Geometry: Update RK refactoring and fix modified flag.

src/View/Geometry/UndoCommand.py

@@ -247,14 +247,13 @@ class UpdateRKCommand(QUndoCommand):
         self._new_end_rk = None
 
     def undo(self):
-        for rk, profile in zip(self._rks, self._reach.profiles):
-            profile.rk = rk
+
+        self._reach.update_rks(self._rks)
 
         for begin_rk, end_rk, friction in zip(self._begin_rk,
                                               self._end_rk,
                                               self._frictions):
-            friction.begin_rk = begin_rk
-            friction.end_rk = end_rk
+            friction.update_rks(begin_rk, end_rk)
 
     def redo(self):
         if self._new_rks is None:
@@ -264,13 +263,12 @@ class UpdateRKCommand(QUndoCommand):
                     **self._data
                 )
 
-        for rk, profile in zip(self._new_rks, self._reach.profiles):
-            profile.rk = rk
+        self._reach.update_rks(self._new_rks)
+
         for begin_rk, end_rk, friction in zip(self._new_begin_rk,
                                               self._new_end_rk,
                                               self._frictions):
-            friction.begin_rk = begin_rk
-            friction.end_rk = end_rk
+            friction.update_rks(begin_rk, end_rk)
 
 
 class MeshingCommand(QUndoCommand):