Identifying an Entity (Group) with a Tool (InputPoint or PickHelper)


I am trying to determine the top level group (wall assembly) with my “Add Window” tool as I mouse over it. I know this is probably a very easy piece of code but as I look at the documentation for the InputPoint Class I can’t seem to find the correct method to use to accomplish this. Should I be trying to use the PickHelper Class instead?


This code should point you in the correct direction. Also, onMouseMove might be called many times a second so keep things streamlined.

# save time later by caching the reference to the pick helper for the active_view
# when you create the tool

def activate
  @ph = Sketchup.active_model.active_view.pick_helper

 def onMouseMove(flags, x, y, view)
   @ph.do_pick(x, y)
   my_object = @ph.best_picked
  # handle adding or removing my_object from the selection array



Just a FYI for general readership:


Thank-you, I think I have a better grasp of the PickHelper now, that is the route I will go with.


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