External Email - Use Caution > There is no linear transformation between the two. Vertex coordinate is > equal to surfaceRAS when the point that you have selected is actually one > of the vertices on the chosen surface. However, if the point is not on the > surface, it finds the nearest vertex. So, you can read your surface ( in > matlab : [vertices, faces] = read_surf('lh.pial') ) and then find the > vertex that is closest to your selected point (surfaceRAS). This is the > vertex that you see in the Freeview.
Ehsan.
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