PostGIS  2.5.7dev-r@@SVN_REVISION@@

◆ sfcgal_union()

Datum sfcgal_union ( PG_FUNCTION_ARGS  )

Definition at line 586 of file postgis/lwgeom_sfcgal.c.

587 {
588  GSERIALIZED *input0, *input1, *output;
589  sfcgal_geometry_t *geom0, *geom1;
590  sfcgal_geometry_t *result;
591  srid_t srid;
592 
594 
595  input0 = (GSERIALIZED*) PG_DETOAST_DATUM(PG_GETARG_DATUM(0));
596  srid = gserialized_get_srid(input0);
597  input1 = (GSERIALIZED*) PG_DETOAST_DATUM(PG_GETARG_DATUM(1));
598  geom0 = POSTGIS2SFCGALGeometry(input0);
599  PG_FREE_IF_COPY(input0, 0);
600  geom1 = POSTGIS2SFCGALGeometry(input1);
601  PG_FREE_IF_COPY(input1, 1);
602 
603  result = sfcgal_geometry_union(geom0, geom1);
604  sfcgal_geometry_delete(geom0);
605  sfcgal_geometry_delete(geom1);
606 
607  output = SFCGALGeometry2POSTGIS(result, 0, srid);
608  sfcgal_geometry_delete(result);
609 
610  PG_RETURN_POINTER(output);
611 }
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:100
sfcgal_geometry_t * POSTGIS2SFCGALGeometry(GSERIALIZED *pglwgeom)
void sfcgal_postgis_init(void)
GSERIALIZED * SFCGALGeometry2POSTGIS(const sfcgal_geometry_t *geom, int force3D, int SRID)

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

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