Is there any practical relevance/concern to deleting DIAGONAL_FILL
values (or any of the other classes) if needed to open up a path to an
area of gray matter that was otherwise closed off?

thanks,
-MH 

On Tue, 2012-03-13 at 13:56 -0400, Bruce Fischl wrote:
> Hi Mike
> 
> they are in mri.h if you have a source distribution:
> 
> #define THICKEN_FILL         200
> #define NBHD_FILL            210
> #define VENTRICLE_FILL       220
> #define DIAGONAL_FILL        230
> #define DEGENERATE_FILL      240
> #define OFFSET_FILTER_FILL   245
> #define AUTO_FILL            250
> #define PRETESS_FILL         215
> #define WM_EDITED_ON_VAL     255
> #define WM_EDITED_OFF_VAL      1
> 
> On Tue, 13 Mar 2012, 
> Michael Harms wrote:
> 
> >
> > Hello,
> > Is there a "key" for what all the various altered voxel values in wm.mgz
> > represent?  For example, I know that if you manually add a voxel, it
> > gets set to 255, and if you delete a voxel it gets set to 1.
> >
> > What is the analogous "key" for values of 200, 215, 230, and 250?
> >
> > thanks,
> > -MH
> >
> >
> >
> 
> 
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