Hi Bruce & Surfers, OK, we created a .w file and it looks at is should so part (a) below is solved. However we cannot seem to extract a list of functional overlay values of vertex points included in a label, which was why we needed to do this in the first place.
Our goal is to get rid of some bad vertex points points in our functional overlay by creating a mask that excluded them, then load a label, and use labl_save to create a list of overlay values contained within the label (that does not include the vertex points that were masked away). Bruce, Kevin, Doug, any suggestions? Bests, Tommi > Hi Tommi, > > the w-file format is sparse and doesn't have to cover the surface, but > the .mgz does. > > Bruce > > On Tue, 19 Jun 2007 [EMAIL PROTECTED] wrote: > >> Dear Fellow Surfers, >> >> Is there a FreeSurfer way to mask a stat map overlay, on the inflated >> cortical surface, in a way that the masked vertex points >> >> (a) are transparent in the overlay display (just the underlying dark >> gray/light gray curvature is showing)? >> >> (b) do not effect label-specific HDR time courses (i.e., only unmasked >> vertex points are taken into account when calculating the HDR curve)? >> >> We can edit the stats map with our custom script to generate the mask >> (e.g., mark all masked vertex points as 0 in the overlay), but it seems >> that in a stats map every vertex point needs to have an overlay value >> (i.e., we cannot just skip the vertex points we want to omit - right?). >> >> Thanks! >> >> -Tommi >> >> --- >> Tommi Raij, M.D., Ph.D. >> MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging >> Bldg 149, 13th St >> Charlestown, MA 02129 >> U.S.A. >> >> >> _______________________________________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> >> > > > _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer