Re: [Freesurfer] surface co-ordinates

On Wed, 20 Feb 2008, Mishkin Derakhshan wrote:

Hi,

1. When using mris_convert lh.white lh.white.ascii, what co-oridnate

system are the xyz co-ordinates reported in? ie. is it the RAS co-ordinates of the T1.mgz volume?

These are "surface RAS" or "tkregister RAS". There is a power point presentation on coord systems on the wiki.

2. I am making the assumption that the lh.white and the lh.pial will

always have the same number of indices and polygons. Can I also make the assumption that the order in which they are printed using mris_convert will be the same. ie. Will the vertex on line 54 of lh.white.ascii correspond to the same vertex on line 54 of lh.pial.ascii?

Yes.

doug

thanks, mishkin _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer