Got to playing around with TopicMap like structures. Results at
http://www.thinkalong.com/Nexist/tgLivingThing.gif
Decided to post the source code in its present state
http://www.thinkalong.com/Nexist/tgsrc.zip
Nodes now paint themselves.
Nodes now have a shell of a NodePropertySheet, which has a shell of a
PropertySheetEditor dialog.
None of that is wired yet.
There is no first node on boot.
There is no drag to add a node. Drag only adds edges.
All nodes are added by right click of the mouse.
What's needed now:
fiddle with node placement -- right now, drop a node on the canvas and it
wanders off screen and you have to scroll around to find it.
make edges paint themselves and allow them to have colors (a color ontology).
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.
Now, we can begin to write an XML import/export routine for it. My plan is
to grab the XTM import/export I already have, and, perhaps, my
persistentXTM system as well (saves to RDBMS).
Lots to think about.
Cheers
Jack
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