Why are my curved polygon boundaries not preserved when validating topology?

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03-25-2016 11:26 AM
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ChristopherAnderson3
New Contributor

I'm attempting to redraw and validate topology on our Zoning layer, with three rules:  Must Not Have Overlap, Must Not Have Gaps, and Area Boundary Must be Covered By Boundary (of our tax parcels, in this case).  When drawing Zoning polygons that have true curves (to match parcels), we're noticing that after validating the topology, the true curves are broken into lots of vertices instead.  In some cases, this introduces topology errors, but in a lot of cases, it does not.  If the underlying parcels have true curves, why is this happening, and why are there not more topology errors as a result?

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ChrisDonohue__GISP
MVP Alum

This does sound odd.  Can you provide some information to help in troubleshooting this:

  • What version of ArcMap are you using?
  • Is the topology being run in a File Geodatabase, Personal Geodatabase, Enterprise Geodatabase (SDE), or another data type?
  • If it is an Enterprise Geodatabase, is it tied to SQL Server, Oracle, Informix?  What version?
  • Are you using a Parcel Fabric?
  • What XY Resolution and XY Tolerance is being used?
  • What method/process is being used to draw the Zoning Polygons?

Chris Donohue, GISP

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