# I want to set the IJK to RAS direction matrix for all my scans I upload. 

**URL:** <https://discourse.slicer.org/t/i-want-to-set-the-ijk-to-ras-direction-matrix-for-all-my-scans-i-upload/34696>\
**Category:** Support\
**Tags:** volume\
**Created:** [March 4, 2024, 4:27pm UTC](https://discourse.slicer.org/t/i-want-to-set-the-ijk-to-ras-direction-matrix-for-all-my-scans-i-upload/34696 "2024-03-04T16:27:07Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Bartdh](https://avatars.discourse-cdn.com/v4/letter/b/db5fbb/32.png) [@Bartdh](https://discourse.slicer.org/u/Bartdh)\
**Post date:** [March 4, 2024, 4:27pm UTC](https://discourse.slicer.org/t/i-want-to-set-the-ijk-to-ras-direction-matrix-for-all-my-scans-i-upload/34696/1 "2024-03-04T16:27:07Z")

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I want to set the IJK to RAS direction matrix for all my scans I upload. The current matrix gives me a mirrored volume after segmentation. I believe the “IJK to RAS direction matrix” should be (1 0 0, 0 1 0, 0 0 1). How do I configure this matrix in my settings?

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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:** [March 4, 2024, 8:27pm UTC](https://discourse.slicer.org/t/i-want-to-set-the-ijk-to-ras-direction-matrix-for-all-my-scans-i-upload/34696/2 "2024-03-04T20:27:14Z")

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If you look through the [script repository](https://slicer.readthedocs.io/en/latest/developer_guide/script_repository.html) you can find examples of setting the IJKToRAS matrix. Also you’ll find examples of setting your slicerrc.py file to do things automatically when nodes are added to the scene.