elementView.getBBox([opt])
Return a bounding box for an element view. If opt.useModelGeometry
option is set to true
, the resulting bounding box will be calculated
based on the element model dimensions (so that SVG sub elements sticking out
of the element will be excluded). The difference from
dia.Element.prototype.getBBox is that in this case, the bounding box will be adjusted based on the
joint.dia.Paper
translate and scale.