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 <keepmoon1224@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