remove dev ordering AnisotropicFrictionPlane

elastica/modules/feature_group.py

@@ -1,7 +1,7 @@
 from typing import Callable
 from elastica.typing import OperatorType
 
-from collection.abc import Iterable
+from collections.abc import Iterable
 
 import itertools
 
@@ -23,5 +23,5 @@ def append_id(self, feature):
         self._operator_collection.append([])
 
     def add_operators(self, feature, operators: list[OperatorType]):
-        idx = self._operator_idx.index(feature)
+        idx = self._operator_ids.index(feature)
         self._operator_collection[idx].extend(operators)

elastica/modules/forcing.py

@@ -6,7 +6,6 @@
 (external point force, muscle torques, etc).
 """
 import functools
-from elastica.interaction import AnisotropicFrictionalPlane
 
 
 class Forcing:
@@ -71,18 +70,6 @@ def _finalize_forcing(self):
                 ext_force_torque, [apply_forces, apply_torques]
             )
 
-        # TODO: remove: we decided to let user to fully decide the order of operations
-        # Find if there are any friction plane forcing, if add them to the end of the list,
-        # since friction planes uses external forces.
-        friction_plane_index = []
-        for idx, ext_force_torque in enumerate(self._ext_forces_torques):
-            if isinstance(ext_force_torque[1], AnisotropicFrictionalPlane):
-                friction_plane_index.append(idx)
-
-        # Move to the friction forces to the end of the external force and torques list.
-        for index in friction_plane_index:
-            self._ext_forces_torques.append(self._ext_forces_torques.pop(index))
-
 
 class _ExtForceTorque:
     """