Turns you set the Geometry for a feature in the AbstractBasicFeature class, not the BasicFeature class. This meant the geometry modification was not being counted as a modification. (I'm still not sure why two edits were counted, but not a single edit. This is odd.)
At any rate, I was able to override the setGeometry method in BasicFeature to fix the problem. The Select Modified Features plug-in now detects when a single node has been moved, added to, or deleted from a feature geometry. I'll have the plug-in out in my next BizzJUMP release. Maybe this week if I get time. Wouldn't take much to port it to OJ if someone needs it. The Sunburned Surveyor On Fri, Jan 8, 2010 at 3:08 PM, Sunburned Surveyor <sunburned.surve...@gmail.com> wrote: > A while back we had a pretty intense discussion about creating a > mechanism to track modified features. I think we then decided to > modify the the BasicFeature class to track attribute modifications and > also whipped up a plug-in to track modified features. I didn't see > this plug-in included by default in the OpenJUMP 1.3.1. > > I'm trying to implement the same tracking mechanism in BizzJUMP. It > seems I'm having trouble getting this system to recognize a feature as > modified when I just move a single node. The same feature is modifed > if I move more than one node, or if I move the same node twice. As far > as I can tell, this problem doesn't seem to be in the plug-in. I also > can't see an obvious problem with the logic to track moficiations in > the BasicFeature class. > > I almost wonder if the problem is with the way JTS compares geometries > for equality. (When an attribute is set in BasicFeature it is tested > for equality. If the attribute values are equal, the change isn't > marked as a modification.) > > I'm still troubleshooting this, but I appreciate suggestions on what > might be tripping me up. If I can get this bug fixed, and there is > interest, I can create a plug-in for OpenJUMP that will select > modified features. > > Thanks for the help. > > The Sunburned Surveyor > ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
