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+%% BEGIN pst-fill.tex
+%%
+%% Filling and tiling with PSTricks 97.
+%%
+%%
+%% COPYRIGHT 1993, 1994, 1999 by Timothy Van Zandt, tvz@nwu.edu.
+%%
+%% 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.
+%%
+%%
+%% Note (hv - August 17, 04 ):
+%% merge the VTeX and TeX versions (patch 4)
+%% Note (hv - June 22, 04 ):
+%% * delete the Pst@Debug option and use the
+%% the one from pstricks to prevent a clash with pst-gr3d
+%% * Patched by MV 09-10-2001 to make it work with VTeX.
+%% Note (D.G. - April 8, 97 and November / December 97):
+%% * With a \PstTiling macro defined (or "tiling" optional parameter
+%% on \usepackage[tiling]{pst-fill}), this file run exactly as
+%% the original boxfill.tex file from Timothy, version 0.94,
+%% except a correction in \pst@ManualFillCycle to avoid a division by 0.
+%% It's the default.
+%% * With a \PstTiling macro defined (or "tiling" optional parameter
+%% on \usepackage[tiling]{pst-fill}) there are several add-ons
+%% and changes to do `tiling' rather than `filling' in "automatic" mode :
+%% - we fix the position of the beginning of tiling,
+%% - we allow normally the framing of the area as expected, using
+%% the line.... parameters
+%% - we define move parameters fillmovex, fillmovey and fillmove,
+%% - we define fillcyclex as previous fillcycle parameter, and add the
+%% fillcycley and fillcycle (both fillcyclex and fillcycley) ones
+%% - we can extend the tiling area using fillloopaddx, fillloopaddy and
+%% fillloopadd parameters,
+%% - we can debug and see the whole tiling area without clipping using
+%% PstDebug parameter,
+%% - for names consistancy, we can use fillangle in place of boxfillangle
+%% and fillsize in place of boxfillsize,
+%% - default value for fillsep is 0 and for fillsize is auto.
+
+% Preliminaries:
+
+\csname PSTboxfillLoaded\endcsname
+\let\PSTboxfillLoaded\endinput
+
+\ifx\PSTricksLoaded\endinput\else
+ \def\next{\input pstricks.tex}
+ \expandafter\next
+\fi
+
+\def\fileversion{97 patch 4}
+\def\filedate{2004/08/18}
+\message{ v\fileversion, \filedate}
+
+\edef\TheAtCode{\the\catcode`\@}
+\catcode`\@=11
+
+% The box:
+
+\newbox\pst@fillbox
+\def\psboxfill{\pst@killglue\pst@makebox\psboxfill@i}
+\def\psboxfill@i{\setbox\pst@fillbox\box\pst@hbox\ignorespaces}
+
+% Parameters:
+
+\def\psset@boxfillsize#1{%
+ \def\pst@tempg{#1}\def\pst@temph{auto}%
+ \ifx\pst@tempg\pst@temph
+ \let\psk@boxfillsize\relax
+ \else
+ \psset@@boxfillsize#1(\z@,\z@)\@empty(\z@,\z@)(\@nil
+ \fi}
+\def\psset@@boxfillsize#1(#2,#3)#4(#5,#6)#7(#8\@nil{%
