>
>Looking at the tgLivingThing gif, one can begin to make the case that
>Bernard did earlier: rollover popup of edge properties. That's tricky,
>particularly with the curved edges -- will be tricky (methinks) to figure
>out the bounding box for mouse detection. Worth a try, however.
Nah-hah, that's the cool part. Curved edges do not pause a problem, and
you know why? Because in terms of real coordinates, the edges are not
curved. They just appear curved because they are warped by lenses.
A formula for computing the distance from point (P) to a line (L) is
simple, and it is also simple to find the point where a perpendicular line
from P to L would cross L. So now, the only tricky part is converting back
to visual coordinates, and determining when P is close enough to <P
intersect L> to warrant an edge over trigger.
Neat huh? And I guess that this feature can be implemented right now. For
some reason, before, I thought that it would have to wait for edges to
belong to nodes, rather then be out on their own. The other cool thing, is
that once edges have mouse-over sensing, then one can implement all kinds
of interfaces to manipulate them.... Drag from an edge to a node to switch
endpoint? A scrollbar to change edge tension? Lots of things.
--Alex
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