you need to tell it what format to write the output in. Try using -
--tfmt curv

I would have thought you needed --sfmt curv also. I'm just guessing though. Doug is the expert on this.

cheers,
Bruce

On Tue, 4 Aug 2009, Feng-Xian Yan wrote:

Hi,

 I had asked two problems before; one is what is coordinates when I
type mris_convert
-c lh.thickness lh.white lh.thickness.asc, and another is if the asc file
doesn't use Tal coordinate, what commands do I type to obtain the thickness
asc with Tal coordinate?, and then you responded me with ?the coordinates
are native RAS. You can use mri_surf2surf to convert the surface to tal
coords with the talairach.xfm.?



So, first, I change the native RAS cooridinate to Tal coordinate with
?mri_surf2surf --srcsubject noise0.5_0 --srcsurfval thickness --trgsubject
noise0.5_0 --trgsurfval noise0.5_0_tal.xfm --hemi lh --sval-tal-xyz orig
--tval-xyz?

srcsubject = noise0.5_0
srcval     = thickness
srctype    =
trgsubject = noise0.5_0
trgval     = noise0.5_0_tal.xfm
trgtype    =
surfreg    = sphere.reg
srchemi    = lh
trghemi    = lh
frame      = 0
fwhm-in    = 0
fwhm-out   = 0
Reading source surface reg
/usr/local/freesurfer/subjects/analysis/noise_analysis//noise_0.5_1_5//noise0.5_0/surf/lh.sphere.reg
Loading source data
Reading surface file
/usr/local/freesurfer/subjects/analysis/noise_analysis//noise_0.5_1_5//noise0.5_0/surf/lh.orig
Applying MNI305 talairach transform
0.966   0.002  -0.004   0.426;
0.018   0.989   0.041  -19.382;
-0.006   0.032   0.962   17.438;
0.000   0.000   0.000   1.000;
INFO: surfcluster: NOT fixing group surface area
INFO: trgsubject = srcsubject
Saving target data



Then, I obtain the thickness asc file with Tal coordinate using this command
?mris_convert -c lh.noise0.5_0_tal.xfm lh.white lh.thickness.asc?



But, this has an error:

MRISreadBinaryCurvature: incompatible vertex number in file
./lh.noise0.5_0_tal.xfm


What?s wrong? Would you tell me how to resolve?



Thank you in advance!



Feng-Xian