+ \begingroup
+ \ifx\@empty#7\relax
+ \pst@dima\z@
+ \pst@dimb\z@
+ \pssetxlength\pst@dimc{#2}%
+ \pssetylength\pst@dimd{#3}%
+ \else
+ \pssetxlength\pst@dima{#2}%
+ \pssetylength\pst@dimb{#3}%
+ \pssetxlength\pst@dimc{#5}%
+ \pssetylength\pst@dimd{#6}%
+ \fi
+ \xdef\pst@tempg{%
+ \pst@dima=\number\pst@dima sp
+ \pst@dimb=\number\pst@dimb sp
+ \pst@dimc=\number\pst@dimc sp
+ \pst@dimd=\number\pst@dimd sp }%
+ \endgroup
+ \let\psk@boxfillsize\pst@tempg}
+
+\psset{boxfillsize={(-15cm,-15cm)(15cm,15cm)}}
+
+\def\psset@boxfillcolor#1{\pst@getcolor{#1}\psboxfillcolor}
+%\def\psboxfillcolor{\black}
+\psset@boxfillcolor{black}% hv
+
+\def\psset@boxfillangle#1{\pst@getangle{#1}\psk@boxfillangle}
+\psset@boxfillangle{0}
+
+\def\psset@fillsepx#1{\pst@getlength{#1}\psk@fillsepx}
+\def\psset@fillsepy#1{\pst@getlength{#1}\psk@fillsepy}
+\def\psset@fillsep#1{\psset@fillsepx{#1}\let\psk@fillsepy\psk@fillsepx}
+\psset@fillsep{2pt}
+
+% DG addition begin - Apr. 8, 1997 and Nov. 1997 - Patch 2
+\ifx\PstTiling\@undefined
+ \def\psset@fillcycle#1{\pst@getint{#1}\psk@fillcycle}
+ \psset@fillcycle{0}
+\else
+% For consistancy, use "fill" as prefix for angle and size
+ \def\psset@fillangle#1{\psset@boxfillangle{#1}}
+ \def\psset@fillsize#1{\psset{boxfillsize={#1}}}
+% Change some default values with better ones for tilings
+ \psset@fillsep{0}
+ \psset{fillsize=auto}
+% Define fillcyclex (previously fillcycle), fillcycley and fillcycle for both
+ \def\psset@fillcyclex#1{\pst@getint{#1}\psk@fillcyclex}
+ \def\psset@fillcycley#1{\pst@getint{#1}\psk@fillcycley}
+ \def\psset@fillcycle#1{%
+ \psset@fillcyclex{#1}\let\psk@fillcycley\psk@fillcyclex}
+ \psset@fillcycle{0}
+% Define fillmove, fillmovex and fillmovey parameters
+ \def\psset@fillmovex#1{\pst@getlength{#1}\psk@fillmovex}
+ \def\psset@fillmovey#1{\pst@getlength{#1}\psk@fillmovey}
+ \def\psset@fillmove#1{\psset@fillmovex{#1}\psset@fillmovey{#1}}
+ \psset@fillmove{0pt}
+% Define fillloopaddx, fillloopaddy and fillloopadd parameters
+% if tiling is not complete
+ \def\psset@fillloopaddx#1{\pst@getint{#1}\psk@fillloopaddx}
+ \def\psset@fillloopaddy#1{\pst@getint{#1}\psk@fillloopaddy}
+ \def\psset@fillloopadd#1{%
+ \psset@fillloopaddx{#1}\let\psk@fillloopaddy\psk@fillloopaddx}
+ \psset@fillloopadd{0}
+% For debugging (to debug, set PstDebug=1)
+% we now use the one from pstricks to prevent a clash with package
+% pst-gr3d 2004-06-22
+% \def\psset@PstDebug#1{\pst@getint{#1}\psk@PstDebug}
+ \psset@PstDebug{0}
+\fi
+% DG addition end
+
+% Main macro:
+
+\def\psfs@boxfill{%
+ \ifvoid\pst@fillbox
