PostGIS  2.5.0beta2dev-r@@SVN_REVISION@@

◆ relate_pattern()

Datum relate_pattern ( PG_FUNCTION_ARGS  )

Definition at line 2388 of file postgis/lwgeom_geos.c.

References error_if_srid_mismatch(), errorIfGeometryCollection(), gserialized_get_srid(), HANDLE_GEOS_ERROR, lwgeom_geos_error(), PG_FUNCTION_INFO_V1(), POSTGIS2GEOS(), and relate_full().

Referenced by disjoint().

2389 {
2390  GSERIALIZED *geom1;
2391  GSERIALIZED *geom2;
2392  char *patt;
2393  char result;
2394  GEOSGeometry *g1, *g2;
2395  size_t i;
2396 
2397  geom1 = PG_GETARG_GSERIALIZED_P(0);
2398  geom2 = PG_GETARG_GSERIALIZED_P(1);
2399 
2400  /* TODO handle empty */
2401 
2402  errorIfGeometryCollection(geom1,geom2);
2404 
2405  initGEOS(lwpgnotice, lwgeom_geos_error);
2406 
2407  g1 = POSTGIS2GEOS(geom1);
2408  if (!g1)
2409  HANDLE_GEOS_ERROR("First argument geometry could not be converted to GEOS");
2410  g2 = POSTGIS2GEOS(geom2);
2411  if (!g2)
2412  {
2413  GEOSGeom_destroy(g1);
2414  HANDLE_GEOS_ERROR("Second argument geometry could not be converted to GEOS");
2415  }
2416 
2417  patt = DatumGetCString(DirectFunctionCall1(textout,
2418  PointerGetDatum(PG_GETARG_DATUM(2))));
2419 
2420  /*
2421  ** Need to make sure 't' and 'f' are upper-case before handing to GEOS
2422  */
2423  for ( i = 0; i < strlen(patt); i++ )
2424  {
2425  if ( patt[i] == 't' ) patt[i] = 'T';
2426  if ( patt[i] == 'f' ) patt[i] = 'F';
2427  }
2428 
2429  result = GEOSRelatePattern(g1,g2,patt);
2430  GEOSGeom_destroy(g1);
2431  GEOSGeom_destroy(g2);
2432  pfree(patt);
2433 
2434  if (result == 2) HANDLE_GEOS_ERROR("GEOSRelatePattern");
2435 
2436  PG_FREE_IF_COPY(geom1, 0);
2437  PG_FREE_IF_COPY(geom2, 1);
2438 
2439  PG_RETURN_BOOL(result);
2440 }
void error_if_srid_mismatch(int srid1, int srid2)
Definition: lwutil.c:338
void lwgeom_geos_error(const char *fmt,...)
GEOSGeometry * POSTGIS2GEOS(GSERIALIZED *pglwgeom)
#define HANDLE_GEOS_ERROR(label)
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
void errorIfGeometryCollection(GSERIALIZED *g1, GSERIALIZED *g2)
Throws an ereport ERROR if either geometry is a COLLECTIONTYPE.
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