My guess is that the surface file is not formatted properly and/or does not have the proper geometry in it. Can you successfully run mris_info on it and load it into freeview (freeview -f surface)? When you convert to freesurfer format, try specifying the mgz file as the argument to the --geom flag to pass the geometry into it.
On 6/16/2025 11:44 AM, James Hengenius wrote:
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Hi FS list,
I have some infant native space cortical surfaces generated by another software package. I would like to 'paint' them with some volumetric ROIs also in the native space.
I noticed that mri_vol2surf has the "--vol2surf" option, which does not require typical FS output directory structure.
I first converted the vtk surfaces from the other software to FS format. Here, the left hemi surface is called lh.pial and the corresponding volume is subject-168-T1w-iso.mgz (also used as regheader volume). I'm trying abs distance projection with 5mm distance, no projmap (0 as dummy var), and nearest neighbor interp.
I get the errors below. My first guess is that using the native volume as the 'reg' argument is the issue, but any feedback is welcome!
Searched a bit, but the "could not allocate xforms" error only comes up in one other thread on the listserv, and it's about mri_convert, not mri_vol2surf.
Thanks, Jim H.
mri_vol2surf --vol2surf \ /mnt/f/iBEAT_longitudinal_format/1433/1433_V2/subject-168-T1w-iso.mgz \ /mnt/f/iBEAT_longitudinal_format/1433/1433_V2/surf/lh.pial \ 0 \ 5 \ 0 \ /mnt/f/iBEAT_longitudinal_format/1433/1433_V2/subject-168-T1w-iso.mgz \ novsm \ 0 \ /mnt/f/iBEAT_longitudinal_format/1433/1433_V2/surf/lh.surf_ROIs
error: Cannot allocate memory error: LTAalloc(1085915240): could not allocate xforms
-- Jim Hengenius Research Associate Paus Research Group CHU Sainte-Justine Research Centre My Google Calendar http://secure-web.cisco.com/1fTLLOHBUxeHr_93Qy3ygesltkiuCLo-hiJm1MHYChZYxiujW7jC7dSbyppZUA8TD1amrbBBoAQ94IGFiELJHYJwCQgKT26mPOEV5MnZCH_C7I2Kl1QyYUWPF_3ID6sWeQVIX6tlV3lcmEItCxtiSMUO2-CXN3krd0J1yvXH4Gga1ljAjU71eif3so2Wd0VxHMjurSKqNHE8CHj-P4cphT4P204F64moZSZplHSBbanKd9mSVgTPmrItidsCVg82fjQAlCvTla7ffJBuILq2hMpn1g_br2ns_ZqVLwj2M9_3r57yRpRhM9oXgaPme9Zjs/http%3A%2F%2Fwww.google.com%2Fcalendar%2Fembed%3Fsrc%3Djames.hengenius%40gmail.com
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