+ \@pstrickserr{Fill box is empty. Use \string\psboxfill\space first.}\@ehpa
+ \else
+ \ifx\psk@boxfillsize\relax
+ \pst@AutoBoxFill
+ \else
+ \pst@ManualBoxFill
+ \fi
+ \fi}
+
+% Manual box fill:
+
+\def\pst@ManualBoxFill{%
+ \leavevmode
+ \begingroup
+ \pst@FlushCode
+ \begin@psclip
+ \pstVerb{clip}%
+ \expandafter\pst@AddFillBox\psk@boxfillsize
+ \end@psclip
+ \endgroup}
+
+\def\pst@FlushCode{%
+ \pst@Verb{%
+ /mtrxc CM def
+ CP CP T
+ \tx@STV
+ \psk@origin
+ \psk@swapaxes
+ \pst@newpath
+ \pst@code
+ mtrxc setmatrix
+ moveto
+ 0 setgray}%
+ \gdef\pst@code{}}
+
+\def\pst@AddFillBox#1 #2 #3 #4 {%
+ \begingroup
+ \setbox\pst@fillbox=\vbox{%
+ \hbox{\unhcopy\pst@fillbox\kern\psk@fillsepx\p@}%
+ \vskip\psk@fillsepy\p@}%
+ \psk@boxfillsize
+ \pst@cnta=\pst@dimc
+ \advance\pst@cnta-\pst@dima
+ \divide\pst@cnta\wd\pst@fillbox
+ \pst@cntb=\pst@dimd
+ \advance\pst@cntb-\pst@dimb
+ \pst@dimd=\ht\pst@fillbox
+ \divide\pst@cntb\pst@dimd
+ \def\pst@tempa{%
+ \pst@tempg
+ \copy\pst@fillbox
+ \advance\pst@cntc\@ne
+ \ifnum\pst@cntc<\pst@cntd\expandafter\pst@tempa\fi}%
+ \let\pst@tempg\relax
+ \pst@cntc-\tw@
+ \pst@cntd\pst@cnta
+ \setbox\pst@fillbox=\hbox to \z@{%
+ \kern\pst@dima
+ \kern-\wd\pst@fillbox
+ \pst@tempa
+ \hss}%
+ \pst@cntd\pst@cntb
+% DG modification begin - Dec. 11, 1997 - Patch 2
+ \ifx\PstTiling\@undefined
+ \ifnum\psk@fillcycle=\z@\pst@ManualFillCycle\fi
+ \else
+ \ifnum\psk@fillcyclex=\z@\pst@ManualFillCycle\fi
+ \fi
+% DG modification end
+ \global\setbox\pst@boxg=\vbox to\z@{%
+ \offinterlineskip
+ \vss
+ \pst@tempa
+ \vskip\pst@dimb}%
+ \endgroup
+ \setbox\pst@fillbox\box\pst@boxg
+ \pst@rotate\psk@boxfillangle\pst@fillbox
+ \box\pst@fillbox}
+
+\def\pst@ManualFillCycle{%
+% DG modification begin - Dec. 11, 1997 - Patch 2
+ \ifx\PstTiling\@undefined
+ \pst@cntg=\psk@fillcycle
+ \else
+ \pst@cntg=\psk@fillcyclex
+ \fi
+% DG modification end
+ \pst@dimg=\wd\pst@fillbox
+% DG modification begin - Mar. 20, 1997 - Patch 1 (to avoid division by 0)
+% \divide\pst@dimg\pst@cntg
+ \ifnum\pst@cntg=\z@
+ \else
+ \divide\pst@dimg\pst@cntg
+ \fi
+% DG modification end
+ \ifnum\pst@cntg<\z@\pst@cntg=-\pst@cntg\fi
+ \advance\pst@cntg\m@ne
+ \pst@cnth=\pst@cntg
+ \def\pst@tempg{%
+ \ifnum\pst@cnth<\pst@cntg\advance\pst@cnth\@ne\else\pst@cnth\z@\fi
+ \moveright\pst@cnth\pst@dimg}}
+
+% Auto box fill: !! Fix dictionary
+
+% DG addition begin - Apr. 8, 1997 and Dec. 1997 - Patch 2
+\ifx\PstTiling\@undefined
+% DG addition end
+% Original version
+\pst@def{AutoFillCycle}<%
+ /c ED
+ /n 0 def
+ /s {
+ /x x w c div n mul add def
