link.transition(path, value [, opt])

Allows changing of the link properties gradually over a period of time. This is method is analogous to the transition method of joint.dia.Element.

link.transition('target', { x: 250, y: 250 }, {
    delay: 100,
    duration: 500,
    timingFunction: joint.util.timing.bounce,
    valueFunction: joint.util.interpolate.object
// will start changing the link target coordinates in 100ms, for period of 500ms and performing a bounce effect.