The -v option with two numbers matches a vertex on the brick
(second index number) with one on the base (first index number)
by a translation. In this example a pentagonal
pyramid is turned on its side and has its apex aligned with a
square pyramid. Notice that the brick was specified as '-' to
indicate that it should be read from standard input.
View this model with the command
off_trans pyr5 -R 0,90,0| off_align -v -,4,5 pyr4 -M 2 | antiview