axis.setRange(50.0, 100.0); 
        Rectangle2D dataArea = new Rectangle2D.Double(10.0, 50.0, 400.0, 300.0);
        double y1 = axis.java2DToValue(75.0, dataArea, RectangleEdge.LEFT);  
        assertEquals(y1, 95.8333333, EPSILON); 
        double y2 = axis.java2DToValue(75.0, dataArea, RectangleEdge.RIGHT);