\@next=\tikz@@scanexpand
+    \fi%
+    \@next{#1}%
+  }%
+}
+\def\tikz@@scanexpand#1{\expandafter\tikz@scan@one@point\expandafter#1}
+\def\tikz@@scangiveup#1{\PackageError{tikz}{Cannot parse this coordinate}{}#1{\pgfpointorigin}}
+\def\tikz@scan@@absolute#1(#2){%
+  \edef\tikz@temp{(#2)}%
+  \expandafter\tikz@@scan@@absolute\expandafter#1\tikz@temp%
+}
+\def\tikz@@scan@@absolute#1({%
+  \@ifnextchar[% uhoh... options!
+  {\def\tikz@scan@point@recall{#1}\tikz@scan@options}%
+  {\tikz@@@scan@@absolute#1(}%
+}
+
+\def\tikz@scan@options[#1]#2{%
+  \def\tikz@scan@point@options{#1}%
+  \tikz@@@scan@@absolute\tikz@scan@handle@options(#2%
+}
+
+\def\tikz@scan@handle@options#1{%
+  {%
+    % Ok, compute point with options set and zero transformation
+    % matrix:
+    \pgftransformreset%
+    \let\tikz@transform=\@empty%
+    \expandafter\tikz@setkeys\expandafter{\tikz@scan@point@options}%
+    \tikz@transform%
+    \pgf@process{\pgfpointtransformed{#1}}%
+    \xdef\tikz@marshal{\expandafter\noexpand\tikz@scan@point@recall{\noexpand\pgfpoint{\the\pgf@x}{\the\pgf@y}}}%
+  }%
+  \tikz@marshal%  
+}
+
+\def\tikz@@@scan@@absolute#1(#2){%
+  \in@{intersection of}{#2}%
+  \ifin@%
+    \let\@next\tikz@parse@intersection%
+  \else%
+    \in@|{#2}%
+    \ifin@
+      \in@{-|}{#2}%
+      \ifin@
+        \let\@next\tikz@parse@hv%
+      \else%
+        \let\@next\tikz@parse@vh%
+      \fi%
+    \else%
+      \in@:{#2}%
+      \ifin@
+        \let\@next\tikz@parse@polar%
+      \else%
+        \in@,{#2}%
+        \ifin@%      
+          \let\@next\tikz@parse@regular%
+        \else%
+          \let\@next\tikz@parse@node%
+        \fi%
+      \fi%
+    \fi%
+  \fi%
+  \@next#1(#2)%
+}
+
+\newif\iftikz@isdimension
+\def\tikz@checkunit#1{%
+  \@tempdima\z@%
+  \afterassignment\tikz@@checkunit%
+  \@tempdima#1\@tempdima\tikz@unique%
+}
+\def\tikz@@checkunit{\@ifnextchar\tikz@unique{\tikz@checkunit@number}{\tikz@checkunit@dimension}}
+\def\tikz@checkunit@number\tikz@unique{\tikz@isdimensionfalse}
+\def\tikz@checkunit@dimension#1\tikz@unique{\tikz@isdimensiontrue}
+
+\def\tikz@parse@polar#1(#2:#3){%
+  \@ifundefined{tikz@polar@dir@#2}
+  {#1{\pgfpointpolar{#2}{#3}}}
+  {%
+    \edef\tikz@marshal{\noexpand#1{\noexpand\pgfpointpolar{\csname tikz@polar@dir@#2\endcsname}{#3}}}%
+    \tikz@marshal%
+  }%
+}
+\def\tikz@polar@dir@up{90}
+\def\tikz@polar@dir@down{-90}
+\def\tikz@polar@dir@left{180}
+\def\tikz@polar@dir@right{0}
+\def\tikz@polar@dir@north{90}
+\def\tikz@polar@dir@south{-90}
+\def\tikz@polar@dir@east{0}
+\def\tikz@polar@dir@west{180}
+\expandafter\def\csname tikz@polar@dir@north east\endcsname{45}
+\expandafter\def\csname tikz@polar@dir@north west\endcsname{135}
+\expandafter\def\csname tikz@polar@dir@south east\endcsname{-45}
+\expandafter\def\csname tikz@polar@dir@south west\endcsname{-135}
+
+\def\tikz@parse@regular#1(#2,#3){%
+  \in@,{#3}%
+  \ifin@%  
+    \tikz@parse@splitxyz{#1}{#2}#3,%
+  \else%
+    \tikz@checkunit{#2}%
+    \iftikz@isdimension%
+      \def\@next{#1{\pgfpoint{#2}{#3}}}%
+    \else%
+      \def\@next{#1{\pgfpointxy{#2}{#3}}}%
+    \fi%
+  \fi%
+  \@next%
+}
+
+\def\tikz@parse@splitxyz#1#2#3,#4,{%
+  \def\@next{#1{\pgfpointxyz{#2}{#3}{#4}}}%
+}
+
+\def\tikz@coordinate@text{coordinate}
+
+\def\tikz@parse@node#1(#2){%
+  \in@.{#2}% Ok, flag this
+  \ifin@
+    \tikz@calc@anchor#2\tikz@stop%
+  \else%
+    \tikz@calc@anchor#2.center\tikz@stop% to be on the save side, in
+                                % case iftikz@shapeborder is ignored...
+    \expandafter\ifx\csname pgf@sh@ns@#2\endcsname\tikz@coordinate@text%
+    \else
+      \tikz@shapebordertrue%
+      \def\tikz@shapeborder@name{#2}%
+    \fi%
+  \fi%
+  \edef\tikz@marshal{\noexpand#1{\noexpand\pgfpoint{\the\pgf@x}{\the\pgf@y}}}%
+  \tikz@marshal%
+}
+
+\def\tikz@calc@anchor#1.#2\tikz@stop{%
+  \pgfpointanchor{#1}{#2}%
+}
+
+
+\def\tikz@parse@hv#1(#2){%
+  \in@{ -| }{#2}%
+  \ifin@%
+    \let\tikz@next=\tikz@parse@hvboth%
+  \else%
+    \in@{ -|}{#2}%
+    \ifin@%
+      \let\tikz@next=\tikz@parse@hvleft%
+    \else%
+      \in@{-| }{#2}%
+      \ifin@%
+        \let\tikz@next=\tikz@parse@hvright%
+      \else%
+        \let\tikz@next=\tikz@parse@hvdone%
+      \fi%
+    \fi%
+  \fi%
+  \tikz@next#1(#2)}
+\def\tikz@parse@hvboth#1(#2 -| #3){\tikz@parse@vhdone#1(#3|-#2)}
+\def\tikz@parse@hvleft#1(#2 -|#3){\tikz@parse@vhdone#1(#3|-#2)}
+\def\tikz@parse@hvright#1(#2-| #3){\tikz@parse@vhdone#1(#3|-#2)}
+\def\tikz@parse@hvdone#1(#2-|#3){\tikz@parse@vhdone#1(#3|-#2)}
+
+\def\tikz@parse@vh#1(#2){%
+  \in@{ |- }{#2}%
+  \ifin@%
+    \let\tikz@next=\tikz@parse@vhboth%
+  \else%
+    \in@{ |-}{#2}%
+    \ifin@%
+      \let\tikz@next=\tikz@parse@vhleft%
+    \else%
+      \in@{|- }{#2}%
+      \ifin@%
+        \let\tikz@next=\tikz@parse@vhright%
+      \else%
+        \let\tikz@next=\tikz@parse@vhdone%
+      \fi%
+    \fi%
+  \fi%
+  \tikz@next#1(#2)}
+\def\tikz@parse@vhboth#1(#2 |- #3){\tikz@parse@vhdone#1(#2|-#3)}
+\def\tikz@parse@vhleft#1(#2 |-#3){\tikz@parse@vhdone#1(#2|-#3)}
+\def\tikz@parse@vhright#1(#2|- #3){\tikz@parse@vhdone#1(#2|-#3)}
+\def\tikz@parse@vhdone#1(#2|-#3){%
+  {%
+    \tikz@@@scan@@absolute\tikz@parse@vh@mid(#2)%
+    \tikz@@@scan@@absolute\tikz@parse@vh@end(#3)%
+    \xdef\tikz@marshal{\noexpand#1{\noexpand\pgfpoint{\the\pgf@xa}{\the\pgf@ya}}}%
+  }%
+  \tikz@shapeborderfalse%
+  \tikz@marshal%
+}
+\def\tikz@parse@vh@mid#1{\pgf@process{#1}\pgf@xa=\pgf@x}
+\def\tikz@parse@vh@end#1{\pgf@process{#1}\pgf@ya=\pgf@y}
+
+\def\tikz@parse@intersection#1(intersection of #2--#3 and #4--#5){%
+  {%
+    \tikz@@@scan@@absolute\tikz@parse@intersection@a(#2)%
+    \tikz@@@scan@@absolute\tikz@parse@intersection@b(#3)%
+    \tikz@@@scan@@absolute\tikz@parse@intersection@c(#4)%
+    \tikz@@@scan@@absolute\tikz@parse@intersection@d(#5)%
+    \xdef\tikz@marshal{\noexpand#1{\noexpand\pgfpointintersectionoflines%
+        {\noexpand\pgfpoint{\the\pgf@xa}{\the\pgf@ya}}%
+        {\noexpand\pgfpoint{\the\pgf@xb}{\the\pgf@yb}}%
+        {\noexpand\pgfpoint{\the\pgf@xc}{\the\pgf@yc}}%
+        {\noexpand\pgfpoint{\the\pgf@x}{\the\pgf@y}}}}%
+  }%
+  \tikz@shapeborderfalse%
+  \tikz@marshal%  
+}
+
+\def\tikz@parse@intersection@a#1{\pgf@process{#1}\pgf@xa=\pgf@x\pgf@ya=\pgf@y}
+\def\tikz@parse@intersection@b#1{\pgf@process{#1}\pgf@xb=\pgf@x\pgf@yb=\pgf@y}
+\def\tikz@parse@intersection@c#1{\pgf@process{#1}\pgf@xc=\pgf@x\pgf@yc=\pgf@y}
+\def\tikz@parse@intersection@d#1{\pgf@process{#1}}
+
+\def\tikz@scan@relative#1+{%
+  \@ifnextchar+{\tikz@scan@plusplus#1}{\tikz@scan@oneplus#1}}
+
+\def\tikz@scan@plusplus#1+{%
+  \def\tikz@doafter{#1}%
+  \tikz@scan@absolute\tikz@add%
+}
+\def\tikz@add#1{%
+  \tikz@doafter{\pgfpointadd{#1}{\tikz@last@position@saved}}%
+}
+\def\tikz@scan@oneplus#1{%
+  \def\tikz@doafter{#1}%
+  \tikz@updatecurrentfalse%
+  \tikz@scan@absolute\tikz@add%
+} 
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/libraries/pgflibraryarrows.code.tex b/Master/texmf-dist/tex/generic/pgf/libraries/pgflibraryarrows.code.tex
new file mode 100644
index 00000000000..e953e2d28b1
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/libraries/pgflibraryarrows.code.tex
@@ -0,0 +1,806 @@
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/libraries/pgflibraryarrows.code.tex,v 1.2 2005/07/06 15:58:57 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+% A square bracket shaped arrow
+
+\pgfarrowsdeclare{[}{]}
+{
+  \@tempdima=1pt%
+  \advance\@tempdima by1.25\pgflinewidth%
+  \pgfarrowsleftextend{-\@tempdima}
+  \pgfarrowsrightextend{.5\pgflinewidth}
+}
+{
+  \@tempdima=2pt%
+  \advance\@tempdima by1.5\pgflinewidth%
+  \@tempdimb=\@tempdima%
+  \advance\@tempdimb by\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetmiterjoin
+  \pgfsetbuttcap
+  \pgfpathmoveto{\pgfpoint{-.5\@tempdimb}{-\@tempdima}}
+  \pgfpathlineto{\pgfpoint{0pt}{-\@tempdima}}
+  \pgfpathlineto{\pgfpoint{0pt}{\@tempdima}}
+  \pgfpathlineto{\pgfpoint{-.5\@tempdimb}{\@tempdima}}
+  \pgfusepathqstroke
+}
+
+\pgfarrowsdeclarereversed{]}{[}{[}{]}
+
+
+% A round bracket shaped arrow
+
+\pgfarrowsdeclare{(}{)}
+{
+  \@tempdima=2pt%
+  \advance\@tempdima by1.5\pgflinewidth%
+  \@tempdimb=0.0625\@tempdima\advance\@tempdimb by.5\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+  \@tempdimb=0.5\@tempdima\advance\@tempdimb by.5\pgflinewidth%
+  \pgfarrowsleftextend{-\@tempdimb}
+}
+{
+  \@tempdima=2pt%
+  \advance\@tempdima by1.5\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetroundcap
+  \pgfpathmoveto{\pgfpoint{-.5\@tempdima}{-\@tempdima}}
+  \pgfpathcurveto
+  {\pgfpoint{.25\@tempdima}{-.5\@tempdima}}
+  {\pgfpoint{.25\@tempdima}{.5\@tempdima}}
+  {\pgfpoint{-.5\@tempdima}{\@tempdima}}
+  \pgfusepathqstroke
+}
+
+\pgfarrowsdeclarereversed{)}{(}{(}{)}
+
+
+
+
+% A pointed bracket shaped arrow
+
+\pgfarrowsdeclare{angle 90}{angle 90}
+{
+  \@tempdima=0.3pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \@tempdimb=5.5\@tempdima\advance\@tempdimb by.5\pgflinewidth%
+  \pgfarrowsleftextend{-\@tempdimb}
+  \@tempdimb=.5\@tempdima\advance\@tempdimb by0.707\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.3pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetroundcap
+  \pgfsetmiterjoin
+  \pgfpathmoveto{\pgfpoint{-5.5\@tempdima}{-6\@tempdima}}
+  \pgfpathlineto{\pgfpoint{0.5\@tempdima}{0\@tempdima}}
+  \pgfpathlineto{\pgfpoint{-5.5\@tempdima}{6\@tempdima}}
+  \pgfusepathqstroke
+}
+
+\pgfarrowsdeclarereversed{angle 90 reversed}{angle 90 reversed}{angle 90}{angle 90}
+
+
+\pgfarrowsdeclare{angle 60}{angle 60}
+{
+  \@tempdima=0.3pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \@tempdimb=7.29\@tempdima\advance\@tempdimb by.5\pgflinewidth%
+  \pgfarrowsleftextend{-\@tempdimb}
+  \@tempdimb=.5\@tempdima\advance\@tempdimb by\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.3pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetroundcap
+  \pgfsetmiterjoin
+  \pgfpathmoveto{\pgfpointadd{\pgfpoint{0.5\@tempdima}{0pt}}{\pgfpointpolar{150}{9\@tempdima}}}
+  \pgfpathlineto{\pgfpoint{0.5\@tempdima}{0\@tempdima}}
+  \pgfpathlineto{\pgfpointadd{\pgfpoint{0.5\@tempdima}{0pt}}{\pgfpointpolar{-150}{9\@tempdima}}}
+  \pgfusepathqstroke
+}
+
+\pgfarrowsdeclarereversed{angle 60 reversed}{angle 60 reversed}{angle 60}{angle 60}
+
+
+
+\pgfarrowsdeclare{angle 45}{angle 45}
+{
+  \@tempdima=0.3pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \@tempdimb=8.705\@tempdima\advance\@tempdimb by.5\pgflinewidth%
+  \pgfarrowsleftextend{-\@tempdimb}
+  \@tempdimb=.5\@tempdima\advance\@tempdimb by1.28\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.3pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetroundcap
+  \pgfsetmiterjoin
+  \pgfpathmoveto{\pgfpointadd{\pgfpoint{0.5\@tempdima}{0pt}}{\pgfpointpolar{157}{10\@tempdima}}}
+  \pgfpathlineto{\pgfpoint{0.5\@tempdima}{0\@tempdima}}
+  \pgfpathlineto{\pgfpointadd{\pgfpoint{0.5\@tempdima}{0pt}}{\pgfpointpolar{-157}{10\@tempdima}}}
+  \pgfusepathqstroke
+}
+
+\pgfarrowsdeclarereversed{angle 45 reversed}{angle 45 reversed}{angle 45}{angle 45}
+
+
+
+% A dot shaped arrow
+
+\pgfarrowsdeclare{*}{*}
+{
+  \@tempdima=0.4pt%
+  \advance\@tempdima by.2\pgflinewidth%
+  \@tempdimb=5.5\@tempdima\advance\@tempdimb by\pgflinewidth
+  \pgfarrowsleftextend{-\@tempdimb}
+  \@tempdimb=1.5\@tempdima\advance\@tempdimb by.5\pgflinewidth
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.4pt%
+  \advance\@tempdima by.2\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfpathcircle{\pgfpoint{-3\@tempdima}{0pt}}{4.5\@tempdima}
+  \pgfusepathqfillstroke
+}
+
+
+% An open dot shaped arrow
+
+\pgfarrowsdeclare{o}{o}
+{
+  \pgfarrowsleftextend{-.5\pgflinewidth}
+  \@tempdima=0.4pt%
+  \advance\@tempdima by.2\pgflinewidth%
+  \@tempdimb=9\@tempdima\advance\@tempdimb by.5\pgflinewidth
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.4pt%
+  \advance\@tempdima by.2\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfpathcircle{\pgfpoint{4.5\@tempdima}{0bp}}{4.5\@tempdima}
+  \pgfusepathqstroke
+}
+
+
+
+% A diamond shaped arrow
+
+\pgfarrowsdeclare{diamond}{diamond}
+{
+  \@tempdima=0.4pt%
+  \advance\@tempdima by.275\pgflinewidth%
+  \@tempdimb=13\@tempdima\advance\@tempdimb by.5\pgflinewidth
+  \pgfarrowsleftextend{-\@tempdimb}
+  \@tempdimb=1\@tempdima\advance\@tempdimb by.5\pgflinewidth
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.4pt%
+  \advance\@tempdima by.275\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetroundjoin
+  \pgfpathmoveto{\pgfpoint{1\@tempdima}{0\@tempdima}}
+  \pgfpathlineto{\pgfpoint{-6\@tempdima}{4\@tempdima}}
+  \pgfpathlineto{\pgfpoint{-13\@tempdima}{0\@tempdima}}
+  \pgfpathlineto{\pgfpoint{-6\@tempdima}{-4\@tempdima}}
+  \pgfpathclose
+  \pgfusepathqfillstroke
+}
+
+\pgfarrowsdeclare{open diamond}{open diamond}%{{-.5bp}{14.5bp}}
+{
+  \@tempdima=0.4pt%
+  \advance\@tempdima by.275\pgflinewidth%
+  \pgfarrowsleftextend{-.5\pgflinewidth}
+  \@tempdimb=14\@tempdima\advance\@tempdimb by.5\pgflinewidth
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.4pt%
+  \advance\@tempdima by.275\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetroundjoin
+  \pgfpathmoveto{\pgfpoint{14\@tempdima}{0\@tempdima}}
+  \pgfpathlineto{\pgfpoint{7\@tempdima}{4\@tempdima}}
+  \pgfpathlineto{\pgfpoint{0\@tempdima}{0\@tempdima}}
+  \pgfpathlineto{\pgfpoint{7\@tempdima}{-4\@tempdima}}
+  \pgfpathclose
+  \pgfusepathqstroke
+}
+
+
+
+% A triangle shaped arrow
+
+\pgfarrowsdeclare{triangle 90}{triangle 90}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \@tempdimb=5.5\@tempdima\advance\@tempdimb by.5\pgflinewidth%
+  \pgfarrowsleftextend{-\@tempdimb}
+  \@tempdimb=.5\@tempdima\advance\@tempdimb by0.707\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetmiterjoin
+  \pgfpathmoveto{\pgfpoint{-5.5\@tempdima}{-6\@tempdima}}
+  \pgfpathlineto{\pgfpoint{0.5\@tempdima}{0\@tempdima}}
+  \pgfpathlineto{\pgfpoint{-5.5\@tempdima}{6\@tempdima}}
+  \pgfpathclose
+  \pgfusepathqfillstroke
+}
+
+\pgfarrowsdeclarereversed{triangle 90 reversed}{triangle 90 reversed}{triangle 90}{triangle 90}
+
+
+\pgfarrowsdeclare{triangle 60}{triangle 60}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \@tempdimb=7.29\@tempdima\advance\@tempdimb by.5\pgflinewidth%
+  \pgfarrowsleftextend{-\@tempdimb}
+  \@tempdimb=.5\@tempdima\advance\@tempdimb by\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetmiterjoin
+  \pgfpathmoveto{\pgfpointadd{\pgfpoint{0.5\@tempdima}{0pt}}{\pgfpointpolar{150}{9\@tempdima}}}
+  \pgfpathlineto{\pgfpoint{0.5\@tempdima}{0\@tempdima}}
+  \pgfpathlineto{\pgfpointadd{\pgfpoint{0.5\@tempdima}{0pt}}{\pgfpointpolar{-150}{9\@tempdima}}}
+  \pgfpathclose
+  \pgfusepathqfillstroke
+}
+
+\pgfarrowsdeclarereversed{triangle 60 reversed}{triangle 60 reversed}{triangle 60}{triangle 60}
+
+
+
+
+\pgfarrowsdeclare{triangle 45}{triangle 45}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \@tempdimb=8.705\@tempdima\advance\@tempdimb by.5\pgflinewidth%
+  \pgfarrowsleftextend{-\@tempdimb}
+  \@tempdimb=.5\@tempdima\advance\@tempdimb by1.28\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetmiterjoin
+  \pgfpathmoveto{\pgfpointadd{\pgfpoint{0.5\@tempdima}{0pt}}{\pgfpointpolar{157}{10\@tempdima}}}
+  \pgfpathlineto{\pgfpoint{0.5\@tempdima}{0\@tempdima}}
+  \pgfpathlineto{\pgfpointadd{\pgfpoint{0.5\@tempdima}{0pt}}{\pgfpointpolar{-157}{10\@tempdima}}}
+  \pgfpathclose
+  \pgfusepathqfillstroke
+}
+
+\pgfarrowsdeclarereversed{triangle 45 reversed}{triangle 45 reversed}{triangle 45}{triangle 45}
+
+
+
+
+\pgfarrowsdeclare{open triangle 90}{open triangle 90}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfarrowsleftextend{-.5\pgflinewidth}
+  \@tempdimb=6\@tempdima\advance\@tempdimb by0.707\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetmiterjoin
+  \pgfpathmoveto{\pgfpoint{0\@tempdima}{-6\@tempdima}}
+  \pgfpathlineto{\pgfpoint{6\@tempdima}{0\@tempdima}}
+  \pgfpathlineto{\pgfpoint{0\@tempdima}{6\@tempdima}}
+  \pgfpathclose
+  \pgfusepathqstroke
+}
+
+\pgfarrowsdeclare{open triangle 90 reversed}{open triangle 90 reversed}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfarrowsleftextend{-.707\pgflinewidth}
+  \@tempdimb=6\@tempdima\advance\@tempdimb by0.5\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetmiterjoin
+  \pgfpathmoveto{\pgfpoint{6\@tempdima}{-6\@tempdima}}
+  \pgfpathlineto{\pgfpoint{0\@tempdima}{0\@tempdima}}
+  \pgfpathlineto{\pgfpoint{6\@tempdima}{6\@tempdima}}
+  \pgfpathclose
+  \pgfusepathqstroke
+}
+
+
+
+\pgfarrowsdeclare{open triangle 60}{open triangle 60}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfarrowsleftextend{-.5\pgflinewidth}
+  \@tempdimb=7.794\@tempdima\advance\@tempdimb by\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetmiterjoin
+  \pgfpathmoveto{\pgfpointadd{\pgfpoint{7.794\@tempdima}{0pt}}{\pgfpointpolar{150}{9\@tempdima}}}
+  \pgfpathlineto{\pgfpoint{7.794\@tempdima}{0pt}}
+  \pgfpathlineto{\pgfpointadd{\pgfpoint{7.794\@tempdima}{0pt}}{\pgfpointpolar{-150}{9\@tempdima}}}
+  \pgfpathclose
+  \pgfusepathqstroke
+}
+
+
+
+\pgfarrowsdeclare{open triangle 60 reversed}{open triangle 60 reversed}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfarrowsleftextend{-\pgflinewidth}
+  \@tempdimb=7.794\@tempdima\advance\@tempdimb by0.5\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetmiterjoin
+  \pgfpathmoveto{\pgfpointpolar{30}{9\@tempdima}}
+  \pgfpathlineto{\pgfpointorigin}
+  \pgfpathlineto{\pgfpointpolar{-30}{9\@tempdima}}
+  \pgfpathclose
+  \pgfusepathqstroke
+}
+
+
+
+\pgfarrowsdeclare{open triangle 45}{open triangle 45}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfarrowsleftextend{-.5\pgflinewidth}
+  \@tempdimb=9.205\@tempdima\advance\@tempdimb by1.28\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetmiterjoin
+  \pgfpathmoveto{\pgfpointadd{\pgfpoint{9.205\@tempdima}{0pt}}{\pgfpointpolar{157}{10\@tempdima}}}
+  \pgfpathlineto{\pgfpoint{9.205\@tempdima}{0pt}}
+  \pgfpathlineto{\pgfpointadd{\pgfpoint{9.205\@tempdima}{0pt}}{\pgfpointpolar{-157}{10\@tempdima}}}
+  \pgfpathclose
+  \pgfusepathqstroke
+}
+
+
+
+\pgfarrowsdeclare{open triangle 45 reversed}{open triangle 45 reversed}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfarrowsleftextend{-1.28\pgflinewidth}
+  \@tempdimb=9.205\@tempdima\advance\@tempdimb by0.5\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.5pt%
+  \advance\@tempdima by.25\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetmiterjoin
+  \pgfpathmoveto{\pgfpointpolar{23}{10\@tempdima}}
+  \pgfpathlineto{\pgfpointorigin}
+  \pgfpathlineto{\pgfpointpolar{-23}{10\@tempdima}}
+  \pgfpathclose
+  \pgfusepathqstroke
+}
+
+
+
+% A less fleshy variant of LaTeX's orginal arrow type
+
+\pgfarrowsdeclare{latex'}{latex'}
+{
+  \@tempdima=0.28pt%
+  \advance\@tempdima by.3\pgflinewidth%
+  \pgfarrowsleftextend{-4\@tempdima}
+  \pgfarrowsrightextend{6\@tempdima}
+}
+{
+  \@tempdima=0.28pt%
+  \advance\@tempdima by.3\pgflinewidth%
+  \pgfpathmoveto{\pgfpoint{6\@tempdima}{0\@tempdima}}
+  \pgfpathcurveto
+  {\pgfpoint{3.5\@tempdima}{.5\@tempdima}}
+  {\pgfpoint{-1\@tempdima}{1.5\@tempdima}}
+  {\pgfpoint{-4\@tempdima}{3.75\@tempdima}}
+  \pgfpathcurveto
+  {\pgfpoint{-1.5\@tempdima}{1\@tempdima}}
+  {\pgfpoint{-1.5\@tempdima}{-1\@tempdima}}
+  {\pgfpoint{-4\@tempdima}{-3.75\@tempdima}}
+  \pgfpathcurveto
+  {\pgfpoint{-1\@tempdima}{-1.5\@tempdima}}
+  {\pgfpoint{3.5\@tempdima}{-.5\@tempdima}}
+  {\pgfpoint{6\@tempdima}{0\@tempdima}}
+  \pgfusepathqfill
+}
+
+\pgfarrowsdeclarereversed{latex' reversed}{latex' reversed}{latex'}{latex'}
+
+
+% A rounded variant of the stealth arrow
+
+\pgfarrowsdeclare{stealth'}{stealth'}
+{
+  \@tempdima=0.28pt%
+  \advance\@tempdima by.3\pgflinewidth%
+  \@tempdimb=6\@tempdima\advance\@tempdimb by.5\pgflinewidth%
+  \pgfarrowsleftextend{-\@tempdimb}
+  \@tempdimb=2\@tempdima\advance\@tempdimb by0.5\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.28pt%
+  \advance\@tempdima by.3\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetroundjoin
+  \pgfpathmoveto{\pgfpoint{2\@tempdima}{0\@tempdima}}
+  \pgfpathcurveto
+  {\pgfpoint{-.5\@tempdima}{.5\@tempdima}}
+  {\pgfpoint{-3\@tempdima}{1.5\@tempdima}}
+  {\pgfpoint{-6\@tempdima}{3.25\@tempdima}}
+  \pgfpathcurveto
+  {\pgfpoint{-3\@tempdima}{1\@tempdima}}
+  {\pgfpoint{-3\@tempdima}{-1\@tempdima}}
+  {\pgfpoint{-6\@tempdima}{-3.25\@tempdima}}
+  \pgfpathcurveto
+  {\pgfpoint{-3\@tempdima}{-1.5\@tempdima}}
+  {\pgfpoint{-.5\@tempdima}{-.5\@tempdima}}
+  {\pgfpoint{2\@tempdima}{0\@tempdima}}
+  \pgfpathclose
+  \pgfusepathqfillstroke
+}
+
+\pgfarrowsdeclarereversed{stealth' reversed}{stealth' reversed}{stealth'}{stealth'}
+
+
+
+% The two half of the $\to$ arrow
+
+\pgfarrowsdeclare{left to}{left to}
+{
+  \@tempdima=-0.84pt%
+  \advance\@tempdima by-1.3\pgflinewidth%
+  \@tempdimb=0.21pt%
+  \advance\@tempdimb by.625\pgflinewidth%
+  \pgfarrowsleftextend{\@tempdima}
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.28pt%
+  \advance\@tempdima by.3\pgflinewidth%
+  \pgfsetlinewidth{0.8\pgflinewidth}
+  \pgfsetdash{}{0pt}
+  \pgfsetroundcap
+  \pgfsetroundjoin
+  \pgfpathmoveto{\pgfpoint{-3\@tempdima}{4\@tempdima}}
+  \pgfpathcurveto
+  {\pgfpoint{-2.75\@tempdima}{2.5\@tempdima}}
+  {\pgfpoint{0pt}{0.25\@tempdima}}
+  {\pgfpoint{0.75\@tempdima}{0pt}}
+  \pgfpathcurveto
+  {\pgfpoint{0.55\@tempdima}{-0.125\pgflinewidth}}
+  {\pgfpoint{0.5\@tempdima}{-0.125\pgflinewidth}}
+  {\pgfpoint{0.5\@tempdima}{-0.125\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{0pt}{-0.125\pgflinewidth}}
+  \pgfusepathqstroke
+}
+
+
+\pgfarrowsdeclare{right to}{right to}
+{
+  \@tempdima=-0.84pt%
+  \advance\@tempdima by-1.3\pgflinewidth%
+  \@tempdimb=0.21pt%
+  \advance\@tempdimb by.625\pgflinewidth%
+  \pgfarrowsleftextend{\@tempdima}
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.28pt%
+  \advance\@tempdima by.3\pgflinewidth%
+  \pgfsetlinewidth{0.8\pgflinewidth}
+  \pgfsetdash{}{0pt}
+  \pgfsetroundcap
+  \pgfsetroundjoin
+  \pgfpathmoveto{\pgfpoint{-3\@tempdima}{-4\@tempdima}}
+  \pgfpathcurveto
+  {\pgfpoint{-2.75\@tempdima}{-2.5\@tempdima}}
+  {\pgfpoint{0pt}{-0.25\@tempdima}}
+  {\pgfpoint{0.75\@tempdima}{0pt}}
+  \pgfpathcurveto
+  {\pgfpoint{0.55\@tempdima}{0.125\pgflinewidth}}
+  {\pgfpoint{0.5\@tempdima}{0.125\pgflinewidth}}
+  {\pgfpoint{0.5\@tempdima}{0.125\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{0pt}{0.125\pgflinewidth}}
+  \pgfusepathqstroke
+}
+
+
+
+% The halfs of the $\to$ arrow reversed
+
+\pgfarrowsdeclare{left to reversed}{left to reversed}
+{
+  \@tempdima=0.28pt%
+  \advance\@tempdima by.3\pgflinewidth%
+  \pgfarrowsleftextend{-.1\pgflinewidth}
+  \@tempdimb=3.75\@tempdima\advance\@tempdimb by0.9\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.28pt%
+  \advance\@tempdima by.3\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetroundjoin
+  \pgfsetbuttcap
+  \pgfpathmoveto{\pgfpoint{0.5\pgflinewidth}{0pt}}
+  \pgfpathlineto{\pgfpoint{-0.1\pgflinewidth}{0pt}}
+  \pgfusepathqstroke
+  \pgfsetroundcap
+  \pgfsetlinewidth{.8\pgflinewidth}
+  {\pgftransformxshift{0.625\pgflinewidth}
+    \pgfpathmoveto{\pgfpoint{3.75\@tempdima}{4\@tempdima}}
