Triangles are drawn at the corner of a dashed line that is offset


For all types of dashed lines that have an offset value, a triangle may be noticeable for 'V' shaped segments. The higher the offset value the more noticeable this effect will be. For most small-scale maps this should not be a problem. However, zooming into one of these areas, or printing at a larger scale may make this more evident.


This is a known issue in the drawing algorithm used for offset lines. It is only a display issue and does not reflect the actually geometry of the feature.

Solution or Workaround

  • Reducing the amount of offset can minimize or eliminate the effect.
  • The error will be less evident as you zoom out of the area in question.

Article ID:000002816

  • ArcMap 8 x
  • ArcMap 9 x

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