1)Main GUI: SubjectTools ˆ Make Occip Surface Cuts.
2)Select points across calcarine fissure and press CUT LINE.
3)Select 3 points to define the cutting plane: 2 on medial side and 1 on lateral side.
4)Choose a fourth point to specify which portion of surface to keep. 
Volume
preprocessing
Segmentation
Inflation
Manual Editing
Re-inflation
Fix topology
Final Surface
Volume/Surface
postprocessing
Cutting &
Flattening
* For an Occipital Patch: