@Override
    public double calcNormalizedEdgeDistance(double ry, double rx,
                                             double ay, double ax,
                                             double by, double bx) {
        return calcNormalizedEdgeDistance3D(
            ry, rx, 0,
            ay, ax, 0,
            by, bx, 0
        );
    }
@Test
    public void testCalcNormalizedEdgeDistance() {
        DistanceCalcEuclidean distanceCalc = new DistanceCalcEuclidean();
        double distance = distanceCalc.calcNormalizedEdgeDistance(0, 10, 0, 0, 10, 10);
        assertEquals(50, distance, 0);
    }