    @Test
    public void getHue() {

        float hue = Utils.getHue(0, 0, 100, 120, 360);
        Assert.assertEquals(hue, 120, 0.1);

        hue = Utils.getHue(4, 1, 7, 90, 180);
        Assert.assertEquals(hue, 135, 0.1);
    }