[−][src]Function spatialite_sys::gaiaConvexHull_r
pub unsafe extern "C" fn gaiaConvexHull_r(
p_cache: *const c_void,
geom: gaiaGeomCollPtr
) -> gaiaGeomCollPtr
Spatial operator: ConvexHull
\param p_cache a memory pointer returned by spatialite_alloc_connection() \param geom the input Geometry object
\return the pointer to newly created Geometry object representing the ConvexHull of input Geometry: NULL on failure.
\sa gaiaConvexHull, gaiaFreeGeomColl
\note you are responsible to destroy (before or after) any allocated Geometry, this including any Geometry returned by gaiaConvexHull_r()\n reentrant and thread-safe.
\remark \b GEOS support required.