An extrusion is a solid volume in 3D space, defined by a planar face (IFMEFace) and an extrusion vector. This solid is defined by the prism generated by extruding the face in the direction and magnitude described by the extrusion vector.
For example, a triangular face, extruded in the direction of the surface normal of that face, yields an IFMEExtrusion that represents a triangular prism.
Contains: IFMEFace (1)
Contained by: IFMECompositeSolid, IFMEMultiSolid, IFMECSGSolid