Repairing Invalid Geometries

When loading data from other geographic sources into ArcGIS you can quickly learn about expectations different systems have about feature geometry definitions, especially when dealing with geometries that are to become part of ArcGIS geometric networks. Geometries that are valid in other systems or for other purposes are not always so for geometric network features. […]
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Why Did My Trace Do That?

Ever perform an ArcGIS/ArcFM downstream (or upstream) trace and get results you did not expect? Unless your data is perfect (and I know of no perfect dataset) then I’m guessing the answer is “yes”. So, the next question is, why? There may be many answers — this article will describe some. Specifically, it will discuss […]
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