%%
%% This is file `asymptote.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% asy-latex.dtx  (with options: `pkg')
%% ____________________________
%% The ASYMPTOTE package
%% 
%% (C) 2003 Tom Prince
%% (C) 2003-2010 John Bowman
%% (C) 2010 Will Robertson
%% 
%% Adapted from comment.sty
%% 
%% Licence: GPL2+
%% 
\ProvidesPackage{asymptote}
  [2011/05/15 v1.24 Asymptote style file for LaTeX]
\def\Asymptote{{\tt Asymptote}}
\InputIfFileExists{\jobname.pre}{}{}
\newbox\ASYbox
\newcounter{asy}
\newwrite\AsyStream
\newwrite\AsyPreStream
\newif\ifASYinline
\newif\ifASYattach
\newif\ifASYkeepAspect
\ASYkeepAspecttrue
\RequirePackage{keyval}
\RequirePackage{ifthen}
\RequirePackage{color,graphicx}
\IfFileExists{ifpdf.sty}{
  \RequirePackage{ifpdf}
}{
  \expandafter\newif\csname ifpdf\endcsname
  \ifx\pdfoutput\@undefined\else
    \ifcase\pdfoutput\else
      \pdftrue
    \fi
  \fi
}
\IfFileExists{ifxetex.sty}{
  \RequirePackage{ifxetex}
}{
  \expandafter\newif\csname ifxetex\endcsname
  \ifx\XeTeXversion\@undefined\else
    \xetextrue
  \fi
}
\IfFileExists{catchfile.sty}{
  \RequirePackage{catchfile}
}{
  \newcommand\CatchFileDef[3]{%
    \begingroup
    \everyeof{%
      \ENDCATCHFILEMARKER
      \noexpand
    }%
    \long\def\@tempa##1\ENDCATCHFILEMARKER{%
      \endgroup
      \def#1{##1}%
    }%
    #3%
    \expandafter\@tempa\@@input #2\relax
  }
}
\newif\if@asy@attachfile@loaded
\AtBeginDocument{%
  \@ifpackageloaded{attachfile2}{\@asy@attachfile@loadedtrue}{}%
  \let\asy@check@attachfile\asy@check@attachfile@loaded
}
\newcommand\asy@check@attachfile@loaded{%
  \if@asy@attachfile@loaded\else
    \PackageError{asymptote}{You must load the attachfile2 package}{^^J%
      You have requested the [attach] option for some or all of your^^J%
      Asymptote graphics, which requires the attachfile2 package.^^J%
      Please load it in the document preamble.^^J%
    }%
  \fi
}
\newcommand\asy@check@attachfile{%
  \AtBeginDocument{\asy@check@attachfile@loaded}%
  \let\asy@check@attachfile\@empty
}
\def\csarg#1#2{\expandafter#1\csname#2\endcsname}
\DeclareOption{inline}{%
  \ASYinlinetrue
}
\DeclareOption{attach}{%
  \asy@check@attachfile
  \ASYattachtrue
}
\ProcessOptions*
\def\asydir{}
\def\ASYprefix{}
\newif\ifASYPDF
\ifxetex
  \ASYPDFtrue
\else
  \ifpdf
    \ASYPDFtrue
  \fi
\fi
\ifASYPDF
  \def\AsyExtension{pdf}
\else
  \def\AsyExtension{eps}
\fi
\def\unquoteJobname#1"#2"#3\relax{%
  \def\rawJobname{#1}%
  \ifx\rawJobname\empty
    \def\rawJobname{#2}%
  \fi
}
\expandafter\unquoteJobname\jobname""\relax
\def\fixstar#1*#2\relax{%
  \def\argtwo{#2}%
  \ifx\argtwo\empty
    \gdef\Jobname{#1}%
  \else
    \fixstar#1-#2\relax
  \fi
}
\expandafter\fixstar\rawJobname*\relax
\def\Ginclude@eps#1{%
  \message{<#1>}%
  \bgroup
  \def\@tempa{!}%
  \dimen@\Gin@req@width
  \dimen@ii.1bp\relax
  \divide\dimen@\dimen@ii
  \@tempdima\Gin@req@height
  \divide\@tempdima\dimen@ii
    \special{PSfile=#1\space
      llx=\Gin@llx\space
      lly=\Gin@lly\space
      urx=\Gin@urx\space
      ury=\Gin@ury\space
      \ifx\Gin@scalex\@tempa\else rwi=\number\dimen@\space\fi
