diff options
author | Karl Berry <karl@freefriends.org> | 2008-02-23 00:49:54 +0000 |
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committer | Karl Berry <karl@freefriends.org> | 2008-02-23 00:49:54 +0000 |
commit | 4fc1af1461e934c39f8f5e10d5d8788681d82223 (patch) | |
tree | 7716e8a3e8787a3d11c5ce728d21b808f786ce7d /Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepathconstruct.code.tex | |
parent | 6f5a4edf390b6e05291d7a4b816782b14122a205 (diff) |
tikz/pgf 2.0 first attempt (22feb08)
git-svn-id: svn://tug.org/texlive/trunk@6741 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepathconstruct.code.tex')
-rw-r--r-- | Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepathconstruct.code.tex | 857 |
1 files changed, 0 insertions, 857 deletions
diff --git a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepathconstruct.code.tex b/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepathconstruct.code.tex deleted file mode 100644 index 2886ffa8a53..00000000000 --- a/Master/texmf-dist/tex/generic/pgf/basiclayer/pgfcorepathconstruct.code.tex +++ /dev/null @@ -1,857 +0,0 @@ -% Copyright 2006 by Till Tantau -% -% This file may be distributed and/or modified -% -% 1. under the LaTeX Project Public License and/or -% 2. under the GNU Public License. -% -% See the file doc/generic/pgf/licenses/LICENSE for more details. - -\ProvidesFileRCS $Header: /cvsroot/pgf/pgf/generic/pgf/basiclayer/pgfcorepathconstruct.code.tex,v 1.9 2007/06/07 07:41:10 tantau Exp $ - - -\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{% - \pgfmathsetcounter{pgf@countc}{#1}% - \pgfmathsetcounter{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% - \pgfutil@tempcnta=\c@pgf@countc\relax% - \advance\pgfutil@tempcnta by-\c@pgf@countd\relax% - \ifnum\pgfutil@tempcnta<0\relax% - \pgfutil@tempcnta=-\pgfutil@tempcnta\relax% - \fi% - \ifnum\pgfutil@tempcnta>90\relax% - \ifnum\c@pgf@countd>\c@pgf@countc\relax% - \pgfutil@tempcnta=\c@pgf@countc\relax% - \advance\pgfutil@tempcnta by 90\relax% - \expandafter\pgf@arc\expandafter{\expandafter\c@pgf@countc\expandafter}\expandafter{\the\pgfutil@tempcnta}{#3}% - \advance\c@pgf@countc by 90\relax% - \else - \pgfutil@tempcnta=\c@pgf@countc\relax% - \advance\pgfutil@tempcnta by -90\relax% - \expandafter\pgf@arc\expandafter{\expandafter\c@pgf@countc\expandafter}\expandafter{\the\pgfutil@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{% - \pgfutil@in@{and }{#3}% - \ifpgfutil@in@% - \pgf@@arc{#1}{#2}#3\@@% - \else - \pgf@@arc{#1}{#2}#3and #3\@@% - \fi% -} - -\def\pgf@@arc#1#2#3and #4\@@{% - \pgfmathsetlength{\pgfutil@tempdima}{#3}% - \pgfmathsetlength{\pgfutil@tempdimb}{#4}% - \pgfutil@tempcnta=#1\relax% - \pgfutil@tempcntb=#2\relax% - \advance\pgfutil@tempcntb by-\pgfutil@tempcnta\relax% - \ifnum\pgfutil@tempcntb<0\relax% - \pgfutil@tempcntb=-\pgfutil@tempcntb\relax% - \fi% - \ifnum\pgfutil@tempcntb>85\relax% hackery to correct the control points - \pgfutil@tempdima=0.0555\pgfutil@tempdima\relax% - \pgfutil@tempdimb=0.0555\pgfutil@tempdimb\relax% - \else% - \ifnum\pgfutil@tempcntb>75\relax% - \pgfutil@tempdima=0.055\pgfutil@tempdima\relax% - \pgfutil@tempdimb=0.055\pgfutil@tempdimb\relax% - \else% - \ifnum\pgfutil@tempcntb>60\relax% - \pgfutil@tempdima=0.0545\pgfutil@tempdima\relax% - \pgfutil@tempdimb=0.0545\pgfutil@tempdimb\relax% - \else% - \pgfutil@tempdima=0.054\pgfutil@tempdima\relax% - \pgfutil@tempdimb=0.054\pgfutil@tempdimb\relax% - \fi% - \fi% - \fi - \pgfutil@tempdima=\pgfutil@tempcntb\pgfutil@tempdima\relax% - \divide\pgfutil@tempdima by 9\relax% - \pgfutil@tempdimb=\pgfutil@tempcntb\pgfutil@tempdimb\relax% - \divide\pgfutil@tempdimb