PostGIS  3.7.0dev-r@@SVN_REVISION@@

◆ LWGEOM_force_3dm()

Datum LWGEOM_force_3dm ( PG_FUNCTION_ARGS  )

Definition at line 412 of file lwgeom_functions_basic.c.

413 {
414  GSERIALIZED *pg_geom_in = PG_GETARG_GSERIALIZED_P(0);
415  GSERIALIZED *pg_geom_out;
416  LWGEOM *lwg_in, *lwg_out;
417  double m = PG_NARGS() < 2 ? 0 : PG_GETARG_FLOAT8(1);
418 
419  /* already 3d */
420  if (gserialized_ndims(pg_geom_in) == 3 && gserialized_has_m(pg_geom_in))
421  PG_RETURN_POINTER(pg_geom_in);
422 
423  lwg_in = lwgeom_from_gserialized(pg_geom_in);
424  lwg_out = lwgeom_force_3dm(lwg_in, m);
425  pg_geom_out = geometry_serialize(lwg_out);
426  lwgeom_free(lwg_out);
427  lwgeom_free(lwg_in);
428 
429  PG_FREE_IF_COPY(pg_geom_in, 0);
430  PG_RETURN_POINTER(pg_geom_out);
431 }
gserialized_ndims
int gserialized_ndims(const GSERIALIZED *g)
Return the number of dimensions (2, 3, 4) in a geometry.
Definition: gserialized.c:236
gserialized_has_m
int gserialized_has_m(const GSERIALIZED *g)
Check if a GSERIALIZED has an M ordinate.
Definition: gserialized.c:214
lwgeom_from_gserialized
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
Definition: gserialized.c:268
lwgeom_free
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1218
lwgeom_force_3dm
LWGEOM * lwgeom_force_3dm(const LWGEOM *geom, double mval)
Definition: lwgeom.c:805

References gserialized_has_m(), gserialized_ndims(), lwgeom_force_3dm(), lwgeom_free(), and lwgeom_from_gserialized().

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