+    \pgfpathcurveto{\pgfpoint{3.5\@tempdima}{2.5\@tempdima}}{\pgfpoint{0.75\@tempdima}{0.25\@tempdima}}{\pgfpoint{0pt}{0.125\pgflinewidth}}
+    \pgfpathmoveto{\pgfpoint{3.75\@tempdima}{4\@tempdima}}
+    \pgfpathcurveto{\pgfpoint{3.5\@tempdima}{2.5\@tempdima}}{\pgfpoint{0.75\@tempdima}{0.25\@tempdima}}{\pgfpoint{0pt}{-0.125\pgflinewidth}}
+  }
+  \pgfusepathqstroke%
+}
+
+\pgfarrowsdeclare{right to reversed}{right to reversed}
+{
+  \@tempdima=0.28pt%
+  \advance\@tempdima by.3\pgflinewidth%
+  \pgfarrowsleftextend{-.1\pgflinewidth}
+  \@tempdimb=3.75\@tempdima\advance\@tempdimb by0.9\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.28pt%
+  \advance\@tempdima by.3\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetroundjoin
+  \pgfsetbuttcap
+  \pgfpathmoveto{\pgfpoint{0.5\pgflinewidth}{0pt}}
+  \pgfpathlineto{\pgfpoint{-0.1\pgflinewidth}{0pt}}
+  \pgfusepathqstroke
+  \pgfsetroundcap
+  \pgfsetlinewidth{.8\pgflinewidth}
+  {\pgftransformxshift{0.625\pgflinewidth}
+    \pgfpathmoveto{\pgfpoint{3.75\@tempdima}{-4\@tempdima}}
+    \pgfpathcurveto{\pgfpoint{3.5\@tempdima}{-2.5\@tempdima}}{\pgfpoint{0.75\@tempdima}{-0.25\@tempdima}}{\pgfpoint{0pt}{-0.125\pgflinewidth}}
+    \pgfpathmoveto{\pgfpoint{3.75\@tempdima}{-4\@tempdima}}
+    \pgfpathcurveto{\pgfpoint{3.5\@tempdima}{-2.5\@tempdima}}{\pgfpoint{0.75\@tempdima}{-0.25\@tempdima}}{\pgfpoint{0pt}{0.125\pgflinewidth}}
+  }
+  \pgfusepathqstroke%
+}
+
+
+
+% A left hook
+
+\pgfarrowsdeclare{left hook}{left hook}
+{
+  \@tempdima=0.4pt%
+  \advance\@tempdima by.2\pgflinewidth%
+  \pgfarrowsleftextend{-.5\pgflinewidth}
+  \@tempdimb=3.75\@tempdima\advance\@tempdimb by0.5\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.4pt%
+  \advance\@tempdima by.2\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetroundcap
+  \pgfpathmoveto{\pgfpoint{0\@tempdima}{0\@tempdima}}
+  \pgfpathlineto{\pgfpoint{0.75\@tempdima}{0\@tempdima}}
+  \pgfpathcurveto{\pgfpoint{2.415\@tempdima}{0\@tempdima}}{\pgfpoint{3.75\@tempdima}{1.665\@tempdima}}{\pgfpoint{3.75\@tempdima}{3\@tempdima}}
+  \pgfpathcurveto{\pgfpoint{3.75\@tempdima}{4.665\@tempdima}}{\pgfpoint{2.415\@tempdima}{6\@tempdima}}{\pgfpoint{0.75\@tempdima}{6\@tempdima}}
+  \pgfusepathqstroke%
+}
+
+\pgfarrowsdeclarereversed{left hook reversed}{left hook reversed}{left hook}{left hook}
+
+
+
+% A right hook
+
+\pgfarrowsdeclare{right hook}{right hook}
+{
+  \@tempdima=0.4pt%
+  \advance\@tempdima by.2\pgflinewidth%
+  \pgfarrowsleftextend{-.5\pgflinewidth}
+  \@tempdimb=3.75\@tempdima\advance\@tempdimb by0.5\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.4pt%
+  \advance\@tempdima by.2\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetroundcap
+  \pgfpathmoveto{\pgfpoint{0\@tempdima}{0\@tempdima}}
+  \pgfpathlineto{\pgfpoint{0.75\@tempdima}{0\@tempdima}}
+  \pgfpathcurveto{\pgfpoint{2.415\@tempdima}{0\@tempdima}}{\pgfpoint{3.75\@tempdima}{-1.665\@tempdima}}{\pgfpoint{3.75\@tempdima}{-3\@tempdima}}
+  \pgfpathcurveto{\pgfpoint{3.75\@tempdima}{-4.665\@tempdima}}{\pgfpoint{2.415\@tempdima}{-6\@tempdima}}{\pgfpoint{0.75\@tempdima}{-6\@tempdima}}
+  \pgfusepathqstroke%
+}
+
+\pgfarrowsdeclarereversed{right hook reversed}{right hook reversed}{right hook}{right hook}
+
+
+% Hooks in both directions
+
+\pgfarrowsdeclare{hooks}{hooks}
+{
+  \@tempdima=0.4pt%
+  \advance\@tempdima by.2\pgflinewidth%
+  \pgfarrowsleftextend{-.5\pgflinewidth}
+  \@tempdimb=3.75\@tempdima\advance\@tempdimb by0.5\pgflinewidth%
+  \pgfarrowsrightextend{\@tempdimb}
+}
+{
+  \@tempdima=0.4pt%
+  \advance\@tempdima by.2\pgflinewidth%
+  \pgfsetdash{}{0pt}
+  \pgfsetroundcap
+  \pgfpathmoveto{\pgfpoint{0\@tempdima}{0\@tempdima}}
+  \pgfpathlineto{\pgfpoint{0.75\@tempdima}{0\@tempdima}}
+  \pgfpathcurveto{\pgfpoint{2.415\@tempdima}{0\@tempdima}}{\pgfpoint{3.75\@tempdima}{1.665\@tempdima}}{\pgfpoint{3.75\@tempdima}{3\@tempdima}}
+  \pgfpathcurveto{\pgfpoint{3.75\@tempdima}{4.665\@tempdima}}{\pgfpoint{2.415\@tempdima}{6\@tempdima}}{\pgfpoint{0.75\@tempdima}{6\@tempdima}}
+  \pgfpathmoveto{\pgfpoint{0.75\@tempdima}{0\@tempdima}}
+  \pgfpathcurveto{\pgfpoint{2.415\@tempdima}{0\@tempdima}}{\pgfpoint{3.75\@tempdima}{-1.665\@tempdima}}{\pgfpoint{3.75\@tempdima}{-3\@tempdima}}
+  \pgfpathcurveto{\pgfpoint{3.75\@tempdima}{-4.665\@tempdima}}{\pgfpoint{2.415\@tempdima}{-6\@tempdima}}{\pgfpoint{0.75\@tempdima}{-6\@tempdima}}
+  \pgfusepathqstroke%
+}
+
+\pgfarrowsdeclarereversed{hooks reversed}{hooks reversed}{hooks}{hooks}
+
+
+
+
+% Round cap
+
+\pgfarrowsdeclare{round cap}{round cap}
+{\pgfarrowsleftextend{0pt}\pgfarrowsrightextend{\pgflinewidth}}
+{
+  \pgfsetdash{}{0pt}
+  \pgfsetroundcap
+  \pgfpathmoveto{\pgfpointorigin}
+  \pgfpathlineto{\pgfpoint{0.5\pgflinewidth}{0pt}}
+  \pgfusepathqstroke
+}
+
+
+% Butt cap
+
+\pgfarrowsdeclare{butt cap}{butt cap}
+{\pgfarrowsleftextend{-.1\pgflinewidth}\pgfarrowsrightextend{.5\pgflinewidth}}
+{
+  \pgfsetdash{}{0pt}
+  \pgfsetbuttcap
+  \pgfpathmoveto{\pgfpoint{-.1\pgflinewidth}{0pt}}
+  \pgfpathlineto{\pgfpoint{0.5\pgflinewidth}{0pt}}
+  \pgfusepathqstroke
+}
+
+
+
+% 90 degrees cap
+
+\pgfarrowsdeclare{triangle 90 cap}{triangle 90 cap}
+{\pgfarrowsleftextend{-.1\pgflinewidth}\pgfarrowsrightextend{1\pgflinewidth}}
+{
+  \pgfpathmoveto{\pgfpoint{-.1\pgflinewidth}{0.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{.5\pgflinewidth}{.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{\pgflinewidth}{0pt}}
+  \pgfpathlineto{\pgfpoint{.5\pgflinewidth}{-.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{-.1\pgflinewidth}{-0.5\pgflinewidth}}
+  \pgfusepathqfill
+}
+
+
+% reversed 90 degrees cap
+
+\pgfarrowsdeclare{triangle 90 cap reversed}{triangle 90 cap reversed}
+{\pgfarrowsleftextend{-.1\pgflinewidth}\pgfarrowsrightextend{1\pgflinewidth}}
+{
+  \pgfpathmoveto{\pgfpoint{1\pgflinewidth}{0.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{-.1\pgflinewidth}{.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{-.1\pgflinewidth}{-.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{1\pgflinewidth}{-.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{0.5\pgflinewidth}{0\pgflinewidth}}
+  \pgfusepathqfill
+}
+
+
+
+% fast
+
+\pgfarrowsdeclare{fast cap}{fast cap}
+{\pgfarrowsleftextend{-.1\pgflinewidth}\pgfarrowsrightextend{2\pgflinewidth}}
+{
+  \pgfpathmoveto{\pgfpoint{-.1\pgflinewidth}{0.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{.5\pgflinewidth}{.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{1\pgflinewidth}{0\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{.5\pgflinewidth}{-.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{-.1\pgflinewidth}{-0.5\pgflinewidth}}
+  \pgfpathclose
+  \pgfpathmoveto{\pgfpoint{1\pgflinewidth}{0.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{1.5\pgflinewidth}{0.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{2\pgflinewidth}{0\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{1.5\pgflinewidth}{-.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{1\pgflinewidth}{-0.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{1.5\pgflinewidth}{0\pgflinewidth}}
+  \pgfpathclose
+  \pgfusepathqfill
+}
+
+
+\pgfarrowsdeclare{fast cap reversed}{fast cap reversed}
+{\pgfarrowsleftextend{-.1\pgflinewidth}\pgfarrowsrightextend{2\pgflinewidth}}
+{
+  \pgfpathmoveto{\pgfpoint{-.1\pgflinewidth}{0.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{1\pgflinewidth}{.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{.5\pgflinewidth}{0\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{1\pgflinewidth}{-.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{-.1\pgflinewidth}{-0.5\pgflinewidth}}
+  \pgfpathclose
+  \pgfpathmoveto{\pgfpoint{1.5\pgflinewidth}{0.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{2\pgflinewidth}{0.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{1.5\pgflinewidth}{0\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{2\pgflinewidth}{-.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{1.5\pgflinewidth}{-0.5\pgflinewidth}}
+  \pgfpathlineto{\pgfpoint{1\pgflinewidth}{0\pgflinewidth}}
+  \pgfpathclose
+  \pgfusepathqfill
+}
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/libraries/pgflibraryautomata.code.tex b/Master/texmf-dist/tex/generic/pgf/libraries/pgflibraryautomata.code.tex
new file mode 100644
index 00000000000..be801d0a7df
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/libraries/pgflibraryautomata.code.tex
@@ -0,0 +1,189 @@
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/libraries/pgflibraryautomata.code.tex,v 1.1 2005/10/13 10:12:31 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+\newbox\pgfnodepartoutputbox
+
+
+
+%
+% Node for states without output. This is just an alias for a circle
+% node. 
+%
+\pgfdeclareshape{state}
+{
+  \inheritsavedanchors[from=circle] % this is a circle
+  \inheritanchorborder[from=circle]
+  \inheritanchor[from=circle]{north}
+  \inheritanchor[from=circle]{north west}
+  \inheritanchor[from=circle]{north east}
+  \inheritanchor[from=circle]{center}
+  \inheritanchor[from=circle]{west}
+  \inheritanchor[from=circle]{east}
+  \inheritanchor[from=circle]{mid}
+  \inheritanchor[from=circle]{mid west}
+  \inheritanchor[from=circle]{mid east}
+  \inheritanchor[from=circle]{base}
+  \inheritanchor[from=circle]{base west}
+  \inheritanchor[from=circle]{base east}
+  \inheritanchor[from=circle]{south}
+  \inheritanchor[from=circle]{south west}
+  \inheritanchor[from=circle]{south east}
+  \inheritbackgroundpath[from=circle]
+}
+
+
+%
+% Moore state node (a state with output).
+%
+% This node consists of two parts: The main part is the state
+% name. The second part is the (optional) state output. This output is
+% shown in the lower half of the node.
+%
+% Parts: text (=state name), output
+
+\pgfdeclareshape{state with output}
+{
+  %
+  % Node parts
+  %
+  \nodeparts{text,output}
+
+  %
+  % Anchors
+  %
+  \savedanchor\centerpoint{%
+    \pgf@x=.5\wd\pgfnodeparttextbox%
+    \setlength{\pgf@y}{\pgfshapeinnerysep}%
+    \pgf@y=-\pgf@y%
+    \advance\pgf@y by-\dp\pgfnodeparttextbox%
+    \advance\pgf@y by-.5\pgflinewidth%
+  }%
+  \savedanchor\outputanchor{%
+    \pgf@x=-.5\wd\pgfnodepartoutputbox%
+    \advance\pgf@x by.5\wd\pgfnodeparttextbox%
+    \setlength{\pgf@y}{\pgfshapeinnerysep}%
+    \pgf@y=-2\pgf@y%
+    \advance\pgf@y by-\ht\pgfnodepartoutputbox%
+    \advance\pgf@y by-.5\pgflinewidth%
+    \advance\pgf@y by-\dp\pgfnodeparttextbox%
+    \advance\pgf@y by-.5\pgflinewidth%
+  }
+    
+  \saveddimen\radius{%
+    % 
+    % Caculate ``height radius''
+    % 
+    \pgf@ya=.5\ht\pgfnodeparttextbox%
+    \advance\pgf@ya by.5\dp\pgfnodeparttextbox%
+    \advance\pgf@ya by.5\ht\pgfnodepartoutputbox%
+    \advance\pgf@ya by.5\dp\pgfnodepartoutputbox%
+    \advance\pgf@ya by.5\pgflinewidth%
+    \setlength\pgf@yb{\pgfshapeinnerysep}%
+    \advance\pgf@ya by2\pgf@yb%
+    % 
+    % Caculate ``width radius''
+    % 
+    \pgf@xa=.5\wd\pgfnodeparttextbox%
+    \ifdim\pgf@xa<.5\wd\pgfnodepartoutputbox%
+      \pgf@xa=.5\wd\pgfnodepartoutputbox%
+    \fi%
+    \setlength\pgf@xb{\pgfshapeinnerxsep}%
+    \advance\pgf@xa by\pgf@xb%
+    % 
+    % Calculate length of radius vector:
+    % 
+    \pgf@process{\pgfpointnormalised{\pgfpoint{\pgf@xa}{\pgf@ya}}}%
+    \ifdim\pgf@x>\pgf@y%
+        \c@pgf@counta=\pgf@x%
+        \ifnum\c@pgf@counta=0\relax%
+        \else%
+          \divide\c@pgf@counta by 255\relax%
+          \pgf@xa=16\pgf@xa\relax%
+          \divide\pgf@xa by\c@pgf@counta%
+          \pgf@xa=16\pgf@xa\relax%
+        \fi%
+      \else%
+        \c@pgf@counta=\pgf@y%
+        \ifnum\c@pgf@counta=0\relax%
+        \else%
+          \divide\c@pgf@counta by 255\relax%
+          \pgf@ya=16\pgf@ya\relax%
+          \divide\pgf@ya by\c@pgf@counta%
+          \pgf@xa=16\pgf@ya\relax%
+        \fi%
+    \fi%
+    \pgf@x=\pgf@xa%
+    % 
+    % If necessary, adjust radius so that the size requirements are
+    % met: 
+    % 
+    \setlength{\pgf@xb}{\pgfshapeminwidth}%  
+    \setlength{\pgf@yb}{\pgfshapeminheight}%  
+    \ifdim\pgf@x<.5\pgf@xb%
+        \pgf@x=.5\pgf@xb%
+    \fi%
+    \ifdim\pgf@x<.5\pgf@yb%
+        \pgf@x=.5\pgf@yb%
+    \fi%
+    % 
+    % Now, add larger of outer sepearations.
+    % 
+    \setlength{\pgf@xb}{\pgfshapeouterxsep}%  
+    \setlength{\pgf@yb}{\pgfshapeouterysep}%  
+    \ifdim\pgf@xb<\pgf@yb%
+      \advance\pgf@x by\pgf@yb%
+    \else%
+      \advance\pgf@x by\pgf@xb%
+    \fi%
+  }
+
+  %
+  % Anchors
+  % 
+  \inheritanchorborder[from=circle]
+  \inheritanchor[from=circle]{north}
+  \inheritanchor[from=circle]{north west}
+  \inheritanchor[from=circle]{north east}
+  \inheritanchor[from=circle]{center}
+  \inheritanchor[from=circle]{west}
+  \inheritanchor[from=circle]{east}
+  \inheritanchor[from=circle]{mid}
+  \inheritanchor[from=circle]{mid west}
+  \inheritanchor[from=circle]{mid east}
+  \inheritanchor[from=circle]{base}
+  \inheritanchor[from=circle]{base west}
+  \inheritanchor[from=circle]{base east}
+  \inheritanchor[from=circle]{south}
+  \inheritanchor[from=circle]{south west}
+  \inheritanchor[from=circle]{south east}
+  \anchor{output}{\outputanchor}
+
+  %
+  % Background path
+  %
+  \inheritbackgroundpath[from=circle]
+  \beforebackgroundpath{
+    \@tempdima=\radius%
+    \setlength{\pgf@xb}{\pgfshapeouterxsep}%  
+    \setlength{\pgf@yb}{\pgfshapeouterysep}%  
+    \ifdim\pgf@xb<\pgf@yb%
+      \advance\@tempdima by-\pgf@yb%
+    \else%
+      \advance\@tempdima by-\pgf@xb%
+    \fi%
+    \advance\@tempdima by-.5\pgflinewidth%  
+    \pgfsetarrows{-}%  
+    \pgfpathmoveto{\pgfpointadd{\centerpoint}{\pgfpoint{-\@tempdima}{0pt}}}%
+    \pgfpathlineto{\pgfpointadd{\centerpoint}{\pgfpoint{\@tempdima}{0pt}}}%
+    \pgfusepath{stroke}%
+  }
+}
+
+
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/libraries/pgflibraryplothandlers.code.tex b/Master/texmf-dist/tex/generic/pgf/libraries/pgflibraryplothandlers.code.tex
new file mode 100644
index 00000000000..7bbaa4b24bb
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/libraries/pgflibraryplothandlers.code.tex
@@ -0,0 +1,450 @@
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/libraries/pgflibraryplothandlers.code.tex,v 1.3 2005/07/06 15:58:57 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+\newif\ifpgf@plot@started
+
+
+% This handler converts each plot stream command into a curveto
+% command, except for the first, which is converted to the previously
+% specified action.
+%
+% Example:
+%
+% \pgfpathmoveto{\pgfpointorigin}
+% \pgfsetlinetofirstplotpoint
+% \pgfplothandlercurveto
+% \pgfplotxyfile{mytable}
+
+\def\pgfplothandlercurveto{%
+  \def\pgf@plotstreamstart{%
+    \global\let\pgf@plotstreampoint=\pgf@plot@curveto@handler@initial%
+    \global\let\pgf@plotstreamspecial=\@gobble%
+    \global\let\pgf@plotstreamend=\pgf@plot@curveto@handler@finish%
+    \global\pgf@plot@startedfalse%
+  }%
+}
+
+\def\pgf@plot@curveto@handler@initial#1{%
+  \pgf@process{#1}%
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \pgf@plot@first@action{\pgfpoint{\pgf@xa}{\pgf@ya}}%
+  \xdef\pgf@plot@curveto@first{\noexpand\pgfpoint{\the\pgf@xa}{\the\pgf@ya}}%
+  \global\let\pgf@plot@curveto@first@support=\pgf@plot@curveto@first%
+  \global\let\pgf@plotstreampoint=\pgf@plot@curveto@handler@second%
+}
+
+\def\pgf@plot@curveto@handler@second#1{%
+  \pgf@process{#1}%
+  \xdef\pgf@plot@curveto@second{\noexpand\pgfpoint{\the\pgf@x}{\the\pgf@y}}%
+  \global\let\pgf@plotstreampoint=\pgf@plot@curveto@handler@third%
+  \global\pgf@plot@startedtrue%
+}
+
+\def\pgf@plot@curveto@handler@third#1{%
+  \pgf@process{#1}%
+  \xdef\pgf@plot@curveto@current{\noexpand\pgfpoint{\the\pgf@x}{\the\pgf@y}}%
+  % compute difference vector:
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \pgf@process{\pgf@plot@curveto@first}
+  \advance\pgf@xa by-\pgf@x%
+  \advance\pgf@ya by-\pgf@y%
+  % compute support directions:
+  \pgf@xa=\pgf@plottension\pgf@xa%
+  \pgf@ya=\pgf@plottension\pgf@ya%
+  % first marshal:
+  \pgf@process{\pgf@plot@curveto@second}%
+  \pgf@xb=\pgf@x%
+  \pgf@yb=\pgf@y%
+  \pgf@xc=\pgf@x%
+  \pgf@yc=\pgf@y%
+  \advance\pgf@xb by-\pgf@xa%
+  \advance\pgf@yb by-\pgf@ya%
+  \advance\pgf@xc by\pgf@xa%
+  \advance\pgf@yc by\pgf@ya%
+  \edef\pgf@marshal{\noexpand\pgfpathcurveto{\noexpand\pgf@plot@curveto@first@support}%
+    {\noexpand\pgfpoint{\the\pgf@xb}{\the\pgf@yb}}{\noexpand\pgf@plot@curveto@second}}%
+  {\pgf@marshal}%
+  % Prepare next:
+  \global\let\pgf@plot@curveto@first=\pgf@plot@curveto@second%
+  \global\let\pgf@plot@curveto@second=\pgf@plot@curveto@current%
+  \xdef\pgf@plot@curveto@first@support{\noexpand\pgfpoint{\the\pgf@xc}{\the\pgf@yc}}%
+}
+
+\def\pgf@plot@curveto@handler@finish{%
+  \ifpgf@plot@started%
+    \pgfpathcurveto{\pgf@plot@curveto@first@support}{\pgf@plot@curveto@second}{\pgf@plot@curveto@second}%
+  \fi%
+}
+
+
+% This commands sets the tension for smoothing of plots.
+%
+% #1 = tension of curves. A value of 1 will yield a circle when the
+%      control points are at quarters of a circle. A smaller value
+%      will result in a tighter curve. Default is 0.5. 
+%
+% Example:
+%
+% \pgfsetplottension{0.2}
+
+\def\pgfsetplottension#1{%
+  \pgf@x=#1pt\relax%
+  \pgf@x=0.2775\pgf@x\relax%
+  \edef\pgf@plottension{\pgf@sys@tonumber\pgf@x}}
+\pgfsetplottension{0.5}
+
+
+% This handler converts the plot stream command into a curveto
+% command that is closed using a closepath.
+%
+% Example:
+%
+% \pgfpathmoveto{\pgfpointorigin}
+% \pgfplothandlerclosedcurve
+% \pgfplotxyfile{mytable}
+
+\def\pgfplothandlerclosedcurve{%
+  \def\pgf@plotstreamstart{%
+    \global\let\pgf@plotstreampoint=\pgf@plot@closedcurve@handler@initial%
+    \global\let\pgf@plotstreamspecial=\@gobble%
+    \global\let\pgf@plotstreamend=\pgf@plot@closedcurve@handler@finish%
+  }%
+}
+
+\def\pgf@plot@closedcurve@handler@initial#1{%
+  \pgf@process{#1}%
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \xdef\pgf@plot@closedcurve@initial{\noexpand\pgfpoint{\the\pgf@xa}{\the\pgf@ya}}%
+  \global\let\pgf@plotstreampoint=\pgf@plot@closedcurve@handler@second%
+  \global\pgf@plot@startedfalse%
+}
+
+\def\pgf@plot@closedcurve@handler@second#1{%
+  \pgf@process{#1}%
+  \xdef\pgf@plot@closedcurve@after@initial{\noexpand\pgfpoint{\the\pgf@x}{\the\pgf@y}}%
+  {\pgfpathmoveto{}}%
+  \global\let\pgf@plotstreampoint=\pgf@plot@closedcurve@handler@third%
+}
+
+\def\pgf@plot@closedcurve@handler@third#1{%
+  \global\pgf@plot@startedtrue%
+  \pgf@process{#1}%
+  \xdef\pgf@plot@closedcurve@current{\noexpand\pgfpoint{\the\pgf@x}{\the\pgf@y}}%
+  % compute difference vector:
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \pgf@process{\pgf@plot@closedcurve@initial}
+  \advance\pgf@xa by-\pgf@x%
+  \advance\pgf@ya by-\pgf@y%
+  % compute support directions:
+  \pgf@xa=\pgf@plottension\pgf@xa%
+  \pgf@ya=\pgf@plottension\pgf@ya%
+  % first marshal:
+  \pgf@process{\pgf@plot@closedcurve@after@initial}%
+  \pgf@xb=\pgf@x%
+  \pgf@yb=\pgf@y%
+  \pgf@xc=\pgf@x%
+  \pgf@yc=\pgf@y%
+  \advance\pgf@xb by-\pgf@xa%
+  \advance\pgf@yb by-\pgf@ya%
+  \advance\pgf@xc by\pgf@xa%
+  \advance\pgf@yc by\pgf@ya%
+  \global\let\pgf@plot@closedcurve@first=\pgf@plot@closedcurve@after@initial%
+  \global\let\pgf@plot@closedcurve@second=\pgf@plot@closedcurve@current%
+  \xdef\pgf@plot@closedcurve@after@initial@presupport{\noexpand\pgfpoint{\the\pgf@xb}{\the\pgf@yb}}%
+  \xdef\pgf@plot@closedcurve@first@support{\noexpand\pgfpoint{\the\pgf@xc}{\the\pgf@yc}}%
+  \global\let\pgf@plotstreampoint=\pgf@plot@closedcurve@handler@fourth%
+}
+
+\def\pgf@plot@closedcurve@handler@fourth#1{%
+  \pgf@process{#1}%
+  \xdef\pgf@plot@closedcurve@current{\noexpand\pgfpoint{\the\pgf@x}{\the\pgf@y}}%
+  % compute difference vector:
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \pgf@process{\pgf@plot@closedcurve@first}
+  \advance\pgf@xa by-\pgf@x%
+  \advance\pgf@ya by-\pgf@y%
+  % compute support directions:
+  \pgf@xa=\pgf@plottension\pgf@xa%
+  \pgf@ya=\pgf@plottension\pgf@ya%
+  % first marshal:
+  \pgf@process{\pgf@plot@closedcurve@second}%
+  \pgf@xb=\pgf@x%
+  \pgf@yb=\pgf@y%
+  \pgf@xc=\pgf@x%
+  \pgf@yc=\pgf@y%
+  \advance\pgf@xb by-\pgf@xa%
+  \advance\pgf@yb by-\pgf@ya%
+  \advance\pgf@xc by\pgf@xa%
+  \advance\pgf@yc by\pgf@ya%
+  \edef\pgf@marshal{\noexpand\pgfpathcurveto{\noexpand\pgf@plot@closedcurve@first@support}%
+    {\noexpand\pgfpoint{\the\pgf@xb}{\the\pgf@yb}}{\noexpand\pgf@plot@closedcurve@second}}%
+  {\pgf@marshal}%
+  % Prepare next:
+  \global\let\pgf@plot@closedcurve@first=\pgf@plot@closedcurve@second%
+  \global\let\pgf@plot@closedcurve@second=\pgf@plot@closedcurve@current%
+  \xdef\pgf@plot@closedcurve@first@support{\noexpand\pgfpoint{\the\pgf@xc}{\the\pgf@yc}}%
+}
+
+\def\pgf@plot@closedcurve@handler@finish{%
+  \ifpgf@plot@started
+    %
+    % first, draw line from 2nd last to last:
+    %
+    \pgf@process{\pgf@plot@closedcurve@initial}%
+    % compute difference vector:
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \pgf@process{\pgf@plot@closedcurve@first}%
+    \advance\pgf@xa by-\pgf@x%
+    \advance\pgf@ya by-\pgf@y%
+    % compute support directions:
+    \pgf@xa=\pgf@plottension\pgf@xa%
+    \pgf@ya=\pgf@plottension\pgf@ya%
+    % first marshal:
+    \pgf@process{\pgf@plot@closedcurve@second}%
+    \pgf@xb=\pgf@x%
+    \pgf@yb=\pgf@y%
+    \pgf@xc=\pgf@x%
+    \pgf@yc=\pgf@y%
+    \advance\pgf@xb by-\pgf@xa%
+    \advance\pgf@yb by-\pgf@ya%
+    \advance\pgf@xc by\pgf@xa%
+    \advance\pgf@yc by\pgf@ya%
+    \edef\pgf@marshal{\noexpand\pgfpathcurveto{\noexpand\pgf@plot@closedcurve@first@support}%
+      {\noexpand\pgfpoint{\the\pgf@xb}{\the\pgf@yb}}{\noexpand\pgf@plot@closedcurve@second}}%
+    {\pgf@marshal}%
+    \xdef\pgf@plot@closedcurve@first@support{\noexpand\pgfpoint{\the\pgf@xc}{\the\pgf@yc}}%
+    %
+    % second, draw line from last point to start:
+    %
+    \pgf@process{\pgf@plot@closedcurve@after@initial}%
+    % compute difference vector:
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \pgf@process{\pgf@plot@closedcurve@second}%
+    \advance\pgf@xa by-\pgf@x%
+    \advance\pgf@ya by-\pgf@y%
+    % compute support directions:
+    \pgf@xa=\pgf@plottension\pgf@xa%
+    \pgf@ya=\pgf@plottension\pgf@ya%
+    % first marshal:
+    \pgf@process{\pgf@plot@closedcurve@initial}%
+    \pgf@xb=\pgf@x%
+    \pgf@yb=\pgf@y%
+    \pgf@xc=\pgf@x%
+    \pgf@yc=\pgf@y%
+    \advance\pgf@xb by-\pgf@xa%
+    \advance\pgf@yb by-\pgf@ya%
+    \advance\pgf@xc by\pgf@xa%
+    \advance\pgf@yc by\pgf@ya%
+    \edef\pgf@marshal{\noexpand\pgfpathcurveto{\noexpand\pgf@plot@closedcurve@first@support}%
+      {\noexpand\pgfpoint{\the\pgf@xb}{\the\pgf@yb}}{\noexpand\pgf@plot@closedcurve@initial}}%
+    {\pgf@marshal}%
+    %
+    % third, draw line from first to second point:
+    %
+    \edef\pgf@marshal{\noexpand\pgfpathcurveto{\noexpand\pgfpoint{\the\pgf@xc}{\the\pgf@yc}}%
+      {\noexpand\pgf@plot@closedcurve@after@initial@presupport}{\noexpand\pgf@plot@closedcurve@after@initial}}%
+    {\pgf@marshal}%
+    \pgfpathclose%
+  \fi%
+}
+
+
+
+
+
+% This handler converts each point in a stream into a line from the
+% $y$-axis to the given points coordinate, resulting in a
+% ``comb.'' 
