spatialite_sys

Function gaiaGeometrySymDifference

Source 
pub unsafe extern "C" fn gaiaGeometrySymDifference(
    geom1: gaiaGeomCollPtr,
    geom2: gaiaGeomCollPtr,
) -> gaiaGeomCollPtr
Expand description

Spatial operator: SymDifference

\param geom1 the first Geometry object \param geom2 the second Geometry object

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

\sa gaiaGeometrySymDifference_r, gaiaGeometryDifference, gaiaFreeGeomColl

\note you are responsible to destroy (before or after) any allocated Geometry, this including any Geometry returned by gaiaGeometrySymDifference()\n not reentrant and thread unsafe.

\remark \b GEOS support required.