%%
%% This is file `xcolor2.tex',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% xcolor.dtx  (with options: `test2')
%% 
%% IMPORTANT NOTICE:
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%% For the copyright see the source file.
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%% Any modified versions of this file must be renamed
%% with new filenames distinct from xcolor2.tex.
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%% for copying and modification in the file xcolor.dtx.
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%% original source files, as listed above, are part of the
%% same distribution. (The sources need not necessarily be
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\ProvidesFile{xcolor2}
 [2023/11/15 v3.01 Pstricks color test (UK)]
%%
%% ----------------------------------------------------------------
%% Copyright (C) 2003-2021 by Dr. Uwe Kern <xcolor at ukern dot de>
%%               2021-2023    LaTeX Project https://github.com/latex3/xcolor/issues
%% ----------------------------------------------------------------
%%
\def\XCfileversion{v3.01}%
\def\XCfiledate{2023/11/15}%

\listfiles
\documentclass{article}

\usepackage{pstricks,pst-tree,pst-slpe,multido}
\makeatletter
\makeatother
\usepackage{fancyvrb-ex}

\def\textfraction{0.01}
\def\topfraction{0.99}
\def\bottomfraction{0.99}
\def\floatpagefraction{0.70}
\setlength\abovecaptionskip{12pt}
\setlength\belowcaptionskip{10pt}
\parindent0pt

\begin{document}
\title{Color extensions with the \textsf{xcolor} package --- \textsf{pstricks} examples}
\author{Dr. Uwe Kern\thanks{This file is part of the \textsf{xcolor} distribution which can be downloaded from the CTAN mirrors (\texttt{macros/latex/contrib/xcolor/}) or the homepage \texttt{www.ukern.de/tex/xcolor.html}. Please send error reports and suggestions for improvements to \texttt{https://github.com/latex3/xcolor/issues}.}}
\date{\XCfileversion{} (\XCfiledate)}
\maketitle

\centerline{\fcolorbox{red}{yellow!50}{This document is not suitable for pdf\LaTeX! Please use \LaTeX{} + \texttt{dvips} etc.}}

\begin{figure}[htb]\caption{Modified version of an example from the \textsf{pstricks} manual; requires \textsf{pst-tree}}
\begin{SideBySideExample}[fontsize=\footnotesize,xrightmargin=.45\textwidth]
  \begin{pspicture}(-0.5,-2)(3,2)
  \cnode(0,0){.5cm}{root}
  \cnode*[linecolor=red](3,1.5){4pt}{A}
  \cnode*[linecolor=red!72.5375!blue](3,0){4pt}{B}
  \cnode*[linecolor=-red](3,-1.5){4pt}{C}
  \psset{nodesep=3pt}
  \ncline[linecolor=green!50!red]{root}{A}
  \ncline[linecolor=blue]{root}{B}
  \ncline[linecolor=-green!50!red]{root}{C}
  \end{pspicture}
\end{SideBySideExample}
\end{figure}

\begin{figure}[htb]\caption{Moving from one color to its complement; requires \textsf{pst-slpe}}
\begin{SideBySideExample}[fontsize=\footnotesize,xrightmargin=.45\textwidth]
  \begin{pspicture}(4,1)
  \psframe[fillstyle=slope,
           slopeangle=30,
           slopebegin=red!72.5375!blue,
           slopeend=-red!72.5375!blue](4,1)
  \end{pspicture}
\end{SideBySideExample}
\end{figure}

\begin{figure}[htb]\caption{Explicit color specification via a loop command; requires \textsf{multido}}
\begin{SideBySideExample}[fontsize=\footnotesize,xrightmargin=.45\textwidth]
  \psset{unit=1.75}%
  \begin{pspicture}(0,-1)(2,1)
  \multido{\rHue=0.00+0.01}{100}%
   {\pscircle[linewidth=0.01,
              linecolor={[hsb]{\rHue,1,1}}](1,0){\rHue}}
  \end{pspicture}
\end{SideBySideExample}
\end{figure}

