[caret-users] Node to Voxel Mapping

[John Harwell]

Traci,

There is not a way to control the assignment of paint identifiers when  
creating the paint volumes.

However, if you combine all of the individual paint volumes into a  
"multi-volume" file, the paint indices will be synchronized.  You will  
need to use "caret_command", the command line tool included with the  
Caret distribution.  Specifically, you will need to run the command  
"caret_command -volume-file-combine".  Be sure to use the "-paint"  
option at the end of your command so that the paint names get  
synchronized.  If you still need each volume separately, you will need  
to load the multi-volume file into Caret and then save each of the  
volumes contained in the multi-volume file.


caret_command -volume-file-combine
    VOLUME FILE COMBINE
       caret_command -volume-file-combine
          <output-volume-file-name>
          <input-volume-file-1-name>
          [additional-input-volume-files]
          [-paint]
          Combine the volumes into a single, multi-volume file.

          If the volumes are paint or probabilistic atlas volume
          files, the "-paint" option must be specified so that
          paint name indices are synchronized throughout all of
          the volumes.


Good luck.

-----------------------------------
John Harwell
john at brainvis.wustl.edu

Department of Anatomy and Neurobiology
Washington University School of Medicine
660 S. Euclid Ave   Box 8108
Saint Louis, MO 63110




On Dec 8, 2008, at 1:10 PM, Sandoval, Traci I wrote:

> Hello All,
>
> We’ve been trying to create volume ROIs from our surfaces.  We use  
> “copy surface paint column to paint volume” to create “node to voxel  
> mapping.”   The problem is that across hemispheres and subjects  
> different numbers get assigned to the paint ROIs in the volume  
> file.  Is there a way to control the numbers assigned?
>
> - Traci
>
> __________________
> Traci Sandoval
> Research Assistant
> School of Behavioral and Brain Sciences - University of Texas at  
> Dallas
> Center for BrainHealth - University of Texas at Dallas
> Department of Psychiatry - University of Texas Southwestern Medical  
> Center
>
>
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