CogMap: Fix five undefined names

research/cognitive_mapping_and_planning/src/depth_utils.py

@@ -17,6 +17,7 @@
 """
 import numpy as np
 import src.rotation_utils as ru
+import src.utils as utils
 
 def get_camera_matrix(width, height, fov):
   """Returns a camera matrix from image size and fov."""

research/cognitive_mapping_and_planning/src/file_utils.py

@@ -34,7 +34,7 @@ def write_image(image_path, rgb):
     f.write(img_str)
 
 def read_image(image_path, type='rgb'):
-  with fopen(file_name, 'r') as f:
+  with fopen(image_path, 'r') as f:
     I = PIL.Image.open(f)
     II = np.array(I)
     if type == 'rgb':

research/cognitive_mapping_and_planning/src/graph_utils.py

@@ -20,6 +20,7 @@ import numpy as np
 import networkx as nx
 import itertools
 import logging
+from datasets.nav_env import get_path_ids
 import graph_tool as gt
 import graph_tool.topology
 import graph_tool.generation