There color wheel only works for complex, and there's currently no way to pass an arbitrary color map. We realize how annoying this is, though, and a future version of our surface viewer won't have this limitation.
On Fri, 2007-03-23 at 16:38 -0500, Greg Appelbaum wrote: > Thanks for the info Kevin. The angle function is quite revealing. As it > happens I am looking at EEG data, which likely wasn't in mind in the > functional development of FreeSurfer. > > Might I also ask if you (the general FreeSurfer 'you') know if it's possible > to pass a 'wheel' scale bar to non-complex data? Or generally how to pass > in an arbitrary color map? > > Thanks again > > Greg > > > On 3/22/07 4:27 PM, "Kevin Teich" <[EMAIL PROTECTED]> wrote: > > > > >> I am trying to display phase information on the cortical surface using > >> tksurfer, > >> but am running into problems with the scale bar. Specifically when > >> plotting > >> scalar values using a complex color scale (e.g. RYGB Wheel), I am getting > >> nice > >> looking (continulus) cortical maps, with the correct scale values, but the > >> color bar is showing up inconsistent (two colors). Is there any way to > >> correct > >> this problem, or access the actual color values being projected to the > >> cortical > >> mesh? > > > > Unfortunately, the scale bar isn't really meant to be used with the > > complex color wheel. There is no way to get a nice legend for the color > > wheel. However, if you select View->Information->Angle, you can see the > > actual value that is being passed into the color function, so you can > > mouseover a color on the surface and see what value is mapped to it. I > > know it's not great, but maybe it will help a bit. > > > > > -- Kevin Teich _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
