PostGIS  2.2.7dev-r@@SVN_REVISION@@
Datum sfcgal_union ( PG_FUNCTION_ARGS  )

Definition at line 574 of file postgis/lwgeom_sfcgal.c.

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

575 {
576  GSERIALIZED *input0, *input1, *output;
577  sfcgal_geometry_t *geom0, *geom1;
578  sfcgal_geometry_t *result;
579  srid_t srid;
580 
582 
583  input0 = (GSERIALIZED*) PG_DETOAST_DATUM(PG_GETARG_DATUM(0));
584  srid = gserialized_get_srid(input0);
585  input1 = (GSERIALIZED*) PG_DETOAST_DATUM(PG_GETARG_DATUM(1));
586  geom0 = POSTGIS2SFCGALGeometry(input0);
587  PG_FREE_IF_COPY(input0, 0);
588  geom1 = POSTGIS2SFCGALGeometry(input1);
589  PG_FREE_IF_COPY(input1, 1);
590 
591  result = sfcgal_geometry_union(geom0, geom1);
592  sfcgal_geometry_delete(geom0);
593  sfcgal_geometry_delete(geom1);
594 
595  output = SFCGALGeometry2POSTGIS(result, 0, srid);
596  sfcgal_geometry_delete(result);
597 
598  PG_RETURN_POINTER(output);
599 }
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:69

Here is the call graph for this function: