/usr/share/axiom-20120501/input/ribbons.input is in axiom-test 20120501-8.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | --Copyright The Numerical Algorithms Group Limited 1994.
--the second attempt
drawRibbons(flist, xrange, yrange) ==
sp := createThreeSpace()
num := # flist
yVar := variable yrange
y0:Float := lo segment yrange
width:Float := (hi segment yrange - y0)/num
for f in flist for color in 1..num repeat
makeObject(f, xrange, yVar = y0..y0+width,
var2Steps == 1, colorFunction == (x,y) +-> color,
space ==sp)
y0:= y0 + width
vp := makeViewport3D(sp, "Ribbons")
drawStyle(vp, "shade")
outlineRender(vp, "on")
showRegion(vp, "on")
vp
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