PostGIS  2.5.0dev-r@@SVN_REVISION@@

◆ relate_pattern()

Datum relate_pattern ( PG_FUNCTION_ARGS  )

Definition at line 2566 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().

2567 {
2568  GSERIALIZED *geom1;
2569  GSERIALIZED *geom2;
2570  char *patt;
2571  bool result;
2572  GEOSGeometry *g1, *g2;
2573  size_t i;
2574 
2575  geom1 = PG_GETARG_GSERIALIZED_P(0);
2576  geom2 = PG_GETARG_GSERIALIZED_P(1);
2577 
2578  /* TODO handle empty */
2579 
2580  errorIfGeometryCollection(geom1,geom2);
2582 
2583  initGEOS(lwpgnotice, lwgeom_geos_error);
2584 
2585  g1 = POSTGIS2GEOS(geom1);
2586  if (!g1)
2587  HANDLE_GEOS_ERROR("First argument geometry could not be converted to GEOS");
2588  g2 = POSTGIS2GEOS(geom2);
2589  if (!g2)
2590  {
2591  GEOSGeom_destroy(g1);
2593  "Second argument geometry could not be converted to GEOS");
2594  }
2595 
2596  patt = DatumGetCString(DirectFunctionCall1(textout,
2597  PointerGetDatum(PG_GETARG_DATUM(2))));
2598 
2599  /*
2600  ** Need to make sure 't' and 'f' are upper-case before handing to GEOS
2601  */
2602  for ( i = 0; i < strlen(patt); i++ )
2603  {
2604  if ( patt[i] == 't' ) patt[i] = 'T';
2605  if ( patt[i] == 'f' ) patt[i] = 'F';
2606  }
2607 
2608  result = GEOSRelatePattern(g1,g2,patt);
2609  GEOSGeom_destroy(g1);
2610  GEOSGeom_destroy(g2);
2611  pfree(patt);
2612 
2613  if (result == 2) HANDLE_GEOS_ERROR("GEOSRelatePattern");
2614 
2615  PG_FREE_IF_COPY(geom1, 0);
2616  PG_FREE_IF_COPY(geom2, 1);
2617 
2618  PG_RETURN_BOOL(result);
2619 }
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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