flow.ps

%!
%%BoundingBox: 61 547 208 757
%%Title: flow
%%CreationDate: Fri Apr 22 10:23:34 1994
%%Creator: Tgif-2.14-p9 by William Chia-Wei Cheng (william@cs.UCLA.edu)
%%Pages: 1
%%DocumentFonts: (atend)
%%EndComments
%%BeginProlog
%
%	Due to bugs in Transcript, the 'PS-Adobe-' stuff is omitted from line 1
%

/tgifdict 132 dict def
tgifdict begin

%
%	Using a zero value radius for an ellipse or an arc would result
%		in a non-invertible CTM matrix which causes problem when this
%		when this PostScript is wrapped inside other routines, such as
%		the multi.ps package from
%		ftp.ucc.su.oz.au:/pub/ps_printing/multi.  You can overcome such
%		error by uncommenting the sole line of the procedure below:
%
/tgif_min_radius
 {
%    dup 0.01 lt { pop 0.01 } if
 } bind def

/tgifellipsedict 6 dict def
tgifellipsedict /mtrx matrix put

/tgifellipse
 { tgifellipsedict begin
      /yrad exch def
      /xrad exch def
      /y exch def
      /x exch def
      /savematrix mtrx currentmatrix def
      x y translate
      xrad yrad scale
      0 0 1 0 360 arc
      savematrix setmatrix
   end
 } def

/tgifarrowtipdict 8 dict def
tgifarrowtipdict /mtrx matrix put

/tgifarrowtip
 { tgifarrowtipdict begin
      /dy exch def
      /dx exch def
      /h exch def
      /w exch def
      /y exch def
      /x exch def
      /savematrix mtrx currentmatrix def
      x y translate
      dy dx atan rotate
      0 0 moveto
      w neg h lineto
      w neg h neg lineto
      savematrix setmatrix
   end
 } def

/tgifarcdict 8 dict def
tgifarcdict /mtrx matrix put

/tgifarcn
 { tgifarcdict begin
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      /startangle exch def
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      /xrad exch def
      /y exch def
      /x exch def
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      0 0 1 startangle endangle arc
      savematrix setmatrix
   end
 } def

/tgifarc
 { tgifarcdict begin
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      0 0 1 startangle endangle arcn
      savematrix setmatrix
   end
 } def

/tgifsetuserscreendict 22 dict def
tgifsetuserscreendict begin
   /tempctm matrix def
   /temprot matrix def
   /tempscale matrix def

   /concatprocs
    { /proc2 exch cvlit def
      /proc1 exch cvlit def
      /newproc proc1 length proc2 length add array def
      newproc 0 proc1 putinterval
      newproc proc1 length proc2 putinterval
      newproc cvx
    } def
   /resmatrix matrix def
   /findresolution
    { 72 0 resmatrix defaultmatrix dtransform
      /yres exch def /xres exch def
      xres dup mul yres dup mul add sqrt
    } def
end

/tgifsetuserscreen
 { tgifsetuserscreendict begin
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      /screenangle exch def
      /cellsize exch def

      /m tempctm currentmatrix def
      /rm screenangle temprot rotate def
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      1 0 m dtransform /y1 exch def /x1 exch def

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      /frequency findresolution veclength div def

      /newscreenangle y1 x1 atan def

      m 2 get m 1 get mul m 0 get m 3 get mul sub 0 gt

      {{neg} /spotfunction load concatprocs
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      } if

      frequency newscreenangle /spotfunction load setscreen
   end
 } def

/tgifsetpatterndict 18 dict def
tgifsetpatterndict begin
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    } def
end

/tgifbitpatternspotfunction
 { tgifsetpatterndict begin
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      /yindex y 1 add 2 div bpside mul cvi def

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       { /offbits offbits 1 add def 0 }
       ifelse
   end
 } def

/tgifsetpattern
 { tgifsetpatterndict begin
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      /angle exch def
      /bwidth exch def
      /bpside exch def
      /bstring exch def

      /onbits 0 def /offbits 0 def
      cellsz angle /tgifbitpatternspotfunction load tgifsetuserscreen
      {} settransfer
      offbits offbits onbits add div setgray
   end
 } def

/tgifxpmdict 4 dict def
/tgifbwpicstr 1 string def
/tgifcolorpicstr 3 string def

/tgifsetpixels { tgifxpmdict begin /pixels exch def end } def

/tgifsetpix { tgifxpmdict begin pixels 3 1 roll putinterval end } def

/tgifbwspot
 { tgifxpmdict begin
      /index exch def
      tgifbwpicstr 0
      pixels index 3 mul 3 getinterval aload pop
      255 mul .114 mul exch 255 mul .587 mul add exch 255 mul .299 mul add
      cvi put
      tgifbwpicstr
   end
 } def

/tgifcolorspot
 { tgifxpmdict begin
      /index exch def
      pixels index 3 mul 3 getinterval aload pop
      255 mul cvi tgifcolorpicstr 2 3 -1 roll put
      255 mul cvi tgifcolorpicstr 1 3 -1 roll put
      255 mul cvi tgifcolorpicstr 0 3 -1 roll put
      tgifcolorpicstr
   end
 } def

/tgifnewcolorspot
 { tgifxpmdict begin
      /index exch def
      pixels index 3 mul 3 getinterval aload pop setrgbcolor
   end
 } def

/tgifcolordict 4 dict def

/colorimage where
 { pop }
 { /colorimage
   { tgifcolordict begin
        pop pop pop pop pop
        /ih exch def
        /iw exch def
        /x 0 def
        /y 0 def
        1 1 ih
         { pop 1 1 iw
            { pop currentfile
              tgifbwpicstr readhexstring pop 0 get tgifnewcolorspot
              x y moveto 1 0 rlineto 0 1 rlineto -1 0 rlineto
              closepath fill
              /x x 1 add def
            } for
           /y y 1 add def
           /x 0 def
         } for
     end
   } def
 } ifelse

