[Eeglablist] headplot interpolation

[Arnaud Delorme]

Dear Jim,

doing what you are asking for is not hard and it is actually already built in. Simply add a mesh for the face under the variable name TRI2 in your mesh data file as detailed in the headplot help message. This is the mesh for the face. Note that the mesh for the scalp and the mesh for the face should not be overlapping. Also the main problem you will encounter is to get a smooth separation line between the mesh for the scalp and the mesh for the face (if you simply select vertices on the face for face mesh, you will end up with a jagged line where the face mesh ends and the interpolation starts). Send us your file once you are done.

Best,

Arno

On Sep 9, 2011, at 7:25 PM, Scott Makeig wrote:

> Jim -  That would be a good programming project for someone - easiest, likely, would be to repaint the face voxels a color of your choosing after headplot) renders the image (invoked by a new 'noface' option, perhaps?) ...
> 
> Scott Makeig
> 
> On Thu, Sep 8, 2011 at 12:57 PM, Jim Cavanagh <jim.f.cav at gmail.com> wrote:
> Does anyone know if there is a way to limit the interpolation on the 3D headplots so that the face isn't included?  For example, stopping the interpolation around the 'brim of the cap'?  While I find it attractive, some colleagues, audience members and reviewers find it confusing.
> 
> -- 
> Jim Cavanagh
> Post Doc
> Laboratory for Neural Computation & Cognition
> Brown University
> http://tinyurl.com/jimcavanagh
> 
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> -- 
> Scott Makeig, Research Scientist and Director, Swartz Center for Computational Neuroscience, Institute for Neural Computation & Adj. Prof. of Neurosciences, University of California San Diego, La Jolla CA 92093-0559, http://sccn.ucsd.edu/~scott
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