Normal vector to a tissue surface
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wrote on 15 Jan 2025, 10:15 last edited by
Hello! I'm interested in the normal component of the Electric field to the grey matter surface. How can I extract the inner normal vector to the cortical surface?
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to extract the inner normal vector to the cortical surface
- mask the field (set NaN outside GM) using the Mask Filter available under "Field Data Tools" in the top ribbion.
- add the Grey Matter Surface in the post-pro
- interpolate the (masked) field to the grey matter surface using the "Interpolator" which is active when the masked field and surface is selected.
- get the normal component via the NormalFieldEvaluator under the "Field Data Tools"