/tgifpatdict 10 dict def

/tgifpatbyte
 { currentdict /retstr get exch
   pat i cellsz mod get put
 } def

/tgifpatproc
 { 0 1 widthlim {tgifpatbyte} for retstr
   /i i 1 add def
 } def

/tgifpatfill
 { tgifpatdict begin
      /h exch def
      /w exch def
      /lty exch def
      /ltx exch def
      /cellsz exch def
      /pat exch def

      /widthlim w cellsz div cvi 1 sub def
      /retstr widthlim 1 add string def
      /i 0 def

      ltx lty translate
      w h true [1 0 0 1 0 0] {tgifpatproc} imagemask
      ltx neg lty neg translate
   end
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/pat31 <7cf8f1e3c78f1f3e> def

/tgifcentertext { dup stringwidth pop 2 div neg 0 rmoveto } def

/tgifrighttext { dup stringwidth pop neg 0 rmoveto } def

/tgifreencsmalldict 12 dict def
/tgifReEncodeSmall
 { tgifreencsmalldict begin
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      /newfontname exch def
      /basefontname exch def

      /basefontdict basefontname findfont def
      /newfont basefontdict maxlength dict def

      basefontdict
      { exch dup /FID ne
         { dup /Encoding eq
            { exch dup length array copy newfont 3 1 roll put }
            { exch newfont 3 1 roll put }
            ifelse
         }
         { pop pop }
         ifelse
      }
      forall

      newfont /FontName newfontname put
      newcodesandnames aload pop

      newcodesandnames length 2 idiv
      { newfont /Encoding get 3 1 roll put}
      repeat

      newfontname newfont definefont pop
   end
 } def

/tgifgray { 8 1 0 72 300 32 div div tgifsetpattern } bind def

/tgifboxdict 6 dict def
/tgifboxstroke
 { tgifboxdict begin
      /pat def /w def /y2 exch def /x2 exch def /y1 exch def /x1 exch def
      1.415 setmiterlimit
      w 1 eq { w setlinewidth } if
      pat pat1 ne pat pat2 ne and { gsave pat tgifgray } if
      newpath x1 y1 moveto x2 y1 lineto x2 y2 lineto x1 y2 lineto closepath
      pat pat2 eq { 1 setgray stroke 0 setgray } { stroke } ifelse
      pat pat1 ne pat pat2 ne and { grestore } if
      w 1 eq { 1 setlinewidth } if
      1 setmiterlimit
   end
 } def
/tgifboxfill
 { tgifboxdict begin
      /pat def /y2 exch def /x2 exch def /y1 exch def /x1 exch def
      pat pat1 ne pat pat2 ne and { gsave pat tgifgray } if
      newpath x1 y1 moveto x2 y1 lineto x2 y2 lineto x1 y2 lineto closepath
      pat pat2 eq { 1 setgray fill 0 setgray } { fill } ifelse
      pat pat1 ne pat pat2 ne and { grestore } if
   end
 } def

end

%%EndProlog
%%Page: 1 1

%%PageBoundingBox: 61 547 208 757
tgifdict begin
/tgifsavedpage save def

1 setmiterlimit
1 setlinewidth

72 0 mul 72 11 mul translate
72 128 div 100 mul 100 div dup neg scale

gsave

% TEXT
0 setgray
/Helvetica findfont [18 0 0 -18 0 0] makefont setfont
   gsave
      240 98 moveto (1.Define functions) tgifcentertext show
      240 121 moveto (and constants) tgifcentertext show
   grestore

% TEXT
0 setgray
/Helvetica findfont [18 0 0 -18 0 0] makefont setfont
   gsave
      240 226 moveto (2.Set plotting environment) tgifcentertext show
   grestore

% TEXT
0 setgray
/Helvetica findfont [18 0 0 -18 0 0] makefont setfont
   gsave
      240 322 moveto (3.Plotting) tgifcentertext show
   grestore

% TEXT
0 setgray
/Helvetica findfont [18 0 0 -18 0 0] makefont setfont
   gsave
      240 418 moveto (4.Output) tgifcentertext show
   grestore

% RCBOX
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   newpath
      304 64 moveto
      320 64 320 144 16 arcto 4 {pop} repeat
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% RCBOX
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      352 192 moveto
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% RCBOX
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% RCBOX
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      288 416 lineto
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      192 400 lineto
      192 384 288 384 16 arcto 4 {pop} repeat
   closepath stroke
   1 setlinewidth
grestore

% POLY/OPEN-SPLINE
gsave
   2 setlinewidth
   newpath
      240 144 moveto
      48 0 atan dup cos 10 mul 240 exch sub
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   stroke
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grestore
gsave
   newpath
      240 192 10 4 0 48 tgifarrowtip
   closepath fill
grestore

% POLY/OPEN-SPLINE
gsave
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   newpath
      240 240 moveto
      48 0 atan dup cos 10 mul 240 exch sub
      exch sin 10 mul 288 exch sub lineto
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gsave
   newpath
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   closepath fill
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% POLY/OPEN-SPLINE
gsave
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   newpath
      240 336 moveto
      48 0 atan dup cos 10 mul 240 exch sub
      exch sin 10 mul 384 exch sub lineto
   stroke
   1 setlinewidth
grestore
gsave
   newpath
      240 384 10 4 0 48 tgifarrowtip
   closepath fill
grestore

grestore
tgifsavedpage restore
end
showpage

%%Trailer
%MatchingCreationDate: Fri Apr 22 10:23:34 1994
%%DocumentFonts: Helvetica
%%EOF