#title CalculateCompositePrincipalTransform [RCBasic Doc]
#header Sub CalculateCompositePrincipalTransform(actor, ByRef masses, principal_matrix, ByRef x, ByRef y, ByRef z)

Calculates the center of mass and principal intertia axes for a composite actor.

Parameters:
#list ul
#li masses - An array with masses for each child in the compound shape
#li principal_matrix - This will be set to principal axis transform
#li (x, y, z) - Inertia
#/list

#ref CreateCompositeActor