      \ifx\Gin@scaley\@tempa\else rhi=\number\@tempdima\space\fi
      \ifGin@clip clip\fi}%
  \egroup
}
\immediate\openout\AsyPreStream=\jobname.pre\relax
\AtEndDocument{\immediate\closeout\AsyPreStream}
\def\WriteAsyLine#1{%
  \immediate\write\AsyStream{\detokenize{#1}}%
}
\def\globalASYdefs{}
\def\WriteGlobalAsyLine#1{%
  \expandafter\g@addto@macro
  \expandafter\globalASYdefs
  \expandafter{\detokenize{#1^^J}}%
}
\def\ProcessAsymptote#1{%
  \begingroup
  \def\CurrentAsymptote{#1}%
  \let\do\@makeother \dospecials
  \@makeother\^^L% and whatever other special cases
  \catcode`\ =10
  \endlinechar`\^^M \catcode`\^^M=12 \xAsymptote
}
\begingroup
  \catcode`\^^M=12 \endlinechar=-1\relax%
  \gdef\xAsymptote{%
    \expandafter\ProcessAsymptoteLine%
  }
  \gdef\ProcessAsymptoteLine#1^^M{%
    \def\@tempa{#1}%
    {%
      \escapechar=-1\relax%
      \xdef\@tempb{\string\\end\string\{\CurrentAsymptote\string\}}%
    }%
    \ifx\@tempa\@tempb%
      \edef\next{\endgroup\noexpand\end{\CurrentAsymptote}}%
    \else%
      \ThisAsymptote{#1}%
      \let\next\ProcessAsymptoteLine%
    \fi%
    \next%
  }
\endgroup
\newcommand\asy[1][]{%
  \stepcounter{asy}%
  \setkeys{ASYkeys}{#1}%
  \ifASYattach
    \ASYinlinefalse
  \fi
  \ifx\asydir\empty\else
    \def\ASYprefix{\asydir/}%
  \fi
  \immediate\write\AsyPreStream{%
    \noexpand\InputIfFileExists{%
      \ASYprefix\noexpand\jobname-\the\c@asy.pre}{}{}%
  }
  \asy@write@graphic@header
  \let\ThisAsymptote\WriteAsyLine
  \ProcessAsymptote{asy}%
}
\def\endasy{%
  \asy@finalise@stream
  \asy@input@graphic
}
\def\asy@write@graphic@header{%
  \immediate\openout\AsyStream=\ASYprefix\jobname-\the\c@asy.asy\relax
  \gdef\AsyFile{\ASYprefix\Jobname-\the\c@asy}%
  \immediate\write\AsyStream{%
    if(!settings.multipleView) settings.batchView=false;^^J%
    \ifxetex
      settings.tex="xelatex";^^J%
    \else\ifASYPDF
        settings.tex="pdflatex";^^J%
    \fi\fi
    \ifASYinline
      settings.inlinetex=true;^^J%
      deletepreamble();^^J%
    \fi
    defaultfilename="\Jobname-\the\c@asy";^^J%
    if(settings.render < 0) settings.render=4;^^J%
    settings.outformat="";^^J%
    \ifASYattach
      settings.inlineimage=false;^^J%
      settings.embed=false;^^J%
      settings.toolbar=true;^^J%
    \else
      settings.inlineimage=true;^^J%
      settings.embed=true;^^J%
      settings.toolbar=false;^^J%
      viewportmargin=(2,2);^^J%
    \fi
    \globalASYdefs
  }%
}
\def\asy@expand@keepAspect{%
  \ifASYkeepAspect keepAspect=true%
  \else keepAspect=false%
  \fi%
}
\def\asy@finalise@stream{%
  \ifx\ASYwidth\@empty
    \ifx\ASYheight\@empty
      % write nothing!
    \else
      \immediate\write\AsyStream{size(0,\ASYheight,\asy@expand@keepAspect);}%
    \fi
  \else
    \ifx\ASYheight\@empty
      \immediate\write\AsyStream{size(\ASYwidth,0,\asy@expand@keepAspect);}%
    \else
      \immediate\write\AsyStream{size(\ASYwidth,\ASYheight,\asy@expand@keepAspect);}%
    \fi
  \fi
  \edef\ASYviewportwidth{\ASYviewportwidth}% locally "freeze" viewportwidth
  \ifx\ASYviewportwidth\@empty
    \ifx\ASYviewportheight\@empty
      % write nothing!
