Detecting nodes as they move out of viewport on zooming

[Maven]

Hi,

I am displaying a node link diagram on canvas. I want to detect the
nodes as the nodes move out of the view on zooming. I am using
Piccolo2D.java.
Can someone guide me how to detect the nodes as soon as they move out
of view port on zooming say i can print out its label as soon as it
moves outside the view port, do i have to overwrite PzoomeventHandler
or something else.

Regards

[viny...@gmail.com]

This seems a bit old, but i have EXACTLY the same question

Maybe this could be done if

PCanvas -> Transform Coords is inside CurrentViewingNode.Bounds