\begin{figure}[htb]\caption{Color series --- modified version of an example from the \textsf{pst-fill} manual; note that the \texttt{\string\multirput} command does not give the desired result here}
\begin{SideBySideExample}[fontsize=\footnotesize,xrightmargin=.45\textwidth]
  \newcommand*\Sheep
   {\begin{pspicture}(3,1.5)
    \pscustom[liftpen=2,fillstyle=solid,fillcolor=sheep!!+]%
     {\pscurve(0.5,-0.2)(0.6,0.5)(0.2,1.3)(0,1.5)(0,1.5)
       (0.4,1.3)(0.8,1.5)(2.2,1.9)(3,1.5)(3,1.5)(3.2,1.3)
       (3.6,0.5)(3.4,-0.3)(3,0)(2.2,0.4)(0.5,-0.2)}
    \pscircle*(2.65,1.25){0.12\psunit}% Eye
    \psccurve*(3.5,0.3)(3.35,0.45)(3.5,0.6)(3.6,0.4)% Muzzle
    \pscurve(3,0.35)(3.3,0.1)(3.6,0.05)% Mouth
    \pscurve(2.3,1.3)(2.1,1.5)(2.15,1.7)
    \pscurve(2.1,1.7)(2.35,1.6)(2.45,1.4)% Ear
    \end{pspicture}}
  \definecolorseries
   {sheep}{rgb}{step}[rgb]{.95,.85,.55}{.17,.47,.37}
  \resetcolorseries{sheep}
  \psset{unit=0.4}
  \begin{pspicture}(-3,-6)(0,7.5)
  \Multido{\ry=6.0+-1.5}{5}%
   {\rput(0,\ry){\Multido{}{5}{\Sheep}}}
  \resetcolorseries{sheep}%
  \multirput(-6,-6)(3,0)5{\Sheep}
  \end{pspicture}
\end{SideBySideExample}
\end{figure}

\begin{figure}[htb]\caption{Interaction with native PostScript code --- $\gamma$-corrected wavelengths}
\begin{Example}[fontsize=\footnotesize,xrightmargin=.45\textwidth]
  \newcount\WL \unitlength.75pt
  \def\WaveToPS#1%
   {\definecolor{tmp}{rgb:wave}{#1}\extractcolorspecs{tmp}\tmpm\tmpc
    \expandafter\WaveToPSi\tmpc,}
  \def\WaveToPSi#1,#2,#3,{\pstVerb{/Red{#1}def /Green{#2}def /Blue{#3}def}}
  \def\DisplayBar#1#2%
   {\linethickness{1.25\unitlength}\WL=360
    \pstVerb{/Gamma{#1}def}%
    \multiput(360,#2)(1,0){456}%
     {\WaveToPS{\the\WL}{\color{lambda}\line(0,1){50}}\global\advance\WL1}%
    \linethickness{0.25\unitlength}\WL=360
    \multiput(360,#2)(20,0){23}%
     {\picture(0,0)
      \line(0,-1){5}\multiput(5,0)(5,0){3}{\line(0,-1){2.5}}%
      \put(0,-10){\makebox(0,0){\the\WL}}\global\advance\WL20
      \endpicture}%
    \put(350,#2){\makebox(0,50)[r]{\small$\gamma$\,=\,#1}}}
  \pstVerb{/Corr{dup 0 gt {Gamma exp}if}def}
  \definecolor[ps]{lambda}{rgb}{Red Corr Green Corr Blue Corr}%
  \begin{picture}(510,345)(310,-10)
  \sffamily\tiny
  \DisplayBar{0.4}{0}%
  \DisplayBar{0.6}{70}%
  \DisplayBar{0.8}{140}%
  \DisplayBar{1.0}{210}%
  \DisplayBar{1.2}{280}%
  \end{picture}
\end{Example}
\end{figure}

\end{document}
\endinput
%%
%% End of file `xcolor2.tex'.
