You create it with bbregister. See the multimodal integration tutorial

https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/MultiModal_freeview

I am sorry but that is what I am unsure about it. I don't know how to obtain a registration matrix or which registration matrix to use for this.

Best,

Srishti

Social/Clinical Research Specialist

Child Imaging Research and Life Experiences Lab

University of North Carolina at Chapel Hill

email (W): srishtig@email.unc.edu

skype: srishti.goel12

On Mon, Mar 5, 2018 at 3:24 PM, Douglas N Greve <greve@nmr.mgh.harvard.edu> wrote:

Why did you remove the registration file? --srcreg below


On 02/28/2018 04:13 PM, srishti goel wrote:
> Hello,
>
> Thank you so much! I used the following command as you said and got an
> error : must specify a source registration file or --regheader
>
> mri_vol2surf --src negative_allsocial_avgnull.nii --src_type analyze
> --trgsubject fsaverage --hemi lh --o ./neg_allsocial.nii --projfrac 0.5
>
>
> Best,
> Srishti
> Social/Clinical Research Specialist
> Child Imaging Research and Life Experiences Lab
> University of North Carolina at Chapel Hill
> email (W): srishtig@email.unc.edu <mailto:srishtig@email.unc.edu>
> skype: srishti.goel12
>
>
> On Wed, Feb 28, 2018 at 10:13 AM, Douglas Greve
> <greve@nmr.mgh.harvard.edu <mailto:greve@nmr.mgh.harvard.edu>> wrote:
>
>     you need to add --trgsubject fsaverage to your mri_vol2surf
>     command line
>
>
>     On 2/27/18 12:23 PM, srishti goel wrote:
>>     Hello,
>>
>>     We are trying to project a volume map onto a surface. Our network
>>     based volume map is a .vmp file and our surface is a nifti file.
>>     We were able to convert the volume maps from .vmp to nifti.
>>     Our volume map is: negative_allsocial_proportion.nii
>>     Our surface is: SN_like_cortical_lh.nii
>>     The output file is named: neg_allsocial.nii
>>
>>     We are trying to use the following command to now project the
>>     volume map on surface and the issues we are facing are:
>>     1) We are unsure of what the purpose of the registration file is
>>     and where in the mir_vol2surf command should we specify the surface
>>     2) If it is a matrix for something related to the surface on
>>     which we want to project our volume then how should we go about
>>     obtaining the registration file appropriate for our comparison.
>>
>>     _Command:_
>>     mri_vol2surf --src negative_allsocial_proportion.nii --src_type
>>     analyze --srcreg [REGISTRATION MATRIX] --hemi lh --o
>>     ./neg_allsocial.nii --projfrac 0.5
>>
>>     _Then to project it:_
>>     tksurfer fsaverage lh inflated -ov neg_allsocail.nii
>>
>>
>>
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MGH-NMR Center
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