A link of class
IlvCrossingAwareLinkImage draws a gap at the link crossings. The crossing
graphic of the link fills this gap with a bridge or tunnel shape.
You can modify the size of the gap using the method:
crossingAwareLinkImage.setGap(width);
The corresponding bridge or tunnel drawing is automatically
adapted when the gap changes.
The gap between links can follow the zoom level or be
independent of the zoom level. If the gap is zoomable, its size changes
as you zoom in and out of the view. If the gap is nonzoomable, it
remains constant during zooming. In particular with nested graphers
that have different zoom levels, it may be visually more appealing
if the gap is not zoomable.
To make gaps nonzoomable, call:
crossingAwareLinkImage.setGapZoomable(false);
Gaps are zoomable by default.