PostGIS  2.5.7dev-r@@SVN_REVISION@@

◆ LWGEOM_mindistance3d()

Datum LWGEOM_mindistance3d ( PG_FUNCTION_ARGS  )

Definition at line 919 of file lwgeom_functions_basic.c.

920 {
921  double mindist;
922  GSERIALIZED *geom1 = PG_GETARG_GSERIALIZED_P(0);
923  GSERIALIZED *geom2 = PG_GETARG_GSERIALIZED_P(1);
924  LWGEOM *lwgeom1 = lwgeom_from_gserialized(geom1);
925  LWGEOM *lwgeom2 = lwgeom_from_gserialized(geom2);
926 
927  error_if_srid_mismatch(lwgeom1->srid, lwgeom2->srid);
928 
929  mindist = lwgeom_mindistance3d(lwgeom1, lwgeom2);
930 
931  PG_FREE_IF_COPY(geom1, 0);
932  PG_FREE_IF_COPY(geom2, 1);
933 
934  /*if called with empty geometries the ingoing mindistance is untouched, and makes us return NULL*/
935  if (mindist<FLT_MAX)
936  PG_RETURN_FLOAT8(mindist);
937 
938  PG_RETURN_NULL();
939 }
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:338
double lwgeom_mindistance3d(const LWGEOM *lw1, const LWGEOM *lw2)
Function initializing 3d min distance calculation.
Definition: measures3d.c:352
int32_t srid
Definition: liblwgeom.h:402

References error_if_srid_mismatch(), lwgeom_from_gserialized(), lwgeom_mindistance3d(), and LWGEOM::srid.

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