struct PK_EDGE_check_o_s { int o_t_version; --- version number of option structure int max_faults; --- limit on fault numbers (5) PK_check_geom_t geom; --- bad geometry (PK_check_geom_yes_c) PK_check_bgeom_t bgeom; --- bad B geometry (PK_check_bgeom_yes_c) PK_check_top_geo_t top_geo; --- topology/geometry inconsistency --- (PK_check_top_geo_edge_c) PK_check_size_box_t size_box; --- size box violation --- (PK_check_size_box_yes_c) }; typedef struct PK_EDGE_check_o_s PK_EDGE_check_o_t; Holds optional controls for checking an edge. The option structure defines options applicable to checking an edge.