# How to automatically calculate the maximum diameter of a plane profile

**URL:** <https://discourse.slicer.org/t/how-to-automatically-calculate-the-maximum-diameter-of-a-plane-profile/37096>\
**Category:** Support\
**Tags:** segmentation, segmentations, segment-editor\
**Created:** [June 29, 2024, 4:35am UTC](https://discourse.slicer.org/t/how-to-automatically-calculate-the-maximum-diameter-of-a-plane-profile/37096 "2024-06-29T04:35:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![xuxu](https://avatars.discourse-cdn.com/v4/letter/x/f0a364/32.png) [@xuxu](https://discourse.slicer.org/u/xuxu)\
**Post date:** [June 29, 2024, 4:35am UTC](https://discourse.slicer.org/t/how-to-automatically-calculate-the-maximum-diameter-of-a-plane-profile/37096/1 "2024-06-29T04:35:50Z")

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![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/e/b/eb1e14840c262040a5339c04d342d955845e88b6.jpeg)  
How to automatically calculate the maximum diameter of a plane profile？  
for example，as shown above，Circle the two plane Outlines, and then you can find the value with the largest diameter in both planes