    paper.translate(x, y)

Lets you modify the origin (zero coordinates) of a paper. An origin can also be passed to the options object of the `joint.dia.Paper` constructor. If the method is called a `"translate"` event is triggered on the paper. If the method is called with no paramater the current paper `translate` transformation is returned.

    paper.translate(100, 200) // set origin to `x=100` and `y=200`
    paper.translate(100) // same as calling `translate(100,0)`
    paper.translate() // returns e.g. { tx: 100, ty: 100 }