PostGIS  2.2.8dev-r@@SVN_REVISION@@

◆ LWGEOM_dwithin3d()

Datum LWGEOM_dwithin3d ( PG_FUNCTION_ARGS  )

Definition at line 928 of file lwgeom_functions_basic.c.

References error_if_srid_mismatch(), LWGEOM_dfullywithin3d(), lwgeom_from_gserialized(), lwgeom_mindistance3d_tolerance(), PG_FUNCTION_INFO_V1(), and LWGEOM::srid.

Referenced by LWGEOM_mindistance3d().

929 {
930  double mindist;
931  GSERIALIZED *geom1 = PG_GETARG_GSERIALIZED_P(0);
932  GSERIALIZED *geom2 = PG_GETARG_GSERIALIZED_P(1);
933  double tolerance = PG_GETARG_FLOAT8(2);
934  LWGEOM *lwgeom1 = lwgeom_from_gserialized(geom1);
935  LWGEOM *lwgeom2 = lwgeom_from_gserialized(geom2);
936 
937  if ( tolerance < 0 )
938  {
939  elog(ERROR,"Tolerance cannot be less than zero\n");
940  PG_RETURN_NULL();
941  }
942 
943  error_if_srid_mismatch(lwgeom1->srid, lwgeom2->srid);
944 
945  mindist = lwgeom_mindistance3d_tolerance(lwgeom1,lwgeom2,tolerance);
946 
947  PG_FREE_IF_COPY(geom1, 0);
948  PG_FREE_IF_COPY(geom2, 1);
949 
950  /*empty geometries cases should be right handled since return from underlying
951  functions should be FLT_MAX which causes false as answer*/
952  PG_RETURN_BOOL(tolerance >= mindist);
953 }
double lwgeom_mindistance3d_tolerance(const LWGEOM *lw1, const LWGEOM *lw2, double tolerance)
Function handling 3d min distance calculations and dwithin calculations.
Definition: measures3d.c:339
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
void error_if_srid_mismatch(int srid1, int srid2)
Definition: lwutil.c:341
int32_t srid
Definition: liblwgeom.h:383
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