PostGIS 3.0.6dev-r@@SVN_REVISION@@
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◆ LWGEOM_force_3dz()

Datum LWGEOM_force_3dz ( PG_FUNCTION_ARGS  )

Definition at line 387 of file lwgeom_functions_basic.c.

388{
389 GSERIALIZED *pg_geom_in = PG_GETARG_GSERIALIZED_P(0);
390 GSERIALIZED *pg_geom_out;
391 LWGEOM *lwg_in, *lwg_out;
392
393 /* already 3d */
394 if (gserialized_ndims(pg_geom_in) == 3 && gserialized_has_z(pg_geom_in))
395 PG_RETURN_POINTER(pg_geom_in);
396
397 lwg_in = lwgeom_from_gserialized(pg_geom_in);
398 lwg_out = lwgeom_force_3dz(lwg_in);
399 pg_geom_out = geometry_serialize(lwg_out);
400 lwgeom_free(lwg_out);
401 lwgeom_free(lwg_in);
402
403 PG_FREE_IF_COPY(pg_geom_in, 0);
404 PG_RETURN_POINTER(pg_geom_out);
405}
int gserialized_ndims(const GSERIALIZED *g)
Return the number of dimensions (2, 3, 4) in a geometry.
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
int gserialized_has_z(const GSERIALIZED *g)
Check if a GSERIALIZED has a Z ordinate.
void lwgeom_free(LWGEOM *geom)
Definition lwgeom.c:1138
LWGEOM * lwgeom_force_3dz(const LWGEOM *geom)
Definition lwgeom.c:781
GSERIALIZED * geometry_serialize(LWGEOM *lwgeom)

References geometry_serialize(), gserialized_has_z(), gserialized_ndims(), lwgeom_force_3dz(), lwgeom_free(), and lwgeom_from_gserialized().

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