Raise error in transformation if result is None

Author: ivalaginja

catkit2/base_services/camera.py

@@ -230,6 +230,9 @@ def transform_offset(self, x, y, inverse=False):
         if inverse:
             new_coords = np.linalg.multi_dot([T_back, Y, X, R.T, T_center, coords])
 
+        if new_coords is None:
+            raise ValueError('Transformation resulted in None coordinates. Check camera configuration.')
+
         return new_coords[0], new_coords[1]
 
     def rot_flip_image(self, img):