@Test
public void testStretch16_9() {

    RectangleF r169 = new RectangleF(0,0,1280,720);
    RectangleF stretch169 = AspectHelper.stretch(r169, r169.getAR());
    Rectangle trans = stretch169.translateImmutable(r169, new RectangleF(0,0,1920,1080)).asIntRect();
    System.out.println(trans);
    assertEquals(-320, trans.x);
    assertEquals(0, trans.y);
    assertEquals(2560, trans.width);
    assertEquals(1080, trans.height);
}