Description :
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The -F option aligns a face on the brick with a face on the base
and then uses it to augment or excavate the base model (the polyhedra
are joined and the bonding faces removed)
It may be possible to align the face in various ways, the third
number selects from these possibilities, with the first possibility
being 0. In this example the upper polygon of a square cupola is
bonded with itself. The base is read from standard input, the
brick is specied as a copy of the base by not providing a name
for it.
View this model with the command
off_trans -R 110,0,0 cup4 | off_align -F ,1,1 | antiview
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