Re: [Freesurfer] decimate overlay

2017-05-16 Thread Dorothy Sincasto
Hi Douglas, Thanks, that worked. However, for future reference, if it's necessary to keep the original values then put --no-rev Thanks Dorothy On Tue, May 16, 2017 at 10:31 AM, Douglas Greve wrote: > Try something like > > mris_apply_reg --src overlay4k.mgh --trg overlay1k.mgh --streg surf4k

Re: [Freesurfer] decimate overlay

2017-05-16 Thread Douglas Greve
Try something like mris_apply_reg --src overlay4k.mgh --trg overlay1k.mgh --streg surf4k surf1k On 5/16/17 12:41 PM, Dorothy Sincasto wrote: Hi Douglas, I am using the cortical surface for MEG time series reconstruction. I need to know which vertices belong to a specific area, i.e. vertices

Re: [Freesurfer] decimate overlay

2017-05-16 Thread Dorothy Sincasto
Hi Douglas, I am using the cortical surface for MEG time series reconstruction. I need to know which vertices belong to a specific area, i.e. vertices that belong to the PCC, AG... I got the surfaces from the HCP which has 4.002 vertices in each subject, then I decimated with mris_decimate 0.25,

Re: [Freesurfer] decimate overlay

2017-05-15 Thread Douglas Greve
I don't understand what you are trying to do. Can you elaborate? Sending command lines is always helpful On 5/15/17 6:50 PM, Dorothy Sincasto wrote: Hi freesurfers, I have an overlay with 4k vertices and I want to decimate it to 1k. This overlay is actually an atlas with a label value for ea

[Freesurfer] decimate overlay

2017-05-15 Thread Dorothy Sincasto
Hi freesurfers, I have an overlay with 4k vertices and I want to decimate it to 1k. This overlay is actually an atlas with a label value for each vertex. My surfaces will have 1k vertices and I need the overlay to 1k so I know which areas each vertex belong to. I tried to decimate the atlas.mgh b