✏ 编辑: ppath.ps

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% Redefine pathforall for tracing.
% Can't be used recursively.

/# {( )print} def

/-mat matrix def
/-imat matrix def
/-smat { //-mat currentmatrix pop //-imat setmatrix } bind def
/-rmat { //-mat setmatrix } bind def
/-pathforall /pathforall load def
/-p2 { ( ) print exch =only ( ) print =only } bind def
/-dp2 { 2 copy -p2 2 { exch 4096 mul dup cvi dup ( ) print =only sub dup 0 eq { pop } { (+) print =only } ifelse } repeat } bind def
/-tp2 { //-mat itransform -p2 } bind def
/-dict 5 dict def

/pathforall
 { -dict begin
   /-close exch def  /-curve exch def  /-line exch def  /-move exch def
   end -smat -mat ==only ( setmatrix) =
   {2 copy -tp2 ( moveto\t%)print
    2 copy -dp2 (\n)print
    flush -dict /-move get -rmat exec -smat}
   {2 copy -tp2 ( lineto\t%)print
    2 copy -dp2 (\n)print
    flush -dict /-line get -rmat exec -smat}
   {5 index 5 index -tp2 3 index 3 index -tp2 2 copy -tp2 ( curveto\t%)print
    5 index 5 index -dp2 3 index 3 index -dp2 2 copy -dp2 (\n)print
    flush -dict /-curve get -rmat exec -smat}
   {(closepath\n)print flush   -dict /-close get -rmat exec -smat}
   -pathforall -rmat
 }
def

% Just print the current path

/printpath {
  {pop pop} {pop pop} {pop pop pop pop pop pop} {} pathforall
} def

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