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
December 08, 2017 03:54PM
The afni GUI only shows the cardinal representations of the data, not at an oblique angle. When you apply the 3dresample command, it resamples the cardinal representation and removes the oblique angle information from the header. The original and resampled datasets will overlay each other inside the afni GUI, but not in GUIs that "turn" the data to show the data obliquely. You can see more information about how AFNI deals with obliquity here:

https://sscc.nimh.nih.gov/sscc/dglen/Obliquity

To make all packages, deal with the data in the same way, you could potentially remove the obliquity information to make it appear cardinal to all software with 3drefit. Best to do that on a copy rather than the original data.
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Subject Author Posted

3dresample orientation effects Attachments

florisvanvugt December 08, 2017 10:30AM

Re: 3dresample orientation effects

Daniel Glen December 08, 2017 03:54PM

Re: 3dresample orientation effects

florisvanvugt December 09, 2017 03:39PM

Re: 3dresample orientation effects

rick reynolds December 11, 2017 08:48AM