principal.curvatures {fsbrain}

Computes principal curvatures according to 2 definitions from raw k1 and k2 values.

Description

Computes principal curvatures according to 2 definitions from raw k1 and k2 values.

Usage

principal.curvatures(k1_raw, k2_raw)

Arguments

k1_raw

numerical vector, one of the two principal curvatures, one value per vertex

k2_raw

numerical vector, the other one of the two principal curvatures, one value per vertex

Value

a named 'principal_curvatures' list, with entries 'principal_curvature_k1': larger value of k1_raw, k2_raw. 'principal_curvature_k2': smaller value of k1_raw, k2_raw. 'principal_curvature_k_major': larger value of abs(k1_raw), abs(k2_raw). 'principal_curvature_k_minor': smaller value of abs(k1_raw), abs(k2_raw).

Note

To obtain k1_raw and k2_raw, use surface.curvatures to compute it from a mesh, or load the FreeSurfer files 'surf/?h.white.max' and 'surf/?h.white.min'.