AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

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Daniel Glen
February 17, 2017 11:55AM
I'm not clear as to what you're trying to do. With the tagset plugin, you would set your points in the exact same order for two datasets. Then use 3dTagalign to affinely align one dataset to the other. The affine transformation is computed and stored in the header of the dataset. You could use the Nudge plugin afterwards too. cat_matvec can concatenate the two transformations together. You may then apply the transformation with 3dAllineate or 3drotate. Directions of the transformation matrices are important here, so you have to be consistent, and you may need to take the inverse of each.
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Transformation matrix between anat and ortho files

ohadfel February 14, 2017 07:44AM

Re: Transformation matrix between anat and ortho files

Daniel Glen February 17, 2017 11:55AM