+%
+% Example:
+%
+% \pgfplothandlerxcomb
+% \pgfplotxyfile{mytable}
+
+\def\pgfplothandlerxcomb{%
+  \def\pgf@plotstreamstart{%
+    \global\let\pgf@plotstreampoint=\pgf@plot@xcomb@handler%
+    \global\let\pgf@plotstreamspecial=\@gobble%
+    \global\let\pgf@plotstreamend=\relax%
+  }%
+}
+
+\def\pgf@plot@xcomb@handler#1{%
+  \pgf@process{#1}%
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \pgfpathmoveto{\pgfpoint{0pt}{\pgf@ya}}%
+  \pgfpathlineto{\pgfpoint{\pgf@xa}{\pgf@ya}}%
+}
+
+
+% This handler converts each point in a stream into a line from the
+% $x$-axis straight up to the given points coordinate, resulting in a
+% ``comb.'' 
+%
+% Example:
+%
+% \pgfplothandlerycomb
+% \pgfplotxyfile{mytable}
+
+\def\pgfplothandlerycomb{%
+  \def\pgf@plotstreamstart{%
+    \global\let\pgf@plotstreampoint=\pgf@plot@ycomb@handler%
+    \global\let\pgf@plotstreamspecial=\@gobble%
+    \global\let\pgf@plotstreamend=\relax%
+  }%
+}
+
+\def\pgf@plot@ycomb@handler#1{%
+  \pgf@process{#1}%
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \pgfpathmoveto{\pgfpoint{\pgf@xa}{0pt}}%
+  \pgfpathlineto{\pgfpoint{\pgf@xa}{\pgf@ya}}%
+}
+
+
+
+
+
+
+% This handler converts each point in a stream into a line from the
+% origin to the point's coordinate, resulting in a ``star''.
+%
+% Example:
+%
+% \pgfplothandlerpolarcomb
+% \pgfplotxyfile{mytable}
+
+\def\pgfplothandlerpolarcomb{%
+  \def\pgf@plotstreamstart{%
+    \global\let\pgf@plotstreampoint=\pgf@plot@polarcomb@handler%
+    \global\let\pgf@plotstreamspecial=\@gobble%
+    \global\let\pgf@plotstreamend=\relax%
+  }%
+}
+
+\def\pgf@plot@polarcomb@handler#1{%
+  \pgf@process{#1}%
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \pgfpathmoveto{\pgfpointorigin}%
+  \pgfpathlineto{\pgfpoint{\pgf@xa}{\pgf@ya}}%
+}
+
+
+
+
+% This handler draws a given mark at each point. 
+%
+% #1 = some code to be executed at each point (with the coordinate
+%      system translated to that point).
+%      Typically, this code will be \pgfuseplotmark{whatever}.
+%
+% Example:
+%
+% \pgfplothandlermark{\pgfuseplotmark{*}}
+% \pgfplotxyfile{mytable}
+
+\def\pgfplothandlermark#1{%
+  \def\pgf@plot@mark{#1}%
+  \def\pgf@plotstreamstart{%
+    \global\let\pgf@plotstreampoint=\pgf@plot@mark@handler%
+    \global\let\pgf@plotstreamspecial=\@gobble%
+    \global\let\pgf@plotstreamend=\relax%
+  }%
+}
+
+\def\pgf@plot@mark@handler#1{%
+  {\pgftransformshift{#1}\pgf@plot@mark}%
+}
+
+
+% Define a new plot mark for use with \pgfplotmark.
+%
+% #1 = a plot mark mnemonic
+% #2 = code for drawing the mark
+%
+% Example:
+%
+% \pgfdeclareplotmark{*}{\pgfpathcircle{\pgfpointorigin}{2pt}\pgfusepathqfill}
+
+\def\pgfdeclareplotmark#1#2{\expandafter\def\csname pgf@plot@mark@#1\endcsname{#2}}
+
+
+% Set the size of plot marks. For circles, this will be the radius,
+% for other shapes it should be about half the width/height.
+%
+% Example:
+%
+% \pgfsetplotmarksize{1pt}
+
+\def\pgfsetplotmarksize#1{\setlength\pgfplotmarksize{#1}}
+
+\newdimen\pgfplotmarksize
+\pgfplotmarksize=2pt
+
+
+% Insert a plot mark's code at the origin.
+%
+% #1 = plot mark mnemonic
+%
+% Example:
+%
+% \pgfuseplotmark{*}
+
+\def\pgfuseplotmark#1{\csname pgf@plot@mark@#1\endcsname}
+
+
+% A stroke-filled circle mark
+
+\pgfdeclareplotmark{*}
+{%
+  \pgfpathcircle{\pgfpointorigin}{\pgfplotmarksize}
+  \pgfusepathqfillstroke
+}
+
+
+% A plus-sign like mark
+
+\pgfdeclareplotmark{+}
+{%
+  \pgfpathmoveto{\pgfpoint{-\pgfplotmarksize}{0pt}}
+  \pgfpathlineto{\pgfpoint{\pgfplotmarksize}{0pt}}
+  \pgfpathmoveto{\pgfpoint{0pt}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpoint{0pt}{-\pgfplotmarksize}}
+  \pgfusepathqstroke
+}
+
+
+% An x-shaped mark
+
+\pgfdeclareplotmark{x}
+{%
+  \pgfpathmoveto{\pgfpoint{-.70710678\pgfplotmarksize}{-.70710678\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpoint{.70710678\pgfplotmarksize}{.70710678\pgfplotmarksize}}
+  \pgfpathmoveto{\pgfpoint{-.70710678\pgfplotmarksize}{.70710678\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpoint{.70710678\pgfplotmarksize}{-.70710678\pgfplotmarksize}}
+  \pgfusepathqstroke
+}
+
+% See pgflibraryplotmarks for more plot marks
+
+
+
+
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/libraries/pgflibraryplotmarks.code.tex b/Master/texmf-dist/tex/generic/pgf/libraries/pgflibraryplotmarks.code.tex
new file mode 100644
index 00000000000..760998738b4
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/libraries/pgflibraryplotmarks.code.tex
@@ -0,0 +1,208 @@
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/libraries/pgflibraryplotmarks.code.tex,v 1.2 2005/07/06 15:58:57 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+% A stroked circle mark
+
+\pgfdeclareplotmark{o}
+{%
+  \pgfpathcircle{\pgfpointorigin}{\pgfplotmarksize}
+  \pgfusepathqstroke
+}
+
+
+
+% A six-pointed star mark
+
+\pgfdeclareplotmark{asterisk}
+{%
+  \pgfpathmoveto{\pgfpoint{0pt}{-\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpoint{0pt}{\pgfplotmarksize}}
+  \pgfpathmoveto{\pgfpointpolar{30}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpointpolar{210}{\pgfplotmarksize}}
+  \pgfpathmoveto{\pgfpointpolar{-30}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpointpolar{-210}{\pgfplotmarksize}}
+  \pgfusepathqstroke
+}
+
+
+% A five-pointed star mark
+
+\pgfdeclareplotmark{star}
+{%
+  \pgfpathmoveto{\pgfpointorigin}\pgfpathlineto{\pgfpoint{0pt}{\pgfplotmarksize}}
+  \pgfpathmoveto{\pgfpointorigin}\pgfpathlineto{\pgfpointpolar{18}{\pgfplotmarksize}}
+  \pgfpathmoveto{\pgfpointorigin}\pgfpathlineto{\pgfpointpolar{-54}{\pgfplotmarksize}}
+  \pgfpathmoveto{\pgfpointorigin}\pgfpathlineto{\pgfpointpolar{234}{\pgfplotmarksize}}
+  \pgfpathmoveto{\pgfpointorigin}\pgfpathlineto{\pgfpointpolar{162}{\pgfplotmarksize}}
+  \pgfusepathqstroke
+}
+
+
+% An \oplus mark
+
+\pgfdeclareplotmark{oplus}
+{%
+  \pgfpathcircle{\pgfpointorigin}{\pgfplotmarksize}
+  \pgfpathmoveto{\pgfpoint{-\pgfplotmarksize}{0pt}}
+  \pgfpathlineto{\pgfpoint{\pgfplotmarksize}{0pt}}
+  \pgfpathmoveto{\pgfpoint{0pt}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpoint{0pt}{-\pgfplotmarksize}}
+  \pgfusepathqstroke
+}
+
+\pgfdeclareplotmark{oplus*}
+{%
+  \pgfpathcircle{\pgfpointorigin}{\pgfplotmarksize}
+  \pgfpathmoveto{\pgfpoint{-\pgfplotmarksize}{0pt}}
+  \pgfpathlineto{\pgfpoint{\pgfplotmarksize}{0pt}}
+  \pgfpathmoveto{\pgfpoint{0pt}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpoint{0pt}{-\pgfplotmarksize}}
+  \pgfusepathqfillstroke
+}
+
+
+% An \otimes mark
+
+\pgfdeclareplotmark{otimes}
+{%
+  \pgfpathcircle{\pgfpointorigin}{\pgfplotmarksize}
+  \pgfpathmoveto{\pgfpoint{-.70710678\pgfplotmarksize}{-.70710678\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpoint{.70710678\pgfplotmarksize}{.70710678\pgfplotmarksize}}
+  \pgfpathmoveto{\pgfpoint{-.70710678\pgfplotmarksize}{.70710678\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpoint{.70710678\pgfplotmarksize}{-.70710678\pgfplotmarksize}}
+  \pgfusepathqstroke
+}
+
+\pgfdeclareplotmark{otimes*}
+{%
+  \pgfpathcircle{\pgfpointorigin}{\pgfplotmarksize}
+  \pgfpathmoveto{\pgfpoint{-.70710678\pgfplotmarksize}{-.70710678\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpoint{.70710678\pgfplotmarksize}{.70710678\pgfplotmarksize}}
+  \pgfpathmoveto{\pgfpoint{-.70710678\pgfplotmarksize}{.70710678\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpoint{.70710678\pgfplotmarksize}{-.70710678\pgfplotmarksize}}
+  \pgfusepathqfillstroke
+}
+
+
+% A vertical bar mark
+
+\pgfdeclareplotmark{|}
+{%
+  \pgfpathmoveto{\pgfpoint{0pt}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpoint{0pt}{-\pgfplotmarksize}}
+  \pgfusepathqstroke
+}
+
+
+
+% A horizontal bar mark
+
+\pgfdeclareplotmark{-}
+{%
+  \pgfpathmoveto{\pgfpoint{\pgfplotmarksize}{0pt}}
+  \pgfpathlineto{\pgfpoint{-\pgfplotmarksize}{0pt}}
+  \pgfusepathqstroke
+}
+
+
+% A square stroked mark
+
+\pgfdeclareplotmark{square}
+{%
+  \pgfpathrectangle{\pgfpoint{-\pgfplotmarksize}{-\pgfplotmarksize}}{\pgfpoint{2\pgfplotmarksize}{2\pgfplotmarksize}}%
+  \pgfusepathqstroke
+}
+
+% A square stroked-filled mark
+
+\pgfdeclareplotmark{square*}
+{%
+  \pgfpathrectangle{\pgfpoint{-\pgfplotmarksize}{-\pgfplotmarksize}}{\pgfpoint{2\pgfplotmarksize}{2\pgfplotmarksize}}%
+  \pgfusepathqfillstroke
+}
+
+
+% A triangle mark
+
+\pgfdeclareplotmark{triangle}
+{%
+  \pgfpathmoveto{\pgfpoint{0pt}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpointpolar{-30}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpointpolar{-150}{\pgfplotmarksize}}
+  \pgfpathclose
+  \pgfusepathqstroke
+}
+
+
+% A stroke-filled triangle mark
+
+\pgfdeclareplotmark{triangle*}
+{%
+  \pgfpathmoveto{\pgfpoint{0pt}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpointpolar{-30}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpointpolar{-150}{\pgfplotmarksize}}
+  \pgfpathclose
+  \pgfusepathqfillstroke
+}
+
+
+
+% A diamond-shaped mark
+
+\pgfdeclareplotmark{diamond}
+{%
+  \pgfpathmoveto{\pgfpoint{0pt}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpoint{.75\pgfplotmarksize}{0pt}}
+  \pgfpathlineto{\pgfpoint{0pt}{-\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpoint{-.75\pgfplotmarksize}{0pt}}
+  \pgfpathclose
+  \pgfusepathqstroke
+}
+
+
+% A stroke-filled diamond-shaped mark
+
+\pgfdeclareplotmark{diamond*}
+{%
+  \pgfpathmoveto{\pgfpoint{0pt}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpoint{.75\pgfplotmarksize}{0pt}}
+  \pgfpathlineto{\pgfpoint{0pt}{-\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpoint{-.75\pgfplotmarksize}{0pt}}
+  \pgfpathclose
+  \pgfusepathqfillstroke
+}
+
+
+
+% A pentagon-shaped mark
+
+\pgfdeclareplotmark{pentagon}
+{%
+  \pgfpathmoveto{\pgfpoint{0pt}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpointpolar{18}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpointpolar{-54}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpointpolar{234}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpointpolar{162}{\pgfplotmarksize}}
+  \pgfpathclose
+  \pgfusepathqstroke
+}
+
+% A stroke-filled pentagon-shaped mark
+
+\pgfdeclareplotmark{pentagon*}
+{%
+  \pgfpathmoveto{\pgfpoint{0pt}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpointpolar{18}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpointpolar{-54}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpointpolar{234}{\pgfplotmarksize}}
+  \pgfpathlineto{\pgfpointpolar{162}{\pgfplotmarksize}}
+  \pgfpathclose
+  \pgfusepathqfillstroke
+}
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/libraries/pgflibraryshapes.code.tex b/Master/texmf-dist/tex/generic/pgf/libraries/pgflibraryshapes.code.tex
new file mode 100644
index 00000000000..2c777ef5504
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/libraries/pgflibraryshapes.code.tex
@@ -0,0 +1,289 @@
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/libraries/pgflibraryshapes.code.tex,v 1.5 2005/10/13 10:12:31 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+\pgfdeclareshape{ellipse}
+%
+% Draws a circle around the text
+%
+{
+  \savedanchor\centerpoint{%
+    \pgf@x=.5\wd\pgfnodeparttextbox%
+    \pgf@y=.5\ht\pgfnodeparttextbox%
+    \advance\pgf@y by-.5\dp\pgfnodeparttextbox%
+  }
+  \savedanchor\radius{%
+    % 
+    % Caculate ``height radius''
+    % 
+    \pgf@y=.5\ht\pgfnodeparttextbox%
+    \advance\pgf@y by.5\dp\pgfnodeparttextbox%
+    \setlength\pgf@yb{\pgfshapeinnerysep}%
+    \advance\pgf@y by\pgf@yb%
+    % 
+    % Caculate ``width radius''
+    % 
+    \pgf@x=.5\wd\pgfnodeparttextbox%
+    \setlength\pgf@xb{\pgfshapeinnerxsep}%
+    \advance\pgf@x by\pgf@xb%
+    % 
+    % Adjust
+    % 
+    \pgf@x=1.4142136\pgf@x%
+    \pgf@y=1.4142136\pgf@y%
+    % 
+    % Adjust hieght, if necessary
+    % 
+    \setlength\pgf@yc{\pgfshapeminheight}%
+    \ifdim\pgf@y<.5\pgf@yc%
+      \pgf@y=.5\pgf@yc%
+    \fi%
+    % 
+    % Adjust width, if necessary
+    % 
+    \setlength\pgf@xc{\pgfshapeminwidth}%
+    \ifdim\pgf@x<.5\pgf@xc%
+      \pgf@x=.5\pgf@xc%
+    \fi%
+    % 
+    % Add outer sep
+    % 
+    \setlength{\pgf@xb}{\pgfshapeouterxsep}%  
+    \setlength{\pgf@yb}{\pgfshapeouterysep}%  
+    \advance\pgf@x by\pgf@xb%
+    \advance\pgf@y by\pgf@yb%
+  }
+
+  %
+  % Anchors
+  % 
+  \anchor{center}{\centerpoint}
+  \anchor{mid}{\centerpoint\setlength\pgf@y{.5ex}}
+  \anchor{base}{\centerpoint\pgf@y=0pt}
+  \anchor{north}
+  {
+    \pgf@process{\radius}
+    \pgf@ya=\pgf@y%
+    \pgf@process{\centerpoint}
+    \advance\pgf@y by\pgf@ya
+  }
+  \anchor{south}
+  {
+    \pgf@process{\radius}
+    \pgf@ya=\pgf@y%
+    \pgf@process{\centerpoint}
+    \advance\pgf@y by-\pgf@ya
+  }
+  \anchor{west}
+  {
+    \pgf@process{\radius}
+    \pgf@xa=\pgf@x%
+    \pgf@process{\centerpoint}
+    \advance\pgf@x by-\pgf@xa
+  }
+  \anchor{mid west}
+  {%
+    \pgf@process{\radius}
+    \pgf@xa=\pgf@x%
+    \pgf@process{\centerpoint}
+    \advance\pgf@x by-\pgf@xa%
+    \setlength\pgf@y{.5ex}
+  }
+  \anchor{base west}
+  {%
+    \pgf@process{\radius}
+    \pgf@xa=\pgf@x%
+    \pgf@process{\centerpoint}
+    \advance\pgf@x by-\pgf@xa%
+    \pgf@y=0pt
+  }
+  \anchor{north west}
+  {
+    \pgf@process{\radius}
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \pgf@process{\centerpoint}
+    \advance\pgf@x by-0.707107\pgf@xa
+    \advance\pgf@y by0.707107\pgf@ya
+  }
+  \anchor{south west}
+  {
+    \pgf@process{\radius}
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \pgf@process{\centerpoint}
+    \advance\pgf@x by-0.707107\pgf@xa
+    \advance\pgf@y by-0.707107\pgf@ya
+  }
+  \anchor{east}
+  {%
+    \pgf@process{\radius}
+    \pgf@xa=\pgf@x%
+    \pgf@process{\centerpoint}
+    \advance\pgf@x by\pgf@xa
+  }
+  \anchor{mid east}
+  {%
+    \pgf@process{\radius}
+    \pgf@xa=\pgf@x%
+    \pgf@process{\centerpoint}
+    \advance\pgf@x by\pgf@xa%
+    \setlength\pgf@y{.5ex}
+  }
+  \anchor{base east}
+  {%
+    \pgf@process{\radius}
+    \pgf@xa=\pgf@x%
+    \pgf@process{\centerpoint}
+    \advance\pgf@x by\pgf@xa%
+    \pgf@y=0pt
+  }
+  \anchor{north east}
+  {
+    \pgf@process{\radius}
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \pgf@process{\centerpoint}
+    \advance\pgf@x by0.707107\pgf@xa
+    \advance\pgf@y by0.707107\pgf@ya
+  }
+  \anchor{south east}
+  {
+    \pgf@process{\radius}
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \pgf@process{\centerpoint}
+    \advance\pgf@x by0.707107\pgf@xa
+    \advance\pgf@y by-0.707107\pgf@ya
+  }
+  \anchorborder{
+    \edef\pgf@marshal{%
+      \noexpand\pgfpointborderellipse
+      {\noexpand\pgfpoint{\the\pgf@x}{\the\pgf@y}}
+      {\noexpand\radius}%
+    }%
+    \pgf@marshal%
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \centerpoint%
+    \advance\pgf@x by\pgf@xa%
+    \advance\pgf@y by\pgf@ya%
+  }
+
+  %
+  % Background path
+  %
+  \backgroundpath
+  {
+    \pgf@process{\radius}%
+    \@tempdima=\pgf@x%
+    \@tempdimb=\pgf@y%
+    \setlength{\pgf@xb}{\pgfshapeouterxsep}%  
+    \setlength{\pgf@yb}{\pgfshapeouterysep}%  
+    \advance\@tempdima by-\pgf@xb%
+    \advance\@tempdimb by-\pgf@yb%
+    \pgfpathellipse{\centerpoint}{\pgfpoint{\@tempdima}{0pt}}{\pgfpoint{0pt}{\@tempdimb}}%
+  }
+}
+
+
+\pgfdeclareshape{cross out}
+{
+  \inheritsavedanchors[from=rectangle] % this is nearly a rectangle
+  \inheritanchorborder[from=rectangle]
+  \inheritanchor[from=rectangle]{north}
+  \inheritanchor[from=rectangle]{north west}
+  \inheritanchor[from=rectangle]{north east}
+  \inheritanchor[from=rectangle]{center}
+  \inheritanchor[from=rectangle]{west}
+  \inheritanchor[from=rectangle]{east}
+  \inheritanchor[from=rectangle]{mid}
+  \inheritanchor[from=rectangle]{mid west}
+  \inheritanchor[from=rectangle]{mid east}
+  \inheritanchor[from=rectangle]{base}
+  \inheritanchor[from=rectangle]{base west}
+  \inheritanchor[from=rectangle]{base east}
+  \inheritanchor[from=rectangle]{south}
+  \inheritanchor[from=rectangle]{south west}
+  \inheritanchor[from=rectangle]{south east}
+  \foregroundpath{
+    % store lower right in xa/ya and upper right in xb/yb
+    \southwest \pgf@xa=\pgf@x \pgf@ya=\pgf@y
+    \northeast \pgf@xb=\pgf@x \pgf@yb=\pgf@y
+    \pgfpathmoveto{\pgfpoint{\pgf@xa}{\pgf@ya}}
+    \pgfpathlineto{\pgfpoint{\pgf@xb}{\pgf@yb}}
+    \pgfpathmoveto{\pgfpoint{\pgf@xa}{\pgf@yb}}
+    \pgfpathlineto{\pgfpoint{\pgf@xb}{\pgf@ya}}
+ }
+}
+
+
+\pgfdeclareshape{strike out}
+{
+  \inheritsavedanchors[from=rectangle] % this is nearly a rectangle
+  \inheritanchorborder[from=rectangle]
+  \inheritanchor[from=rectangle]{north}
+  \inheritanchor[from=rectangle]{north west}
+  \inheritanchor[from=rectangle]{north east}
+  \inheritanchor[from=rectangle]{center}
+  \inheritanchor[from=rectangle]{west}
+  \inheritanchor[from=rectangle]{east}
+  \inheritanchor[from=rectangle]{mid}
+  \inheritanchor[from=rectangle]{mid west}
+  \inheritanchor[from=rectangle]{mid east}
+  \inheritanchor[from=rectangle]{base}
+  \inheritanchor[from=rectangle]{base west}
+  \inheritanchor[from=rectangle]{base east}
+  \inheritanchor[from=rectangle]{south}
+  \inheritanchor[from=rectangle]{south west}
+  \inheritanchor[from=rectangle]{south east}
+  \foregroundpath{
+    \pgfpathmoveto{\southwest}
+    \pgfpathlineto{\northeast}
+ }
+}
+
+
+\pgfdeclareshape{forbidden sign}
+{
+  \inheritsavedanchors[from=circle] % this is nearly a circle
+  \inheritanchorborder[from=circle]
+  \inheritanchor[from=circle]{north}
+  \inheritanchor[from=circle]{north west}
+  \inheritanchor[from=circle]{north east}
+  \inheritanchor[from=circle]{center}
+  \inheritanchor[from=circle]{west}
+  \inheritanchor[from=circle]{east}
+  \inheritanchor[from=circle]{mid}
+  \inheritanchor[from=circle]{mid west}
+  \inheritanchor[from=circle]{mid east}
+  \inheritanchor[from=circle]{base}
+  \inheritanchor[from=circle]{base west}
+  \inheritanchor[from=circle]{base east}
+  \inheritanchor[from=circle]{south}
+  \inheritanchor[from=circle]{south west}
+  \inheritanchor[from=circle]{south east}
+  \inheritbackgroundpath[from=circle]
+  \foregroundpath{
+    \centerpoint%
+    \pgf@xc=\pgf@x%
+    \pgf@yc=\pgf@y%
+    \@tempdima=\radius%
+    \setlength{\pgf@xb}{\pgfshapeouterxsep}%  
+    \setlength{\pgf@yb}{\pgfshapeouterysep}%  
+    \ifdim\pgf@xb<\pgf@yb%
+      \advance\@tempdima by-\pgf@yb%
+    \else%
+      \advance\@tempdima by-\pgf@xb%
+    \fi%
+    \pgfpathmoveto{\pgfpointadd{\pgfpoint{\pgf@xc}{\pgf@yc}}{\pgfpoint{-0.707107\@tempdima}{-0.707107\@tempdima}}}
+    \pgfpathlineto{\pgfpointadd{\pgfpoint{\pgf@xc}{\pgf@yc}}{\pgfpoint{0.707107\@tempdima}{0.707107\@tempdima}}}
+  }
+}
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/libraries/pgflibrarysnakes.code.tex b/Master/texmf-dist/tex/generic/pgf/libraries/pgflibrarysnakes.code.tex
new file mode 100644
index 00000000000..3440477499e
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/libraries/pgflibrarysnakes.code.tex
@@ -0,0 +1,369 @@
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/libraries/pgflibrarysnakes.code.tex,v 1.9 2005/10/13 10:12:31 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+\newdimen\pgfsnakesegmentamplitude
+\newdimen\pgfsnakesegmentlength
+\def\pgfsnakesegmentangle{45}
+\def\pgfsnakesegmentobjectlength{\pgfsnakesegmentamplitude}
+\def\pgfsnakesegmentaspect{0.5}
+
+\pgfsnakesegmentlength=10pt
+\pgfsnakesegmentamplitude=2.5pt
+
+
+
+% snake snake
+%
+% This snake produces a hopefully optically pleasing squiggly snake. 
