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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bob cox
January 28, 2003 08:52AM
1) You should be able to delete the brain+acpc.BRIK and brain+tlrc.BRIK files and still be able to view them. The 2D images in +acpc and +tlrc coordinates will be "warped-on-demand" from the brain+orig.BRIK file, using the transformation ("warp") stored in the brain+acpc.HEAD and brain+tlrc.HEAD files. However, you won't be able to volume render the brain+tlrc dataset, since that doesn't work with warp-on-demand.

2) You can also save disk space while keeping the .BRIK files by compressing them. A command like
gzip -9v brain+*c.BRIK
will compress the brain+acpc.BRIK and brain+tlrc.BRIK files. AFNI programs will still be able to read them (they will get the ".gz" suffix appended by the gzip program).

My personal preference would be to delete the brain+acpc.BRIK file and to compress the brain+tlrc.BRIK file. But this depends on what you want to do with them. Even if you delete them, you can alway re-create them using adwarp or using the "Write Anat" button (on the "Define Datamode" control panel).

bob cox
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Subject Author Posted

Re-applying acpc & tlrc data .....

Lukas Pezawas January 27, 2003 05:56PM

Re: Re-applying acpc & tlrc data .....

bob cox January 27, 2003 08:01PM

Re: Re-applying acpc & tlrc data .....

Lukas Pezawas January 27, 2003 09:16PM

Re: Re-applying acpc & tlrc data .....

bob cox January 28, 2003 08:52AM

Thanks!

Lukas Pezawas January 28, 2003 10:18AM

Thanks!

Lukas Pezawas January 28, 2003 10:18AM

Re: Re-applying acpc & tlrc data .....

. February 09, 2003 12:07AM