PostGIS  3.1.6dev-r@@SVN_REVISION@@

◆ ST_3DDistance()

Datum ST_3DDistance ( PG_FUNCTION_ARGS  )

Definition at line 907 of file lwgeom_functions_basic.c.

908 {
909  double mindist;
910  GSERIALIZED *geom1 = PG_GETARG_GSERIALIZED_P(0);
911  GSERIALIZED *geom2 = PG_GETARG_GSERIALIZED_P(1);
912  LWGEOM *lwgeom1 = lwgeom_from_gserialized(geom1);
913  LWGEOM *lwgeom2 = lwgeom_from_gserialized(geom2);
914  gserialized_error_if_srid_mismatch(geom1, geom2, __func__);
915 
916  mindist = lwgeom_mindistance3d(lwgeom1, lwgeom2);
917 
918  PG_FREE_IF_COPY(geom1, 0);
919  PG_FREE_IF_COPY(geom2, 1);
920 
921  /*if called with empty geometries the ingoing mindistance is untouched, and makes us return NULL*/
922  if (mindist < FLT_MAX)
923  PG_RETURN_FLOAT8(mindist);
924 
925  PG_RETURN_NULL();
926 }
void gserialized_error_if_srid_mismatch(const GSERIALIZED *g1, const GSERIALIZED *g2, const char *funcname)
Definition: gserialized.c:404
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
Definition: gserialized.c:239
double lwgeom_mindistance3d(const LWGEOM *lw1, const LWGEOM *lw2)
Function initializing 3d min distance calculation.
Definition: measures3d.c:335

References gserialized_error_if_srid_mismatch(), lwgeom_from_gserialized(), and lwgeom_mindistance3d().

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