PostGIS  3.0.0dev-r@@SVN_REVISION@@

◆ sfcgal_intersection()

Datum sfcgal_intersection ( PG_FUNCTION_ARGS  )

Definition at line 472 of file postgis/lwgeom_sfcgal.c.

References gserialized_get_srid(), PG_FUNCTION_INFO_V1(), POSTGIS2SFCGALGeometry(), sfcgal_intersection3D(), sfcgal_postgis_init(), and SFCGALGeometry2POSTGIS().

Referenced by sfcgal_approximate_medial_axis().

473 {
474  GSERIALIZED *input0, *input1, *output;
475  sfcgal_geometry_t *geom0, *geom1;
476  sfcgal_geometry_t *result;
477  srid_t srid;
478 
480 
481  input0 = PG_GETARG_GSERIALIZED_P(0);
482  srid = gserialized_get_srid(input0);
483  input1 = PG_GETARG_GSERIALIZED_P(1);
484  geom0 = POSTGIS2SFCGALGeometry(input0);
485  PG_FREE_IF_COPY(input0, 0);
486  geom1 = POSTGIS2SFCGALGeometry(input1);
487  PG_FREE_IF_COPY(input1, 1);
488 
489  result = sfcgal_geometry_intersection(geom0, geom1);
490  sfcgal_geometry_delete(geom0);
491  sfcgal_geometry_delete(geom1);
492 
493  output = SFCGALGeometry2POSTGIS(result, 0, srid);
494  sfcgal_geometry_delete(result);
495 
496  PG_RETURN_POINTER(output);
497 }
sfcgal_geometry_t * POSTGIS2SFCGALGeometry(GSERIALIZED *pglwgeom)
GSERIALIZED * SFCGALGeometry2POSTGIS(const sfcgal_geometry_t *geom, int force3D, int SRID)
void sfcgal_postgis_init(void)
int32_t gserialized_get_srid(const GSERIALIZED *s)
Extract the SRID from the serialized form (it is packed into three bytes so this is a handy function)...
Definition: g_serialized.c:99
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