+%
+% Parameters: \pgfsnakesegmentamplitude, \pgfsnakesegmentlength
+
+\pgfdeclaresnake{snake}{initial}
+{
+  \state{initial}[switch if less than=.625\pgfsnakesegmentlength to final,
+                  width=.3125\pgfsnakesegmentlength,
+                  next state=down]
+  { 
+    \pgfpathcurveto
+    {\pgfpoint{.125\pgfsnakesegmentlength}{0pt}}
+    {\pgfpoint{.1875\pgfsnakesegmentlength}{\pgfsnakesegmentamplitude}}
+    {\pgfpoint{.3125\pgfsnakesegmentlength}{\pgfsnakesegmentamplitude}}
+  }
+  \state{down}[switch if less than=.8125\pgfsnakesegmentlength to end down,
+               width=.5\pgfsnakesegmentlength,
+               next state=up]
+  {
+    \pgfpathcosine{\pgfpoint{.25\pgfsnakesegmentlength}{-\pgfsnakesegmentamplitude}}
+    \pgfpathsine{\pgfpoint{.25\pgfsnakesegmentlength}{-\pgfsnakesegmentamplitude}}
+  }               
+  \state{up}[switch if less than=.8125\pgfsnakesegmentlength to end up,
+             width=.5\pgfsnakesegmentlength,
+             next state=down]
+  {
+    \pgfpathcosine{\pgfpoint{.25\pgfsnakesegmentlength}{\pgfsnakesegmentamplitude}}
+    \pgfpathsine{\pgfpoint{.25\pgfsnakesegmentlength}{\pgfsnakesegmentamplitude}}
+  }               
+  \state{end down}[width=.3125\pgfsnakesegmentlength,
+                   next state=final]
+  {
+    \pgfpathcurveto
+    {\pgfpoint{.125\pgfsnakesegmentlength}{\pgfsnakesegmentamplitude}}
+    {\pgfpoint{.1875\pgfsnakesegmentlength}{0pt}}
+    {\pgfpoint{.3125\pgfsnakesegmentlength}{0pt}}
+  }  
+  \state{end up}[width=.3125\pgfsnakesegmentlength,
+                 next state=final]
+  {
+    \pgfpathcurveto
+    {\pgfpoint{.125\pgfsnakesegmentlength}{-\pgfsnakesegmentamplitude}}
+    {\pgfpoint{.1875\pgfsnakesegmentlength}{0pt}}
+    {\pgfpoint{.3125\pgfsnakesegmentlength}{0pt}}
+  }  
+  \state{final}
+  { \pgfpathlineto{\pgfpoint{\pgfsnakeremainingdistance}{0pt}} }
+}
+
+
+
+
+% zigzag snake
+%
+% Parameters: \pgfsnakesegmentamplitude, \pgfsnakesegmentlength
+
+\pgfdeclaresnake{zigzag}{up}
+{
+  \state{up}[width=.5\pgfsnakesegmentlength,%
+             next state=down]
+  {
+    \pgfpathlineto{\pgfpoint{.25\pgfsnakesegmentlength}{\pgfsnakesegmentamplitude}}
+    \pgfpathlineto{\pgfpoint{.5\pgfsnakesegmentlength}{0pt}}
+  }
+  \state{down}[width=.5\pgfsnakesegmentlength,%
+               next state=up]
+  {
+    \pgfpathlineto{\pgfpoint{.25\pgfsnakesegmentlength}{-\pgfsnakesegmentamplitude}}
+    \pgfpathlineto{\pgfpoint{.5\pgfsnakesegmentlength}{0pt}}
+  }
+  \state{final}
+  { \pgfpathlineto{\pgfpoint{\pgfsnakeremainingdistance}{0pt}} }
+}
+
+
+
+% saw snake
+%
+% Parameters: \pgfsnakesegmentamplitude, \pgfsnakesegmentlength
+
+\pgfdeclaresnake{saw}{initial}
+{
+  \state{initial}[width=\pgfsnakesegmentlength]
+  {
+    \pgfpathlineto{\pgfpoint{\pgfsnakesegmentlength}{\pgfsnakesegmentamplitude}}
+    \pgfpathlineto{\pgfpoint{\pgfsnakesegmentlength}{0pt}}
+  }
+  \state{final}
+  {
+    \pgfpathlineto{\pgfpoint{\pgfsnakeremainingdistance}{0pt}}
+  }
+}
+
+
+% coil snake
+%
+% Parameters: \pgfsnakesegmentamplitude, \pgfsnakesegmentlength,
+
+\pgfdeclaresnake{coil}{coil}
+{
+  \state{coil}[switch if less than=%
+    1.5\pgfsnakesegmentlength+%
+    \pgfsnakesegmentaspect\pgfsnakesegmentamplitude+%
+    \pgfsnakesegmentaspect\pgfsnakesegmentamplitude to last,
+               width=\pgfsnakesegmentlength]
+  {
+    \pgfpathcurveto
+    {\pgfpoint@oncoil{0    }{ 0.555}{1}}
+    {\pgfpoint@oncoil{0.445}{ 1    }{2}}
+    {\pgfpoint@oncoil{1    }{ 1    }{3}}
+    \pgfpathcurveto
+    {\pgfpoint@oncoil{1.555}{ 1    }{4}}
+    {\pgfpoint@oncoil{2    }{ 0.555}{5}}
+    {\pgfpoint@oncoil{2    }{ 0    }{6}}
+    \pgfpathcurveto
+    {\pgfpoint@oncoil{2    }{-0.555}{7}}
+    {\pgfpoint@oncoil{1.555}{-1    }{8}}
+    {\pgfpoint@oncoil{1    }{-1    }{9}}
+    \pgfpathcurveto
+    {\pgfpoint@oncoil{0.445}{-1    }{10}}
+    {\pgfpoint@oncoil{0    }{-0.555}{11}}
+    {\pgfpoint@oncoil{0    }{ 0    }{12}}
+  }
+  \state{last}[width=.5\pgfsnakesegmentlength+%
+    \pgfsnakesegmentaspect\pgfsnakesegmentamplitude+%
+    \pgfsnakesegmentaspect\pgfsnakesegmentamplitude,next state=final]
+  {
+    \pgfpathcurveto
+    {\pgfpoint@oncoil{0    }{ 0.555}{1}}
+    {\pgfpoint@oncoil{0.445}{ 1    }{2}}
+    {\pgfpoint@oncoil{1    }{ 1    }{3}}
+    \pgfpathcurveto
+    {\pgfpoint@oncoil{1.555}{ 1    }{4}}
+    {\pgfpoint@oncoil{2    }{ 0.555}{5}}
+    {\pgfpoint@oncoil{2    }{ 0    }{6}}
+  }
+  \state{final}
+  {
+    \pgfpathlineto{\pgfpoint{\pgfsnakeremainingdistance}{0pt}}
+  }
+}
+
+\def\pgfpoint@oncoil#1#2#3{%
+  \pgf@x=#1\pgfsnakesegmentamplitude%
+  \pgf@x=\pgfsnakesegmentaspect\pgf@x%
+  \pgf@y=#2\pgfsnakesegmentamplitude%
+  \pgf@xa=0.083333333333\pgfsnakesegmentlength%
+  \advance\pgf@x by#3\pgf@xa%
+}
+
+
+% bumps snake
+%
+% Parameters: \pgfsnakesegmentamplitude, \pgfsnakesegmentlength
+
+\pgfdeclaresnake{bumps}{initial}
+{
+  \state{initial}[width=.5\pgfsnakesegmentlength]
+  {
+    \pgfpathcurveto
+    {\pgfpoint{0pt}{.555\pgfsnakesegmentamplitude}}
+    {\pgfpoint{0.11125\pgfsnakesegmentlength}{\pgfsnakesegmentamplitude}}
+    {\pgfpoint{.25\pgfsnakesegmentlength}{\pgfsnakesegmentamplitude}}
+    \pgfpathcurveto
+    {\pgfpoint{.38875\pgfsnakesegmentlength}{\pgfsnakesegmentamplitude}}
+    {\pgfpoint{.5\pgfsnakesegmentlength}{.5\pgfsnakesegmentamplitude}}
+    {\pgfpoint{.5\pgfsnakesegmentlength}{0\pgfsnakesegmentamplitude}}
+  }
+  \state{final}
+  {
+    \pgfpathlineto{\pgfpoint{\pgfsnakeremainingdistance}{0pt}}
+  }
+}
+
+
+
+% expanding waves snake
+%
+% Parameters: \pgfsnakesegmentangle, \pgfsnakesegmentlength
+
+\pgfdeclaresnake{expanding waves}{initial}
+{
+  \state{initial}[width=\pgfsnakesegmentlength,next state=wave]
+  {}
+
+  \state{wave}[switch if less than=\pgfsnakesegmentlength to last,
+               width=\pgfsnakesegmentlength]
+  {
+    \pgfpathmoveto{
+      \pgfpointadd
+      {\pgfpoint{-\pgfsnakecompleteddistance}{0pt}}%
+      {\pgfpointpolar{\pgfsnakesegmentangle}{\pgfsnakecompleteddistance}}}%
+    \pgfpatharc{\pgfsnakesegmentangle}{-\pgfsnakesegmentangle}{\pgfsnakecompleteddistance}%
+  }
+  \state{last}[width=0pt,next state=final]
+  {
+    \pgfpathmoveto{
+      \pgfpointadd
+      {\pgfpoint{-\pgfsnakecompleteddistance}{0pt}}%
+      {\pgfpointpolar{\pgfsnakesegmentangle}{\pgfsnakecompleteddistance}}}%
+    \pgfpatharc{\pgfsnakesegmentangle}{-\pgfsnakesegmentangle}{\pgfsnakecompleteddistance}%
+  }
+  \state{final}
+  {
+    \pgfpathmoveto{\pgfpoint{\pgfsnakeremainingdistance}{0pt}}
+  }
+}
+
+
+
+% waves snake
+%
+% Parameters: \pgfsnakesegmentangle, \pgfsnakesegmentlength
+
+\pgfdeclaresnake{waves}{wave}
+{
+  \state{wave}[width=\pgfsnakesegmentlength]
+  {
+    \pgftransformxshift{\pgfsnakesegmentlength}
+    \pgfpathmoveto{
+      \pgfpointadd
+      {\pgfpoint{-\pgfsnakesegmentobjectlength}{0pt}}%
+      {\pgfpointpolar{\pgfsnakesegmentangle}{\pgfsnakesegmentobjectlength}}}%
+    \pgfpatharc{\pgfsnakesegmentangle}{-\pgfsnakesegmentangle}{\pgfsnakesegmentobjectlength}%
+  }
+  \state{final}
+  {
+    \pgfpathmoveto{\pgfpoint{\pgfsnakeremainingdistance}{0pt}}
+  }
+}
+
+
+% triangle snakes
+%
+% Parameters: \pgfsnakesegmentlength, \pgfsnakeobjectsize, \pgfsnakesegmentamplitude
+
+\pgfdeclaresnake{triangles}{triangle}
+{
+  \state{triangle}[switch if less than=\pgfsnakesegmentlength to last,
+                   width=\pgfsnakesegmentlength]
+  {
+    \pgfpathmoveto{\pgfpoint{0pt}{\pgfsnakesegmentamplitude}}
+    \pgfpathlineto{\pgfpoint{\pgfsnakesegmentobjectlength}{0pt}}
+    \pgfpathlineto{\pgfpoint{0pt}{-\pgfsnakesegmentamplitude}}
+    \pgfpathclose
+  }
+  \state{last}[width=\pgfsnakesegmentobjectlength,next state=final]
+  {
+    \pgfpathmoveto{\pgfpoint{0pt}{\pgfsnakesegmentamplitude}}
+    \pgfpathlineto{\pgfpoint{\pgfsnakesegmentobjectlength}{0pt}}
+    \pgfpathlineto{\pgfpoint{0pt}{-\pgfsnakesegmentamplitude}}
+    \pgfpathclose
+  }
+  \state{final}
+  {
+    \pgfpathmoveto{\pgfpoint{\pgfsnakeremainingdistance}{0pt}}
+  }
+}
+
+
+
+% ticks snakes
+%
+% Parameters: \pgfsnakesegmentlength, \pgfsnakesegmentamplitude
+
+\pgfdeclaresnake{ticks}{ticks}
+{
+  \state{ticks}[width=\pgfsnakesegmentlength]
+  {
+    \pgfpathmoveto{\pgfpoint{0pt}{\pgfsnakesegmentamplitude}}
+    \pgfpathlineto{\pgfpoint{0pt}{-\pgfsnakesegmentamplitude}}
+  }
+  \state{final}
+  {
+    \pgfpathmoveto{\pgfpoint{0pt}{\pgfsnakesegmentamplitude}}
+    \pgfpathlineto{\pgfpoint{0pt}{-\pgfsnakesegmentamplitude}}
+    \pgfpathmoveto{\pgfpoint{\pgfsnakeremainingdistance}{0pt}}
+  }
+}
+
+
+% border snake
+%
+% Parameters: \pgfsnakesegmentlength, \pgfsnakesegmentamplitude, \pgfsnakesegmentangle
+
+\pgfdeclaresnake{border}{tick}
+{
+  \state{tick}[switch if less than=\pgfsnakesegmentlength to last,
+               width=\pgfsnakesegmentlength]
+  {
+    \pgfpathmoveto{\pgfpointorigin}
+    \pgfpathlineto{\pgfpointpolar{\pgfsnakesegmentangle}{\pgfsnakesegmentamplitude}}
+  }
+  \state{last}[width=\pgfsnakesegmentamplitude,next state=final]
+  {
+    \pgfpathmoveto{\pgfpointorigin}
+    \pgfpathlineto{\pgfpointpolar{\pgfsnakesegmentangle}{\pgfsnakesegmentamplitude}}
+  }  
+  \state{final}
+  {
+    \pgfpathmoveto{\pgfpoint{\pgfsnakeremainingdistance}{0pt}}
+  }
+}
+
+
+
+
+% brace snakes
+%
+% Parameters: \pgfsnakesegmentamplitude
+
+\pgfdeclaresnake{brace}{brace}
+{
+  \state{brace}[width=\pgfsnakeremainingdistance,next state=final]
+  {
+    \pgfpathmoveto{\pgfpoint{0pt}{0pt}}
+    \pgfpathcurveto
+    {\pgfpoint{.15\pgfsnakesegmentamplitude}{.3\pgfsnakesegmentamplitude}}
+    {\pgfpoint{.5\pgfsnakesegmentamplitude}{.5\pgfsnakesegmentamplitude}}
+    {\pgfpoint{\pgfsnakesegmentamplitude}{.5\pgfsnakesegmentamplitude}}
+    {
+      \pgftransformxshift{\pgfsnakesegmentaspect\pgfsnakeremainingdistance}
+      \pgfpathlineto{\pgfpoint{-\pgfsnakesegmentamplitude}{.5\pgfsnakesegmentamplitude}}
+      \pgfpathcurveto
+      {\pgfpoint{-.5\pgfsnakesegmentamplitude}{.5\pgfsnakesegmentamplitude}}
+      {\pgfpoint{-.15\pgfsnakesegmentamplitude}{.7\pgfsnakesegmentamplitude}}
+      {\pgfpoint{0\pgfsnakesegmentamplitude}{1\pgfsnakesegmentamplitude}}
+      \pgfpathcurveto
+      {\pgfpoint{.15\pgfsnakesegmentamplitude}{.7\pgfsnakesegmentamplitude}}
+      {\pgfpoint{.5\pgfsnakesegmentamplitude}{.5\pgfsnakesegmentamplitude}}
+      {\pgfpoint{\pgfsnakesegmentamplitude}{.5\pgfsnakesegmentamplitude}}
+    }
+    {
+      \pgftransformxshift{\pgfsnakeremainingdistance}
+      \pgfpathlineto{\pgfpoint{-\pgfsnakesegmentamplitude}{.5\pgfsnakesegmentamplitude}}
+      \pgfpathcurveto
+      {\pgfpoint{-.5\pgfsnakesegmentamplitude}{.5\pgfsnakesegmentamplitude}}
+      {\pgfpoint{-.15\pgfsnakesegmentamplitude}{.3\pgfsnakesegmentamplitude}}
+      {\pgfpoint{0pt}{0pt}}
+    }
+  }
+  \state{final}
+  {}
+}
+
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/libraries/pgflibrarytikzbackgrounds.code.tex b/Master/texmf-dist/tex/generic/pgf/libraries/pgflibrarytikzbackgrounds.code.tex
new file mode 100644
index 00000000000..260a8f9a28a
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/libraries/pgflibrarytikzbackgrounds.code.tex
@@ -0,0 +1,131 @@
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/libraries/pgflibrarytikzbackgrounds.code.tex,v 1.1 2005/08/13 18:59:56 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+% Layers
+
+\pgfdeclarelayer{background}
+\pgfsetlayers{background,main}
+
+
+% Main style
+
+\tikzstyle{background rectangle}= [draw]
+\tikzstyle{background top}=       [draw]
+\tikzstyle{background bottom}=    [draw]
+\tikzstyle{background left}=      [draw]
+\tikzstyle{background right}=     [draw]
+\tikzstyle{background grid}=      [help lines,draw]
+
+\define@key{tikz}{inner frame sep}{\def\tikz@framexsep{#1}\def\tikz@frameysep{#1}}
+\define@key{tikz}{inner frame xsep}{\def\tikz@framexsep{#1}}
+\define@key{tikz}{inerr frame ysep}{\def\tikz@frameysep{#1}}
+\def\tikz@framexsep{1ex}
+\def\tikz@frameysep{1ex}
+
+\define@key{tikz}{outer frame sep}{\def\tikz@outerframexsep{#1}\def\tikz@outerframeysep{#1}}
+\define@key{tikz}{outer frame xsep}{\def\tikz@outerframexsep{#1}}
+\define@key{tikz}{outer frame ysep}{\def\tikz@outerframeysep{#1}}
+\def\tikz@outerframexsep{0ex}
+\def\tikz@outerframeysep{0ex}
+
+
+% Looseness
+
+\tikzstyle{loose background}=     [inner frame sep=2ex]
+\tikzstyle{tight background}=     [inner frame sep=0ex]
+
+
+
+% Showing background styles
+
+\tikzstyle{framed}=                   [style=show background rectangle]
+\tikzstyle{gridded}=                  [style=show background grid]
+
+\tikzstyle{show background rectangle}=[execute at end picture=\tikz@background@framed]
+\tikzstyle{show background top}=      [execute at end picture=\tikz@background@top]
+\tikzstyle{show background bottom}=   [execute at end picture=\tikz@background@bottom]
+\tikzstyle{show background left}=     [execute at end picture=\tikz@background@left]
+\tikzstyle{show background right}=    [execute at end picture=\tikz@background@right]
+\tikzstyle{show background grid}=     [execute at end picture=\tikz@background@grid]
+
+
+% Implementation
+
+\def\tikz@background@save{%
+  \ifx\tikz@bg@minx\@undefined%
+    \pgf@xb=\pgf@picminx%
+    \pgf@yb=\pgf@picminy%
+    \pgf@xc=\pgf@picmaxx%
+    \pgf@yc=\pgf@picmaxy%
+    \setlength{\pgf@x}{\tikz@framexsep}%
+    \setlength{\pgf@y}{\tikz@frameysep}%
+    \advance\pgf@xb by-\pgf@x%
+    \advance\pgf@yb by-\pgf@y%
+    \advance\pgf@xc by\pgf@x%
+    \advance\pgf@yc by\pgf@y%
+    \edef\tikz@bg@minx{\the\pgf@xb}%
+    \edef\tikz@bg@miny{\the\pgf@yb}%
+    \edef\tikz@bg@maxx{\the\pgf@xc}%
+    \edef\tikz@bg@maxy{\the\pgf@yc}%
+    \setlength{\pgf@x}{\tikz@outerframexsep}%
+    \setlength{\pgf@y}{\tikz@outerframeysep}%
+    \advance\pgf@xb by-\pgf@x%
+    \advance\pgf@yb by-\pgf@y%
+    \advance\pgf@xc by\pgf@x%
+    \advance\pgf@yc by\pgf@y%
+    \edef\tikz@bg@outerminx{\the\pgf@xb}%
+    \edef\tikz@bg@outerminy{\the\pgf@yb}%
+    \edef\tikz@bg@outermaxx{\the\pgf@xc}%
+    \edef\tikz@bg@outermaxy{\the\pgf@yc}%
+  \fi%
+}
+
+\def\tikz@background@framed{%
+  \tikz@background@save%
+  \pgfonlayer{background}
+    \path[style=background rectangle] (\tikz@bg@minx,\tikz@bg@miny) rectangle (\tikz@bg@maxx,\tikz@bg@maxy);
+  \endpgfonlayer
+}
+
+\def\tikz@background@top{%
+  \tikz@background@save%
+  \pgfonlayer{background}
+    \path[style=background top] (\tikz@bg@outerminx,\tikz@bg@maxy) -- (\tikz@bg@outermaxx,\tikz@bg@maxy);
+  \endpgfonlayer
+}
+
+\def\tikz@background@bottom{%
+  \tikz@background@save%
+  \pgfonlayer{background}
+    \path[style=background bottom] (\tikz@bg@outerminx,\tikz@bg@miny) -- (\tikz@bg@outermaxx,\tikz@bg@miny);
+  \endpgfonlayer
+}
+
+\def\tikz@background@left{%
+  \tikz@background@save%
+  \pgfonlayer{background}
+    \path[style=background left] (\tikz@bg@minx,\tikz@bg@outerminy) -- (\tikz@bg@minx,\tikz@bg@outermaxy);
+  \endpgfonlayer
+}
+
+\def\tikz@background@right{%
+  \tikz@background@save%
+  \pgfonlayer{background}
+    \path[style=background right] (\tikz@bg@maxx,\tikz@bg@outerminy) -- (\tikz@bg@maxx,\tikz@bg@outermaxy);
+  \endpgfonlayer
+}
+
+\def\tikz@background@grid{%
+  \tikz@background@save%
+  \pgfonlayer{background}
+    \path[style=background grid] (\tikz@bg@minx,\tikz@bg@miny) grid (\tikz@bg@maxx,\tikz@bg@maxy);
+  \endpgfonlayer
+}
+
+                                    
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/libraries/pgflibrarytikztrees.code.tex b/Master/texmf-dist/tex/generic/pgf/libraries/pgflibrarytikztrees.code.tex
new file mode 100644
index 00000000000..8f472237604
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/libraries/pgflibrarytikztrees.code.tex
@@ -0,0 +1,94 @@
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/libraries/pgflibrarytikztrees.code.tex,v 1.4 2005/09/02 16:05:44 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+
+%
+% Three point growth
+%
+
+\define@key{tikz}{grow via three points}{\let\tikz@grow=\tikz@grow@three\tikz@parse@three#1}
+
+\def\tikz@parse@three one child at#1(#2)#3and two children at#4(#5)#6and#7(#8){%
+  \def\tikz@tree@one@child{\tikz@scan@one@point\pgf@process(#2)}
+  \def\tikz@tree@left@child{\tikz@scan@one@point\pgf@process(#5)}
+  \def\tikz@tree@right@child{\tikz@scan@one@point\pgf@process(#8)}
+}
+
+\def\tikz@grow@three{%
+  \pgf@process{\tikz@tree@one@child}%
+  \pgf@xa=\pgf@x%
+  \pgf@ya=\pgf@y%
+  \pgf@process{\tikz@tree@left@child}%
+  \pgf@xb=\pgf@x%
+  \pgf@yb=\pgf@y%
+  \advance\pgf@xb by-\pgf@xa%
+  \advance\pgf@yb by-\pgf@ya%
+  \pgf@process{\tikz@tree@right@child}%
+  \pgf@xc=\pgf@x%
+  \pgf@yc=\pgf@y%
+  \advance\pgf@xc by-\pgf@xa%
+  \advance\pgf@yc by-\pgf@ya%
+  \advance\pgf@xc by-\pgf@xb%
+  \advance\pgf@yc by-\pgf@yb%
+  \advance\tikznumberofchildren by-1\relax%
+  \pgf@xb=\tikznumberofchildren\pgf@xb\relax%
+  \pgf@yb=\tikznumberofchildren\pgf@yb\relax%
+  \advance\tikznumberofcurrentchild by-1\relax%
+  \pgf@xc=\tikznumberofcurrentchild\pgf@xc\relax%
+  \pgf@yc=\tikznumberofcurrentchild\pgf@yc\relax%
+  \advance\pgf@xa by\pgf@xb%
+  \advance\pgf@xa by\pgf@xc%
+  \advance\pgf@ya by\pgf@yb%
+  \advance\pgf@ya by\pgf@yc%
+  \edef\pgf@temp{\noexpand\pgftransformshift{\noexpand\pgfpoint{\the\pgf@xa}{\the\pgf@ya}}}%
+  \pgf@temp%
+}
+
+%
+% Circle grow
+%
+
+\tikzstyle{grow cyclic}=[growth function=\tikz@grow@circle]
+
+\define@key{tikz}{sibling angle}{\edef\tikz@sibling@angle{#1}}
+\def\tikz@sibling@angle{20}
+
+\def\tikz@grow@circle{%
+  \c@pgf@counta=\tikz@sibling@angle\relax%
+  \c@pgf@countb=\tikz@sibling@angle\relax%
+  \divide\c@pgf@counta by2\relax%
+  \multiply\c@pgf@countb by\tikznumberofcurrentchild\relax%
+  \c@pgf@countc=-\c@pgf@counta\relax
+  \multiply\c@pgf@countc by\tikznumberofchildren\relax%
+  \advance\c@pgf@countc by-\c@pgf@counta\relax
+  \advance\c@pgf@countc by\c@pgf@countb\relax
+  \pgftransformrotate{\the\c@pgf@countc}%
+  \pgftransformxshift{\the\tikzleveldistance}%
+}
+
+
+%
+% Connections
+%
+
+\tikzstyle{edge from parent fork down}=
+  [edge from parent path={(\tikzparentnode\tikzparentanchor) -- +(0pt,-.5\tikzleveldistance)  -| (\tikzchildnode\tikzchildanchor)}]
+
+\tikzstyle{edge from parent fork up}=
+  [edge from parent path={(\tikzparentnode\tikzparentanchor) -- +(0pt,.5\tikzleveldistance)  -| (\tikzchildnode\tikzchildanchor)}]
+
+\tikzstyle{edge from parent fork left}=
+  [edge from parent path={(\tikzparentnode\tikzparentanchor) -- +(-.5\tikzleveldistance,0pt) |- (\tikzchildnode\tikzchildanchor)}]
+
+\tikzstyle{edge from parent fork right}=
+  [edge from parent path={(\tikzparentnode\tikzparentanchor) -- +(.5\tikzleveldistance,0pt) |- (\tikzchildnode\tikzchildanchor)}]
+
+
+                                    
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/systemlayer/pgf.cfg b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgf.cfg
new file mode 100644
index 00000000000..a719fda2380
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgf.cfg
@@ -0,0 +1,23 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/systemlayer/pgf.cfg,v 1.1.1.1 2005/06/29 12:14:04 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+% Default driver:
+\ifx\pgfsysdriver\@undefined
+  \def\pgfsysdriver{pgfsys-\Gin@driver}
+\fi
+
+
+% Uncomment the following if you use dvipdfm and plain tex:
+% \def\pgfsysdriver{pgfsys-dvipdfm.def}
+
+\endinput
+ 
+%%% Local Variables: 
+%%% mode: latex
+%%% End: 
diff --git a/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-common-pdf.def b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-common-pdf.def
new file mode 100644
index 00000000000..3f2c726beb8
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-common-pdf.def
@@ -0,0 +1,91 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/systemlayer/pgfsys-common-pdf.def,v 1.4 2005/10/18 18:03:38 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+
+% Driver commands for pdf
+
+% Path construction:
+\def\pgfsys@lineto#1#2{\pgf@sys@bp{#1}\pgf@sys@bp{#2}\pgfsysprotocol@literal{l}}
+\def\pgfsys@moveto#1#2{\pgf@sys@bp{#1}\pgf@sys@bp{#2}\pgfsysprotocol@literal{m}}
+\def\pgfsys@curveto#1#2#3#4#5#6{%
+  \pgf@sys@bp{#1}\pgf@sys@bp{#2}\pgf@sys@bp{#3}\pgf@sys@bp{#4}\pgf@sys@bp{#5}\pgf@sys@bp{#6}\pgfsysprotocol@literal{c}}
+\def\pgfsys@rect#1#2#3#4{\pgf@sys@bp{#1}\pgf@sys@bp{#2}\pgf@sys@bp{#3}\pgf@sys@bp{#4}\pgfsysprotocol@literal{re}}
+\def\pgfsys@closepath{\pgfsysprotocol@literal{h}}
+
+% Path usage:
+\def\pgfsys@stroke{\pgfsysprotocol@literal{S}}
+\def\pgfsys@closestroke{\pgfsysprotocol@literal{s}}
+\def\pgfsys@fill{\ifpgfsys@eorule\pgfsysprotocol@literal{f*}\else\pgfsysprotocol@literal{f}\fi}
+\def\pgfsys@fillstroke{\ifpgfsys@eorule\pgfsysprotocol@literal{B*}\else\pgfsysprotocol@literal{B}\fi}
+\def\pgfsys@clipnext{\ifpgfsys@eorule\pgfsysprotocol@literal{W*}\else\pgfsysprotocol@literal{W}\fi}
+\def\pgfsys@discardpath{\pgfsysprotocol@literal{n}}
+
+% Transformation:
+\def\pgfsys@transformcm#1#2#3#4#5#6{%
+  \pgfsysprotocol@literalbuffered{#1 #2 #3 #4}\pgf@sys@bp{#5}\pgf@sys@bp{#6}\pgfsysprotocol@literal{cm}}
+
+% Scopes
+\def\pgfsys@beginscope{\pgfsysprotocol@literal{q}}
+\def\pgfsys@endscope{\pgfsysprotocol@literal{Q}}
+
+% Graphics state
+\def\pgfsys@setdash#1#2{%
+  \pgfsysprotocol@literalbuffered{[}%
+  \@for\pgf@sys@temp:={#1}\do{\pgf@sys@bp{\pgf@sys@temp}}%
+  \pgfsysprotocol@literalbuffered{]}%
+  \pgf@sys@bp{#2}\pgfsysprotocol@literal{d}}
+\def\pgfsys@setlinewidth#1{\pgf@sys@bp{#1}\pgfsysprotocol@literal{w}}
+\def\pgfsys@setmiterlimit#1{\pgfsysprotocol@literal{#1 M}}
+\def\pgfsys@buttcap{\pgfsysprotocol@literal{0 J}}
+\def\pgfsys@roundcap{\pgfsysprotocol@literal{1 J}}
+\def\pgfsys@rectcap{\pgfsysprotocol@literal{2 J}}
+\def\pgfsys@miterjoin{\pgfsysprotocol@literal{0 j}}
+\def\pgfsys@roundjoin{\pgfsysprotocol@literal{1 j}}
+\def\pgfsys@beveljoin{\pgfsysprotocol@literal{2 j}}
+\def\pgfsys@color@rgb@stroke#1#2#3{\pgfsysprotocol@literal{#1 #2 #3 RG}}
+\def\pgfsys@color@rgb@fill#1#2#3{\pgfsysprotocol@literal{#1 #2 #3 rg}}
+\def\pgfsys@color@cmyk@stroke#1#2#3#4{\pgfsysprotocol@literal{#1 #2 #3 #4 K}}
+\def\pgfsys@color@cmyk@fill#1#2#3#4{\pgfsysprotocol@literal{#1 #2 #3 #4 k}}
+\def\pgfsys@color@cmy@stroke#1#2#3{\pgfsysprotocol@literal{#1 #2 #3 0 K}}
+\def\pgfsys@color@cmy@fill#1#2#3{\pgfsysprotocol@literal{#1 #2 #3 0 k}}
+\def\pgfsys@color@gray@stroke#1{\pgfsysprotocol@literal{#1 G}}
+\def\pgfsys@color@gray@fill#1{\pgfsysprotocol@literal{#1 g}}
+
+% Opacity
+\def\pgf@sys@pdf@addtopageresources#1{\pgf@sys@fail{adding to page resources}}
+\def\pgf@sys@pdf@readdtopageresources#1{}% not always used
+\def\pgfsys@stroke@opacity#1{%
+  \expandafter\ifx\csname pgf@sys@pdf@so@#1\endcsname\relax%
+    % Hmm... define...
+    \expandafter\gdef\csname pgf@sys@pdf@so@#1\endcsname{/pgf@CA#1}%
+    \pgf@sys@pdf@addtopageresources{/pgf@CA#1 << /CA #1 >>}%
+  \else%
+    \pgf@sys@pdf@readdtopageresources{/pgf@CA#1 << /CA #1 >>}%
+  \fi%
+  \pgfsysprotocol@literal{\csname pgf@sys@pdf@so@#1\endcsname\space gs}%  
+}
+\def\pgfsys@fill@opacity#1{%
+  \expandafter\ifx\csname pgf@sys@pdf@fo@#1\endcsname\relax%
+    % Hmm... define...
