[−][src]Function spatialite_sys::gaiaGeomCollLength_r
pub unsafe extern "C" fn gaiaGeomCollLength_r(
p_cache: *const c_void,
geom: gaiaGeomCollPtr,
length: *mut f64
) -> c_int
Measures the total Length for a Geometry object
\param p_cache a memory pointer returned by spatialite_alloc_connection() \param geom pointer to Geometry object \param length on completion this variable will contain the measured length
\return 0 on failure: any other value on success
\sa gaiaGeomCollLenght, gaiaGeomCollArea, gaiaMeasureLength, gaiaGeomCollLengthOrPerimeter
\note reentrant and thread-safe.
\remark \b GEOS support required.