+ /n n c abs 1 sub lt { n 1 add } { 0 } ifelse def
+ } def>
+
+\pst@def{BoxFill}<%
+ gsave
+ gsave \tx@STV CM grestore dtransform CM idtransform
+ abs /h ED abs /w ED
+ pathbbox
+ h div round 2 add cvi /y2 ED
+ w div round 2 add cvi /x2 ED
+ h div round 2 sub cvi /y1 ED
+ w div round 2 sub cvi /x1 ED
+ /y2 y2 y1 sub def
+ /x2 x2 x1 sub def
+ CP
+ y1 h mul sub neg /y1 ED
+ x1 w mul sub neg /x1 ED
+ clip
+ y2 {
+ /x x1 def
+ s
+ x2 {
+ save CP x y1
+% patch 4 hv --------------
+ \ifx\VTeXversion\undefined
+ \else
+%============ mv: 09-10-01 ??? this is likely to be a right change
+ neg
+%============
+ \fi
+% end patch 4
+ T moveto Box restore
+ /x x w add def
+ } repeat
+ /y1 y1 h add def
+ } repeat
+ % Next line not useful... To see that, suppress clipping (DG)
+ CP x y1 T moveto Box
+ currentpoint currentfont grestore setfont moveto>
+\else
+% DG modification begin - Apr. 8, 1997 and Nov. / Dec. 1997 - Patch 2
+\pst@def{AutoFillCycleX}<%
+ /cX ED
+ /nX 0 def
+ /CycleX {
+ /x x w cX div nX mul add def
+ /nX nX cX abs 1 sub lt { nX 1 add } { 0 } ifelse def
+ } def>
+\pst@def{AutoFillCycleY}<%
+ /cY ED
+ /mY 0 def
+ /nY 0 def
+ /CycleY {
+ /y1 y1 h cY div mY mul sub def
+ nY cY abs 1 sub lt { /nY nY 1 add def /mY 1 def }
+ { /nY 0 def /mY cY abs 1 sub neg def } ifelse
+ } def>
+
+\pst@def{BoxFill}<%
+ gsave
+ gsave \tx@STV CM grestore dtransform CM idtransform
+ abs /h ED abs /w ED
+ pathbbox
+ h div round 2 add cvi /y2 ED
+ w div round 2 add cvi /x2 ED
+ h div round 2 sub cvi /y1 ED
+ w div round 2 sub cvi /x1 ED
+% We must enlarge the area if fillangle, fillcycle, fillmove or fillsep are used
+ /CoefLoopX 0 def
+ /CoefLoopY 0 def
+ /CoefMoveX 0 def
+ /CoefMoveY 0 def
+ \psk@boxfillangle 0 ne {/CoefLoopX 8 def /CoefLoopY 8 def} if
+ \psk@fillcyclex 0 ne {/CoefLoopX CoefLoopX 1 add def} if
+ \psk@fillcycley 0 ne {/CoefLoopY CoefLoopY 1 add def} if
+ \psk@fillmovex 0 ne
+ {/CoefLoopX CoefLoopX 2 add def
+ \psk@fillmovex 0 gt {/CoefMoveX CoefLoopX def}
+ {/CoefMoveX CoefLoopX neg def} ifelse} if
+ \psk@fillmovey 0 ne
+ {/CoefLoopY CoefLoopY 2 add def
+ \psk@fillmovey 0 gt {/CoefMoveY CoefLoopY def}
+ {/CoefMoveY CoefLoopY neg def} ifelse} if
+ \psk@fillsepx 0 ne {/CoefLoopX CoefLoopX 1 add def} if
+ \psk@fillsepy 0 ne {/CoefLoopY CoefLoopY 1 add def} if
+ /CoefLoopX CoefLoopX \psk@fillloopaddx add def
+ /CoefLoopY CoefLoopY \psk@fillloopaddy add def
+%
+ /x2 x2 x1 sub 4 sub CoefLoopX 2 mul add def
+ /y2 y2 y1 sub 4 sub CoefLoopY 2 mul add def
+% We must fix the origin of tiling, as it must not vary according other stuff
+% in the page!
