public Canvas canvas() {
        Canvas canvas = new Canvas(getLowerBound(), getUpperBound());
        canvas.add(this);
        if (name != null) {
            canvas.setTitle(name);
        }
        return canvas;
    }
@Test
    public void testSurface() throws Exception {
        System.out.println("Surface");

        var canvas = Surface.of(Z, Palette.jet(256, 1.0f)).canvas();
        canvas.window();
    }