A MultiSurface is an unstructured set <math>M=\lbrace S_1,S_2,...S_n\rbrace</math> of polygons. No further constraints are defined for a MultiSurface element. It is not necessary that M is a connected surface. Orientation of the polygons is arbitrary. By a MultiSurface any existing polygonal boundary representation of a rigid body can be described. Unfortunately, also objects that do not exist in real space can be modeled. | A MultiSurface is an unstructured set <math>M=\lbrace S_1,S_2,...S_n\rbrace</math> of polygons. No further constraints are defined for a MultiSurface element. It is not necessary that M is a connected surface. Orientation of the polygons is arbitrary. By a MultiSurface any existing polygonal boundary representation of a rigid body can be described. Unfortunately, also objects that do not exist in real space can be modeled. |