Portals - twists in Pad++ space
The Pad++ surface as an infinite zoomable space, with objects residing at
specific x, y, zoom coordinates within that
space.
Sometimes, however, you want to be able to compare two distant locations, or to look at a zoomed out view of a document together with a close up view.
Portals allow you to do this - they introduce 'holes' in the Pad++ surface through which you look onto other regions of the Pad++ surface, or in fact onto other Pad++ surfaces.
