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.PS
# diamond.m4
gen_init
# See LaTeX Graphics Companion pp 57-58
ifdpic(`
dimen = 1.5
ratio = 0.9
n = 30
North: (0,dimen)
East: (dimen,0)
South: (0,-dimen)
West: (-dimen,0)
define(`square',
`shade(`$1',
line from North to East then to South then to West then to North)
')
define(`diamond',`[
for i = 2 to n do {
square(`$1')
Tmp: North
North: ratio between East and North
East: ratio between South and East
South: ratio between West and South
West: ratio between Tmp and West
}]')
linethick = 0
diamond( i % 2 )
linethick = 0.4
diamond( (n-i)/(n-2) ) with .w at last [].e+(0.25,0)
',
`box "diamond.m4" "requires" "dpic"')
.PE
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