fpzp = block.subcontact.flowplane.vertex(bscp)

Get the flowplane vertex associated with the subcontact. WARNING, subcontacts on the edges of flow planes will return null for the flowplane vertex. Also, only one of two subcontacts at a given location will return a non-null pointer for the flowplane vertex.

Returns:fpxp - flow plane vertex pointer
Arguments:bscp - block subcontact pointer