# Rotation matrix in transforms

**URL:** <https://discourse.slicer.org/t/rotation-matrix-in-transforms/8122>\
**Category:** Support\
**Created:** [August 21, 2019, 2:45pm UTC](https://discourse.slicer.org/t/rotation-matrix-in-transforms/8122 "2019-08-21T14:45:36Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Jainey](https://avatars.discourse-cdn.com/v4/letter/j/a88e57/32.png) [@Jainey](https://discourse.slicer.org/u/Jainey)\
**Post date:** [August 21, 2019, 2:45pm UTC](https://discourse.slicer.org/t/rotation-matrix-in-transforms/8122/1 "2019-08-21T14:45:36Z")

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Hi All

Sorry about all this amateur questions and new post. But could someone explain me how to get the displacement of one segment to another in terms of rotations please. I did segment registration and got a the linear transform, but I don’t know how to calculate Euler s angles of rotation of my segment out of this numbers. Thanks a lot

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [August 21, 2019, 3:30pm UTC](https://discourse.slicer.org/t/rotation-matrix-in-transforms/8122/2 "2019-08-21T15:30:13Z")

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A post was merged into an existing topic: [Calculation of numerical data for transformation](https://discourse.slicer.org/t/calculation-of-numerical-data-for-transformation/8064)

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [August 21, 2019, 3:30pm UTC](https://discourse.slicer.org/t/rotation-matrix-in-transforms/8122/3 "2019-08-21T15:30:15Z")

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