%
% macros for picture produced by "mma2ltx"
% version 1.23 - 21 Jun 1995
%
% Copyright (C) 1994, 1995 by Giuseppe Ghib\`o (<ghibo@galileo.polito.it>)
%
% ----------------------------------------------------------------------------
%
\typeout{Document Style `mmatext' - v1.23 (21/6/95) - (C) 1994,1995 by Giuseppe Ghibo`}
%
% 
\gdef\mma@prologue{texmma22.pro}% Mathematica v2.2 PostScript prologue file.
%
%
\newdimen\mma@tmpdima
\newdimen\mma@tmpdimb
\newdimen\mma@tmpdimc
\newdimen\mma@tmpdimd
\newbox\mma@tmpbox
%
%
% \mmaheaderprotrue   = include the prologue file \mma@prologue (once) using
%                       the \special{header=...}.
% \mmaheaderprofalse  = don't include the prologue file \mma@prologue.
% \mma@proloadedtrue  = the prologue \mma@prologue has been already loaded.
% \mma@proloadedfalse = the prologue \mma@prologue has not been loaded.
% \mma@whitebgtrue    = the object will have a white background
% \mma@whitebgfalse   = the object will have a transparent background
\newif\ifmmaheaderpro  \mmaheaderprotrue
\newif\ifmma@proloaded \mma@proloadedfalse
\newif\ifmma@whitebg
%
%
% \@nameedef is similar to the LaTeX command \@namedef, except it uses \edef
% instead of \def.
\def\@nameedef#1{\expandafter\edef\csname #1\endcsname}
%
\let\ccd=\catcode
\ccd`\p=12\ccd`\t=12
\def\del@dim#1pt{#1}%
\ccd`\p=11\ccd`\t=11
%
\def\pt@mm{0.3514598}\def\unit@mm{mm}%
\def\pt@cm{0.03514598}\def\unit@cm{cm}%
\def\pt@pt{1}\def\unit@pt{pt}%
\def\pt@bp{0.99626401}\def\unit@bp{bp}%
\def\pt@pc{0.08333333}\def\unit@pc{pc}%
\def\pt@in{0.013837}\def\unit@in{in}%
\def\pt@dd{0.9345719}\def\unit@dd{dd}%
\def\pt@cc{0.07788099}\def\unit@cc{cc}%
\def\pt@dbp{9.9626401}\def\unit@dbp{dbp}%
%
\def\deldim#1{\expandafter\del@dim\the#1}%trash the trailing 'pt'
\def\dimtomac#1#2#3{%
% \dimtomac (expands a dimension register into a macro)
% #1 = a dimension register (e.g., \mydim, \dimen0, ...)
% #2 = conversion factor from pt to a choosed unit or
%      one of mm, cm, pt, bp, pc, in, dd, cc, sp, dbp.
% #3 = macro to which assign the converted value.
\lowercase{\edef\convfactor{#2}}
\ifx\convfactor\unit@mm\def\convfactor{\pt@mm}\else
\ifx\convfactor\unit@cm\def\convfactor{\pt@cm}\else
\ifx\convfactor\unit@pt\def\convfactor{\pt@pt}\else
\ifx\convfactor\unit@bp\def\convfactor{\pt@bp}\else
\ifx\convfactor\unit@dbp\def\convfactor{\pt@dbp}\else
\ifx\convfactor\unit@pc\def\convfactor{\pt@pc}\else
\ifx\convfactor\unit@in\def\convfactor{\pt@in}\else
\ifx\convfactor\unit@dd\def\convfactor{\pt@dd}\else
\ifx\convfactor\unit@cc\def\convfactor{\pt@cc}\else
\fi\fi\fi\fi\fi\fi\fi\fi\fi
\mma@tmpdima=#1%
\ifx\convfactor\unit@sp\@nameedef{#3}{\number\mma@tmpdima}\else
\mma@tmpdimb=\convfactor\mma@tmpdima%
\@nameedef{#3}{\deldim\mma@tmpdimb}\fi
}% end of dimtomac definition
%
%
\newdimen\mma@dimunit \mma@dimunit=1bp
\newdimen\mma@llx \newdimen\mma@urx \newdimen\mma@width  \newdimen\mma@oldwd
\newdimen\mma@lly \newdimen\mma@ury \newdimen\mma@height \newdimen\mma@oldht
\newdimen\mma@x \newdimen\mma@y
\newdimen\mma@deltax \newdimen\mma@deltay
%
\gdef\mma@wd{161}%  default width in bp
\gdef\mma@ht{100}%  default height in bp
\gdef\mma@unit{bp}% default unit = bp
\mma@width=\mma@wd bp
\mma@height=\mma@ht bp
\mma@llx=\z@ \mma@urx=\mma@width
\mma@lly=\z@ \mma@ury=\mma@height
\mma@deltax=\z@ \mma@deltay=\z@
%
%
% *************
% *           *
% * mmasetpic *
% *           *
% *************
\def\mmasetpic(#1,#2){\@ifnextchar({\mma@oldsetpic(#1,#2)}{%
\mma@setpic(#1,#2)}}
%
\def\mma@setpic(#1,#2)[#3]#4{%
% #1 = width of Mathematica PostScript picture
% #2 = height of Mathematica PostScript picture
% #3 = unit of measure
% #4 = PostScript filename
\lowercase{\edef\mma@unit{#3}}
\mma@dimunit=1\mma@unit
\mma@llx=\z@ \mma@urx=#1\mma@dimunit
\mma@lly=\z@ \mma@ury=#2\mma@dimunit
\mma@width=#1\mma@dimunit \mma@height=#2\mma@dimunit
\mma@oldwd=\mma@width \mma@oldht=\mma@height
\dimtomac{\mma@oldwd}{bp}{mma@wd}
\dimtomac{\mma@oldht}{bp}{mma@ht}
\def\mma@psname{#4}
%
% include the prologue file \mma@prologue at most once.
