PostGIS  2.5.0dev-r@@SVN_REVISION@@

◆ LWGEOM_shortestline3d()

Datum LWGEOM_shortestline3d ( PG_FUNCTION_ARGS  )

Definition at line 856 of file lwgeom_functions_basic.c.

References error_if_srid_mismatch(), geometry_serialize(), lwgeom_closest_line_3d(), lwgeom_free(), lwgeom_from_gserialized(), lwgeom_is_empty(), LWGEOM_longestline3d(), PG_FUNCTION_INFO_V1(), and LWGEOM::srid.

Referenced by LWGEOM_closestpoint3d().

857 {
858  GSERIALIZED *result;
859  GSERIALIZED *geom1 = PG_GETARG_GSERIALIZED_P(0);
860  GSERIALIZED *geom2 = PG_GETARG_GSERIALIZED_P(1);
861  LWGEOM *theline;
862  LWGEOM *lwgeom1 = lwgeom_from_gserialized(geom1);
863  LWGEOM *lwgeom2 = lwgeom_from_gserialized(geom2);
864 
865  error_if_srid_mismatch(lwgeom1->srid, lwgeom2->srid);
866 
867  theline = lwgeom_closest_line_3d(lwgeom1, lwgeom2);
868  // theline = lw_dist3d_distanceline(lwgeom1, lwgeom2, lwgeom1->srid, DIST_MIN);
869 
870  if (lwgeom_is_empty(theline))
871  PG_RETURN_NULL();
872 
873  result = geometry_serialize(theline);
874 
875  lwgeom_free(theline);
876  lwgeom_free(lwgeom1);
877  lwgeom_free(lwgeom2);
878 
879  PG_FREE_IF_COPY(geom1, 0);
880  PG_FREE_IF_COPY(geom2, 1);
881  PG_RETURN_POINTER(result);
882 }
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1144
LWGEOM * lwgeom_closest_line_3d(const LWGEOM *lw1, const LWGEOM *lw2)
Definition: measures3d.c:88
void error_if_srid_mismatch(int srid1, int srid2)
Definition: lwutil.c:338
int32_t srid
Definition: liblwgeom.h:401
GSERIALIZED * geometry_serialize(LWGEOM *lwgeom)
int lwgeom_is_empty(const LWGEOM *geom)
Return true or false depending on whether a geometry is an "empty" geometry (no vertices members) ...
Definition: lwgeom.c:1393
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