PostGIS  3.1.6dev-r@@SVN_REVISION@@

◆ containsproperly()

Datum containsproperly ( PG_FUNCTION_ARGS  )

Definition at line 1982 of file postgis/lwgeom_geos.c.

1983 {
1984  SHARED_GSERIALIZED *shared_geom1 = ToastCacheGetGeometry(fcinfo, 0);
1985  SHARED_GSERIALIZED *shared_geom2 = ToastCacheGetGeometry(fcinfo, 1);
1986  const GSERIALIZED *geom1 = shared_gserialized_get(shared_geom1);
1987  const GSERIALIZED *geom2 = shared_gserialized_get(shared_geom2);
1988  char result;
1989  GBOX box1, box2;
1990  PrepGeomCache * prep_cache;
1991 
1992  gserialized_error_if_srid_mismatch(geom1, geom2, __func__);
1993 
1994  /* A.ContainsProperly(Empty) == FALSE */
1995  if ( gserialized_is_empty(geom1) || gserialized_is_empty(geom2) )
1996  PG_RETURN_BOOL(false);
1997 
1998  /*
1999  * short-circuit: if geom2 bounding box is not completely inside
2000  * geom1 bounding box we can return FALSE.
2001  */
2002  if ( gserialized_get_gbox_p(geom1, &box1) &&
2003  gserialized_get_gbox_p(geom2, &box2) )
2004  {
2005  if ( ! gbox_contains_2d(&box1, &box2) )
2006  PG_RETURN_BOOL(false);
2007  }
2008 
2009  initGEOS(lwpgnotice, lwgeom_geos_error);
2010 
2011  prep_cache = GetPrepGeomCache(fcinfo, shared_geom1, 0);
2012 
2013  if ( prep_cache && prep_cache->prepared_geom && prep_cache->gcache.argnum == 1 )
2014  {
2015  GEOSGeometry *g = POSTGIS2GEOS(geom2);
2016  if (!g) HANDLE_GEOS_ERROR("First argument geometry could not be converted to GEOS");
2017  result = GEOSPreparedContainsProperly( prep_cache->prepared_geom, g);
2018  GEOSGeom_destroy(g);
2019  }
2020  else
2021  {
2022  GEOSGeometry *g2;
2023  GEOSGeometry *g1;
2024 
2025  g1 = POSTGIS2GEOS(geom1);
2026  if (!g1) HANDLE_GEOS_ERROR("First argument geometry could not be converted to GEOS");
2027  g2 = POSTGIS2GEOS(geom2);
2028  if (!g2)
2029  {
2030  GEOSGeom_destroy(g1);
2031  HANDLE_GEOS_ERROR("Second argument geometry could not be converted to GEOS");
2032  }
2033  result = GEOSRelatePattern( g1, g2, "T**FF*FF*" );
2034  GEOSGeom_destroy(g1);
2035  GEOSGeom_destroy(g2);
2036  }
2037 
2038  if (result == 2) HANDLE_GEOS_ERROR("GEOSContains");
2039 
2040  PG_RETURN_BOOL(result);
2041 }
char result[OUT_DOUBLE_BUFFER_SIZE]
Definition: cu_print.c:267
int gbox_contains_2d(const GBOX *g1, const GBOX *g2)
Return LW_TRUE if the first GBOX contains the second on the 2d plane, LW_FALSE otherwise.
Definition: gbox.c:339
void gserialized_error_if_srid_mismatch(const GSERIALIZED *g1, const GSERIALIZED *g2, const char *funcname)
Definition: gserialized.c:404
int gserialized_get_gbox_p(const GSERIALIZED *g, GBOX *gbox)
Read the box from the GSERIALIZED or calculate it if necessary.
Definition: gserialized.c:65
int gserialized_is_empty(const GSERIALIZED *g)
Check if a GSERIALIZED is empty without deserializing first.
Definition: gserialized.c:152
void lwgeom_geos_error(const char *fmt,...)
PrepGeomCache * GetPrepGeomCache(FunctionCallInfo fcinfo, SHARED_GSERIALIZED *g1, SHARED_GSERIALIZED *g2)
Given a couple potential geometries and a function call context, return a prepared structure for one ...
#define HANDLE_GEOS_ERROR(label)
GEOSGeometry * POSTGIS2GEOS(const GSERIALIZED *pglwgeom)
const GEOSPreparedGeometry * prepared_geom

References gbox_contains_2d(), PrepGeomCache::gcache, GetPrepGeomCache(), gserialized_error_if_srid_mismatch(), gserialized_get_gbox_p(), gserialized_is_empty(), HANDLE_GEOS_ERROR, lwgeom_geos_error(), POSTGIS2GEOS(), PrepGeomCache::prepared_geom, and result.

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