+    \expandafter\gdef\csname pgf@sys@pdf@fo@#1\endcsname{/pgf@ca#1}%
+    \pgf@sys@pdf@addtopageresources{/pgf@ca#1 << /ca #1 >>}%
+  \else%
+    \pgf@sys@pdf@readdtopageresources{/pgf@ca#1 << /ca #1 >>}%
+  \fi%
+  \pgfsysprotocol@literal{\csname pgf@sys@pdf@fo@#1\endcsname\space gs}%  
+}
+
+
+
+\endinput
+
+
+%%% Local Variables: 
+%%% mode: latex
+%%% End: 
diff --git a/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-common-postscript.def b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-common-postscript.def
new file mode 100644
index 00000000000..0f6981d04da
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-common-postscript.def
@@ -0,0 +1,155 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/systemlayer/pgfsys-common-postscript.def,v 1.6 2005/10/18 18:03:38 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+
+% Driver commands for postscript
+
+\newif\ifpgf@fillcolor
+\newif\ifpgf@strokecolor
+\newif\ifpgfsys@@clipnext
+
+% Path construction:
+\def\pgfsys@lineto#1#2{\pgf@sys@bp{#1}\pgf@sys@bp{#2}\pgfsysprotocol@literal{lineto}}
+\def\pgfsys@moveto#1#2{\pgf@sys@bp{#1}\pgf@sys@bp{#2}\pgfsysprotocol@literal{moveto}}
+\def\pgfsys@curveto#1#2#3#4#5#6{%
+  \pgf@sys@bp{#1}\pgf@sys@bp{#2}\pgf@sys@bp{#3}\pgf@sys@bp{#4}\pgf@sys@bp{#5}\pgf@sys@bp{#6}\pgfsysprotocol@literal{curveto}}
+\def\pgfsys@rect#1#2#3#4{\pgf@sys@bp{#4}\pgf@sys@bp{#3}\pgf@sys@bp{#1}\pgf@sys@bp{#2}\pgfsysprotocol@literal{pgfe}}
+\def\pgfsys@closepath{\pgfsysprotocol@literal{closepath}}
+
+% Path usage:
+\def\pgfsys@stroke{%
+  \ifpgfsys@@clipnext%
+    \ifpgfsys@eorule%
+      \pgfsysprotocol@literal{gsave pgfsc pgfstr grestore eoclip newpath}%
+    \else%
+      \pgfsysprotocol@literal{gsave pgfsc pgfstr grestore clip newpath}%
+    \fi%
+    \pgfsys@@clipnextfalse%
+  \else%
+    \ifpgf@strokecolor%
+      \pgfsysprotocol@literal{gsave pgfsc pgfstr grestore newpath}%
+    \else%
+      \pgfsysprotocol@literal{pgfstr}%
+    \fi%
+ \fi}
+\def\pgfsys@fill{%
+  \ifpgfsys@@clipnext%
+    \ifpgfsys@eorule%
+      \pgfsysprotocol@literal{gsave pgffc pgfeofill grestore eoclip newpath}%
+    \else%
+      \pgfsysprotocol@literal{gsave pgffc pgffill grestore clip newpath}%
+    \fi%
+    \pgfsys@@clipnextfalse%
+  \else%
+    \ifpgf@fillcolor%
+      \ifpgfsys@eorule%
+        \pgfsysprotocol@literal{gsave pgffc pgfeofill grestore newpath}%
+      \else%
+        \pgfsysprotocol@literal{gsave pgffc pgffill grestore newpath}%
+      \fi%
+    \else%
+      \ifpgfsys@eorule%
+        \pgfsysprotocol@literal{pgfeofill}%
+      \else%
+        \pgfsysprotocol@literal{pgffill}%
+      \fi%
+    \fi%
+ \fi}
+\def\pgfsys@fillstroke{%
+  \ifpgfsys@eorule%
+    \pgfsysprotocol@literal{gsave pgffc pgfeofill grestore gsave pgfsc pgfstr grestore}%
+  \else%
+    \pgfsysprotocol@literal{gsave pgffc pgffill grestore gsave pgfsc pgfstr grestore}%
+  \fi%
+  \ifpgfsys@@clipnext%
+    \ifpgfsys@eorule%
+      \pgfsysprotocol@literal{eoclip}%
+    \else%
+      \pgfsysprotocol@literal{clip}%
+    \fi%
+    \pgfsys@@clipnextfalse%
+  \fi%
+  \pgfsysprotocol@literal{newpath}}
+\def\pgfsys@clipnext{\pgfsys@@clipnexttrue}
+\def\pgfsys@discardpath{%
+  \ifpgfsys@@clipnext%
+    \ifpgfsys@eorule%
+      \pgfsysprotocol@literal{eoclip}%
+    \else%
+      \pgfsysprotocol@literal{clip}%
+    \fi%
+    \pgfsys@@clipnextfalse%
+  \fi%
+  \pgfsysprotocol@literal{newpath}}
+
+% Transformation:
+\def\pgfsys@transformshift#1#2{\pgf@sys@bp{#1}\pgf@sys@bp{#2}\pgfsysprotocol@literal{translate}}
+\def\pgfsys@transformxyscale#1#2{\pgfsysprotocol@literal{#1 #2 scale}}
+\def\pgfsys@transformcm#1#2#3#4#5#6{%
+  \pgfsysprotocol@literalbuffered{[#1 #2 #3 #4}\pgf@sys@bp{#5}\pgf@sys@bp{#6}\pgfsysprotocol@literal{] concat}}
+
+% Scopes
+\def\pgfsys@beginscope{\pgfsysprotocol@literal{save}}
+\def\pgfsys@endscope{\pgfsysprotocol@literal{restore}}
+
+% Graphics state
+\def\pgfsys@setdash#1#2{%
+  \pgfsysprotocol@literalbuffered{[}%
+  \@for\pgf@sys@temp:={#1}\do{\pgf@sys@bp{\pgf@sys@temp}}%
+  \pgfsysprotocol@literalbuffered{]}%
+  \pgf@sys@bp{#2}\pgfsysprotocol@literal{setdash}}
+\def\pgfsys@setlinewidth#1{\pgf@sys@bp{#1}\pgfsysprotocol@literal{pgfw}}
+\def\pgfsys@setmiterlimit#1{\pgfsysprotocol@literal{#1 setmiterlimit}}
+\def\pgfsys@buttcap{\pgfsysprotocol@literal{0 setlinecap}}
+\def\pgfsys@roundcap{\pgfsysprotocol@literal{1 setlinecap}}
+\def\pgfsys@rectcap{\pgfsysprotocol@literal{2 setlinecap}}
+\def\pgfsys@miterjoin{\pgfsysprotocol@literal{0 setlinejoin}}
+\def\pgfsys@roundjoin{\pgfsysprotocol@literal{1 setlinejoin}}
+\def\pgfsys@beveljoin{\pgfsysprotocol@literal{2 setlinejoin}}
+\def\pgfsys@color@rgb@stroke#1#2#3{\pgfsysprotocol@literal{/pgfsc{#1 #2 #3 setrgbcolor}def}\pgf@strokecolortrue}
+\def\pgfsys@color@rgb@fill#1#2#3{\pgfsysprotocol@literal{/pgffc{#1 #2 #3 setrgbcolor}def}\pgf@fillcolortrue}
+\def\pgfsys@color@rgb#1#2#3{\pgfsys@color@reset\pgfsysprotocol@literal{#1 #2 #3 setrgbcolor}}
+\def\pgfsys@color@cmyk@stroke#1#2#3#4{\pgfsysprotocol@literal{/pgfsc{#1 #2 #3 #4 setcmykcolor}def}\pgf@strokecolortrue}
+\def\pgfsys@color@cmyk@fill#1#2#3#4{\pgfsysprotocol@literal{/pgffc{#1 #2 #3 #4 setcmykcolor}def}\pgf@fillcolortrue}
+\def\pgfsys@color@cmyk#1#2#3#4{\pgfsys@color@reset\pgfsysprotocol@literal{#1 #2 #3 #4 setcmykcolor}}
+\def\pgfsys@color@cmy@stroke#1#2#3{\pgfsysprotocol@literal{/pgfsc{#1 #2 #3 0 setcmykcolor}def}\pgf@strokecolortrue}
+\def\pgfsys@color@cmy@fill#1#2#3{\pgfsysprotocol@literal{/pgffc{#1 #2 #3 0 setcmykcolor}def}\pgf@fillcolortrue}
+\def\pgfsys@color@cmy#1#2#3{\pgfsys@color@reset\pgfsysprotocol@literal{#1 #2 #3 0 setcmykcolor}}
+\def\pgfsys@color@gray@stroke#1{\pgfsysprotocol@literal{/pgfsc{#1 setgray}def}\pgf@strokecolortrue}
+\def\pgfsys@color@gray@fill#1{\pgfsysprotocol@literal{/pgffc{#1 setgray}def}\pgf@fillcolortrue}
+\def\pgfsys@color@gray#1{\pgfsys@color@reset\pgfsysprotocol@literal{#1 setgray}}
+\def\pgfsysps@color@resetnow{\pgfsysprotocol@literal{/pgfsc{}def/pgffc{}def}\pgf@strokecolorfalse\pgf@fillcolorfalse}%
+\def\pgfsys@color@reset{%
+  \ifpgfsys@color@reset@inorder%
+    \ifpgf@strokecolor%
+      \pgfsysps@color@resetnow%
+    \else%
+      \ifpgf@fillcolor%
+        \pgfsysps@color@resetnow%
+      \fi%
+    \fi%
+  \else%
+    \pgfsysps@color@resetnow%
+  \fi}
+
+
+% Opacity
+
+\def\pgfsys@fill@opacity#1{%
+  \pgfsysprotocol@literal{#1 .pgfsetfillopacityalpha}
+}
+\def\pgfsys@stroke@opacity#1{%
+  \pgfsysprotocol@literal{#1 .pgfsetstrokeopacityalpha}
+}
+
+\endinput
+
+%%% Local Variables: 
+%%% mode: latex
+%%% End: 
diff --git a/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-common-svg.def b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-common-svg.def
new file mode 100644
index 00000000000..19a98a6bf60
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-common-svg.def
@@ -0,0 +1,353 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/systemlayer/pgfsys-common-svg.def,v 1.12 2005/10/06 13:16:09 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+
+% Driver commands for svg
+
+
+% Helping functions:
+\let\pgf@sys@svgpath=\@empty
+\def\pgf@sys@svgnum#1{%
+  {%
+    \pgf@x=#1\relax%
+    \edef\temp{\expandafter\Pgf@geT\the\pgf@x\space}%
+    \toks@\expandafter\expandafter\expandafter{\expandafter\pgf@sys@svgpath\temp}%
+    \xdef\pgf@sys@svgpath{\the\toks@}%
+  }%
+}
+\def\pgf@sys@addtosvgpath#1{\g@addto@macro\pgf@sys@svgpath{#1\space}}
+\def\pgf@sys@flushsvgpath{\pgfsysprotocol@literal{\pgf@sys@svgpath}\global\let\pgf@sys@svgpath=\@empty}
+\def\pgf@sys@svg@gs#1{%
+  {\pgfsysprotocol@literal{<g #1>\Hnewline }}\global\advance\pgf@sys@svg@scopecount by1\relax%
+}
+\newcount\pgf@sys@svg@objectcount
+\let\Hnewline=\@empty
+
+% Path construction:
+\def\pgfsys@lineto#1#2{\pgf@sys@addtosvgpath{L }\pgf@sys@svgnum{#1}\pgf@sys@svgnum{#2}}
+\def\pgfsys@moveto#1#2{\pgf@sys@addtosvgpath{M }\pgf@sys@svgnum{#1}\pgf@sys@svgnum{#2}}
+\def\pgfsys@curveto#1#2#3#4#5#6{%
+  \pgf@sys@addtosvgpath{C }%
+  \pgf@sys@svgnum{#1}\pgf@sys@svgnum{#2}%
+  \pgf@sys@svgnum{#3}\pgf@sys@svgnum{#4}%
+  \pgf@sys@svgnum{#5}\pgf@sys@svgnum{#6}}
+\def\pgfsys@rect#1#2#3#4{%
+  \pgfsys@moveto{#1}{#2}%
+  \pgf@sys@addtosvgpath{h }\pgf@sys@svgnum{#3}%
+  \pgf@sys@addtosvgpath{v }\pgf@sys@svgnum{#4}%
+  \pgf@sys@addtosvgpath{h }{\pgf@x=#3\pgf@x=-\pgf@x\pgf@sys@svgnum{\pgf@x}}%
+  \pgfsys@closepath}
+\def\pgfsys@closepath{\pgf@sys@addtosvgpath{Z}}
+
+% Path usage:
+\newif\ifpgf@sys@svg@clipnext
+\def\pgf@sys@svg@possiblyclippedpath#1{%
+  \ifpgf@sys@svg@clipnext%
+    \global\advance\pgf@sys@svg@objectcount by1\relax%
+    \pgfsysprotocol@literal{<clipPath id="pgfcp\the\pgf@sys@svg@objectcount">
+      <path id="pgfpath\the\pgf@sys@svg@objectcount" d="}%
+    \pgf@sys@flushsvgpath%
+    \pgfsysprotocol@literal{"/>\Hnewline  </clipPath>\Hnewline }
+    \pgfsysprotocol@literal{<use xlink:href="\#pgfpath\the\pgf@sys@svg@objectcount" #1/>\Hnewline }%
+    \pgf@sys@svg@gs{clip-path="url(\#pgfcp\the\pgf@sys@svg@objectcount)"}
+    \pgf@sys@svg@clipnextfalse%
+  \else%
+    \pgfsysprotocol@literal{<path d="}%
+    \pgf@sys@flushsvgpath%
+    \pgfsysprotocol@literal{" #1/>\Hnewline }
+  \fi%
+}
+\def\pgfsys@stroke{\pgf@sys@svg@possiblyclippedpath{style="fill:none"}}
+\def\pgfsys@fill{\pgf@sys@svg@possiblyclippedpath{style="stroke:none"}}
+\def\pgfsys@fillstroke{\pgf@sys@svg@possiblyclippedpath{}}
+\def\pgfsys@clipnext{\pgf@sys@svg@clipnexttrue}
+\def\pgfsys@discardpath{%
+  \ifpgf@sys@svg@clipnext%
+    \global\advance\pgf@sys@svg@objectcount by1\relax%
+    \pgfsysprotocol@literal{<clipPath id="pgfcp\the\pgf@sys@svg@objectcount">
+      <path d="}%
+    \pgf@sys@flushsvgpath%
+    \pgfsysprotocol@literal{"/>\Hnewline </clipPath>\Hnewline }
+    \pgf@sys@svg@gs{clip-path="url(\#pgfcp\the\pgf@sys@svg@objectcount)"}
+    \pgf@sys@svg@clipnextfalse%
+  \else%
+    \global\let\pgf@sys@svgpath=\@empty
+  \fi}
+
+% Fill rules:
+\def\pgfsys@eoruletrue{\pgf@sys@svg@gs{fill-rule="evenodd"}}
+\def\pgfsys@eorulefalse{\pgf@sys@svg@gs{fill-rule="nonzero"}}
+
+% Transparency:
+\def\pgfsys@stroke@opacity#1{\pgf@sys@svg@gs{stroke-opacity="#1"}}
+\def\pgfsys@fill@opacity#1{\pgf@sys@svg@gs{fill-opacity="#1"}}
+
+% Transformation:
+\def\pgfsys@transformcm#1#2#3#4#5#6{%
+  {\pgf@x=#5\pgf@y=#6%
+  \pgf@sys@svg@gs{transform="matrix(#1,#2,#3,#4,\pgf@sys@tonumber{\pgf@x},\pgf@sys@tonumber{\pgf@y})"}}}
+
+% Scopes
+\newcount\pgf@sys@svg@scopecount
+\def\pgfsys@beginscope{%
+  \edef\pgf@sys@svg@thescopecount{\the\pgf@sys@svg@scopecount}%
+  \begingroup%
+    \pgf@sys@svg@scopecount=1\relax%
+    \pgfsysprotocol@literal{<g>\Hnewline }%
+  }
+\def\pgfsys@endscope{%
+    \loop%
+      \pgfsysprotocol@literal{</g>\Hnewline }%
+      \advance\pgf@sys@svg@scopecount by-1\relax%
+    \ifnum\pgf@sys@svg@scopecount>0\relax%
+    \repeat%  
+  \endgroup%
+  \global\pgf@sys@svg@scopecount=\pgf@sys@svg@thescopecount\relax%  
+}
+
+% Graphics state
+\def\pgfsys@setdash#1#2{%
+  \edef\pgf@test@dashpattern{#1}%
+  \ifx\pgf@test@dashpattern\@empty%
+    \pgf@sys@svg@gs{stroke-dasharray="none" stroke-dashoffset="#2"}%
+  \else%
+    \pgf@sys@svg@gs{stroke-dasharray="#1" stroke-dashoffset="#2"}%
+  \fi}
+\def\pgfsys@setlinewidth#1{\pgf@sys@svg@gs{stroke-width="#1"}}
+\def\pgfsys@setmiterlimit#1{\pgf@sys@svg@gs{stroke-miterlimit="#1"}}
+\def\pgfsys@buttcap{\pgf@sys@svg@gs{stroke-linecap="butt"}}
+\def\pgfsys@roundcap{\pgf@sys@svg@gs{stroke-linecap="round"}}
+\def\pgfsys@rectcap{\pgf@sys@svg@gs{stroke-linecap="square"}}
+\def\pgfsys@miterjoin{\pgf@sys@svg@gs{stroke-linejoin="miter"}}
+\def\pgfsys@roundjoin{\pgf@sys@svg@gs{stroke-linejoin="round"}}
+\def\pgfsys@beveljoin{\pgf@sys@svg@gs{stroke-linejoin="bevel"}}
+
+
+%
+% Color management
+% 
+
+\def\XC@mcolor{\ifpgfpicture\pgfsetcolor{.}\fi}
+
+\def\pgf@sys@svg@color@rgb#1,#2,#3\relax{%
+ {%
+    \pgf@xa=#1pt%
+    \pgf@xa=100\pgf@xa%
+    \pgf@xb=#2pt%
+    \pgf@xb=100\pgf@xb%
+    \pgf@xc=#3pt%
+    \pgf@xc=100\pgf@xc%
+    \xdef\pgf@sys@svg@prepared{rgb(\pgf@sys@tonumber\pgf@xa\%,\pgf@sys@tonumber\pgf@xb\%,\pgf@sys@tonumber\pgf@xc\%)}%
+  }%
+}
+\def\pgf@sys@svg@color@cmy#1,#2,#3\relax{%
+  {%
+    \pgf@xa=1pt%
+    \advance\pgf@xa by-#1pt%
+    \pgf@xa=100\pgf@xa%
+    \pgf@xb=1pt%
+    \advance\pgf@xb by-#2pt%
+    \pgf@xb=100\pgf@xb%
+    \pgf@xc=1pt%
+    \advance\pgf@xc by-#3pt%
+    \pgf@xc=100\pgf@xc%
+    \xdef\pgf@sys@svg@prepared{rgb(\pgf@sys@tonumber\pgf@xa\%,\pgf@sys@tonumber\pgf@xb\%,\pgf@sys@tonumber\pgf@xc\%)}%
+  }%
+}
+\def\pgf@sys@svg@color@cmyk#1,#2,#3,#4\relax{%
+  {%
+    \pgf@xa=1pt%
+    \advance\pgf@xa by-#4pt%
+    \pgf@xa=#1\pgf@xa%
+    \advance\pgf@xa by#4pt%
+    \advance\pgf@xa by-1pt%
+    \pgf@xa=-100\pgf@xa%
+    \pgf@xb=1pt%
+    \advance\pgf@xb by-#4pt%
+    \pgf@xb=#2\pgf@xb%
+    \advance\pgf@xb by#4pt%
+    \advance\pgf@xb by-1pt%
+    \pgf@xb=-100\pgf@xb%
+    \pgf@xc=1pt%
+    \advance\pgf@xc by-#4pt%
+    \pgf@xc=#3\pgf@xc%
+    \advance\pgf@xc by#4pt%
+    \advance\pgf@xc by-1pt%
+    \pgf@xc=-100\pgf@xc%
+    \xdef\pgf@sys@svg@prepared{rgb(\pgf@sys@tonumber\pgf@xa\%,\pgf@sys@tonumber\pgf@xb\%,\pgf@sys@tonumber\pgf@xc\%)}%
+  }%
+}
+\def\pgf@sys@svg@color@gray#1\relax{%
+ {%
+    \pgf@xa=#1pt%
+    \pgf@xa=100\pgf@xa%
+    \xdef\pgf@sys@svg@prepared{rgb(\pgf@sys@tonumber\pgf@xa\%,\pgf@sys@tonumber\pgf@xa\%,\pgf@sys@tonumber\pgf@xa\%)}%
+  }%
+}
+
+\def\pgfsys@color@rgb@stroke#1#2#3{%
+  \pgf@sys@svg@color@rgb#1,#2,#3\relax%
+  \pgf@sys@svg@gs{stroke="\pgf@sys@svg@prepared"}}
+\def\pgfsys@color@rgb@fill#1#2#3{%
+  \pgf@sys@svg@color@rgb#1,#2,#3\relax%
+  \pgf@sys@svg@gs{fill="\pgf@sys@svg@prepared"}}
+\def\pgfsys@color@cmyk@stroke#1#2#3#4{%
+  \pgf@sys@svg@color@cmyk#1,#2,#3,#4\relax%
+  \pgf@sys@svg@gs{stroke="\pgf@sys@svg@prepared"}}
+\def\pgfsys@color@cmyk@fill#1#2#3#4{%
+  \pgf@sys@svg@color@cmyk#1,#2,#3,#4\relax%
+  \pgf@sys@svg@gs{fill="\pgf@sys@svg@prepared"}}
+\def\pgfsys@color@cmy@stroke#1#2#3{%
+  \pgf@sys@svg@color@cmy#1,#2,#3\relax%
+  \pgf@sys@svg@gs{stroke="\pgf@sys@svg@prepared"}}
+\def\pgfsys@color@cmy@fill#1#2#3{%
+  \pgf@sys@svg@color@cmy#1,#2,#3\relax%
+  \pgf@sys@svg@gs{fill="\pgf@sys@svg@prepared"}}
+\def\pgfsys@color@gray@stroke#1{%
+  \pgf@sys@svg@color@gray#1\relax%
+  \pgf@sys@svg@gs{stroke="\pgf@sys@svg@prepared"}}
+\def\pgfsys@color@gray@fill#1{%
+  \pgf@sys@svg@color@gray#1\relax%
+  \pgf@sys@svg@gs{fill="\pgf@sys@svg@prepared"}}
+
+
+% Shadings:
+\def\pgf@sys@svg@shading@stops{%
+  % Step 1: Compute 1/\pgf@sys@shading@end@pos
+  \pgf@x=\pgf@sys@shading@end@pos\relax%
+  \c@pgf@counta=\pgf@x\relax%
+  \divide\c@pgf@counta by4096\relax%
+  % Step 2: Insert stops.
+  \expandafter\pgf@sys@svg@shading@dostops\pgf@sys@shading@ranges%
+    % dummy for end:
+    {{\pgf@sys@shading@end@pos}{\pgf@sys@shading@end@pos}{\pgf@sys@shading@end@rgb}{\pgf@sys@shading@end@rgb}}%
+    {}% end
+}
+\def\pgf@sys@svg@shading@dostops#1{%
+  \edef\pgf@test{#1}%
+  \ifx\pgf@test\@empty%
+  \else%
+    \expandafter\pgf@sys@svg@shading@dostop\pgf@test%
+    \expandafter\pgf@sys@svg@shading@dostops%
+  \fi%
+}
+\def\pgf@sys@svg@shading@dostop#1#2#3#4{%
+  % #1 start pos
+  % #2 end pos
+  % #3 start rgb
+  % #4 end rgb
+  \pgf@sys@svg@addtostops{<stop offset="}%
+  \pgf@x=#1%
+  \pgf@x=16\pgf@x%
+  \divide\pgf@x by \c@pgf@counta\relax%
+  \pgf@sys@svg@addtostops{\pgf@sys@tonumber\pgf@x" stop-color="}%
+  \pgf@sys@svg@shading@dorgb#3%
+  \pgf@sys@svg@addtostops{"/>\noexpand\Hnewline}%
+}
+\def\pgf@sys@svg@shading@dorgb#1#2#3{%
+  \pgf@sys@svg@color@rgb#1,#2,#3\relax%
+  \pgf@sys@svg@addtostops{\pgf@sys@svg@prepared}%
+}
+
+\let\pgf@sys@svg@thestops=\@empty
+\def\pgf@sys@svg@addtostops#1{%
+  \edef\pgf@temp{#1}%
+  \expandafter\expandafter\expandafter\def
+  \expandafter\expandafter\expandafter\pgf@sys@svg@thestops
+  \expandafter\expandafter\expandafter{\expandafter\pgf@sys@svg@thestops\expandafter\space\pgf@temp}%
+}
+
+
+\def\pgfsys@horishading#1#2#3{%
+  {%
+    \pgf@parsefunc{#3}%
+    \global\advance\pgf@sys@svg@objectcount by1\relax%
+    \pgf@sys@svg@addtostops{<linearGradient id="pgfsh\the\pgf@sys@svg@objectcount">\noexpand\Hnewline}
+    \pgf@sys@svg@shading@stops%
+    \pgf@sys@svg@addtostops{</linearGradient>\noexpand\Hnewline}%
+    \pgf@process{\pgfpoint{\pgf@sys@shading@end@pos}{#2}}%
+    \expandafter\xdef\csname @pgfshading#1!\endcsname{%
+      \def\noexpand\pgf@sys@svg@sh@defs{\noexpand\pgfsysprotocol@literal{\pgf@sys@svg@thestops}}%
+      \def\noexpand\pgf@sys@svg@sh{\noexpand\pgfsysprotocol@literal{<rect
+        width="\the\pgf@x"
+        height="\the\pgf@y"
+        style="fill:url(\noexpand\#pgfsh\the\pgf@sys@svg@objectcount);
+          stroke:none"/>\noexpand\Hnewline}}%
+      \def\noexpand\pgf@sys@svg@pos{\noexpand\pgfpoint{\the\pgf@x}{\the\pgf@y}}%
+    }%
+  }%
+}
+
+
+\def\pgfsys@vertshading#1#2#3{%
+  {%
+    \pgf@parsefunc{#3}%
+    \global\advance\pgf@sys@svg@objectcount by1\relax%
+    \pgf@sys@svg@addtostops{<linearGradient
+      id="pgfsh\the\pgf@sys@svg@objectcount"
+      gradientTransform="rotate(90)">\noexpand\Hnewline}
+    \pgf@sys@svg@shading@stops%
+    \pgf@sys@svg@addtostops{</linearGradient>\noexpand\Hnewline}%
+    \pgf@process{\pgfpoint{\pgf@sys@shading@end@pos}{#2}}%
+    \expandafter\xdef\csname @pgfshading#1!\endcsname{%
+      \def\noexpand\pgf@sys@svg@sh@defs{\noexpand\pgfsysprotocol@literal{\pgf@sys@svg@thestops}}%
+      \def\noexpand\pgf@sys@svg@sh{\noexpand\pgfsysprotocol@literal{<rect
+        width="\the\pgf@y"
+        height="\the\pgf@x"
+        style="fill:url(\noexpand\#pgfsh\the\pgf@sys@svg@objectcount);
+          stroke:none"/>\noexpand\Hnewline}}%
+      \def\noexpand\pgf@sys@svg@pos{\noexpand\pgfpoint{\the\pgf@y}{\the\pgf@x}}%
+    }%
+  }%
+}
+
+\def\pgfsys@radialshading#1#2#3{%
+  {%
+    \pgf@parsefunc{#3}%
+    \pgf@x=\pgf@sys@shading@end@pos\relax%
+    \c@pgf@counta=\pgf@x\relax%
+    \divide\c@pgf@counta by4096\relax%
+    \global\advance\pgf@sys@svg@objectcount by1\relax%
+    \pgf@process{#2}%
+    % Divide by 2\pgf@sys@shading@end@pos%
+    \pgf@x=8\pgf@x%
+    \divide\pgf@x by \c@pgf@counta\relax%
+    \pgf@y=8\pgf@y%
+    \divide\pgf@y by \c@pgf@counta\relax%
+    \advance\pgf@x by.5pt%
+    \advance\pgf@y by.5pt%
+    \pgf@sys@svg@addtostops{<radialGradient
+      id="pgfsh\the\pgf@sys@svg@objectcount"
+      fx="\pgf@sys@tonumber\pgf@x"
+      fy="\pgf@sys@tonumber\pgf@y"
+      >\noexpand\Hnewline}
+    \pgf@sys@svg@shading@stops%
+    \pgf@sys@svg@addtostops{</radialGradient>\noexpand\Hnewline}%
+    \pgf@xa=\pgf@sys@shading@end@pos%
+    \pgf@xb=2\pgf@xa%    
+    \expandafter\xdef\csname @pgfshading#1!\endcsname{%
+      \def\noexpand\pgf@sys@svg@sh@defs{\noexpand\pgfsysprotocol@literal{\pgf@sys@svg@thestops}}%
+      \def\noexpand\pgf@sys@svg@sh{\noexpand\pgfsysprotocol@literal{<circle
+        cx="\the\pgf@xa"
+        cy="\the\pgf@xa"
+        r="\the\pgf@xa"
+        style="fill:url(\noexpand\#pgfsh\the\pgf@sys@svg@objectcount);
+          stroke:none"/>\noexpand\Hnewline}}%
+      \def\noexpand\pgf@sys@svg@pos{\noexpand\pgfpoint{\the\pgf@xb}{\the\pgf@xb}}%
+    }%
+  }%
+}
+
+
+\endinput
+
+
+%%% Local Variables: 
+%%% mode: latex
+%%% End: 
diff --git a/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-dvipdfm.def b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-dvipdfm.def
new file mode 100644
index 00000000000..224197f9b51
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-dvipdfm.def
@@ -0,0 +1,131 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/systemlayer/pgfsys-dvipdfm.def,v 1.7 2005/09/30 07:14:03 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+
+% Driver commands for dvipdfm
+
+%
+% Load common pdf commands:
+%
+\input pgfsys-common-pdf.def
+
+%
+% dvipdfm-specific stuff:
+%
+\def\pgfsys@invoke#1{\special{pdf: content Q #1 q}}
+
+\def\pgfsys@hbox#1{%
+  \special{pdf: content Q q -1 0 0 -1 0 0 cm q}%
+  \special{pdf: content -1 0 0 -1 0 0 cm q}% translate to original coordinate system
+  \special{pdf: content 0 0 m W n q}% clip next stuff
+  {\hbox to 0pt{\pgf@selectfontorig.\hss}}% enforce font change
+  \special{pdf: content Q}% end of font change enforcement.
