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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%                                                                   %%
%% This is file `pst-marble.tex'                                     %%
%%                                                                   %%
%% IMPORTANT NOTICE:                                                 %%
%%                                                                   %%
%% Package `pst-marble'                                              %%
%%                                                                   %%
%% Aubrey Jaffer, with help of Manuel Luque, Jürgen Gilg             %%
%% Email address: agj@alum.mit.edu                                   %%
%% Copyright (C) 2018-2019  Aubrey Jaffer                            %%
%%                                                                   %%
%% This program can redistributed and/or modified under              %%
%% the terms of the LaTeX Project Public License                     %%
%% Distributed from CTAN archives in directory                       %%
%% macros/latex/base/lppl.txt; either version 1.3c of                %%
%% the License, or (at your option) any later version.               %%
%%                                                                   %%
%% DESCRIPTION:                                                      %%
%%   `pst-marble' is a PSTricks package to draw marble-like patterns %%
%%                                                                   %%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\csname PSTMARBLELoaded\endcsname
\let \PSTMARBLELoaded\endinput
\ifx\PSTricksLoaded\endinput\else\input pstricks.tex\fi
\ifx\PSTXKeyLoaded\endinput \else\input pst-xkey.tex\fi
\def\fileversion{1.2}
\def\filedate{2019/02/01}
\message{`PST' v\fileversion, \filedate}
%
\pstheader{pst-marble.pro}
%
\edef\PstAtCode{\the\catcode`\@} \catcode`\@=11\relax
\pst@addfams{pst-marble}
\define@key[psset]{pst-marble}{background}{\def\pst@marble@background{#1 }}
\define@key[psset]{pst-marble}{viscosity}{\def\pst@marble@visc{#1 }}
\define@key[psset]{pst-marble}{seed}{\def\pst@marble@seed{#1}}
\define@key[psset]{pst-marble}{actions}{\def\pst@marble@actions{#1 }}
% colors are red, green, and blue components between 0 and 1.
\define@key[psset]{pst-marble}{colors}{\def\pst@marble@colors{#1 }}
\define@boolkey[psset]{pst-marble}[Pst@]{drawcontours}[true]{}
\define@boolkey[psset]{pst-marble}[Pst@]{bckg}[true]{}
\psset[pst-marble]{
    seed={Mathematical Marbling},
    background={
      [1 1 1]
    },
    colors={
      [0.275 0.569 0.796]
      [0.965 0.882 0.302]
      [0.176 0.353 0.129]
      [0.635 0.008 0.094]
      [0.078 0.165 0.518]
      [0.824 0.592 0.031]
      [0.059 0.522 0.392]
      [0.816 0.333 0.475]
      [0.365 0.153 0.435]
      [0.624 0.588 0.439]
    },
    viscosity=1000,
    actions={0 0 35 colors 35 concentric-rings},
    drawcontours=false,
    bckg=true
    }%
\def\psMarble{\def\pst@par{}\pst@object{psMarble}}
\def\psMarble@i{\@ifnextchar({\psMarble@ii}{\psMarble@ii(10,10)}}
\def\psMarble@ii(#1,#2){%
\begin@SpecialObj
\addto@pscode{%
plotdict begin
/STROKE    {\pst@number\pslinewidth 1000 div SLW systemdict /stroke get exec } def
/cm {\pst@number\psunit mul } bind def
/background \pst@marble@background color-norm def
/colors [\pst@marble@colors] def
/seed (\pst@marble@seed) rc4setkey def
/pagewidth #1 cm def % en cm
/pageheight #2 cm def % en cm
/loy pageheight -2 div def
/hiy pageheight 2 div def
/hix pagewidth 2 div def
/lox pagewidth -2 div def
/orgx hix lox add 2 div def
/orgy hiy loy add 2 div def
% orgx orgy translate
/actions [\pst@marble@actions] def
/acnt actions length def
\ifPst@drawcontours /Contours {STROKE} def \else /Contours {fill} def \fi
gsave
\ifPst@bckg
    background aload pop setrgbcolor
    lox loy pagewidth pageheight rectfill
\fi
    lox loy pagewidth pageheight rectclip
     \pst@marble@visc marble
grestore
end}% fin du code ps
\end@SpecialObj}% % fin de la commande PSTricks
\catcode`\@=\PstAtCode\relax
\endinput