public float getCy2() {
        return mCy2;
    }
This view serves several purposes. The main one is as a visualizer of the timing
curve, which it displays on a 1x1 grid. Additionally, a red ball animates along the
curve when the animation is run to help visualize how the curve affects the motion
of the object. Finally, when the curve is defined by a PathInterpolator, handles for
the path's control points are displayed and can be moved around to change the path.
AnimationsInterpolatorPlayground/app/src/main/java/com/example/android/interpolatorplayground/CurveVisualizer.java