PostGIS  2.3.8dev-r@@SVN_REVISION@@

◆ LWGEOM_dwithin3d()

Datum LWGEOM_dwithin3d ( PG_FUNCTION_ARGS  )

Definition at line 943 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().

944 {
945  double mindist;
946  GSERIALIZED *geom1 = PG_GETARG_GSERIALIZED_P(0);
947  GSERIALIZED *geom2 = PG_GETARG_GSERIALIZED_P(1);
948  double tolerance = PG_GETARG_FLOAT8(2);
949  LWGEOM *lwgeom1 = lwgeom_from_gserialized(geom1);
950  LWGEOM *lwgeom2 = lwgeom_from_gserialized(geom2);
951 
952  if ( tolerance < 0 )
953  {
954  elog(ERROR,"Tolerance cannot be less than zero\n");
955  PG_RETURN_NULL();
956  }
957 
958  error_if_srid_mismatch(lwgeom1->srid, lwgeom2->srid);
959 
960  mindist = lwgeom_mindistance3d_tolerance(lwgeom1,lwgeom2,tolerance);
961 
962  PG_FREE_IF_COPY(geom1, 0);
963  PG_FREE_IF_COPY(geom2, 1);
964 
965  /*empty geometries cases should be right handled since return from underlying
966  functions should be FLT_MAX which causes false as answer*/
967  PG_RETURN_BOOL(tolerance >= mindist);
968 }
double lwgeom_mindistance3d_tolerance(const LWGEOM *lw1, const LWGEOM *lw2, double tolerance)
Function handling 3d min distance calculations and dwithin calculations.
Definition: measures3d.c:363
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:369
int32_t srid
Definition: liblwgeom.h:398
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