A linked parameter is a parameter whose animation is driven by the animation of another parameter. You can link any animatable parameters together — from translation to color — to create some very interesting or unusual animation conditions. For example, you could create a chameleon effect so that when object A approaches object B, it changes color. Basically, if you can animate it, you can link it.

After you link parameters, you set the values that you want the parameters to have relative to each other in certain conditions (when A does this, B does this).

Rotation of the lamp post is linked to the position of the space ship on the path. As the space ship nears the post, the post twists.