PostGIS  2.5.0dev-r@@SVN_REVISION@@
Datum LWGEOM_force_3dz ( PG_FUNCTION_ARGS  )

Definition at line 385 of file lwgeom_functions_basic.c.

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

386 {
387  GSERIALIZED *pg_geom_in = PG_GETARG_GSERIALIZED_P(0);
388  GSERIALIZED *pg_geom_out;
389  LWGEOM *lwg_in, *lwg_out;
390 
391  /* already 3d */
392  if ( gserialized_ndims(pg_geom_in) == 3 && gserialized_has_z(pg_geom_in) )
393  PG_RETURN_POINTER(pg_geom_in);
394 
395  lwg_in = lwgeom_from_gserialized(pg_geom_in);
396  lwg_out = lwgeom_force_3dz(lwg_in);
397  pg_geom_out = geometry_serialize(lwg_out);
398  lwgeom_free(lwg_out);
399  lwgeom_free(lwg_in);
400 
401  PG_FREE_IF_COPY(pg_geom_in, 0);
402  PG_RETURN_POINTER(pg_geom_out);
403 }
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
LWGEOM * lwgeom_force_3dz(const LWGEOM *geom)
Definition: lwgeom.c:783
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1137
int gserialized_ndims(const GSERIALIZED *gser)
Return the number of dimensions (2, 3, 4) in a geometry.
Definition: g_serialized.c:60
int gserialized_has_z(const GSERIALIZED *gser)
Check if a GSERIALIZED has a Z ordinate.
Definition: g_serialized.c:45
GSERIALIZED * geometry_serialize(LWGEOM *lwgeom)

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