PostGIS  2.2.8dev-r@@SVN_REVISION@@

◆ sfcgal_minkowski_sum()

Datum sfcgal_minkowski_sum ( PG_FUNCTION_ARGS  )

Definition at line 651 of file postgis/lwgeom_sfcgal.c.

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

Referenced by sfcgal_volume().

652 {
653  GSERIALIZED *input0, *input1, *output;
654  sfcgal_geometry_t *geom0, *geom1;
655  sfcgal_geometry_t *result;
656  srid_t srid;
657 
659 
660  input0 = PG_GETARG_GSERIALIZED_P(0);
661  srid = gserialized_get_srid(input0);
662  input1 = PG_GETARG_GSERIALIZED_P(1);
663  geom0 = POSTGIS2SFCGALGeometry(input0);
664  PG_FREE_IF_COPY(input0, 0);
665  geom1 = POSTGIS2SFCGALGeometry(input1);
666  PG_FREE_IF_COPY(input1, 1);
667 
668  result = sfcgal_geometry_minkowski_sum(geom0, geom1);
669  sfcgal_geometry_delete(geom0);
670  sfcgal_geometry_delete(geom1);
671 
672  output = SFCGALGeometry2POSTGIS(result, 0, srid);
673  sfcgal_geometry_delete(result);
674 
675  PG_RETURN_POINTER(output);
676 }
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
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