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
July 29, 2014 12:48PM
You probably saw the binary trick for ROIs in 3dcalc's help. For the selective display, you can use the Instacalc function in the Overlay panel to restrict datasets to a particular value. The method would be basically the same as the 3dcalc command but without any permanent file on the disk. A similar function is available by right clicking over the Overlay colorbar and using the Overlay Tran 0D with the Expr 0D. Alternatively, you can use one of the paned color scales in the Overlay instead of the continuous color scale that is shown by default. Each pane can be selected to show a specified color or no color at all. Finally, setting the AFNI environment variable, AFNI_PBAR_THREE, to YES gives an overlay color bar that has upper and lower limits in addition to the threshold slider functions.

http://afni.nimh.nih.gov/afni/community/board/read.php?1,83335,83337#msg-83337
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Subject Author Posted

Interactive viewing of voxels with a specific value?

shanusmagnus July 29, 2014 12:31PM

Re: Interactive viewing of voxels with a specific value?

Daniel Glen July 29, 2014 12:48PM

Re: Interactive viewing of voxels with a specific value?

shanusmagnus July 29, 2014 02:29PM