358{
360 sfcgal_geometry_t *geom0, *geom1;
361 sfcgal_geometry_t *result;
362 srid_t srid;
363
365
366 input0 = (
GSERIALIZED *)PG_DETOAST_DATUM(PG_GETARG_DATUM(0));
368 input1 = (
GSERIALIZED *)PG_DETOAST_DATUM(PG_GETARG_DATUM(1));
370 PG_FREE_IF_COPY(input0, 0);
372 PG_FREE_IF_COPY(input1, 1);
373
374 result = sfcgal_geometry_difference_3d(geom0, geom1);
375 sfcgal_geometry_delete(geom0);
376 sfcgal_geometry_delete(geom1);
377
379 sfcgal_geometry_delete(result);
380
381 PG_RETURN_POINTER(output);
382}
int32_t gserialized_get_srid(const GSERIALIZED *g)
Extract the SRID from the serialized form (it is packed into three bytes so this is a handy function)...
sfcgal_geometry_t * POSTGIS2SFCGALGeometry(GSERIALIZED *pglwgeom)
GSERIALIZED * SFCGALGeometry2POSTGIS(const sfcgal_geometry_t *geom, int force3D, int32_t SRID)
void sfcgal_postgis_init(void)