in utils.py [0:0]
def adj_init(verts, faces, args):
# get generic adjacency matrix for vision charts
adj = calc_adj(faces)
adj_info = {}
if args.use_touch:
# this combines the adjacency information of touch and vision charts
# the output adj matrix has the first k rows corresponding to vision charts, and the last |V| - k
# corresponding to touch charts. Similarly the first l faces are correspond to vision charts, and the
# remaining correspond to touch charts
adj, faces = adj_fuse_touch(verts, faces, adj, args)
adj = normalize_adj(adj)
adj_info['adj'] = adj
adj_info['faces'] = faces
return adj_info