Quick Q for RemoveObserver

Support
1

Hi all,
quick question about “RemoveObserver”==>
After I did the following to add one observer
“”"
crosshairNode=slicer.util.getNode(“Crosshair”)
crosshairNode.AddObserver(slicer.vtkMRMLCrosshairNode.CursorPositionModifiedEvent, self.onMouseMoved)
“”"
I did try
crosshairNode.RemoveObserver(slicer.vtkMRMLCrosshairNode.CursorPositionModifiedEvent)
but no effect from this line.

how to remove the observer?

2

You can remove an observer using the tag generated when the observer was added. See the this example in the script repository.

1 Like
3

Thanks a lot for the solution.
It worked after taking all parameters to the root “self”.