Polyhedral center-of-mass PD software requested...

[Jonathan King]

Does there exist a Public Domain program which allows one to define a
polyhedron (with perhaps some 40 sides) and will then compute the location
of its center-of-mass? (the polyhedron has uniform density)

  ...This is a special case of a CAD program, I suppose...

Specifically, I'm looking for a program which accepts a parameterized
description of a polyhedron, and, as I vary the parameters, prints the
location of its center-of-mass.

Ta, jonathan


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