+    \wd#1=0pt%
+    \ht#1=0pt%
+    \dp#1=0pt%
+    \box#1
+  \special{pdf: content Q n Q}%
+}
+\def\pgfsys@beginpicture{%
+  \pgfsys@invoke{1 0 0 1 2000 2000 cm}%
+  \hbox to 0pt{\selectfont.\hss}%
+  \pgfsys@invoke{1 0 0 1 -2000 -2000 cm}%
+  \special{pdf: content q}}
+\def\pgfsys@endpicture{%
+  \special{pdf: content n Q}%
+}
+\def\pgfsys@beginpurepicture{\special{pdf: content q}}
+
+
+\def\pgf@sys@pdf@addtopageresources#1{%
+  \ifx\pgf@sys@pdf@obj\@undefined%
+    \global\let\pgf@sys@pdf@obj=\relax%
+    \special{pdf: obj @pgfopacities << >>}%
+  \fi%
+  \special{pdf: put @pgfopacities << #1 >>}%
+  \special{pdf: put @resources << /ExtGState @pgfopacities >>}%
+}
+\def\pgf@sys@pdf@readdtopageresources#1{%
+  \special{pdf: put @resources << /ExtGState @pgfopacities >>}%
+}
+
+\def\pgfsys@imagesuffixlist{pdf:jpg:jpeg:png}
+\def\pgfsys@horishading#1#2#3{%
+  {%
+    \pgf@parsefunc{#3}%
+    \pgf@process{\pgfpoint{\pgf@max}{#2}}%
+    \edef\@temp{\noexpand\pgf@sys@atbeginpage{\special{pdf: beginxobj @pgfshade#1 width \the\pgf@max\space height \the\pgf@y}}}\@temp%
+    \edef\@temp{\noexpand\pgf@sys@atbeginpage{\special{pdf: put @resources <<
+      /Shading << /Sh << /ShadingType 2
+      /ColorSpace /DeviceRGB
+      /Domain [\pgf@pdfparseddomain]
+      /Coords [\pgf@doma\space0 \pgf@domb\space0]
+      /Function \pgf@pdfparsedfunction
+      /Extend [false false] >> >> >>}}}\@temp%
+      \pgf@sys@atbeginpage{\special{pdf: content /Sh sh}%
+      \special{pdf: endxobj}}%
+    \expandafter\xdef\csname @pgfshading#1!\endcsname{%
+      \hbox to\the\pgf@max{\vbox to#2{\vfil\special{pdf: usexobj @pgfshade#1}}\hfil}}% 
+  }%
+}
+\def\pgfsys@vertshading#1#2#3{%
+  {%
+    \pgf@parsefunc{#3}%
+    \pgf@process{\pgfpoint{\pgf@max}{#2}}%
+    \edef\@temp{\noexpand\pgf@sys@atbeginpage{\special{pdf: beginxobj @pgfshade#1 width \the\pgf@y\space height \the\pgf@max\space}}}\@temp%
+    \edef\@temp{\noexpand\pgf@sys@atbeginpage{\special{pdf: put @resources <<
+      /Shading << /Sh << /ShadingType 2
+      /ColorSpace /DeviceRGB
+      /Domain [\pgf@pdfparseddomain]
+      /Coords [0 \pgf@doma\space0 \pgf@domb]
+      /Function \pgf@pdfparsedfunction
+      /Extend [false false] >> >> >>}}}\@temp%
+      \pgf@sys@atbeginpage{\special{pdf: content /Sh sh}%
+      \special{pdf: endxobj}}%
+    \expandafter\xdef\csname @pgfshading#1!\endcsname{%
+      \hbox to#2{\vbox to\the\pgf@max{\vfil\special{pdf: usexobj @pgfshade#1}}\hfil}}% 
+  }%
+}
+\def\pgfsys@radialshading#1#2#3{%
+  {%
+    \pgf@parsefunc{#3}%
+    \pgf@process{#2}%
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \pgf@process{\pgfpoint{\pgf@max}{\pgf@max}}%
+    \advance\pgf@xa by \pgf@x\relax%
+    \advance\pgf@ya by \pgf@y\relax%
+    \@tempdima=2\pgf@max\relax%
+    \edef\@temp{\noexpand\pgf@sys@atbeginpage{\special{pdf: beginxobj @pgfshade#1 width \the\@tempdima\space height \the\@tempdima}}}\@temp%
+    \edef\@temp{\noexpand\pgf@sys@atbeginpage{\special{pdf: put @resources <<
+      /Shading << /Sh << /ShadingType 3
+      /ColorSpace /DeviceRGB
+      /Domain [\pgf@pdfparseddomain]
+      /Coords [\pgf@sys@tonumber{\pgf@xa} \pgf@sys@tonumber{\pgf@ya} \pgf@doma\space \pgf@sys@tonumber{\pgf@x} \pgf@sys@tonumber{\pgf@y} \pgf@domb]
+      /Function \pgf@pdfparsedfunction
+      /Extend [true false] >> >> >>}}}\@temp%
+      \pgf@sys@atbeginpage{\special{pdf: content /Sh sh}%
+      \special{pdf: endxobj}}%
+    \expandafter\xdef\csname @pgfshading#1!\endcsname{%
+      \hbox to\the\@tempdima{\vbox to\the\@tempdima{\vfil\special{pdf: usexobj @pgfshade#1}}\hfil}}% 
+  }%
+}%
+
+
+\def\pgf@sys@atbeginpage#1{\AtBeginDvi{#1}}
+\AtBeginDocument{% hyperref hack
+  \providecommand\HyPL@EveryPage{}
+  \def\@begindvi{\unvbox\@begindvibox\HyPL@EveryPage}
+}
+
+\endinput
+
+%%% Local Variables: 
+%%% mode: latex
+%%% End: 
diff --git a/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-dvips.def b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-dvips.def
new file mode 100644
index 00000000000..e6ef83b5ade
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-dvips.def
@@ -0,0 +1,244 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/systemlayer/pgfsys-dvips.def,v 1.9 2005/10/18 18:03:38 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+
+% Driver commands for dvips
+
+%
+% Load common postscript commands:
+%
+\input pgfsys-common-postscript.def
+
+
+%
+% dvips-specific stuff:
+%
+\def\pgfsys@invoke#1{\special{ps:: #1}}
+\def\pgfsys@outerinvoke#1{\special{ps: #1}}
+
+\def\pgfsys@beginpicture{\special{ps: }\special{ps::[begin]}\pgfsys@invoke{pgfo}}
+\def\pgfsys@endpicture{\pgfsys@invoke{pgfc}\special{ps::[end]}}
+\def\pgfsys@hbox#1{%
+  \pgfsys@invoke{pgfs}%
+    \special{ps::[end]}%
+      \wd#1=0pt%
+      \ht#1=0pt%
+      \dp#1=0pt%
+      \box#1
+    \special{ps::[begin]}%
+  \pgfsys@invoke{pgfr}%
+}
+\def\pgfsys@begininvisible{%
+  \special{ps::[begin]}%
+  \pgfsys@invoke{gsave nulldevice}%
+  \special{ps::[end]}}
+\def\pgfsys@endinvisible{%
+  \special{ps::[begin]}%
+  \pgfsys@invoke{grestore}%
+  \special{ps::[end]}%
+}
+\def\pgfsys@color@unstacked#1{\special{ps: \XC@usecolor{#1}}}
+\newcount\pgf@objectcount
+\def\pgfsys@defobject#1#2#3#4{%
+  \global\advance\pgf@objectcount by 1
+  \expandafter\xdef\csname#1\endcsname{\the\pgf@objectcount}
+  \pgfsysprotocol@getcurrentprotocol\pgfsys@temp%
+  {%
+    \pgfsysprotocol@setcurrentprotocol\@empty%
+    \pgfsysprotocol@bufferedtrue%
+    #4%
+    \pgfsysprotocol@getcurrentprotocol\pgfsys@@temp%
+    \special{! /pgf\csname#1\endcsname{gsave exec \pgfsys@@temp\space grestore} bind def}%
+  }%
+  \pgfsysprotocol@setcurrentprotocol\pgfsys@temp%
+}
+\def\pgfsys@useobject#1#2{%
+  \pgfsysprotocol@getcurrentprotocol\pgfsys@temp%
+  {%
+    \pgfsysprotocol@setcurrentprotocol\@empty%
+    \pgfsysprotocol@bufferedfalse%
+    #2%
+    \pgfsysprotocol@invokecurrentprotocol%
+    \pgfsys@invoke{pgf\csname#1\endcsname}%
+  }%
+  \pgfsysprotocol@setcurrentprotocol\pgfsys@temp}
+\def\pgfsys@imagesuffixlist{epsi:eps:ps}
+\def\pgfsys@horishading#1#2#3{%
+  {%
+    \pgf@parsefunc{#3}%
+    \setlength\pgf@x{#2}%
+    \pgf@xa=\pgf@x%
+    \pgf@sys@bp@correct{\pgf@x}%
+    \pgf@y=\pgf@max%
+    \pgf@sys@bp@correct{\pgf@y}%
+    \expandafter\xdef\csname @pgfshading#1!\endcsname{\hbox to \the\pgf@max{%
+        \noexpand\vrule width0pt height\the\pgf@xa%
+        \noexpand\pgfsys@beginpurepicture%
+          \noexpand\pgfsys@rect{0pt}{0pt}{\the\pgf@y}{\the\pgf@x}%
+          \noexpand\pgfsys@clipnext%
+          \noexpand\pgfsys@discardpath%
+          \noexpand\pgfsys@invoke{\pgf@domb\space \pgf@sys@tonumber{\pgf@x} pgfH \pgf@psfuncs\space pop}%
+          \hss%
+        \noexpand\pgfsys@endpurepicture}}%
+  }%
+}
+\def\pgfsys@vertshading#1#2#3{%
+  {%
+    \pgf@parsefunc{#3}%
+    \setlength\pgf@x{#2}%
+    \pgf@xa=\pgf@x%
+    \pgf@sys@bp@correct{\pgf@x}%
+    \pgf@y=\pgf@max%
+    \pgf@sys@bp@correct{\pgf@y}%
+    \expandafter\xdef\csname @pgfshading#1!\endcsname{\hbox to\the\pgf@xa{%
+        \noexpand\vrule width0pt height\the\pgf@max%
+        \noexpand\pgfsys@beginpurepicture%
+          \noexpand\pgfsys@rect{0pt}{0pt}{\the\pgf@x}{\the\pgf@y}%
+          \noexpand\pgfsys@clipnext%
+          \noexpand\pgfsys@discardpath%
+          \noexpand\pgfsys@invoke{\pgf@domb\space \pgf@sys@tonumber{\pgf@x} pgfV \pgf@psfuncs\space pop}%
+          \hss%
+        \noexpand\pgfsys@endpurepicture}}%
+  }%
+}
+\def\pgfsys@radialshading#1#2#3{%
+  {%
+    \pgf@parsefunc{#3}%
+    \pgf@process{#2}%
+    \pgf@xa=2\pgf@max%
+    \pgf@sys@bp@correct{\pgf@max}%
+    \advance\pgf@x by \pgf@max%
+    \advance\pgf@y by \pgf@max%
+    \expandafter\xdef\csname @pgfshading#1!\endcsname{\hbox to \the\pgf@xa{%
+        \noexpand\vrule width0pt height\the\pgf@xa%
+        \noexpand\pgfsys@beginpurepicture%
+          \noexpand\pgfsys@invoke{%
+            \pgf@domb\space \pgf@sys@tonumber{\pgf@y} \pgf@sys@tonumber{\pgf@x} \pgf@sys@tonumber{\pgf@max} pgfR1
+            \pgf@psfuncs\space \pgf@firstcolor\space \pgf@doma\space pgfR2}%
+          \hss%
+        \noexpand\pgfsys@endpurepicture}}%
+  }%
+}
+
+\AtBeginDocument{
+  % Always present specials.
+  \special{!
+    /pgfsc{}B% stroke color is empty by default
+    /pgffc{}B% fill color is empty by default
+    /pgfstr{stroke}B%
+    /pgffill{fill}B%
+    /pgfeofill{eofill}B%
+    /pgfe{a dup 0 rlineto exch 0 exch rlineto neg 0 rlineto closepath}B% rectangle
+    /pgfw{setlinewidth}B% setlinewidth
+    /pgfs{save pgfpd 72 Resolution div 72 VResolution div neg scale 
+      magscale{1 DVImag div dup scale}if 
+      pgfx neg pgfy neg translate pgffoa .setopacityalpha}B% save
+    /pgfr{pgfsd restore}B %restore
+    userdict begin%
+    /pgfo{pgfsd /pgfx currentpoint /pgfy exch def def @beginspecial}B %open
+    /pgfc{newpath @endspecial pgfpd}B %close
+    /pgfsd{globaldict /pgfdelta /delta where {pop delta} {0} ifelse put}B% save delta
+    /pgfpd{/delta globaldict /pgfdelta get def}B % put delta
+    /.setopacityalpha where {pop} {/.setopacityalpha{pop}def} ifelse % install .setopacityalpha 
+    /.pgfsetfillopacityalpha{/pgffoa exch def
+      /pgffill{gsave pgffoa .setopacityalpha fill 1 .setopacityalpha newpath fill grestore}B
+      /pgfeofill{gsave pgffoa .setopacityalpha eofill1 .setopacityalpha newpath eofill grestore}B}B
+    /.pgfsetstrokeopacityalpha{/pgfsoa exch def
+      /pgfstr{gsave pgfsoa .setopacityalpha stroke grestore}B}B
+    /pgffoa 1 def
+    /pgfsoa 1 def
+    end
+    }
+  
+  % Parameters to horizontal pre axishade: \pgf@domb x
+  \special{! /pgfH{%
+      /pgfheight exch def 0.75 setlinewidth [] 0 setdash
+      /pgfshade {pgfA} def /pgfdir { dup 0 moveto
+        dup 5 index lineto } bind def} B}%
+  
+  % Parameters to vertical pre axishade: \pgf@domb x
+  \special{! /pgfV{%
+      /pgfheight exch def 0.75 setlinewidth [] 0 setdash
+      /pgfshade {pgfA} def /pgfdir { dup 0 exch moveto dup 5 index
+        exch lineto } bind def} B}%
+  
+  % Parameters to axishade: end x, start x, r-, g-, b- of first color, r-, g-, b- of second color
+  % Stack afterwards: end x
+  \special{! /pgfA{
+      /pgfdiff 8 index round cvi 8 index round cvi sub 2 mul 1 add def
+      2 index 6 index sub pgfdiff div % put red-step on stack
+      2 index 6 index sub pgfdiff div % put green-step on stack
+      2 index 6 index sub pgfdiff div % put green-step on stack
+      pgfheight 9 index 9 index 9 index 14 index
+      pgfdiff {
+        3 index 3 index 3 index setrgbcolor % Set color
+        pgfdir
+        stroke
+        4 -1 roll 7 index add % red += incred
+        4 -1 roll 6 index add % green += incgreen
+        4 -1 roll 5 index add % blue += incblue
+        4 -1 roll .5 sub % x += 0.5
+      } repeat      
+      mark 15 1 roll cleartomark exch pop % leave only start x on stack
+    }B }
+
+  % Parameters to radialshade pre: \pgf@domb y x max
+  \special{! /pgfR1{
+      newpath dup dup dup 0 360 arc clip newpath
+      dup /pgfendx exch def
+      /pgfendy exch def
+      0.875 setlinewidth
+      [] 0 setdash
+      /pgfshade {pgfR} def
+      /pgfstartx exch def
+      /pgfstarty exch def
+      /pgfdiffx pgfendx pgfstartx sub def
+      /pgfdiffy pgfendy pgfstarty sub def
+      dup /pgfdomb exch def
+    }B }
+
+  % Parameters to radialshade post: \pgf@firstcolor \pgf@doma
+  \special{! /pgfR2{ 
+      newpath 0.5 add pgfcircx pgfcircy 3 2 roll 0 360 arc
+      setrgbcolor fill pop}B }%
+
+  % Parameters to radialshade: end x, start x, r-, g-, b- of first color, r-, g-, b- of second color
+  % Stack afterwards: end x
+  \special{! /pgfR{
+      /pgfdiff 8 index round cvi 8 index round cvi sub 4 mul 1 add def
+      /pgfcircx pgfstartx 9 index pgfdiffx pgfdomb div mul add def
+      /pgfcircy pgfstarty 9 index pgfdiffy pgfdomb div mul add def
+      /pgfcircxe pgfstartx 8 index pgfdiffx pgfdomb div mul add def
+      /pgfcircye pgfstarty 8 index pgfdiffy pgfdomb div mul add def
+      /pgfxstep pgfcircxe pgfcircx sub pgfdiff div def
+      /pgfystep pgfcircye pgfcircy sub pgfdiff div def
+      2 index 6 index sub pgfdiff div % put red-step on stack
+      2 index 6 index sub pgfdiff div % put green-step on stack
+      2 index 6 index sub pgfdiff div % put green-step on stack
+      8 index 8 index 8 index 13 index
+      pgfdiff {
+        3 index 3 index 3 index setrgbcolor % Set color
+        pgfcircx pgfcircy 2 index 0 360 arc closepath
+        stroke
+        4 -1 roll 6 index add % red += incred
+        4 -1 roll 5 index add % green += incgreen
+        4 -1 roll 4 index add % blue += incblue
+        4 -1 roll .25 sub % x += 0.25
+        /pgfcircx pgfcircx pgfxstep add def
+        /pgfcircy pgfcircy pgfystep add def
+      } repeat      
+      mark 14 1 roll cleartomark exch pop % leave only start x on stack
+    }B}
+}
+
+\endinput
+
+%%% Local Variables: 
+%%% mode: latex
+%%% End: 
diff --git a/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-pdftex.def b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-pdftex.def
new file mode 100644
index 00000000000..79697fbb9f6
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-pdftex.def
@@ -0,0 +1,169 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/systemlayer/pgfsys-pdftex.def,v 1.4 2005/10/06 13:16:09 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+
+% Driver commands for pdf
+
+%
+% Load common pdf commands:
+%
+\input pgfsys-common-pdf.def
+
+%
+% pdftex-specific stuff:
+%
+\def\pgfsys@invoke#1{\pdfliteral{#1}}
+
+\def\pgfsys@hboxsynced#1{%
+  {%
+    \pgfsys@beginscope%
+    \setbox\pgf@hbox=\hbox{%
+      \hskip\pgf@pt@x%
+      \raise\pgf@pt@y\hbox{%
+        \pgf@pt@x=0pt%
+        \pgf@pt@y=0pt%
+        \pgflowlevelsynccm% 
+        \pgfsys@hbox#1}%
+      \hss%
+    }%
+    \wd\pgf@hbox=0pt%
+    \ht\pgf@hbox=0pt%
+    \dp\pgf@hbox=0pt%
+    \box\pgf@hbox%
+    \pgfsys@endscope%
+  }%
+}
+
+\let\pgf@sys@pgf@resource@list=\@empty%
+\def\pgf@sys@pdf@addtopageresources#1{%
+  \xdef\pgf@sys@pgf@resource@list{\pgf@sys@pgf@resource@list\space#1}%
+  \edef\pgf@temp{{<<\pgf@sys@pgf@resource@list>>}}%
+  \expandafter\immediate\expandafter\pdfobj\pgf@temp%
+  \edef\pgf@temp{{/ExtGState \the\pdflastobj\space 0 R}}
+  \expandafter\global\expandafter\pdfpageresources\pgf@temp%
+}
+
+
+\def\pgfsys@imagesuffixlist{pdf:jpg:jpeg:png}
+\def\pgfsys@defineimage{% width, height, page number
+  \ifx\pgf@imagewidth\@empty\else\edef\pgf@imagewidth{ width \pgf@imagewidth }\fi%
+  \ifx\pgf@imageheight\@empty\else\edef\pgf@imageheight{ height \pgf@imageheight }\fi%
+  \ifx\pgf@imagepage\@empty\else\edef\pgf@imagepage{ page \pgf@imagepage }\fi%
+  \ifx\pdfximage\@undefined% old version of pdflatex
+    \ifx\pgf@imagepage\@empty\else%
+      \PackageWarning{pgf}{Page selection not supported. Ignoring
+        page selection}%
+    \fi%
+    \setbox\@tempboxa=\hbox{%
+      \pdfimage \pgf@imageheight \pgf@imagewidth {\pgf@filename}}%
+    \pdfform\@tempboxa%
+    \edef\pgf@image{\noexpand\pdfrefform\the\pdflastform}%
+  \else% new version
+    {\pdfximage \pgf@imageheight \pgf@imagewidth attr
+      {\pgf@imageinterpolate\space\pgf@imagemask} \pgf@imagepage
+      {\pgf@filename}}%
+    \edef\pgf@image{\noexpand\pdfrefximage\the\pdflastximage}%
+  \fi
+}%
+\def\pgfsys@definemask{%
+  \ifx\pgf@maskmatte\@empty%
+  \else%
+    \edef\pgf@maskmatte{/Matte [\pgf@maskmatte]}%
+  \fi%
+  \edef\pgf@attr{{\pgf@maskmatte\space /Decode [1 0]}}%
+  \immediate\pdfximage attr \pgf@attr {\pgf@filename}%
+  \edef\pgf@mask{\the\pdflastximage}%
+}
+\def\pgfsys@horishading#1#2#3{%
+  {%
+    \pgf@parsefunc{#3}%
+    \setbox\@tempboxa=\hbox to\pgf@max{\vbox to#2{\vfil\pdfliteral{/Sh sh}}\hfil}%
+    \pgf@process{\pgfpoint{\pgf@max}{#2}}%
+    \pdfxform resources {%
+      /Shading << /Sh << /ShadingType 2
+      /ColorSpace /DeviceRGB
+      /Domain [\pgf@pdfparseddomain]
+      /Coords [\pgf@doma\space0 \pgf@domb\space0]
+      /Function \pgf@pdfparsedfunction
+      /Extend [false false] >> >>}\@tempboxa%
+    \expandafter\xdef\csname @pgfshading#1!\endcsname{\leavevmode\noexpand\pdfrefxform\the\pdflastxform}% 
+  }%
+}
+\def\pgfsys@vertshading#1#2#3{%
+  {%
+    \pgf@parsefunc{#3}%
+    \setbox\@tempboxa=\hbox to#2{\vbox to\pgf@max{\vfil\pdfliteral{/Sh sh}}\hfil}%
+    \pgf@process{\pgfpoint{#2}{\pgf@max}}%
+    \pdfxform resources {%
+      /Shading << /Sh << /ShadingType 2
+      /ColorSpace /DeviceRGB
+      /Domain [\pgf@pdfparseddomain]
+      /Coords [0 \pgf@doma\space0 \pgf@domb]
+      /Function \pgf@pdfparsedfunction
+      /Extend [false false] >> >>}\@tempboxa%
+    \expandafter\xdef\csname @pgfshading#1!\endcsname{\leavevmode\noexpand\pdfrefxform\the\pdflastxform}%
+  }%
+}
+\def\pgfsys@radialshading#1#2#3{%
+  {%
+    \pgf@parsefunc{#3}%
+    \setbox\@tempboxa=\hbox to2\pgf@max{\vbox to2\pgf@max{\vfil\pdfliteral{/Sh sh}}\hfil}%
+    \pgf@process{#2}%
+    \pgf@xa=\pgf@x%
+    \pgf@ya=\pgf@y%
+    \pgf@process{\pgfpoint{\pgf@max}{\pgf@max}}%
+    \advance\pgf@xa by \pgf@x%
+    \advance\pgf@ya by \pgf@y%
+    \pdfxform resources {%
+      /Shading << /Sh << /ShadingType 3
+      /ColorSpace /DeviceRGB
+      /Domain [\pgf@pdfparseddomain]
+      /Coords [\pgf@sys@tonumber{\pgf@xa} \pgf@sys@tonumber{\pgf@ya} \pgf@doma\space \pgf@sys@tonumber{\pgf@x} \pgf@sys@tonumber{\pgf@y} \pgf@domb]
+      /Function \pgf@pdfparsedfunction
+      /Extend [true false] >> >>}\@tempboxa%
+    \expandafter\xdef\csname @pgfshading#1!\endcsname{\leavevmode\noexpand\pdfrefxform\the\pdflastxform}%
+  }%
+}%
+
+  % XForm version, crashes ghostview.
+  %\def\pgfsys@defobject#1#2#3#4{%
+  %  \pgf@process{#2}
+  %  \setbox\pgfobjectbox\hbox{\raise-\pgf@y\hbox{\hskip-\pgf@x\relax#4}}
+  %  \pgf@process{#3}
+  %  \pgf@xa=\pgf@x
+  %  \pgf@ya=\pgf@y
+  %  \pgf@process{#2}
+  %  \advance\pgf@xa by-\pgf@x
+  %  \advance\pgf@ya by-\pgf@y  
+  %  \wd\pgfobjectbox=\pgf@xa
+  %  \dp\pgfobjectbox=0pt
+  %  \ht\pgfobjectbox=\pgf@ya
+  %  \pdfxform\pgfobjectbox
+  %  \expandafter\xdef\csname#1\endcsname{\the\pdflastxform}
+  %  \expandafter\xdef\csname pgf@trans#1\endcsname
+  %  {{\pgfget x}{\pgfget y}}}
+  %\def\pgfsys@useobject#1#2{%
+  %  \setbox\pgfobjectbox\hbox{\pdfrefxform \csname#1\endcsname}%
+  %  \dp\pgfobjectbox=0pt%
+  %  \ht\pgfobjectbox=0pt%
+  %  \wd\pgfobjectbox=0pt%
+  %  \pgfsys@discardpath%
+  %  \pgfsys@beginscope%
+  %  #2%
+  %  \edef\pgf@temp{{1}{0}{0}{1}\csname pgf@trans#1\endcsname}%
+  %  \expandafter\pgfsys@transform\pgf@temp%
+  %  \box\pgfobjectbox%
+  %  \pgfsys@endscope}
+
+\endinput
+
+
+%%% Local Variables: 
+%%% mode: latex
+%%% End: 
diff --git a/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-tex4ht.def b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-tex4ht.def
new file mode 100644
index 00000000000..f7864d34070
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys-tex4ht.def
@@ -0,0 +1,165 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/systemlayer/pgfsys-tex4ht.def,v 1.8 2005/08/13 18:59:56 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+\RequirePackage{xcolor}
+
+
+% Driver commands for tex4ht
+
+%
+% Load common pdf commands:
+%
+\input pgfsys-common-svg.def
+
+%
+% tex4ht-specific stuff:
+%
+\def\pgfsys@invoke#1{\HCode{#1}}
+
+\newcount\pgf@sys@svg@picnum
+
+
+\def\pgfsys@beginpicture{%
+  \Configure{[]}{$}{$}
+  \Configure{()}{$}{$}
+  \Configure{$$}{}{}{}%$$
+  \Configure{$}{}{}{}%$
+  \Configure{SUB}{\HCode{<tspan baseline-shift="sub">}}{\HCode{</tspan>}}
+  \Configure{SUP}{\HCode{<tspan baseline-shift="sub">}}{\HCode{</tspan>}}
+  \Configure{SUBSUP}{}{}{}
+  \Configure{htf} 
+    {0}{+}{<tspan font-family="}
+    {\%s}{" font-size="\%s}{}{}
+    {">}{</tspan>}
+}
+\def\pgfsys@endpicture{%
+  % undo:
+  \Configure{htf}{0}{+}{<span\Hnewline
+     class="}{\%s}{-\%s}{x-x-\%d}{}{">}{</span>}
+}
+ 
+\def\pgfsys@typesetpicturebox#1{%
+  \global\advance\pgf@sys@svg@picnum by 1\relax%
+  % Ok, compute width/height
+  \pgf@xa=\pgf@picminx%
+  \pgf@ya=\pgf@picminy%
+  \pgf@xb=\pgf@picmaxx%
+  \pgf@yb=\pgf@picmaxy%
+  \pgf@x=\pgf@xb%
+  \advance\pgf@x by-\pgf@xa%
+  \pgf@y=\pgf@yb%
+  \advance\pgf@y by-\pgf@ya%
+  \ifdim\pgf@y<1pt%
+    \pgf@y=1pt%
+  \fi%
+  \HCode{<object data="\jobname-\the\pgf@sys@svg@picnum.svg"
+    width="\the\pgf@x" height="\the\pgf@y"
+    type="image/svg+xml"><p>SVG-Viewer needed.</p></object>}%
+  \special{t4ht>\jobname-\the\pgf@sys@svg@picnum.svg}%
+  \pgfsys@invoke{<svg width="\the\pgf@x" height="\the\pgf@y" viewBox="}%
+  \pgf@sys@pt{\pgf@xa}\pgf@sys@pt{\pgf@ya}\pgf@sys@pt{\pgf@x}\pgf@sys@pt{\pgf@y}%
+  \pgfsysprotocol@flushcurrentprotocol%
+  \pgf@ya=-\pgf@ya%
+  \pgfsys@invoke{">\Hnewline  <g transform="translate(0,\the\pgf@yb) scale(1,-1)
+    translate(0,\the\pgf@ya)">\Hnewline }%
+  \setlength\pgf@x{\pgf@shift@baseline}%
+  \advance\pgf@x by-\pgf@picminy\relax%
+  \advance\pgf@picmaxy by-\pgf@picminy\relax% maxy is now the height
+  \advance\pgf@picmaxx by-\pgf@picminx\relax% maxx is now the width
+  \setbox#1=\hbox{\hskip-\pgf@picminx\lower\pgf@picminy\box#1}%
+  \ht#1=\pgf@picmaxy%
+  \wd#1=\pgf@picmaxx%
+  \dp#1=0pt%
+  \leavevmode\raise-\pgf@x\box#1%
+  \pgfsys@invoke{</g>\Hnewline </svg>\Hnewline }%
+  \special{t4ht<\jobname-\the\pgf@sys@svg@picnum.svg}%
+}
+
+\def\pgfsys@hbox#1{%
+  \pgf@x=.5\wd#1%
+  \ifx\tikz@textcolor\relax%
+  \else%
+    \ifx\tikz@textcolor\@empty%
+      \pgfsetfillcolor{.}%
+    \else%
+      \pgfsetfillcolor{\tikz@textcolor}%
+    \fi%
+  \fi% tweak for TikZ
+  \HCode{<text
+    style="stroke:none"
+    transform="scale(1,-1) translate(\the\pgf@x,0pt)"
+    text-anchor="middle"
+  }%
+  \ifx\f@size\@empty%
+  \else%
+    \HCode{ font-size="\f@size"}%
+  \fi%  
+  \HCode{>\Hnewline }%
+    \wd#1=0pt%
+    \ht#1=0pt%
+    \dp#1=0pt%
+    \box#1
+  \HCode{</text>\Hnewline }%
+}
+
+\def\pgfsys@outerinvoke{\ifpgfpicture\expandafter\pgfsys@invoke\else\expandafter\@gobble\fi}
+
+
+\def\pgfsys@shadingoutsidepgfpicture#1{%
+  \begingroup%
+    #1%
+    \setbox\pgfpic=\hbox to0pt{%
+      \pgfsys@beginpicture%
+        \pgfsys@beginscope%
+          \pgf@sys@svg@sh@defs%
+          \pgf@sys@svg@sh%
+        \pgfsys@endscope%
+      \pgfsys@endpicture%
+      \hss%  
+    }%
+    \pgf@process{\pgf@sys@svg@pos}%
+    \pgf@picminx=0pt%
+    \pgf@picminy=0pt%
+    \pgf@picmaxx=\pgf@x%
+    \pgf@picmaxy=\pgf@y%
+    \pgf@baseline=0pt%
+    \pgfsys@typesetpicturebox\pgfpic%
+  \endgroup%
+}
+
+\def\pgfsys@shadinginsidepgfpicture#1{%
+  #1%
+  \pgf@sys@svg@sh@defs% hmmm....
+  \pgf@process{\pgf@sys@svg@pos}
+  \pgf@xa=-.5\pgf@x%
+  \pgf@ya=-.5\pgf@y%
+  \pgfsysprotocol@literal{<g transform="translate(\pgf@sys@tonumber{\pgf@xa},\pgf@sys@tonumber{\pgf@ya})">\Hnewline}%
+  \pgf@sys@svg@sh%
+  \pgfsysprotocol@literal{</g>\Hnewline}%
+}
+
+
+
+% Protect against color.4ht evil meddling with xcolor:
+\let\pgf@xcolor@declaredcolor=\@declaredcolor
+\let\pgf@xcolor@undeclaredcolor=\@undeclaredcolor
+
+\AtBeginDocument{
+  \let\pgf@texht@declaredcolor=\@declaredcolor
+  \let\pgf@texht@undeclaredcolor=\@undeclaredcolor
+  \def\@declaredcolor{\ifpgfpicture\expandafter\pgf@xcolor@declaredcolor\else\expandafter\pgf@texht@declaredcolor\fi}
+  \def\@undeclaredcolor{\ifpgfpicture\expandafter\pgf@xcolor@undeclaredcolor\else\expandafter\pgf@texht@undeclaredcolor\fi}
+  \ConfigureEnv{pgfpicture}{}{}{}{}
+}
+
+\endinput
+
+
+%%% Local Variables: 
+%%% mode: latex
+%%% End: 
diff --git a/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys.code.tex b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys.code.tex
new file mode 100644
index 00000000000..22b257f7448
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsys.code.tex
@@ -0,0 +1,763 @@
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/systemlayer/pgfsys.code.tex,v 1.9 2005/10/18 18:03:38 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+
+%
+% The following conversion functions are used to convert from TeX
+% dimensions to postscript/pdf points.
