Function spatialite_sys::gaiaBoundary_r

pub unsafe extern "C" fn gaiaBoundary_r(
    p_cache: *const c_void, 
    geom: gaiaGeomCollPtr
) -> gaiaGeomCollPtr

Spatial operator: Boundary

\param p_cache a memory pointer returned by spatialite_alloc_connection() \param geom the Geometry object to be evaluated

\return the pointer to newly created Geometry object representing the geometry Boundary of the input Geometry: NULL on failure.

\sa gaiaBoudary, gaiaFreeGeomColl

\note you are responsible to destroy (before or after) any allocated Geometry, this including any Geometry returned by gaiaBoundary_r()\n reentrant and thread-safe.

\remark \b GEOS support required.