PostGIS  3.7.0dev-r@@SVN_REVISION@@

◆ LWGEOM_force_3dz()

Datum LWGEOM_force_3dz ( PG_FUNCTION_ARGS  )

Definition at line 389 of file lwgeom_functions_basic.c.

390 {
391  GSERIALIZED *pg_geom_in = PG_GETARG_GSERIALIZED_P(0);
392  GSERIALIZED *pg_geom_out;
393  LWGEOM *lwg_in, *lwg_out;
394  double z = PG_NARGS() < 2 ? 0 : PG_GETARG_FLOAT8(1);
395 
396  /* already 3d */
397  if (gserialized_ndims(pg_geom_in) == 3 && gserialized_has_z(pg_geom_in))
398  PG_RETURN_POINTER(pg_geom_in);
399 
400  lwg_in = lwgeom_from_gserialized(pg_geom_in);
401  lwg_out = lwgeom_force_3dz(lwg_in, z);
402  pg_geom_out = geometry_serialize(lwg_out);
403  lwgeom_free(lwg_out);
404  lwgeom_free(lwg_in);
405 
406  PG_FREE_IF_COPY(pg_geom_in, 0);
407  PG_RETURN_POINTER(pg_geom_out);
408 }
gserialized_ndims
int gserialized_ndims(const GSERIALIZED *g)
Return the number of dimensions (2, 3, 4) in a geometry.
Definition: gserialized.c:236
lwgeom_from_gserialized
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
Definition: gserialized.c:268
gserialized_has_z
int gserialized_has_z(const GSERIALIZED *g)
Check if a GSERIALIZED has a Z ordinate.
Definition: gserialized.c:203
lwgeom_free
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1218
lwgeom_force_3dz
LWGEOM * lwgeom_force_3dz(const LWGEOM *geom, double zval)
Definition: lwgeom.c:799

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

Here is the call graph for this function: