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.PS
# `Flowdiag.m4'
gen_init
define(`shadellipse',`{ellipse $1 fill invis
define(`m4h',`1.0 pt__')dnl
ellipse invis fill 0.5 wid last ellipse .wid+linethick pt__ \
ht last ellipse .ht + linethick pt__ at last ellipse+(m4h,-m4h)}
ellipse fill 1 $1')
shadellipse "{\tt .m4}" "diagram"
arrow right linewid*2/3
{shadellipse(with .b at Here+(-linewid*0.5,boxht/3+linewid/3)) \
"{\tt .m4}" "macros"}
arrow from last ellipse.b down linewid/3 then right linewid*0.5
move down boxht/6; right
shadebox(box wid boxht "{\bf m4}")
arrow right linewid/2
shadebox(box "{\bf pic}" "interpreter")
arrow right from Here-(0,boxht/6)
{shadellipse(with .b at Here+(-linewid*0.5,boxht/3+linewid/3)) \
"{\tt .tex}" "files"}
{arrow from last ellipse.b down linewid/3 then right linewid*0.5}
move up boxht/6; right
shadebox(box "\LaTeX" "or" "PDFlatex")
arrow right linewid*2/3
shadebox(box wid boxht "{\tt .dvi}" "or" "{\tt .pdf}")
.PE
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