Function spatialite_sys::gaiaIsPointOnRingSurface

pub unsafe extern "C" fn gaiaIsPointOnRingSurface(
    ring: gaiaRingPtr, 
    pt_x: f64, 
    pt_y: f64
) -> c_int

Check if a Point lays on a Ring surface

\param ring pointer to Ring object \param pt_x Point X coordinate \param pt_y Point Y coordinate

\return 0 if false: any other value if true