# very large 3D cube ?

**URL:** <https://discourse.slicer.org/t/very-large-3d-cube/5889>\
**Category:** Support\
**Created:** [February 22, 2019, 2:40pm UTC](https://discourse.slicer.org/t/very-large-3d-cube/5889 "2019-02-22T14:40:21Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![meduser](https://avatars.discourse-cdn.com/v4/letter/m/f9ae1b/32.png) [@meduser](https://discourse.slicer.org/u/meduser)\
**Post date:** [February 22, 2019, 2:40pm UTC](https://discourse.slicer.org/t/very-large-3d-cube/5889/1 "2019-02-22T14:40:21Z")

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Operating system: Mac  
Slicer version: 4.10.1  
Please help: Working on segmentation. The 3D cube that is seen surrounding the 3D volume renderings is shown as a very tall rectangle, with my actual CT volume data and segmentation occupying just a fraction of it, at the very top of the long rectangle. What is causing this, and how can I make the 3D cube be normally sized again, so as to surround my cropped working volume ? I looked at my data in the data module and nothing is so large. Thanks for any help !!!

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [February 22, 2019, 7:57pm UTC](https://discourse.slicer.org/t/very-large-3d-cube/5889/2 "2019-02-22T19:57:30Z")

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Are you able to reproduce this behavior and share a scene?

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**Author:** ![meduser](https://avatars.discourse-cdn.com/v4/letter/m/f9ae1b/32.png) [@meduser](https://discourse.slicer.org/u/meduser)\
**Post date:** [February 23, 2019, 3:07am UTC](https://discourse.slicer.org/t/very-large-3d-cube/5889/3 "2019-02-23T03:07:12Z")

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Steve, Thank you for your interest in responding. I figured it out: there were several extra “Annotation ROI” items, one of which was at the bottom of the tall volume I described. Not sure how it was part of the data. Anyways, I deleted it and the problem is solved. Thank you again,

Andres