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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ziad
January 06, 2014 12:22PM
I am a little confused about the usefulness of the 6 parameters you mention.

3dcalc can be used to create a cubical ROI by making special use of the x, y, z variables or (i,j,k if you want to use voxel indices).

Here is how to create a box of dimensions: 100, 80, 60 mm and centered at (10, -3, -10)mm RAI . For a template grid, I used the TT_N27+tlrc volume in AFNI's bin directory:

3dcalc -a ~/abin/TT_N27+tlrc -expr 'within(x, -50+10, 50+10)*within(y,-40-3, 40-3)*within(z,-30-10,30-10)' -prefix box

cheers,
Ziad
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Subject Author Posted

Cube ROI drawing

hemasam January 02, 2014 12:16PM

Re: Cube ROI drawing

ziad January 06, 2014 12:22PM

Re: Cube ROI drawing

Daniel Glen January 06, 2014 03:45PM