+% 
+{\catcode`\p=12\catcode`\t=12\gdef\Pgf@geT#1pt{#1}}
+
+\def\pgf@sys@tonumber#1{\expandafter\Pgf@geT\the#1}
+
+\def\pgf@sys@bp@correct#1{#1=0.99627#1}
+
+\def\pgf@sys@bp#1{%
+  {%
+    \pgf@x=#1\relax%
+    \pgf@x=0.99627\pgf@x%
+    \edef\temp{\expandafter\Pgf@geT\the\pgf@x\space}%
+    \toks@\expandafter\expandafter\expandafter{\expandafter\pgfsysprotocol@currentprotocol\temp}%
+    \xdef\pgfsysprotocol@currentprotocol{\the\toks@}%
+  }%
+}
+\def\pgf@sys@pt#1{%
+  {%
+    \pgf@x=#1\relax%
+    \edef\temp{\expandafter\Pgf@geT\the\pgf@x\space}%
+    \toks@\expandafter\expandafter\expandafter{\expandafter\pgfsysprotocol@currentprotocol\temp}%
+    \xdef\pgfsysprotocol@currentprotocol{\the\toks@}%
+  }%
+}
+
+% internal dimensions that are always present when pgsys is loaded.
+\newdimen\pgf@x
+\newdimen\pgf@y
+\newdimen\pgf@xa
+\newdimen\pgf@ya
+\newdimen\pgf@xb
+\newdimen\pgf@yb
+\newdimen\pgf@xc
+\newdimen\pgf@yc
+
+
+% The following \if decides, whether even-odd filling and clipping is
+% to be used or normal the non-zero winding number rule. See the
+% pdf-documentation for details on what these rules are.
+
+\newif\ifpgfsys@eorule
+
+
+
+% In the following dummy definitions of the pgf system commands are
+% given. The individual drivers must overwrite these definitions,
+% preferably all of them. If some system command is used that has not
+% been overwritten, the command fails with a warning.
+%
+% In some cases, some pgf system commands are just shorthands for a
+% series of more complicated commands. In this case, a default
+% implementation is given in this file, but a driver may choose to
+% overwrite this default implementation with a more effecient
+% version. For example, a closestroke is the same as a closepath
+% followed by a stroking, but in pdf there is a special shorthand for
+% this. So, the pdf driver overwrites \pgfsys@closestroke, while the
+% postscript driver does not.
+%
+% The commands for which default implementations are available are
+% given at the end.
+
+\def\pgf@sys@fail#1{%
+  \expandafter\ifx\csname pgf@sys@fail@#1\endcsname\@empty%
+  \else%
+    \expandafter\global\expandafter\let\csname pgf@sys@fail@#1\endcsname=\@empty%
+    \PackageWarning{pgf}{%
+      Your graphic driver \pgfsysdriver\space does not supported #1. This warning is given only once}%
+  \fi%
+}
+
+
+
+\def\pgfsys@invoke{\pgf@sys@fail{invoking specials}}
+% This command is used whenever some literal text needs to be inserted
+% into the resulting .pdf, .ps, or .dvi file. Note that most
+% \pgfsys@xxxx commands will not directly call this command, but,
+% rather, use the protocolling mechanism to record their literal
+% text. It is then left to the discretion of the protocolling
+% mechansim to insert the literal text at some appropriate, later
+% time. 
+%
+% This command should only be called when \pgfsys@beginpicture has
+% been called previously and when the picture has not been suspended
+% using \pgfsys@beginhbox.
+
+
+\def\pgfsys@outerinvoke{\pgfsys@invoke}
+% This command can be used to insert protocolled graphic commands
+% outside any picture. This is extremely dangerous, but sometimes
+% useful. By default, this command does the same as inside pictures. 
+
+
+
+%
+%
+% Path construction commands
+%
+%
+
+\def\pgfsys@moveto#1#2{\pgf@sys@fail{path constructions}}
+% This command is used to start a path at a specific point (#1bp,#2bp)
+% or to move the current point of the current path to (#1bp,#2bp)
+% without drawing anything upon stroking (the current path is
+% `interrupted'). 
+%
+% Here (and in the following) the coordinates are in TeX's big points
+% (bp), unless the coordinate system has been scaled. A big point is
+% 1/72 inches. Note that TeX's point pt is 1/72.27 inches.
+%
+% Example:
+%
+% \pgfsys@moveto{10}{10}
+% \pgfsys@lineto{0}{0}
+% \pgfsys@stroke
+%
+% This will draw a line from (10bp,10bp) to the origin of the picture.
+
+\def\pgfsys@lineto#1#2{\pgf@sys@fail{path constructions}}
+% Continue the current path to (#1bp,#2bp) with a line.
+
+\def\pgfsys@curveto#1#2#3#4#5#6{\pgf@sys@fail{path constructions}}
+% Continue the current path with a bezier curver to (#5bp,#6bp). The
+% control points of the curve are at (#1bp,#2bp) and (#3bp,#4bp).
+
+\def\pgfsys@rect#1#2#3#4{\pgf@sys@fail{path constructions}}
+% Append a rectangle to the current path whose lower left corner is at
+% (#1bp,#2bp) and whose width/height is given by (#3bp,#4bp).
+%
+% This command can be `mapped back' to moveto and lineto commands, but
+% it is included since pdf has a special, quick version of this command.
+
+\def\pgfsys@closepath{\pgf@sys@fail{path constructions}}
+% Close the current path. This results in joining the current point of
+% the path with the point specified by the last moveto
+% operation. Typically, this is preferable over using lineto to the
+% last point specified by a moveto, since the line starting at this
+% point and the line ending at this point will be smoothly joined by
+% closepath. 
+%
+% Example:
+%
+% \pgfsys@moveto{0}{0}
+% \pgfsys@lineto{10}{10}
+% \pgfsys@lineto{0}{10}
+% \pgfsys@closepath
+% \pgfsys@stroke
+%
+% versus
+%
+% \pgfsys@moveto{0}{0}
+% \pgfsys@lineto{10}{10}
+% \pgfsys@lineto{0}{10}
+% \pgfsys@lineto{0}{0}
+% \pgfsys@stroke
+% 
+% The difference between the above will be that in the second triangle
+% the corner at the origin will be wrong; it will just be the overlay
+% of two lines going in different directions, not a sharp pointed
+% corner.
+
+
+
+
+
+
+%
+%
+% Stroking and filling commands
+%
+%
+
+\def\pgfsys@stroke{\pgf@sys@fail{path usage}}
+% Stroke the current path (as if it were drawn with a pen). A number
+% of so-called graphic state parameters influence this, which can be
+% set in different ways:
+%
+% - linewidth
+%   The `thickness' of the line. A width of 0 is the thinnest width
+%   renderable on the device. On a high-resolution printer this may
+%   become invisible and should be avoided. A good choice is 0.4pt,
+%   which is the default.
+%
+% - stroke color
+%   This special color is used for stroking. If it is not set, the
+%   current color is used.
+%
+% - cap
+%   The cap describes how the endings of lines a drawn. A round cap
+%   adds a little half circle to these endings. A butt cap ends the
+%   lines exactly at the end (or start) point without anything
+%   added. A rectangular cap ends the lines like the butt cap, but the
+%   lines protrude over the endpoint by the line thickness. (See also
+%   the pdf or postscript manual). If the path has been closed, no cap
+%   is drawn.
+%
+% - join
+%   This describes how a bend (a join) in a path is rendered. A round
+%   join draws bends using small arcs. A bevel join just draws the two
+%   lines and then fills the join minimally so that it becomes
+%   convex. A miter join extends the lines so that they form a single
+%   sharp corner, but only up to a certain miter limit. (See the pdf
+%   or postscript manual once more).
+%
+% - dash
+%   The line may be dashed according to a dashing pattern.
+%
+% - clipping area
+%   If a clipping area is established, only those parts of the path
+%   that are inside the clipping area will be drawn.
+%
+% In addition to stroking a path, the path may also be used for
+% clipping after it has been stroked. This will happen if the
+% \pgfsys@clipnext is used prior to this command, see there for
+% details.
+
+\def\pgfsys@fill{\pgf@sys@fail{path usage}}
+% This command fills the area surrounded by the current path. If the
+% path has not yet been closed, it is closed prior to filling. The
+% path itself is not stroked. For self-intersecting paths or paths
+% consisting of multiple parts, the nonzero winding number rule is
+% used to determine whether a point is inside or outside the
+% path, except if \ifpgfsys@eorule holds -- in which case the even-odd
+% rule should be used. (See the pdf or postscript manual for details.) 
+%
+% The following graphic state parameters influence the filling:
+%
+% - fill color
+%   If the fill color is not especially set, the current color is
+%   used. 
+%
+% - clipping area
+%   If a clipping area is established, only those parts of the filling
+%   area that are inside the clipping area will be drawn.
+%
+% In addition to filling the path, the path will also be used for
+% clipping if \pgfsys@clipnext is used prior to this command.
+
+\def\pgfsys@fillstroke{\pgf@sys@fail{path usage}}
+% First, the path is filled, then the path is stroked. If the fill and
+% stroke colors are the same (or if they are not specified and the
+% current color is used), this yields almost the same as a
+% \pgfsys@fill. However, due to the line thickness of the stroked
+% path, the fillstroked area will be slightly larger.
+%
+% In addition to stroking and filling the path, the path will also be
+% used for clipping if \pgfsys@clipnext is used prior to this command.
+
+\def\pgfsys@clipnext{\pgf@sys@fail{path usage}}
+% This command should be issued after a path has been constructed, but
+% before it has been stroked and/or filled or discarded. When the
+% command is used, the next stroking/filling/discarding command will
+% first be executed normally. Then, afterwards, the just-used path
+% will be used for subsequent clipping. If there has already been a
+% clipping region, this region is intersected with the new clipping
+% path (the clipping cannot get bigger). The nonzero winding number
+% rule is used to determine whether a point is inside or outside the
+% clipping area or the even-odd rule, depending on whether
+% \ifpgfsys@eorule holds.
+
+\def\pgfsys@discardpath{\pgf@sys@fail{path usage}}
+% Normally, this command should `throw away' the current path.
+% However, after \pgfsys@clipnext has been called, the current path
+% should subsequently be used for clipping. See \pgfsys@clipnext for
+% details. 
+
+
+
+
+
+%
+%
+% Stroking options
+%
+%
+\def\pgfsys@setlinewidth#1{\pgf@sys@fail{setting the line width}}
+% Sets the width of lines, when stroked, to #1bp.
+
+\def\pgfsys@buttcap{\pgf@sys@fail{setting the line cap}}
+% Sets the cap to a butt cap. See \pgfsys@stroke.
+
+\def\pgfsys@roundcap{\pgf@sys@fail{setting the line cap}}
+% Sets the cap to a round cap. See \pgfsys@stroke.
+
+\def\pgfsys@rectcap{\pgf@sys@fail{setting the line cap}}
+% Sets the cap to a rectangular cap. See \pgfsys@stroke.
+
+\def\pgfsys@miterjoin{\pgf@sys@fail{setting the line join}}
+% Sets the join to a miter join. See \pgfsys@stroke.
+
+\def\pgfsys@setmiterlimit#1{\pgf@sys@fail{setting the line cap}}
+% Sets the miter limit of lines to #1. See the pdf or postscript
+% documentation.
+
+\def\pgfsys@roundjoin{\pgf@sys@fail{setting the line cap}}
+% Sets the join to a round join. See \pgfsys@stroke.
+
+\def\pgfsys@beveljoin{\pgf@sys@fail{setting the line cap}}
+% Sets the join to a bevel join. See \pgfsys@stroke.
+
+\def\pgfsys@setdash#1#2{\pgf@sys@fail{setting the dashing pattern}}
+% Sets the dashing patter. #1 should be a list of lengths given in big
+% points (bp) separated by spaces. #2 should be a single value given
+% in bp.
+%
+% The list of values in #1 is used to determine the lengths of the
+% `on' phases of the dashing and of the `off' phases. For example, if
+% #1 is `3 4', then the dashing pattern is `3bp on followed by 4bp
+% off, followed by 3bp on, followed by 4bp off, and so on'. A pattern
+% of `.5 4 3 1.5' means `.5bp on, 4bp off, 3bp on, 1.5bp off, .5bp on,
+% ...'. If the number of entries is odd, the last one is used twice,
+% so `3' means `3bp on, 3bp off, 3bp on, 3bp off,...'. An empty list
+% means `always on'.
+%
+% The second argument determines the `phase' of the pattern. For
+% example, for a pattern of `3 4' and a phase of `1', the pattern
+% would start: `2bp on, 4bp off, 3bp on, 4bp off, 3bp on, 4bp off...'.
+
+
+
+
+%
+%
+% Opacity stuff
+%
+%
+
+\def\pgfsys@stroke@opacity#1{\pgf@sys@fail{opacity}}
+% Sets the opacity of stroking operations. 1 means fully opaque, 0
+% means fully transparent.
+
+\def\pgfsys@fill@opacity#1{\pgf@sys@fail{opacity}}
+% Sets the opacity of filling operations. 1 means fully opaque, 0
+% means fully transparent.
+
+
+
+
+%
+%
+% Color stuff
+%
+%
+
+\def\pgfsys@color@rgb@stroke#1#2#3{\pgf@sys@fail{color}}
+% Sets the color used for stroking operations to the given rgb tuple
+% (numbers between 0 and 1). 
+%
+% Example: Make stroked text dark red: \pgfsys@color@rgb@stroke{0.5}{0}{0}
+%
+% The special stroking color is only used if the stroking color has
+% been set since the last \color command. Thus, each \color command
+% should reset both the stroking and filling colors.
+
+\def\pgfsys@color@rgb@fill#1#2#3{\pgf@sys@fail{color}}
+% Sets the color used for filling operations to the given rgb tuple
+% (numbers between 0 and 1). This color may be different from the
+% stroking color.
+
+\def\pgfsys@color@rgb#1#2#3{\pgfsys@color@rgb@stroke{#1}{#2}{#3}\pgfsys@color@rgb@fill{#1}{#2}{#3}}
+% Sets the color used for filling and stroking operations. This is a
+% ``low-level'' version of the \color command. It is currently only
+% used by the plain tex version to support colors.
+
+\def\pgfsys@color@cmyk@stroke#1#2#3#4{\pgf@sys@fail{color}}
+% Sets the color used for stroking operations to the given cymk tuple
+% (numbers between 0 and 1). 
+
+\def\pgfsys@color@cmyk@fill#1#2#3#4{\pgf@sys@fail{color}}
+% Sets the color used for filling operations to the given cymk tuple
+% (numbers between 0 and 1). 
+
+\def\pgfsys@color@cmyk#1#2#3#4{\pgfsys@color@cmyk@stroke{#1}{#2}{#3}{#4}\pgfsys@color@cmyk@fill{#1}{#2}{#3}{#4}}
+% Sets the color used for filling and stroking operations.
+
+\def\pgfsys@color@cmy@stroke#1#2#3{\pgf@sys@fail{color}}
+% Sets the color used for stroking operations to the given cym tuple
+% (numbers between 0 and 1). 
+
+\def\pgfsys@color@cmy@fill#1#2#3{\pgf@sys@fail{color}}
+% Sets the color used for filling operations to the given cym tuple
+% (numbers between 0 and 1). 
+
+\def\pgfsys@color@cmy#1#2#3{\pgfsys@color@cmy@stroke{#1}{#2}{#3}\pgfsys@color@cmy@fill{#1}{#2}{#3}}
+% Sets the color used for filling and stroking operations.
+
+\def\pgfsys@color@gray@stroke#1{\pgf@sys@fail{color}}
+% Sets the color used for stroking operations to the given gray level 
+% (number between 0 and 1). 
+
+\def\pgfsys@color@gray@fill#1{\pgf@sys@fail{color}}
+% Sets the color used for filling operations to the given gray level 
+% (number between 0 and 1). 
+
+\def\pgfsys@color@gray#1{\pgfsys@color@gray@stroke{#1}\pgfsys@color@gray@fill{#1}}
+% Sets the color used for filling and stroking operations.
+
+\newif\ifpgfsys@color@reset@inorder
+% This if decides whether the color resetting of the
+% \pgfsys@color@reset command may assume that all color commands are
+% given ``in order.'' This means that this command will not be called,
+% say, at the beginning of a box that is later inserted at a point
+% where a fill color was actively set. This may allow the command to
+% produce more compact code when it ``knows'' that no special fill or
+% stroke color has been set.
+\pgfsys@color@reset@inordertrue
+
+
+\def\pgfsys@color@reset{}
+% This command will be called when the \color command is used. It
+% should purge any internal settings of stroking and filling
+% color. After this call, till the next use of a command like
+% \pgfsys@color@rgb@fill, the current color installed by the \color
+% command should be used.
+
+\def\pgfsys@color@unstacked#1{}
+% This slightly obscure command causes the color stack to be
+% tricked. When called, this command should set the current color to
+% #1 without causing any change in the color stack. 
+
+
+
+%
+%
+% Coordinate system transformations
+%
+%
+
+\def\pgfsys@transformcm#1#2#3#4#5#6{\pgf@sys@fail{transformations}}
+% Perform a concatenation of the low-level current transformation
+% matrix with the matrix given by the values #1 to #6. The
+% transformation matrix is a transformation on a homogeneous
+% 2D-coordinate system. See the pdf or postscript manual for details. 
+
+
+
+
+%
+%
+% Graphic state saving and restoring.
+%
+%
+
+\def\pgfsys@beginscope{\pgf@sys@fail{scoping}}
+% Saves the current graphic state on a graphic state stack. All
+% changes to the graphic state parameters mentioned for \pgfsys@stroke
+% and \pgfsys@fill will be local to the current graphic state and will
+% the old values will be restored after endscope is used.
+%
+% WARNING: pdf and postscript differ with respect to the question of
+% whether the current path is part of the graphic state or not. For
+% this reason, you should never use this command unless the path is
+% currently empty. For example, it might be a good idea to use
+% discardpath prior to calling this command. 
+
+\def\pgfsys@endscope{\pgf@sys@fail{scoping}}
+% Restores the last saved graphic state.
+
+
+
+
+%
+%
+% Special commands
+%
+%
+
+\def\pgfsys@imagesuffixlist{}
+% A list of suffixes, separated by `:', that will be tried when
+% searching for an image.
+
+
+
+%
+%
+% Special commands
+%
+%
+
+
+\def\pgfsys@definemask{\pgf@sys@fail{masking}}
+% This command declares a mask for usage with images. It works similar
+% to \pgfsys@defineimage: Certain macros are set when the command is
+% called. The result should be to set the macro \pgf@mask to a pdf
+% object count that can subsequently be used as a soft mask. The
+% following macros will be set when this command is invoked:
+%
+% - \pgf@filename
+%   File name of the mask to be defined.
+%
+% - \pgf@maskmatte
+%   The so-called matte of the mask (see the pdf documentation for
+%   details). The matte is a color specification consisting of 1, 3 or
+%   4 numbers between 0 and 1. The number of numbers depends on the
+%   number of color channels in the image (not in the mask!). It will
+%   be assumed that the image has been preblended with this color.
+
+
+
+
+%
+%
+% Shading commands
+%
+%
+
+\def\pgfsys@horishading#1#2#3{\pgf@sys@fail{shadings}}
+% Declares a horizontal shading for later use. The effect of this
+% command should be the definition of a macro called `@pgfshading#1!'
+% (or \csname @pdfshading#1!\endcsname, to be precise). When invoked,
+% this new macro should insert a shading at the current position.
+%
+% #1 is the name of the shading, which is also used in the output
+% macro name. #2 is the height of the shading and must be given as a
+% TeX dimension like `2cm' or `10pt'. #3 is a shading color
+% specification as specified in the pgfuserguide. The shading
+% specification implicitly fixes the width of the shading. 
+%
+% When `@pgfshading#1!' is invoked, it should insert a box of height
+% #2 and the width implicit in the shading declaration.
+
+\def\pgfsys@vertshading#1#2#3{\pgf@sys@fail{shadings}}
+% Like horishading, only for vertical shadings. This time, the height
+% of the shading is implicit in #3 and the width is given as #2.
+
+\def\pgfsys@radialshading#1#2#3{\pgf@sys@fail{shadings}}
+% Declares a radial shading. Like the previous macros, this command
+% should setup the macro `@pgfshading#1!', which upon invocation
+% should insert a radial shading whose size is implicit in #3. 
+%
+% The parameter #2 is a pgf point specification if the starting point
+% of the shading. See the pgfuserguide for details.
+
+\def\pgfsys@shadingoutsidepgfpicture#1{%
+  #1%
+}
+% This command gets the definition of a shading (@pgfshadingxxxx!) as
+% an argument and should insert this shading into the normal text.
+%
+% This command has a default implementation.
+
+
+\def\pgfsys@shadinginsidepgfpicture#1{%
+  \pgf@makehbox{#1}%
+  \setbox\pgf@hbox=\hbox{\hskip-.5\wd\pgf@hbox\lower.5\ht\pgf@hbox\hbox{\box\pgf@hbox}}%
+  \pgfqbox{\pgf@hbox}%
+}
+% This command works like \pgfsys@shadingoutsidepgfpicture, only it is
+% called when a shading should be inserted inside a picture. This
+% command should insert the shading centered on the origin (which will
+% typically have been low-level translated somewhere else.)
+%
+% This command has a default implementation.
+
+
+
+
+
+%
+%
+% Commands having a default implementation. These commands only need
+% not be implemented by drivers if this results in a better
+% preformance. 
+%
+%
+
+
+\def\pgfsys@closestroke{\pgfsys@closepath\pgfsys@stroke}
+% This command should have the same effect as first closing the path
+% and then stroking it.
+
+
+\def\pgfsys@transformshift#1#2{\pgfsys@transformcm{1}{0}{0}{1}{#1}{#2}}
+% This command will change the origin of the low-level coordinate
+% system to (#1bp,#2bp).
+
+\def\pgfsys@transformxyscale#1#2{\pgfsys@transformcm{#1}{0}{0}{#2}{0bp}{0bp}}
+% This command will scale the low-level coordinate system (and
+% everything that is drawn) by a factor of #1 in x-directed and #2 in
+% y-direction. Note that this applies to everything, including
+% lines. So a scaled line will have a different width and may even
+% have a different width when going along the x-axis and when going
+% along the y-axis, if the scaling is different in these directions.
+
+\def\pgfsys@hbox#1{%
+  \pgfsys@beginscope%
+    \wd#1=0pt%
+    \ht#1=0pt%
+    \dp#1=0pt%
+    \box#1%
+  \pgfsys@endscope%
+}
+% Called to insert a TeX hbox into a pgfpicture. 
+
+\def\pgfsys@hboxsynced#1{%
+  {\pgfsys@beginscope\pgflowlevelsynccm\pgfsys@hbox#1\pgfsys@endscope}%
+}
+% Called to insert a TeX hbox into a pgfpicture, but with the current
+% coordiante transformation matrix synced with the canvas
+% transformation matrix. 
+%
+% In essence, this command does the same as if you first said
+% \pgflowlevelsynccm and then \pgfsys@hbox. However, a driver may
+% choose to use a ``TeX-translation'' for the translation part of the
+% transformation cm. This will ensure that hyperlinks ``survive'' at
+% least translations. 
+
+\def\pgfsys@beginpicture{}
+% Called at the beginning of a pgfpicture. Used to setup things.
+
+\def\pgfsys@endpicture{}
+% Called at the end of a pgfpicture. 
+
+\def\pgfsys@typesetpicturebox#1{%
+  \setlength\pgf@x{\pgf@shift@baseline}%
+  \advance\pgf@x by-\pgf@picminy\relax%
+  \advance\pgf@picmaxy by-\pgf@picminy\relax% maxy is now the height
+  \advance\pgf@picmaxx by-\pgf@picminx\relax% maxx is now the width
+  \setbox#1=\hbox{\hskip-\pgf@picminx\lower\pgf@picminy\box#1}%
+  \ht#1=\pgf@picmaxy%
+  \wd#1=\pgf@picmaxx%
+  \dp#1=0pt%
+  \leavevmode\raise-\pgf@x\box#1%
+}
+% Called after a picture has been typeset in box #1. This
+% command should insert the box into the normal TeX code. The box #1
+% will still be a ``raw'' box that contains only the \special's. The
+% job of this command is to resize and shift this box according to the
+% baseline shift and the size of the box.
+%
+% This command has a default implementation.
+
+\def\pgfsys@beginpurepicture{\pgfsys@beginpicture}
+% This version of the beginpicture command can be used for pictures
+% that are guaranteed not to contain any hboxes. In this case, a
+% driver might provide a more compact version of the command.
+
+\def\pgfsys@endpurepicture{\pgfsys@endpicture}
+% Called at the end of a ``pure'' pgfpicture.
+
+\def\pgfsys@defineimage{%
+  \ifx\pgf@imagewidth\@empty\else\edef\pgf@imagewidth{width=\pgf@imagewidth,}\fi%
+  \ifx\pgf@imageheight\@empty\else\edef\pgf@imageheight{height=\pgf@imageheight,}\fi%
+  \ifx\pgf@imagepage\@empty\else\edef\pgf@imagepage{page=\pgf@imagepage,}\fi%
+  \edef\pgf@image{\noexpand\includegraphics[\pgf@imageheight\pgf@imagewidth]{\pgf@filename}}%
+}
+% Called, when an image should be defined. 
+%
+% This command does not take any parameters. Instead, certain macros
+% will be preinstalled with appropriate values when this command is
+% invoked. These are:
+%
+% - \pgf@filename
+%   File name of the image to be defined.
+%
+% - \pgf@imagewidth
+%   Will be set to the desired (scaled) width of the image.
+%
+% - \pgf@imageheight
+%   Will be set to the desired (scaled) height of the image.
+%
+%   If this macro and also the height macro are empty, the image
+%   should have its `natural' size.
+%
+%   If exactly only of them is specified, the undefined value the
+%   image is scaled so that the aspect ratio is kept.
+%
+%   If both are set, the image is scaled in both directions
+%   independently, possibly changing the aspect ratio.
+%
+%
+% The following macros presumable mostly make sense for drivers that
+% can handle pdf: 
+%
+% - \pgf@imagepage
+%   The desired page number to be extracted from a multi-page
+%   `image'. 
+%
+% - \pgf@imagemask
+%   If set, it will be set to `/SMask x 0 R', where x is the pdf
+%   object number of a soft mask to be applied to the image.
+%
+% - \pgf@imageinterpolate
+%   If set, it will be set to `/Interpolate true' or  `/Interpolate
+%   false', indicating whether the image should be interpolated in
+%   pdf. 
+%
+%
+% The command should now setup the macro \pgf@image such that calling
+% this macro will result in typesetting the image. Thus, \pgf@image is
+% the `return value' of the command.
+
+
+\def\pgfsys@defobject#1#2#3#4{%
+  \pgfsysprotocol@getcurrentprotocol\pgfsys@temp%
+  {%
+    \pgfsysprotocol@setcurrentprotocol\@empty%
+    \pgfsysprotocol@bufferedtrue%
+    #4%
+    \pgfsysprotocol@getcurrentprotocol\pgfsys@@temp%
+    \expandafter\global\expandafter\let\csname #1\endcsname=\pgfsys@@temp%
+  }%
+  \pgfsysprotocol@setcurrentprotocol\pgfsys@temp%
+}
+% Declares an object for later use. The idea is that the object can be
+% precached in some way and then be rendered more quickly when used
+% several times. For example, an arrow head might be defined and
+% prerendered in this way.
+%
+% The parameter #1 is the name for later use. #2 and #3 are pgf points
+% specifying a bounding box for the object. #4 is the code for the
+% object. The code may only contain protocollable code.
+
+
+\def\pgfsys@useobject#1#2{%
+  \pgfsysprotocol@getcurrentprotocol\pgfsys@temp%
+  {%
+    \pgfsysprotocol@setcurrentprotocol\@empty%
+    \pgfsysprotocol@bufferedfalse%
+    #2%
+    \expandafter\pgfsysprotocol@setcurrentprotocol\csname #1\endcsname%
+    \pgfsysprotocol@invokecurrentprotocol%
+  }%
+  \pgfsysprotocol@setcurrentprotocol\pgfsys@temp%
+}
+% Renders a previously declared object. The first parameter is the
+% name of the the object. The second parameter is extra code that
+% should be executed right *before* the object is rendered. Typically,
+% this will be some transformation code. 
+
+
+\def\pgfsys@begininvisible{\pgfsys@transformcm{1}{0}{0}{1}{2000bp}{2000bp}}
+% Between this command and the closing endinvisible, all output should
+% be suppressed. Nothing should be drawn at all, which includes all
+% paths, images and shadings.
+
+\def\pgfsys@endinvisible{\pgfsys@transformcm{1}{0}{0}{1}{-2000bp}{-2000bp}}
+% Ends the invisibilty section, unless invisibility blocks have been
+% nested. In this case, only the `last' one restores visibility.
+
+
+
+
+% Discern the driver:
+\input pgf.cfg
+
+\PackageInfo{pgfsys}{Driver file for pgf: \pgfsysdriver}
+\InputIfFileExists{\pgfsysdriver}{}{%
+  \PackageError{pgfsys}{Driver file ``\pgfsysdriver'' not found.}{}}
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsysprotocol.code.tex b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsysprotocol.code.tex
new file mode 100644
index 00000000000..119fc5d7128
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsysprotocol.code.tex
@@ -0,0 +1,68 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/systemlayer/pgfsysprotocol.code.tex,v 1.1.1.1 2005/06/29 12:14:04 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+
+
+% This package provides the pgf system protcol layer. Protocolling is
+% used to record a bunch of graphic operations so that they can be
+% reused quickly at a later point.
+%
+% Basically, all ``recordable'' \pgfsys@xxxx commands call
+% \pgfsysprotocol@protocol for their protocolable literal
+% specials. The literal text will either be stored in the current
+% protocol. At a later point (actually, normally this happens
+% immediately afterwards), the accumulated protocolled text is invoked
+% using pgfsys@invokeprotocol.
+
+
+
+\let\pgfsysprotocol@currentprotocol=\@empty
+\newif\ifpgfsysprotocol@buffered
+
+
+% Add to the protocol buffered
+\def\pgfsysprotocol@literalbuffered#1{%
+  \edef\pgfsysprotocol@temp{{#1\space}}%
+  \expandafter\g@addto@macro\expandafter\pgfsysprotocol@currentprotocol\pgfsysprotocol@temp%
+}
+
+% Add to the protocol
+\def\pgfsysprotocol@literal#1{%
+  \pgfsysprotocol@literalbuffered{#1}%
+  \ifpgfsysprotocol@buffered%
+  \else%
+    \pgfsysprotocol@flushcurrentprotocol%
+  \fi%
+}
+
+% Getting and setting the current protocol
+\def\pgfsysprotocol@getcurrentprotocol#1{%
+  \let#1=\pgfsysprotocol@currentprotocol%
+}
+
+\def\pgfsysprotocol@setcurrentprotocol#1{%
+  \global\let\pgfsysprotocol@currentprotocol=#1%
+}
+
+
+% Invoking the current protocol
+\def\pgfsysprotocol@invokecurrentprotocol{%
+  \ifx\pgfsysprotocol@currentprotocol\@empty%
+  \else%
+    \expandafter\pgfsys@invoke\expandafter{\pgfsysprotocol@currentprotocol}%
+  \fi%
+}
+
+\def\pgfsysprotocol@flushcurrentprotocol{%
+  \pgfsysprotocol@invokecurrentprotocol%
+  \pgfsysprotocol@setcurrentprotocol\@empty%
+}
+
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsyssoftpath.code.tex b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsyssoftpath.code.tex
new file mode 100644
index 00000000000..1eecaf431e9
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsyssoftpath.code.tex
@@ -0,0 +1,128 @@
+\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/systemlayer/pgfsyssoftpath.code.tex,v 1.1.1.1 2005/06/29 12:14:05 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+% This package provides the pgf system path abstraction layer. This
+% layer is used to construct paths first ``abstractly.'' These
+% abstract paths can still be modified, before they are ``made
+% concrete.'' 
