# Group mean shape by using shapeVariationAnalyzer

**URL:** <https://discourse.slicer.org/t/group-mean-shape-by-using-shapevariationanalyzer/3044>\
**Category:** Support\
**Tags:** extensions-manager\
**Created:** [June 1, 2018, 3:50pm UTC](https://discourse.slicer.org/t/group-mean-shape-by-using-shapevariationanalyzer/3044 "2018-06-01T15:50:25Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Hamed\_RABIEI](https://avatars.discourse-cdn.com/v4/letter/h/a5b964/32.png) [@Hamed\_RABIEI](https://discourse.slicer.org/u/Hamed_RABIEI)\
**Post date:** [June 1, 2018, 3:50pm UTC](https://discourse.slicer.org/t/group-mean-shape-by-using-shapevariationanalyzer/3044/1 "2018-06-01T15:50:25Z")

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Hi,

I am using shapeVariationAnalyzer module to compute the mean shape of some 3D triangulated hippocampus surfaces. Inputs are proper vtk mesh files. The module works without raising any error, however, the output is a corrupted triangulation. Do you have any idea why this happens?

An example of the input meshes is given here ([https://ibb.co/jdUVnd](https://ibb.co/jdUVnd))  
Output mesh is given here ([https://ibb.co/mcsGSd](https://ibb.co/mcsGSd))

Thank you in advance,  
Hamed

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**Author:** ![timeanddoctor](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/timeanddoctor/32/5839_2.png) [@timeanddoctor](https://discourse.slicer.org/u/timeanddoctor)\
**Post date:** [June 6, 2018, 10:52am UTC](https://discourse.slicer.org/t/group-mean-shape-by-using-shapevariationanalyzer/3044/2 "2018-06-06T10:52:43Z")

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Did you tried with a stable version

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<div class="post-metadata">

**Author:** ![Hamed\_RABIEI](https://avatars.discourse-cdn.com/v4/letter/h/a5b964/32.png) [@Hamed\_RABIEI](https://discourse.slicer.org/u/Hamed_RABIEI)\
**Post date:** [June 7, 2018, 8:05am UTC](https://discourse.slicer.org/t/group-mean-shape-by-using-shapevariationanalyzer/3044/4 "2018-06-07T08:05:06Z")

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Yes, I am using the version 4.8.1