\ifmma@proloaded\else
\ifmmaheaderpro
\@killglue\special{header=texmma22.pro}
\global\mma@proloadedtrue\fi\fi
}
%
%
% ***************
% *             *
% * mmatextfits *
% *             *
% ***************
\def\mmatextfits(#1,#2)(#3,#4){\@ifnextchar({\mma@textfits(#1,#2)(#3,#4)}{%
        \mma@textfits(#1,#2)(#3,#4)(0,0)}}
%
\def\mma@textfits(#1,#2)(#3,#4)(#5,#6)#7{%
% #1 = x coord.
% #2 = y coord.
% #3 = sdx (bounding box x offs., like the Mathematica command "Text")
% #4 = sdx (bounding box y offs., like the Mathematica command "Text")
% #5 = extra offset to the x coord.
% #6 = extra offset to the y coord.
% #7 = text to fit.
\setbox\mma@tmpbox=\hbox{#7}
%
% tmpllx = x - 1/2*wd*(sdx+1)
\mma@tmpdima=#1\mma@dimunit \advance\mma@tmpdima by #5\mma@dimunit
\mma@tmpdimb=#3\wd\mma@tmpbox
\advance\mma@tmpdimb by \wd\mma@tmpbox
\divide\mma@tmpdimb by 2
\advance\mma@tmpdima by -\mma@tmpdimb
\ifdim\mma@tmpdima < \mma@llx \mma@llx=\mma@tmpdima\fi
%
% tmplly = y - 1/2*(ht+dp)*(sdy+1)
\mma@tmpdima=#2\mma@dimunit \advance\mma@tmpdima by #6\mma@dimunit
\mma@tmpdimb=\ht\mma@tmpbox
\advance\mma@tmpdimb by \dp\mma@tmpbox
\mma@tmpdimb=#4\mma@tmpdimb
\advance\mma@tmpdimb by \ht\mma@tmpbox
\advance\mma@tmpdimb by \dp\mma@tmpbox
\divide\mma@tmpdimb by 2
\advance\mma@tmpdima by -\mma@tmpdimb
\ifdim\mma@tmpdima < \mma@lly \mma@lly=\mma@tmpdima\fi
%
% tmpurx = x - 1/2*wd*(sdx-1)
\mma@tmpdima=#1\mma@dimunit \advance\mma@tmpdima by #5\mma@dimunit
\mma@tmpdimb=#3\wd\mma@tmpbox
\advance\mma@tmpdimb by -\wd\mma@tmpbox
\divide\mma@tmpdimb by 2
\advance\mma@tmpdima by -\mma@tmpdimb
\ifdim\mma@tmpdima > \mma@urx \mma@urx=\mma@tmpdima\fi
%
% tmpury = y - 1/2*(ht+dp)*(sdy-1)
\mma@tmpdima=#2\mma@dimunit \advance\mma@tmpdima by #6\mma@dimunit
\mma@tmpdimb=\ht\mma@tmpbox
\advance\mma@tmpdimb by \dp\mma@tmpbox
\mma@tmpdimb=#4\mma@tmpdimb
\advance\mma@tmpdimb by -\ht\mma@tmpbox
\advance\mma@tmpdimb by -\dp\mma@tmpbox
\divide\mma@tmpdimb by 2
\advance\mma@tmpdima by -\mma@tmpdimb
\ifdim\mma@tmpdima > \mma@ury \mma@ury=\mma@tmpdima\fi
%
% Recalculate new picture size
\mma@width=\mma@urx \advance\mma@width by -\mma@llx
\mma@height=\mma@ury \advance\mma@height by -\mma@lly
\mma@deltax=\mma@width \advance\mma@deltax by -\mma@oldwd
\mma@deltay=\mma@height \advance\mma@deltay by -\mma@oldht
}% end of \mmatextfits definition
%
%
% **************
% *            *
% * mmapicture *
% *            *
% **************
\def\mmapicture{%
\bgroup
\unitlength=1sp% so we can use the command \number
\dimtomac{\mma@width}{\mma@unit}{mma@truewd}
\dimtomac{\mma@height}{\mma@unit}{mma@trueht}
\dimtomac{\mma@deltax}{\mma@unit}{mma@dx}
\dimtomac{\mma@deltay}{\mma@unit}{mma@dy}
\typeout{Mathematica  picture:\space'\mma@psname'\space%
     size=(\mma@truewd\space x\space\mma@trueht\space\mma@unit)}
\ifdim\mma@deltax > 0pt
   \typeout{Mathematica picture:\space'\mma@psname'\space%
            deltax=\mma@dx\space\mma@unit}
