typedef int PK_facet_fault_t; This typedef can take any one of the following values. PK_facet_fault_face_c : face could not be facetted PK_facet_fault_facet_c : facet disconnected from neighbours PK_facet_fault_vertex_point_c : point data for vertex is not valid PK_facet_fault_vertex_normal_c : normal data for vertex is not valid PK_facet_fault_vertex_param_c : param data for vertex is not valid PK_facet_fault_thin_face_c : no facets output for thin face PK_facet_fault_body_c : body could not be facetted