I am trying to figure out event to assign callback for BoxSelectTool. I want to press the tool, then after selection is done, the callback is executed. I do not want to assign callback to source, as I have a tap tool which will be affected. In other words:
box_selection_tool = p1.select(dict(type=BoxSelectTool))
The help is quite confusing:
The end of the drag event indicates the selection region is ready.