Update python/kiss_icp/tools/visualizer.py

Co-authored-by: Benedikt Mersch <mersch@igg.uni-bonn.de>

Author: l00p3

python/kiss_icp/tools/visualizer.py

@@ -268,14 +268,10 @@ def _quit_callback(self):
 
     def _trajectory_pick_callback(self):
         if self._gui.GetIO().MouseClicked[0]:
-            name = ""
-            idx = 0
             pick_selection = self._ps.get_selection()
-            if pick_selection.is_hit:
-                name = pick_selection.structure_name
-                idx = pick_selection.structure_data["index"]
+            name = pick_selection.structure_name
             if name == "trajectory" and self._ps.has_point_cloud(name):
-                pose = self._trajectory[idx]
+                pose = self._trajectory[pick_selection.structure_data["index"]]
                 self._selected_pose = f"x: {pose[0]:7.3f}, y: {pose[1]:7.3f}, z: {pose[2]:7.3f}>"
             else:
                 self._selected_pose = ""