+%
+% An abstract path consists of a sequence of basic building blocks,
+% each of which is a tuple consisting of two numbers (specifying a
+% coordinate) and a token. Possible tokens are:
+%
+% 1. moveto
+% 2. lineto
+% 3. rectcorner
+% 4. rectsize
+% 5. curvetosupporta
+% 6. curvetosupportb
+% 7. curveto
+% 8. closepath
+% 9. specialround
+%
+% A curveto must always be preceeded by a curvetosupporta and a
+% curvetosupportb. A non-empty path must always begin with a
+% moveto. The coordinates of a closepath are non-specified, currently, 
+% but they might be set to the coordinate of the path segment start,
+% in the future.
+
+
+
+\let\pgfsyssoftpath@currentpath=\@empty
+% The current path
+
+\def\pgfsyssoftpath@lastmoveto{{0pt}{0pt}}
+
+% Add a moveto element to the current path
+\def\pgfsyssoftpath@moveto#1#2{%
+  \edef\pgfsyssoftpath@temp{{%
+    \noexpand\pgfsyssoftpath@movetotoken{#1}{#2}%
+  }}%
+  \expandafter\g@addto@macro\expandafter\pgfsyssoftpath@currentpath\pgfsyssoftpath@temp%
+  \xdef\pgfsyssoftpath@lastmoveto{{#1}{#2}}%
+}
+
+% Add a lineto element to the current path
+\def\pgfsyssoftpath@lineto#1#2{%
+  \edef\pgfsyssoftpath@temp{{%
+    \noexpand\pgfsyssoftpath@linetotoken{#1}{#2}%
+  }}%
+ \expandafter\g@addto@macro\expandafter\pgfsyssoftpath@currentpath\pgfsyssoftpath@temp%
+}
+
+% Add curveto elements to the current path
+\def\pgfsyssoftpath@curveto#1#2#3#4#5#6{%
+  \edef\pgfsyssoftpath@temp{{%
+    \noexpand\pgfsyssoftpath@curvetosupportatoken{#1}{#2}%
+    \noexpand\pgfsyssoftpath@curvetosupportbtoken{#3}{#4}%
+    \noexpand\pgfsyssoftpath@curvetotoken{#5}{#6}%
+  }}%
+ \expandafter\g@addto@macro\expandafter\pgfsyssoftpath@currentpath\pgfsyssoftpath@temp%
+}
+
+% Add rectanlge elements to the current path
+\def\pgfsyssoftpath@rect#1#2#3#4{%
+  \edef\pgfsyssoftpath@temp{{%
+    \noexpand\pgfsyssoftpath@rectcornertoken{#1}{#2}%
+    \noexpand\pgfsyssoftpath@rectsizetoken{#3}{#4}%
+  }}%
+ \expandafter\g@addto@macro\expandafter\pgfsyssoftpath@currentpath\pgfsyssoftpath@temp%
+}
+
+% Add closepath element to the current path
+\def\pgfsyssoftpath@closepath{%
+  \edef\pgfsyssoftpath@temp{{%
+    \noexpand\pgfsyssoftpath@closepathtoken\pgfsyssoftpath@lastmoveto%
+  }}%
+  \expandafter\g@addto@macro\expandafter\pgfsyssoftpath@currentpath\pgfsyssoftpath@temp%
+}
+
+% Add special element to the current path
+\def\pgfsyssoftpath@specialround#1#2{%
+  \edef\pgfsyssoftpath@temp{{%
+    \noexpand\pgfsyssoftpath@specialroundtoken{#1}{#2}%
+  }}%
+ \expandafter\g@addto@macro\expandafter\pgfsyssoftpath@currentpath\pgfsyssoftpath@temp%
+}
+
+
+% Getting and setting the current path
+\def\pgfsyssoftpath@getcurrentpath#1{%
+  \let#1=\pgfsyssoftpath@currentpath%
+}
+
+\def\pgfsyssoftpath@setcurrentpath#1{%
+  \global\let\pgfsyssoftpath@currentpath=#1%
+}
+
+
+% Invoking the current path
+\def\pgfsyssoftpath@invokecurrentpath{%
+  \pgfsyssoftpath@currentpath%
+}
+
+\def\pgfsyssoftpath@flushcurrentpath{%
+  \pgfsyssoftpath@invokecurrentpath%
+  \pgfsyssoftpath@setcurrentpath\@empty%
+}
+
+% Marshallers
+\def\pgfsyssoftpath@movetotoken#1#2{\pgfsys@moveto{#1}{#2}}
+\def\pgfsyssoftpath@linetotoken#1#2{\pgfsys@lineto{#1}{#2}}
+\def\pgfsyssoftpath@rectcornertoken#1#2#3#4#5{\pgfsys@rect{#1}{#2}{#4}{#5}} % #3 = \pgfsyssoftpath@rectsizetoken
+\def\pgfsyssoftpath@curvetosupportatoken#1#2#3#4#5#6#7#8{\pgfsys@curveto{#1}{#2}{#4}{#5}{#7}{#8}}
+\def\pgfsyssoftpath@closepathtoken#1#2{\pgfsys@closepath}
+\let\pgfsyssoftpath@specialroundtoken=\@gobbletwo
+
+
+\endinput
+
+%%% Local Variables: 
+%%% mode: latex
+%%% End: 
diff --git a/Master/texmf-dist/tex/generic/pgf/utilities/pgf-latex-emulation.tex b/Master/texmf-dist/tex/generic/pgf/utilities/pgf-latex-emulation.tex
new file mode 100644
index 00000000000..46ee571bf7d
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/utilities/pgf-latex-emulation.tex
@@ -0,0 +1,291 @@
+% This file is pgf-latex-emulation.tex
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the LaTeX Project Public License Distributed from CTAN
+% archives in directory macros/latex/base/lppl.txt.
+
+\catcode`\@=11\relax
+
+\def\pgf@test@fmtname{LaTeX2e}
+\expandafter\ifx\csname fmtname\endcsname\pgf@test@fmtname%
+  \PackageError{pgf}{This file should not be loaded with \LaTeX.}{}
+\else%
+
+% Direct copy from latex.ltx:
+\long\def\@ifundefined#1#2#3{\expandafter\ifx\csname #1\endcsname\relax#2\else#3\fi}
+\def\typeout#1{\immediate\write\@unused{#1}}
+\alloc@7\write\chardef\sixt@@n\@unused
+\let\@@par=\par
+\def\@empty{}
+\def\@gobble #1{}
+\def\@gobbletwo #1#2{}
+\long\def\@ifnextchar#1#2#3{%
+  \let\reserved@d=#1%
+  \def\reserved@a{#2}%
+  \def\reserved@b{#3}%
+  \futurelet\@let@token\@ifnch}
+\def\@ifnch{%
+  \ifx\@let@token\@sptoken
+    \let\reserved@c\@xifnch
+  \else
+    \ifx\@let@token\reserved@d
+      \let\reserved@c\reserved@a
+    \else
+      \let\reserved@c\reserved@b
+    \fi
+  \fi
+  \reserved@c}
+\def\in@#1#2{%
+ \def\in@@##1#1##2##3\in@@{%
+  \ifx\in@##2\in@false\else\in@true\fi}%
+ \in@@#2#1\in@\in@@}
+\newif\ifin@
+\newdimen\@tempdima
+\newdimen\@tempdimb
+\newcount\@tempcnta
+\newcount\@tempcntb
+\def\@namedef#1{\expandafter\def\csname #1\endcsname}
+\long\def\g@addto@macro#1#2{%
+  \begingroup
+    \toks@\expandafter{#1#2}%
+    \xdef#1{\the\toks@}%
+ \endgroup}
+\long\def\mbox#1{\leavevmode\hbox{#1}}
+\begingroup
+\def\:{\global\let\@sptoken= } \:
+\def\:{\@xifnch} \expandafter\def\: {\futurelet\@let@token\@ifnch}
+\endgroup
+\def\@nnil{\@nil}
+\def\@fornoop#1\@@#2#3{}
+\long\def\@for#1:=#2\do#3{%
+  \expandafter\def\expandafter\@fortmp\expandafter{#2}%
+  \ifx\@fortmp\@empty \else
+    \expandafter\@forloop#2,\@nil,\@nil\@@#1{#3}\fi}
+\long\def\@forloop#1,#2,#3\@@#4#5{\def#4{#1}\ifx #4\@nnil \else
+       #5\def#4{#2}\ifx #4\@nnil \else#5\@iforloop #3\@@#4{#5}\fi\fi}
+\long\def\@iforloop#1,#2\@@#3#4{\def#3{#1}\ifx #3\@nnil
+       \expandafter\@fornoop \else
+      #4\relax\expandafter\@iforloop\fi#2\@@#3{#4}}
+\def\@tfor#1:={\@tf@r#1 }
+\long\def\@tf@r#1#2\do#3{\def\@fortmp{#2}\ifx\@fortmp\space\else
+    \@tforloop#2\@nil\@nil\@@#1{#3}\fi}
+\long\def\@tforloop#1#2\@@#3#4{\def#3{#1}\ifx #3\@nnil
+       \expandafter\@fornoop \else
+      #4\relax\expandafter\@tforloop\fi#2\@@#3{#4}}
+\chardef\@inputcheck0
+\def\IfFileExists#1#2#3{%
+  \openin\@inputcheck#1 %
+  \ifeof\@inputcheck
+     #3\relax
+  \else
+    #2\relax
+  \fi
+  \closein\@inputcheck}
+\newbox\@tempboxa
+\newif\if@tempswa
+\long\def\@firstoftwo#1#2{#1}
+\long\def\@secondoftwo#1#2{#2}
+    
+% Simplified version of latex.ltx:
+\def\PackageInfo#1#2{}%\typeout{Package #1: Info: #2.}}%
+\def\PackageWarning#1#2{\typeout{Package #1: Warning! #2.}}%
+\def\PackageError#1#2#3{\typeout{Package #1: Error! #2.}}%
+\long\def\AtBeginDocument#1{#1}%
+\long\def\AtBeginDvi#1{#1}%
+\def\InputIfFileExists#1#2#3{\input #1\relax#2}%
+\def\minipage[#1]#2{%
+  \hbox to#2\bgroup%
+    \hsize=#2\relax%
+    \vbox\bgroup\leavevmode%
+}
+\def\endminipage{\egroup\egroup}
+\def\providecommand#1#2{\def#1{#2}}
+
+\def\newcounter#1{\expandafter\alloc@\expandafter0\expandafter\count\expandafter\countdef\expandafter\insc@unt\csname c@#1\endcsname}%
+\def\setcounter#1#2{\global\csname c@#1\endcsname#2\relax}%
+\def\addtocounter#1#2{\global\advance\csname c@#1\endcsname #2\relax}
+\def\setlength#1#2{#1#2\relax}
+\def\addtolength#1#2{\advance#1 #2\relax}
+
+
+% Driver detector (not so good):
+\ifx\pdfoutput\@undefined\alloc@0\count\countdef\insc@unt\pdfoutput\fi
+\ifx\pdfoutput\relax\alloc@0\count\countdef\insc@unt\pdfoutput\fi
+\ifcase\pdfoutput%
+  \gdef\Gin@driver{dvips.def}%
+\else%
+  \gdef\Gin@driver{pdftex.def}%
+\fi%
+
+
+% Things that are not too clever, yet:
+\def\selectfont{\rm}
+\def\applycolormixins#1{}
+
+
+% My ultra-quick xcolor.sty emulation...
+\newif\ifglobalcolors
+\def\definecolor#1#2#3{\csname pgf@emu@#2\endcsname{#1}#3\@nil}
+\def\pgf@emu@rgb#1#2,#3,#4\@nil{\expandafter\def\csname\string\color@#1\endcsname{\xcolor@{}{}{rgb}{#2,#3,#4}}}
+\def\pgf@emu@gray#1#2\@nil{\expandafter\def\csname\string\color@#1\endcsname{\xcolor@{}{}{rgb}{#2,#2,#2}}}
+
+\definecolor{white}{gray}{1}
+\definecolor{black}{gray}{0}
+\definecolor{gray}{gray}{0.5}
+\definecolor{red}{rgb}{1,0,0}
+\definecolor{green}{rgb}{0,1,0}
+\definecolor{blue}{rgb}{0,0,1}
+\definecolor{cyan}{rgb}{0,1,1}
+\definecolor{magenta}{rgb}{1,0,1}
+\definecolor{yellow}{rgb}{1,1,0}
+\definecolor{orange}{rgb}{1,0.5,0}
+\definecolor{violet}{rgb}{0.5,0,0.5}
+\definecolor{purple}{rgb}{0.75,0,0.25}
+\definecolor{brown}{rgb}{0.75,0.5,0.25}
+
+\def\color#1{%
+  \pgfsysprotocol@getcurrentprotocol\pgf@emu@temp%
+  {%
+    \pgfsysprotocol@setcurrentprotocol\@empty%
+    \pgfsysprotocol@bufferedtrue%
+    \pgfsetcolor{#1}%
+    \expandafter\pgfsys@outerinvoke\expandafter{\pgfsysprotocol@currentprotocol}%
+  }%
+  \pgfsysprotocol@setcurrentprotocol\pgf@emu@temp%
+  \edef\pgf@marshal{\noexpand\let\expandafter\noexpand\csname\string\color@.\endcsname=%
+                    \expandafter\noexpand\csname\string\color@#1\endcsname}%
+  \pgf@marshal%
+  \aftergroup\reset@color%                
+}
+\def\reset@color{%
+  \pgfsysprotocol@getcurrentprotocol\pgf@emu@temp%
+  {%
+    \pgfsysprotocol@setcurrentprotocol\@empty%
+    \pgfsysprotocol@bufferedtrue%
+    \pgfsetcolor{.}%
+    \expandafter\pgfsys@outerinvoke\expandafter{\pgfsysprotocol@currentprotocol}%
+  }%
+  \pgfsysprotocol@setcurrentprotocol\pgf@emu@temp%
+}
+\expandafter\def\csname\string\color@.\endcsname{\xcolor@{}{}{rgb}{0,0,0}}
+
+
+\def\colorlet#1#2{%
+  \in@!{#2}%
+  \ifin@%
+    % compute mixture
+    {%
+      \pgf@emu@mix#2!white!\@nil%
+      \xdef\pgf@marshal{\noexpand\def\expandafter\noexpand\csname\string\color@#1\endcsname{%
+          \noexpand\xcolor@{}{}{rgb}{\pgf@sys@tonumber\pgf@xa,\pgf@sys@tonumber\pgf@xb,\pgf@sys@tonumber\pgf@xc}}}%
+    }%
+    \pgf@marshal%
+  \else%
+    \edef\pgf@marshal{\noexpand\let\expandafter\noexpand\csname\string\color@#1\endcsname=%
+                      \expandafter\noexpand\csname\string\color@#2\endcsname}%
+    \pgf@marshal%
+  \fi%  
+}
+\def\pgf@emu@mix#1!#2!#3!#4\@nil{%
+  \expandafter\expandafter\expandafter\pgf@emu@unpack\csname\string\color@#1\endcsname%
+  \pgf@ya=\pgf@xa%
+  \pgf@yb=\pgf@xb%
+  \pgf@yc=\pgf@xc%
+  \expandafter\expandafter\expandafter\pgf@emu@unpack\csname\string\color@#3\endcsname%
+  \c@pgf@counta=#2\relax%
+  \c@pgf@countb=100\relax%
+  \advance\c@pgf@countb by-\c@pgf@counta\relax%
+  \pgf@xa=\c@pgf@countb\pgf@xa%
+  \advance\pgf@xa by\c@pgf@counta\pgf@ya%
+  \divide\pgf@xa by 100\relax%
+  \pgf@xb=\c@pgf@countb\pgf@xb%
+  \advance\pgf@xb by\c@pgf@counta\pgf@yb%
+  \divide\pgf@xb by 100\relax%
+  \pgf@xc=\c@pgf@countb\pgf@xc%
+  \advance\pgf@xc by\c@pgf@counta\pgf@yc%
+  \divide\pgf@xc by 100\relax%
+}
+\def\pgf@emu@unpack#1#2#3#4#5{%
+  \pgf@emu@@unpack#5\@nil%
+}
+\def\pgf@emu@@unpack#1,#2,#3\@nil{%
+  \pgf@xa=#1pt%
+  \pgf@xb=#2pt%
+  \pgf@xc=#3pt%
+}
+
+\def\extractcolorspec#1#2{%
+  \def#2{{#1}}%
+}
+
+\def\convertcolorspec#1#2#3{%
+  \edef#3{\expandafter\expandafter\expandafter\pgf@emu@select\csname\string\color@#1\endcsname}%
+}
+\def\pgf@emu@select#1#2#3#4#5{#5}
+
+
+
+
+% Adapted from keyval.sty:
+\newtoks\KV@toks@
+
+\ifx\setkeys\@undefined
+\def\setkeys#1#2{%
+  \def\KV@prefix{KV@#1@}%
+  \let\@tempc\relax
+  \KV@do#2,\relax,}
+\def\KV@do#1,{%
+ \ifx\relax#1\empty\else
+  \KV@split#1==\relax
+  \expandafter\KV@do\fi}
+\def\KV@split#1=#2=#3\relax{%
+  \KV@@sp@def\@tempa{#1}%
+  \ifx\@tempa\@empty\else
+    \expandafter\let\expandafter\@tempc
+      \csname\KV@prefix\@tempa\endcsname
+    \ifx\@tempc\relax
+      \KV@errx
+       {\@tempa\space undefined}%
+    \else
+      \ifx\@empty#3\@empty
+        \KV@default
+      \else
+        \KV@@sp@def\@tempb{#2}%
+        \expandafter\@tempc\expandafter{\@tempb}\relax
+      \fi
+    \fi
+  \fi}
+\def\KV@default{%
+  \expandafter\let\expandafter\@tempb
+    \csname\KV@prefix\@tempa @default\endcsname
+  \ifx\@tempb\relax
+    \KV@errx{No value specified for \@tempa}%
+  \else
+    \@tempb\relax
+  \fi}
+\def\KV@errx#1{\PackageError{keyval}{#1}{}}
+\def\@tempa#1{%
+\def\KV@@sp@def##1##2{%
+  \futurelet\KV@tempa\KV@@sp@d##2\@nil\@nil#1\@nil\relax##1}%
+\def\KV@@sp@d{%
+  \ifx\KV@tempa\@sptoken
+    \expandafter\KV@@sp@b
+  \else
+    \expandafter\KV@@sp@b\expandafter#1%
+  \fi}%
+\def\KV@@sp@b#1##1 \@nil{\KV@@sp@c##1}%
+  }
+\@tempa{ }
+\def\KV@@sp@c#1\@nil#2\relax#3{\KV@toks@{#1}\edef#3{\the\KV@toks@}}
+\def\define@key#1#2{%
+  \@ifnextchar[{\KV@def{#1}{#2}}{\@namedef{KV@#1@#2}####1}}
+\def\KV@def#1#2[#3]{%
+  \@namedef{KV@#1@#2@default\expandafter}\expandafter
+    {\csname KV@#1@#2\endcsname{#3}}%
+  \@namedef{KV@#1@#2}##1}
+\fi%
+\fi%
+
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/utilities/pgffor.code.tex b/Master/texmf-dist/tex/generic/pgf/utilities/pgffor.code.tex
new file mode 100644
index 00000000000..6d381dcbdec
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/utilities/pgffor.code.tex
@@ -0,0 +1,217 @@
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/utilities/pgffor.code.tex,v 1.2 2005/07/06 15:58:58 tantau Exp $
+
+% Copyright 2005 by Till Tantau <tantau@cs.tu-berlin.de>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+
+
+\newdimen\pgffor@iter
+\newdimen\pgffor@skip
+\newif\ifpgffor@continue
+
+\let\pgffor@beginhook=\@empty
+\let\pgffor@endhook=\@empty
+\let\pgffor@afterhook=\@empty
+
+\def\foreach#1in#2{%
+  \def\pgffor@var{#1}%
+  \def\pgffor@values{#2, \pgffor@stop,}%
+  \let\pgffor@body\@empty%
+  \global\pgffor@continuetrue%
+  \pgffor@collectbody}
+
+\def\pgffor@collectbody{%
+  \@ifnextchar\foreach{\pgffor@collectforeach}{%
+    \@ifnextchar\bgroup{\pgffor@collectargument}{\pgffor@collectsemicolon}}%
+}
+
+\def\pgffor@collectforeach\foreach#1in#2{%
+  \expandafter\long\expandafter\def\expandafter\pgffor@body\expandafter{\pgffor@body\foreach#1in{#2}}%
+  \pgffor@collectbody%
+}
+
+\long\def\pgffor@collectargument#1{%
+  \expandafter\long\expandafter\def\expandafter\pgffor@body\expandafter{\pgffor@body{#1}}%
+  \pgffor@iterate%
+}
+
+
+\def\pgffor@collectsemicolon{%
+  \let\pgffor@next=\pgffor@collectnormalsemicolon%
+  \ifnum\the\catcode`\;=\active\relax%
+    \let\pgffor@next=\pgffor@collectactivesemicolon%
+  \fi%
+  \pgffor@next%
+}
+
+\def\pgffor@collectnormalsemicolon#1;{%
+  \expandafter\long\expandafter\def\expandafter\pgffor@body\expandafter{\pgffor@body#1;}%
+  \pgffor@iterate%
+}
+
+{
+  \catcode`\;=\active
+  
+  \gdef\pgffor@collectactivesemicolon#1;{%
+    \expandafter\long\expandafter\def\expandafter\pgffor@body\expandafter{\pgffor@body#1;}%
+    \pgffor@iterate%
+  }
+}
+
+\def\pgffor@iterate{%
+  \let\pgffor@last\@empty%
+  \let\pgffor@prevlast\@empty%
+  \expandafter\pgffor@scan\pgffor@values}
+
+\def\pgffor@stop{\pgffor@stop}%
+\def\pgffor@dots{...}%
+
+\def\pgffor@scan{\@ifnextchar({\pgffor@scanround}{\pgffor@scanone}}
+\def\pgffor@scanround(#1)#2,{\def\pgffor@value{(#1)}\pgffor@scanned}
+\def\pgffor@scanone#1,{\def\pgffor@value{#1}\pgffor@scanned}
+
+\def\pgffor@scanned{%
+  \ifx\pgffor@value\pgffor@stop%
+    \let\pgffor@next=\pgffor@after% done!
+  \else%
+    \ifx\pgffor@value\pgffor@dots%
+      \let\pgffor@next=\pgffor@handledots%
+    \else%
+      \let\pgffor@next=\pgffor@handlevalue%
+    \fi%
+    \ifpgffor@continue%
+    \else%
+      \let\pgffor@next=\pgffor@scan% done!
+    \fi%
+  \fi%
+  \pgffor@next}
+
+\def\pgffor@after{%
+  \global\pgffor@continuetrue%
+  \pgffor@afterhook}
+
+\def\pgffor@handlevalue{%
+  \let\pgffor@prevlast\pgffor@last%
+  \let\pgffor@last\pgffor@value%
+  \pgffor@invokebody%
+  \pgffor@scan%
+}
+
+\def\pgffor@invokebody{%
+  \begingroup%
+    \expandafter\in@\expandafter/\expandafter{\pgffor@var}%
+    \ifin@%
+      \expandafter\def\expandafter\pgffor@valuerest\expandafter{\pgffor@value//\relax}%
+      \expandafter\pgffor@multiassign\pgffor@var/\pgffor@stop/\pgffor@stop/\relax%
+    \else%
+      \expandafter\expandafter\expandafter\def\expandafter\pgffor@var\expandafter{\pgffor@value}%
+    \fi%
+    \expandafter\pgffor@beginhook\pgffor@body\pgffor@endhook%
+  \endgroup%
+}
+
+
+\def\pgffor@multiassign#1/#2/\relax{%
+  \def\pgffor@currentvar{#1}%
+  \def\pgffor@rest{#2}%
+  \ifx\pgffor@currentvar\pgffor@stop%
+    \let\pgffor@next=\relax%
+  \else%
+    \let\pgffor@next=\pgffor@multiassignrest%
+  \fi%
+  \pgffor@next%
+}
+
+\def\pgffor@multiassignrest{\expandafter\pgffor@multiassignfinal\pgffor@valuerest}
+\def\pgffor@multiassignfinal#1/#2/\relax{%
+  \def\pgffor@test{#2}%
+  \ifx\pgffor@test\@empty%
+    \def\pgffor@valuerest{#1//\relax}% repeat
+  \else%
+    \def\pgffor@valuerest{#2/\relax}%
+  \fi%
+  \expandafter\def\pgffor@currentvar{#1}%
+  \expandafter\pgffor@multiassign\pgffor@rest/\relax%
+}
+  
+
+
+
+\def\pgffor@handledots{%
+  \ifx\pgffor@last\@empty%
+    \PackageError{pgffor}{``...'' not allowed without prior value}{}%
+  \fi%
+  \pgffor@dotsscanend%
+}
+\def\pgffor@dotsscanend#1,{%
+  \def\pgffor@dotsend{#1}%
+  % calculate skip%
+  \ifx\pgffor@prevlast\@empty%
+    \ifdim\pgffor@dotsend pt>\pgffor@last pt%
+      \pgffor@skip=1pt%
+    \else%
+      \pgffor@skip=-1pt%
+    \fi%
+  \else%
+    \pgffor@skip=\pgffor@last pt%
+    \pgffor@iter=\pgffor@prevlast pt%
+    \advance\pgffor@skip by-\pgffor@iter%
+  \fi%
+  \pgffor@iter=\pgffor@last pt%
+  % do loop
+  \pgffor@loop%
+}
+
+\def\pgffor@loop{%
+  \advance\pgffor@iter by\pgffor@skip%
+  \let\pgffor@next=\pgffor@doloop%
+  \ifdim\pgffor@skip<0pt%
+    \ifdim\pgffor@iter<\pgffor@dotsend pt%
+      \let\pgffor@next=\pgffor@endloop%
+    \fi%
+  \else%
+    \ifdim\pgffor@iter>\pgffor@dotsend pt%
+      \let\pgffor@next=\pgffor@endloop%
+    \fi%
+  \fi%
+  \ifpgffor@continue%
+  \else%
+    \let\pgffor@next=\pgffor@endloop% done!
+  \fi%
+  \pgffor@next%
+}
+
+\def\pgffor@endloop{%
+  \pgffor@scan%
+}
+
+{\catcode`\p=12\catcode`\t=12\gdef\Pgffor@geT#1pt{#1}}
+
+\def\pgffor@doloop{%
+  \begingroup%
+    \edef\pgffor@temp{\expandafter\Pgffor@geT\the\pgffor@iter}%
+    \edef\pgffor@incheck{{.0/}{\pgffor@temp/}}%
+    \expandafter\in@\pgffor@incheck%
+    \ifin@%
+      \expandafter\pgffor@strip\pgffor@temp%
+    \fi%
+    \expandafter\in@\expandafter/\expandafter{\pgffor@var}%
+    \ifin@%
+      \expandafter\def\expandafter\pgffor@valuerest\expandafter{\pgffor@temp//\relax}%
+      \expandafter\pgffor@multiassign\pgffor@var/\pgffor@stop/\pgffor@stop/\relax%
+    \else%
+      \expandafter\expandafter\expandafter\def\expandafter\pgffor@var\expandafter{\pgffor@temp}%
+    \fi%
+    \expandafter\pgffor@beginhook\pgffor@body\pgffor@endhook%
+  \endgroup%
+  \pgffor@loop%  
+}
+
+\def\pgffor@strip#1.0{\def\pgffor@temp{#1}}
+
+
+\def\breakforeach{\global\pgffor@continuefalse}
+  
+\endinput
diff --git a/Master/texmf-dist/tex/generic/pgf/utilities/pgfrcs.code.tex b/Master/texmf-dist/tex/generic/pgf/utilities/pgfrcs.code.tex
new file mode 100644
index 00000000000..3686eec117b
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/pgf/utilities/pgfrcs.code.tex
@@ -0,0 +1,85 @@
+% Copyright 2005 by Till Tantau <tantau@users.sourceforge.net>.
+%
+% This program can be redistributed and/or modified under the terms
+% of the GNU Public License, version 2.
+
+% The purpose of this file is to define the command
+% \ProvidesPackageRCS, which should be followed by an RCS id
+% string. This command will also be available in plain TeX, where it
+% prints out a message to the log.
+
+
+\def\pgfversion{1.00}
+
+
+\ifx\pgfrcsloaded\undefined
+\def\pgfrcsloaded{}
+
+\edef\pgfrcsatcode{\the\catcode`\@}
+\catcode`\@=11
+
+\def\@empty{}
+
+% Get date and version from RCS Ids
+\def\pgf@parseid $#1: #2.#3,v #4 #5/#6/#7 #8${%
+  \pgf@parsercsfile$#2/$
+  \def\pgf@rcssuffix{#3}
+  \def\pgf@rcsrevision{#4}
+  \def\pgf@rcsdate{#5/#6/#7}
+}
+\def\pgf@parsercsfile$#1/#2${
+  \def\pgf@temp{#2}
+  \ifx\pgf@temp\@empty
+    \def\pgf@rcsfile{#1}
+  \else
+    \pgf@parsercsfile$#2$
+  \fi}
+
+\def\ProvidesFileRCS $#1${
+  \pgf@parseid $#1$
+  \ProvidesFile{\pgf@rcsfile.\pgf@rcssuffix}[\pgf@rcsdate\space (rcs-revision \pgf@rcsrevision)]
+}
+
+\def\ProvidesPackageRCS{%
+  \def\pgf@rcsadditional{}%
+  \afterassignment\pgfrcs@checkforoptional\let\next=}
+
+\def\pgfrcs@checkforoptional{%
+  \ifx\next[%
+    \let\next=\pgfrcs@getoptional%
+  \else
+    \let\next=\pgfrcs@package%
+  \fi%
+  \next}%}
+
+\def\pgfrcs@getoptional#1] ${%
+  \def\pgf@rcsadditional{#1}%
+  \pgfrcs@package%
+}
+
+\def\pgfrcs@package#1${
+  \pgf@parseid $#1$
+  \ProvidesPackage{\pgf@rcsfile}[\pgf@rcsdate\space\pgf@rcsadditional\space(rcs-revision \pgf@rcsrevision)]
+}
+
+\def\ProvidesClassRCS $#1$ [#2]{%
+  \pgf@parseid $#1$
+  \ProvidesClass{\pgf@rcsfile}[\pgf@rcsdate\space#2\space (rcs-revision \pgf@rcsrevision)]
+}
+
+\ifx\ProvidesPackage\@undefined
+  % plain tex
+  \def\ProvidesPackage#1[#2]{\wlog{Loading package #1 version #2.}}
+\fi
+
+\ifx\ProvidesFile\@undefined
+  % plain tex
+  \def\ProvidesFile#1[#2]{\wlog{Loading file #1 version #2.}}
+\fi
+
+\ProvidesPackageRCS[v\pgfversion] $Header: /cvsroot/pgf/pgf/generic/pgf/utilities/pgfrcs.code.tex,v 1.7 2005/10/23 16:16:21 tantau Exp $
+
+\catcode`\@=\pgfrcsatcode
+
+\fi
+