get_roi() method for surface atlases (class surfatlas, e.g.
from get_wang_atlas, glasser_surf, or
schaefer_surf). It returns one ROISurface per
matched region, carrying the mesh vertices of that area on the appropriate
hemisphere.
Because a surface atlas stores each hemisphere on its own mesh, a
label
present in both hemispheres yields one ROI per hemisphere, named
"<label>_left" / "<label>_right"; pass hemi to restrict.
When selecting by id, results are named by id (ids are unique across
hemispheres: 1..K left, K+1..2K right).
Usage
# S3 method for class 'surfatlas'
get_roi(x, label = NULL, id = NULL, hemi = NULL)Value
A named list of ROISurface objects.
Examples
if (FALSE) { # \dontrun{
atlas <- get_schaefer_surfatlas(100)
roi <- get_roi(atlas, id = atlas$ids[1])
} # }