[udig-devel] [jira] Created: (UDIG-1295) Moving a vertex representing more than side of a polygon may produce an invalid Geometry

[Jody Garnett (JIRA)]

Moving a vertex representing more than side of a polygon may produce an invalid Geometry
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                 Key: UDIG-1295
                 URL: http://jira.codehaus.org/browse/UDIG-1295
             Project: uDIG
          Issue Type: Bug
          Components: tool edit
    Affects Versions: UDIG 1.1 RC13
            Reporter: Jody Garnett
            Assignee: Jesse Eichar
            Priority: Critical


When you are zoomed out often a vertex will represent more than one coordinate in a geometry. You can move this vertex handle in order to move the group of coordinates (the coordinates are supposed to remain relative within the group).

This works fine - except when a vertex is representing coordiantes on *both* sides of a narrow polygon.

The solution here is to check to see if the Geometry is valid after moving the coordiantes - if not we can revert and display one of those strange bubble warning things.

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