Function spatialite_sys::gaiaGeomCollSimplifyPreserveTopology_r

pub unsafe extern "C" fn gaiaGeomCollSimplifyPreserveTopology_r(
    p_cache: *const c_void, 
    geom: gaiaGeomCollPtr, 
    tolerance: f64
) -> gaiaGeomCollPtr

Spatial operator: Simplify [preserving topology]

\param p_cache a memory pointer returned by spatialite_alloc_connection() \param geom the input Geometry object \param tolerance approximation threshold

\return the pointer to newly created Geometry object representing the simplified Geometry [applying the Douglas-Peucker algorithm]: NULL on failure.

\sa gaiaGeomCollSimplifyPreserveTopology, gaiaFreeGeomColl, gaiaGeomCollSimplify

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

\remark \b GEOS support required.