PostGIS  2.5.0dev-r@@SVN_REVISION@@
Datum LWGEOM_longestline3d ( PG_FUNCTION_ARGS  )

Definition at line 885 of file lwgeom_functions_basic.c.

References error_if_srid_mismatch(), geometry_serialize(), lwgeom_free(), lwgeom_from_gserialized(), lwgeom_furthest_line_3d(), lwgeom_is_empty(), and LWGEOM::srid.

886 {
887  GSERIALIZED *result;
888  GSERIALIZED *geom1 = PG_GETARG_GSERIALIZED_P(0);
889  GSERIALIZED *geom2 = PG_GETARG_GSERIALIZED_P(1);
890  LWGEOM *theline;
891  LWGEOM *lwgeom1 = lwgeom_from_gserialized(geom1);
892  LWGEOM *lwgeom2 = lwgeom_from_gserialized(geom2);
893 
894  error_if_srid_mismatch(lwgeom1->srid, lwgeom2->srid);
895 
896  theline = lwgeom_furthest_line_3d(lwgeom1, lwgeom2);
897  // theline = lw_dist3d_distanceline(lwgeom1, lwgeom2, lwgeom1->srid, DIST_MAX);
898 
899  if (lwgeom_is_empty(theline))
900  PG_RETURN_NULL();
901 
902  result = geometry_serialize(theline);
903 
904  lwgeom_free(theline);
905  lwgeom_free(lwgeom1);
906  lwgeom_free(lwgeom2);
907 
908  PG_FREE_IF_COPY(geom1, 0);
909  PG_FREE_IF_COPY(geom2, 1);
910  PG_RETURN_POINTER(result);
911 }
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1137
void error_if_srid_mismatch(int srid1, int srid2)
Definition: lwutil.c:338
LWGEOM * lwgeom_furthest_line_3d(LWGEOM *lw1, LWGEOM *lw2)
Definition: measures3d.c:94
int32_t srid
Definition: liblwgeom.h:398
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:1386

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