PROBLEM

Centroids are placed outside of polygon boundaries in ArcGIS Online

Last Published: April 25, 2020

Description

In ArcGIS Online, when creating centroids for polygon features using the Find Centroids tool, the centroids are placed off-center or outside of polygon boundaries.

image of Centroids outside of polygons

Cause

The Find Centroids tool is run on complex polygons with the true centroid option enabled. The centroids are created at an average position relative to the vertices in the shape, but not necessarily within it, as shown in the image above.

Solution or Workaround

When using the Find Centroids tool, select the option contained by input features in the Show me output locations parameter, and run the analysis. This results in output centroid points located inside or contained by the bounds of the input feature.

Select contained by input features in Find Centroids
Select contained by input features

Article ID:000017716

Software:
  • ArcGIS Online

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