\fi
\ifdim\mma@deltay > 0pt
   \typeout{Mathematica picture:\space'\mma@psname'\space%
            deltay=\mma@dy\space\mma@unit}
\fi
\@killglue
\begin{picture}(\number\mma@width,\number\mma@height)(\number\mma@llx,\number\mma@lly)
\put(0,0){\special{psfile=\mma@psname\space hsize=\mma@wd\space vsize=\mma@ht}}}
%
\def\endmmapicture{\end{picture}\egroup}
%
%
% **************
% *            *
% * mmaputtext *
% *            *
% **************
\def\mmaputtext{\@ifstar{\mma@whitebgtrue\mma@puttext}{\mma@whitebgfalse%
\mma@puttext}}

\def\mma@puttext(#1,#2)(#3,#4){\@ifnextchar({\mma@@puttext(#1,#2)(#3,#4)}{%
        \mma@@puttext(#1,#2)(#3,#4)(0,0)}}
%
\def\mma@@puttext(#1,#2)(#3,#4)(#5,#6)#7{%
% #1 = x coord.
% #2 = y coord.
% #3 = sdx (bounding box x offs., like the command "Text" of Mathematica)
% #4 = sdx (bounding box y offs., like the command "Text" of Mathematica)
% #5 = offset to the x coord.
% #6 = offset to the y coord.
% #7 = text (or object) to put.
%
\setbox\mma@tmpbox=\hbox{#7}
\mma@x=#1\mma@dimunit \advance\mma@x by #5\mma@dimunit
\mma@y=#2\mma@dimunit \advance\mma@y by #6\mma@dimunit
%
% xp = x - 1/2 * wd * (sdx + 1)
\mma@tmpdima=#3\wd\mma@tmpbox
\advance\mma@tmpdima by \wd\mma@tmpbox
\divide\mma@tmpdima by 2
\advance\mma@x by -\mma@tmpdima
%
% yp = y - 1/2*(sdy*htot + ht - dp)
\mma@tmpdima=\ht\mma@tmpbox
\advance\mma@tmpdima by \dp\mma@tmpbox
\mma@tmpdima=#4\mma@tmpdima
\advance\mma@tmpdima by \ht\mma@tmpbox
\advance\mma@tmpdima by -\dp\mma@tmpbox
\divide\mma@tmpdima by 2
\advance\mma@y by -\mma@tmpdima
%
\mma@tmpdimc=\dp\mma@tmpbox
\ifmma@whitebg
\mma@tmpdimc=\wd\mma@tmpbox
\mma@tmpdimd=\ht\mma@tmpbox \advance\mma@tmpdimd by \dp\mma@tmpbox
\dimtomac{\mma@tmpdimc}{bp}{mma@tmpwd}
\dimtomac{\mma@tmpdimd}{bp}{mma@tmpht}
\advance\mma@y by -\dp\mma@tmpbox% special{psfile=mmawhite.eps...} has zero depth
\put(\number\mma@x,\number\mma@y){\makebox(0,0)[lb]{\special{psfile=mmawhite.eps\space hsize=\mma@tmpwd\space vsize=\mma@tmpht}}}
\advance\mma@y by \dp\mma@tmpbox\fi
\put(\number\mma@x,\number\mma@y){\makebox(0,0)[lb]{\box\mma@tmpbox}}
}% end of \mma@puttext definition
%
%
% For backward compatibility with mma2ltx v1.03
\def\mmashowunit#1{\gdef\mma@unit{#1}\global\mma@dimunit=1bp}
%
% For backward compatibility with mma2ltx v1.03
\def\mma@oldsetpic(#1,#2)(#3,#4,#5,#6)#7{%
% #1 = width of Mathematica PostScript picture in bp
% #2 = height of Mathematica PostScript picture in bp
% #3,#4,#5,#6 = transformation matrix (never used).
% #7 = PostScript filename
%
\mma@llx=\z@ \mma@urx=#1\mma@dimunit
\mma@lly=\z@ \mma@ury=#2\mma@dimunit
\mma@width=#1\mma@dimunit \mma@height=#2\mma@dimunit
\mma@oldwd=\mma@width \mma@oldht=\mma@height
\gdef\mma@wd{#1} \gdef\mma@ht{#2}
\gdef\mma@psname{#7}
\ifmma@proloaded\else
\@killglue\special{header=texmma22.pro}
\global\mma@proloadedtrue\fi
}% end of mmaoldsetpic definition

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