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

History of AFNI updates  

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February 07, 2008 11:08AM
I have a feeling this has been asked countless times before

I have an oblique dataset
my gradient directions are relative to the magnet.

I want to rotate my gradients to be relative to my image.

I have a feeling that it should be just multiplying some rotation matrix by the gradients, but i've tried IJK_DICOM_TO_REAL and the resultant directoins are no longer normalized. Plus, i'm uncertain that the rotation in this matrix is about the origin.

Thoughts?

Thanks
Drew
Subject Author Posted

obliquity, DTI, directions

Drew February 07, 2008 11:08AM

Re: obliquity, DTI, directions

Drew February 12, 2008 09:42AM