Inês,
Alternatively, the usage of mris_convert that you want is:
mris_convert -c lh.thickness lh.white lh.thickness.asc
then, after altering the .asc file, to convert back:
mris_convert -c lh.thickness.asc lh.white lh.thickness
See mris_convert --help. The surface file is needed so as it has something to load into (you can use lh.inflated, or lh.pial, it doesnt matter).
Nick
On Tue, 2007-07-31 at 12:18 +0100, Inês Souta wrote:
Hello,
I was trying to create a cortical thickness map with constant values in order to perform some tests. At first I tried using mris_convert. I converted my thickness file into ascii:
mris_convert lh.thickness lh.thickess.asc
then I used matlab to change all the values in the last column to 2,0. I tried to convert the ascii file back to surface file by doing
mris_convert lh.thicness.asc lh.thickness
but I got "Segmentation fault". How can I convert may ascii file into a surface one?
After failling to acomplish this, I tried using the save_mgh and load_mgh file, nevertheless I'm not quite sure which input values are needed. Where can I put my fake values in the save_mgh file? And what is "vol"?
Thanks,
Ines _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer