public class GeoHashUtils {

    public static void main(String[] args ){

        SpatialContext spatialContext = SpatialContext.GEO;

        Point paris_opera = new PointImpl(48.871949, 2.331601, spatialContext);
        Point montparnasse = new PointImpl(48.8436, 2.3238, spatialContext);
        Point saint_germain = new PointImpl(48.8539, 2.3344, spatialContext);

        String hash_opera = GeohashUtils.encodeLatLon(48.871949, 2.331601);

        System.out.println("hash opera         : " + hash_opera);
        System.out.println("hash montparnasse  : " + GeohashUtils.encodeLatLon(48.8436,  2.3238));
        System.out.println("hash saint-germain : " + GeohashUtils.encodeLatLon(48.8539, 2.3344));

        GeoHash geoHash = GeoHash.withCharacterPrecision(48.13, 16.28, 12);

        System.out.println("========= Geohash - java ============== ");


        System.out.println("hash opera         : " + GeoHash.withCharacterPrecision(48.8719, 2.3316, 12));
        System.out.println("hash montparnasse  : " + GeoHash.withCharacterPrecision(48.8436, 2.3238, 12));
        System.out.println("hash saint-germain : " + GeoHash.withCharacterPrecision(48.8539, 2.3344, 12));


        System.out.println("Test if Montparnasse is within 3.km cirle radius of the Eiffel Tower");

        WGS84Point eiffel = new WGS84Point(48.8582 , 2.2945);
        WGS84Point mtparnasse = new WGS84Point(48.8436, 2.3238);
        //Build a circle of 3.7km centered on the eiffel tower
        GeoHashCircleQuery geocircle = new GeoHashCircleQuery(eiffel,  3000);
        Boolean mtparnasse_in_eiffel = geocircle.contains(mtparnasse);

        System.out.println("Is Montparnasse around Eiffel tower ? : " + mtparnasse_in_eiffel);





    }
}