Function spatialite_sys::gaiaIsPointOnPolygonSurface

pub unsafe extern "C" fn gaiaIsPointOnPolygonSurface(
    polyg: gaiaPolygonPtr, 
    x: f64, 
    y: f64
) -> c_int

Checks if a Point lays on a Polygon surface

\param polyg pointer to Polygon object \param x Point X coordinate \param y Point Y coordinate

\return 0 if false: any other value if true