    \else
      \immediate\write\AsyStream{viewportsize=(0,\ASYviewportheight);}%
    \fi
  \else
    \ifx\ASYviewportheight\@empty
      \immediate\write\AsyStream{viewportsize=(\ASYviewportwidth,0);}%
    \else
      \immediate\write\AsyStream{%
        viewportsize=(\ASYviewportwidth,\ASYviewportheight);}%
    \fi
  \fi
  \immediate\closeout\AsyStream
}
\def\asy@input@graphic{%
  \ifASYinline
    \IfFileExists{"\AsyFile.tex"}{%
      \catcode`:=12\relax
      \@@input"\AsyFile.tex"\relax
    }{%
      \PackageWarning{asymptote}{file `\AsyFile.tex' not found}%
    }%
  \else
    \IfFileExists{"\AsyFile.\AsyExtension"}{%
      \ifASYattach
        \ifASYPDF
          \IfFileExists{"\AsyFile+0.pdf"}{%
            \setbox\ASYbox=\hbox{\includegraphics[hiresbb]{"\AsyFile+0".pdf}}%
          }{%
            \setbox\ASYbox=\hbox{\includegraphics[hiresbb]{"\AsyFile".pdf}}%
          }%
        \else
          \setbox\ASYbox=\hbox{\includegraphics[hiresbb]{"\AsyFile.eps"}}%
        \fi
        \textattachfile{\AsyFile.\AsyExtension}{\phantom{\copy\ASYbox}}%
        \vskip-\ht\ASYbox
        \indent
        \box\ASYbox
      \else
        \ifASYPDF
          \includegraphics[hiresbb]{"\AsyFile".pdf}%
        \else
          \includegraphics[hiresbb]{"\AsyFile.eps"}%
        \fi
      \fi
    }{%
      \IfFileExists{"\AsyFile.tex"}{%
        \catcode`:=12
        \@@input"\AsyFile.tex"\relax
      }{%
        \PackageWarning{asymptote}{%
          file `\AsyFile.\AsyExtension' not found%
        }%
      }%
    }%
  \fi
}
\def\asydef{%
  \let\ThisAsymptote\WriteGlobalAsyLine
  \ProcessAsymptote{asydef}%
}
\newcommand\asyinclude[2][]{%
  \begingroup
  \stepcounter{asy}%
  \setkeys{ASYkeys}{#1}%
  \ifASYattach
    \ASYinlinefalse
  \fi
  \ifx\asydir\empty\else
    \def\ASYprefix{\asydir/}%
  \fi
  \immediate\write\AsyPreStream{%
    \noexpand\InputIfFileExists{%
      \ASYprefix\noexpand\jobname-\the\c@asy.pre}{}{}%
  }
  \asy@write@graphic@header
  \IfFileExists{#2.asy}{%
    \CatchFileDef\@tempa{#2.asy}{%
      \let\do\@makeother
      \dospecials
      \endlinechar=10\relax
    }
  }{
    \IfFileExists{#2}{%
      \CatchFileDef\@tempa{#2}{%
        \let\do\@makeother
        \dospecials
        \endlinechar=10\relax
      }
    }{
      \PackageWarning{asymptote}{file #2 not found}%
    }
  }
  \immediate\write\AsyStream{\unexpanded\expandafter{\@tempa}}%
  \asy@finalise@stream
  \asy@input@graphic
  \endgroup
}
\newcommand{\ASYanimategraphics}[5][]{%
  \IfFileExists{_#3.pdf}{%
    \animategraphics[{#1}]{#2}{_#3}{#4}{#5}%
  }{}
}
\newcommand\asysetup[1]{\setkeys{ASYkeys}{#1}}
\define@key{ASYkeys}{dir}{%
  \def\asydir{#1}%
}
\def\ASYwidth{}
\define@key{ASYkeys}{width}{%
  \edef\ASYwidth{\the\dimexpr#1\relax}%
}
\def\ASYheight{}
\define@key{ASYkeys}{height}{%
  \edef\ASYheight{\the\dimexpr#1\relax}%
}
\define@key{ASYkeys}{keepAspect}[true]{%
  \ifthenelse{\equal{#1}{true}}
    {\ASYkeepAspecttrue}
    {\ASYkeepAspectfalse}%
}
\def\ASYviewportwidth{\ASYdefaultviewportwidth}
\def\ASYdefaultviewportwidth{%
  \ifASYattach \@empty \else \the\linewidth \fi
}
\define@key{ASYkeys}{viewportwidth}{%
  \edef\ASYviewportwidth{\the\dimexpr#1\relax}%
}
\def\ASYviewportheight{}
\define@key{ASYkeys}{viewportheight}{%
  \edef\ASYviewportheight{\the\dimexpr#1\relax}%
}
\define@key{ASYkeys}{inline}[true]{%
  \ifthenelse{\equal{#1}{true}}
    {\ASYinlinetrue}
    {\ASYinlinefalse}%
}
\define@key{ASYkeys}{attach}[true]{%
  \ifthenelse{\equal{#1}{true}}
    {\ASYattachtrue}
    {\ASYattachfalse}%
}
