# How to tell if vtkCutter is empty?

**URL:** https://discourse.vtk.org/t/how-to-tell-if-vtkcutter-is-empty/2203
**Category:** Support
**Created:** [December 3, 2019, 6:20pm UTC](https://discourse.vtk.org/t/how-to-tell-if-vtkcutter-is-empty/2203 "2019-12-03T18:20:08Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![msmerps](https://discourse.vtk.org/user_avatar/discourse.vtk.org/msmerps/32/1559_2.png) [@msmerps](https://discourse.vtk.org/u/msmerps)
#### Post date: [December 3, 2019, 6:20pm UTC](https://discourse.vtk.org/t/how-to-tell-if-vtkcutter-is-empty/2203/1 "2019-12-03T18:20:08Z")

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Hi everyone, I’m using vtkCutter to compute the intersection of a plane and sphere. Is there a good way for me to determine if they don’t intersect at all?  
thank you in advance,  
-Merps