+ w x1 CoefLoopX add CoefMoveX add mul
+ h y1 y2 add 1 sub CoefLoopY sub CoefMoveY sub mul moveto
+%
+ CP
+ y1 h mul sub neg /y1 ED
+ x1 w mul sub neg /x1 ED
+% hv 2004-06-22 to prevent clash with pst-gr3d
+% \psk@PstDebug 0 eq {clip} if
+ \Pst@Debug 0 eq {clip} if
+% end hv
+ \psk@fillmovex \psk@fillmovey
+ gsave \tx@STV CM grestore dtransform CM idtransform
+ /hmove ED /wmove ED
+%
+ /row 0 def
+ y2 {
+ /row row 1 add def
+ /column 0 def
+ /x x1 def
+ CycleX
+ save
+ x2 {
+ /column column 1 add def
+ CycleY
+ save CP x y1
+% patch 4 hv --------------
+ \ifx\VTeXversion\undefined
+ \else
+%============ mv: 09-10-01 ??? this is likely to be a right change
+ neg
+%============
+ \fi
+% end patch 4
+ T moveto Box restore
+ /x x w add def
+ 0 hmove translate
+ } repeat
+ restore
+ /y1 y1 h add def
+ wmove 0 translate
+ } repeat
+ currentpoint currentfont grestore setfont moveto>
+\fi
+% DG modification end
+
+\def\pst@AutoBoxFill{%
+ \leavevmode
+ \begingroup
+% DG addition begin - Dec. 2, 1997 - Patch 2
+ \pst@stroke
+% DG addition end
+ \pst@FlushCode
+ \pst@Verb{\psk@boxfillangle \tx@RotBegin}%
+ \pstVerb{\pst@dict /Box \pslbrace end}%
+% DG addition begin - Apr. 8, 1997 and Nov. 5, 1997 - Patch 2
+% Useful when the starting point is not (0,0)
+ \ifx\PstTiling\@undefined
+ \else
+ \ifx\pst@tempa\@undefined % Undefined for instance for \pscharpath
+ \else
+ \def\pst@temph{0}%
+ \ifx\pst@tempa\pst@temph
+ \else
+ \pstVerb{/TR {pop pop currentpoint translate \pst@tempa\space translate } def}%
+ \fi
+ \fi
+ \fi
+% DG addition end
+ \hbox to \z@{\vbox to\z@{\vss\copy\pst@fillbox\vskip-\dp\pst@fillbox}\hss}%
+% DG addition begin - Dec. 8, 1997 - Patch 2
+ \ifx\PstTiling\@undefined
+% DG addition end
+ \pstVerb{%
+ tx@Dict begin \psrbrace def
+ \ifnum\psk@fillcycle=\z@
+ /s {} def
+ \else
+ \psk@fillcycle \tx@AutoFillCycle
+ \fi
+ \pst@number{\wd\pst@fillbox}%
+ \psk@fillsepx add
+ \pst@number{\ht\pst@fillbox}%
+ \pst@number{\dp\pst@fillbox}%
+ \psk@fillsepy add add
+ \tx@BoxFill
+ end}%
+% DG modification begin - Dec. 8, 1997 - Patch 2
+ \else
+ \pstVerb{%
+ tx@Dict begin \psrbrace def
+ \ifnum\psk@fillcyclex=\z@
+ /CycleX {} def
+ \else
+ \psk@fillcyclex \tx@AutoFillCycleX
+ \fi
+ \ifnum\psk@fillcycley=\z@
+ /CycleY {} def
+ \else
+ \psk@fillcycley \tx@AutoFillCycleY
+ \fi
+ \pst@number{\wd\pst@fillbox}%
+ \psk@fillsepx add
+ \pst@number{\ht\pst@fillbox}%
+ \pst@number{\dp\pst@fillbox}%
+ \psk@fillsepy add add
+ \tx@BoxFill
+ end}%
+ \fi
+% DG modification end
+ \pst@Verb{\tx@RotEnd}%
+ \endgroup}
+
+\catcode`\@=\TheAtCode\relax
+
+\endinput
+%%
+%% END pst-fill.tex