James:
This will work:
hA = A/2
PRISM_ 8, 1,
0, 0, 15,
A, 0, 15,
A, B, 15,
0, B, 15,
0, 0, 79,
A, 0, -1,
hA, hA, 900,
hA/2, 360, 4013
Maybe one of the Graphisoft folks can chime in if there is a better solution, or if this has an inherent problem.
David
David Maudlin / Architect
Washington, D.C.
AC 22 - Mac OS