Mastering Windows Presentation Foundation

Easing functions

When declaring animations with WPF, we are able to utilize a powerful capability that helps us to define more specialized animations. While we normally provide a start and end value for our animations and let WPF interpolate the intermediate values, there is a way that we can affect this interpolation process.

There are a number of mathematical functions that provide complex animation paths and are known as easing functions. For example, these can accurately replicate the movement of a spring, or the bounce of a ball.

We can simply declare the appropriate easing function within the EasingFunction property of the animation. Each easing function extends the EasingFunctionBase class and has its own specific properties. For example, ...