Dear all experters,

        First I am appreciated for the help of Bruce.
 I tried to following his instruction, but I still have some problem and  I
can't show any result on the flated surface. I don't know whether my method
to calculate the volume is wrong or I display it wrongly. Expecting someone
gives me a struction again!
        My method is: using *read_curv* function to read*
lh.thickness* and*lh.area
*. Then the matrix of thickness product the matrix of area getting a new
matrix. Then using *write_curv* function to write this new matrix into a
*.volume. I think this volume file should be the grey volume image. (I am
not sure about this process)
       And now I want to show this volume on a flated lh hemispere (using
tksurfer), But when I overlay this volume onto inflated surface, there is
not anything overlay on this surface? (this matrix is not all with 0. )

       Anywhere am I wrong?

      Any instruction will be appriciated!

       Joe





2010/2/1, keepmoon <keepmoon1...@googlemail.com>:
>
> Dear developer,
>
>      I want to compare the grey matter volume by VBM to cortical thickness
> by freesurfer. But in this process, I meet a problem: how to change the
> points number of grey matter into the same with the vertex of thickness by
> freesurfer?
>
>       Any help will be appreciated!
>
>       Best regards
>
> Joe
>
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