PostGIS  2.5.0beta1dev-r@@SVN_REVISION@@

◆ sfcgal_straight_skeleton()

Datum sfcgal_straight_skeleton ( PG_FUNCTION_ARGS  )

Definition at line 415 of file postgis/lwgeom_sfcgal.c.

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

Referenced by sfcgal_force_lhr().

416 {
417  GSERIALIZED *input, *output;
418  sfcgal_geometry_t *geom;
419  sfcgal_geometry_t *result;
420  srid_t srid;
421 
423 
424  input = PG_GETARG_GSERIALIZED_P(0);
425  srid = gserialized_get_srid(input);
426  geom = POSTGIS2SFCGALGeometry(input);
427  PG_FREE_IF_COPY(input, 0);
428 
429  result = sfcgal_geometry_straight_skeleton(geom);
430  sfcgal_geometry_delete(geom);
431 
432  output = SFCGALGeometry2POSTGIS(result, 0, srid);
433  sfcgal_geometry_delete(result);
434 
435  PG_RETURN_POINTER(output);
436 }
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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