Strange lines radiate from data drawn with double line symbol in ArcMap

Last Published: April 25, 2020


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Strange lines radiate to the upper left corner, and to the bottom of the ArcMap draw window, when data is symbolized with a double line symbol.
[O-Image] Example of radiating lines


The display problem is caused by intersection errors in the data.

Solution or Workaround

  • For ArcInfo coverages, change the FUZZY tolerance to a lower value. For example,

    Arc: tolerance <coverage_name> fuzzy .001


    Import the coverage line features to a file geodatabase.
  • For CAD data, import the polyline feature class from the CAD file to a file geodatabase.

Article ID:000009386

  • ArcMap

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