by 9\relax% - %.. controls +(\pgfutil@tempcnta+90:\pgfutil@tempdima) and +(\pgfutil@tempcntb-90:\pgfutil@tempdima) .. +(-(#1:#3)+(#2:#3))% - % store first support vector in xa/ya: - \pgfutil@tempcnta=#1\relax% - \ifnum#2>#1\relax% - \advance\pgfutil@tempcnta by 90\relax% - \else% - \advance\pgfutil@tempcnta by -90\relax% - \fi% - \pgfpointtransformed{\pgfpointpolar{\pgfutil@tempcnta}{\pgfutil@tempdima and \pgfutil@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: - \pgfutil@tempcnta=#1\relax% - \pgfpointtransformed{\pgfpointpolar{\pgfutil@tempcnta}{#3and #4}}% - \pgf@xb=\pgf@path@lastx% - \pgf@yb=\pgf@path@lasty% - \advance\pgf@xb by -\pgf@x% - \advance\pgf@yb by -\pgf@y% - \pgfutil@tempcnta=#2\relax% - \pgfpointtransformed{\pgfpointpolar{\pgfutil@tempcnta}{#3and #4}}% - \advance\pgf@xb by \pgf@x% - \advance\pgf@yb by \pgf@y% - % store second support xc/yc: - \pgfutil@tempcnta=#2\relax% - \ifnum#2>#1\relax% - \advance\pgfutil@tempcnta by -90\relax% - \else% - \advance\pgfutil@tempcnta by 90\relax% - \fi% - \pgfpointtransformed{\pgfpointpolar{\pgfutil@tempcnta}{\pgfutil@tempdima and \pgfutil@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 arc to the current point, where the arc is on an ellipse -% given by two axis vectors. -% -% #1 = angle of first point -% #2 = angle of second point -% #3 = first axis -% #4 = second axis -% -% Example: -% -% \pgfpathmoveto{\pgfxy(0,0)} -% \pgfpatharcaxes{0}{90}{\pgfpointxy{2}{0}}{\pgfpointxy{0}{2}} -% \pgfstroke - -\def\pgfpatharcaxes#1#2#3#4{% - {% - \pgftransformtriangle{\pgfpointorigin}{#3}{#4}% - \pgfpatharc{#1}{#2}{1pt}% - }% -} - - - - -% 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{\pgfqpoint{\pgf@xa}{\pgf@ya}}% - \pgfpathlineto{\pgfqpoint{\pgf@xb}{\pgf@ya}}% - \pgfpathlineto{\pgfqpoint{\pgf@xb}{\pgf@yb}}% - \pgfpathlineto{\pgfqpoint{\pgf@xa}{\pgf@yb}}% - \pgfpathclose% - \pgfpathmoveto{\pgfqpoint{\pgf@xb}{\pgf@yb}}% -} - -% 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}{\pgfqpoint{\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}{\pgfmathsetlength{\pgf@x}{#1}\relax} -\define@key{pgfbase}{stepy}{\pgfmathsetlength{\pgf@y}{#1}\relax} -\define@key{pgfbase}{step}{\pgf@process{#1}} - -\def\pgfpathgrid{\pgfutil@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% - \pgfutil@tempswatrue% - \ifdim\pgf@xb=0pt\relax% - \ifdim\pgf@yb=0pt\relax% - \pgfutil@tempswafalse% - \fi% - \fi% - {% - \ifpgfutil@tempswa% - \pgf@arccornersfalse - \else% - \fi% - \pgfutil@tempswatrue% - \ifdim\pgf@xc=0pt\relax% - \ifdim\pgf@yc=0pt\relax% - \pgfutil@tempswafalse% - \fi% - \fi% - \ifpgfutil@tempswa - {% - \pgf@pt@x=\pgf@path@lastx% - \pgf@pt@y=\pgf@path@lasty% - \pgfpathcurveto% - {\pgfqpoint{.1125\pgf@xc}{.225\pgf@yc}}% found by trial and error - {\pgfqpoint{.5\pgf@xc}{\pgf@yc}}% found by trial and error - {\pgfqpoint{\pgf@xc}{\pgf@yc}}% - }% - \fi% - }% - \ifpgfutil@tempswa% - \pgf@xc=\pgf@xb% - \pgf@yc=\pgf@yb% - {% - \pgf@pt@x=\pgf@path@lastx% - \pgf@pt@y=\pgf@path@lasty% - \pgfpathcurveto% - {\pgfqpoint{.5\pgf@xc}{0\pgf@yc}}% found by trial and error - {\pgfqpoint{.8875\pgf@xc}{.775\pgf@yc}}% found by trial and error - {\pgfqpoint{\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% - {\pgfqpoint{.31831\pgf@xc}{.5\pgf@yc}}% found by trial and error - {\pgfqpoint{.63503\pgf@xc}{\pgf@yc}}% found by trial and error - {\pgfqpoint{\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% - {\pgfqpoint{.36497\pgf@xc}{0pt}}% found by trial and error - {\pgfqpoint{.68169\pgf@xc}{.5\pgf@yc}}% found by trial and error - {\pgfqpoint{\pgf@xc}{\pgf@yc}}% - }% -} - - -\endinput |