0

Sometimes when I am drawing ellipses in a polygon shapefile, they save correctly and then simplify themselves into angular shapes. I don't understand why this is happening or only happens sometimes, but it's been a consistent--if intermittent--issue in versions 2.6, 2.8 and 2.9.

The two diamond shapes in the below image were drawn using the create > draw ellipse template. They looked fine but after saving, zooming out and back in, they became angular. Is there a way to prevent this from happening?

example of angular shapes created using the create ellipse template

Edited:

Coordinate system is: NAD 83 State Plane North Carolina (US Feet).

As for sizes, the smaller one is about 2.5 x 1ft and the larger is about 5 x 1 ft at their widest. But I have larger ovals turning into many-sided.

The XY Resolution is 0.000000027498... US Survey Feet. The XY Tolerance is 0.003280333 US Survey Feet.

Correction:
I mistakenly assumed this was a feature class from a geodatabase but instead is a shapefile created in Arc Desktop 10.8.1. Would that make a difference in how ArcGIS Pro is reading this file?

6
  • What coordinate system are you working in? How large are your ovals?
    – PolyGeo
    Commented Feb 21, 2022 at 22:19
  • NAD 83 State Plane North Carolina (US Feet). The smaller one is about 2.5 x 1ft and the larger is about 5 x 1 ft at their widest.
    – meag
    Commented Feb 21, 2022 at 22:31
  • I have another one at about 10ft x 12ft that has done something similar, but it's become a ~16-sided polygon instead of something as dramatic as these smaller examples.
    – meag
    Commented Feb 21, 2022 at 22:39
  • Please use the edit button beneath your question to revise it with any requested clarifications.
    – PolyGeo
    Commented Feb 21, 2022 at 22:51
  • I suspect this may have something to do with the resolution on your feature class. pro.arcgis.com/en/pro-app/2.8/tool-reference/…
    – Fezter
    Commented Feb 22, 2022 at 5:44

0

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Browse other questions tagged or ask your own question.