visualToolChanged = function (
   event
Object that contains information about event. Object has the following properties:
 
 
target (object): An object that raised the event.
 
type (string): Event name.
 
data (object): An object that contains data, which were specified when subscribing to the event.
 
originalEvent (object): Original event if event was received from DOM-element.
 
 : object
   eventsArgs
Object that contains event arguments. Object has the following properties:
 
 
visualTool (object): Current WebVisualToolJS of the viewer.
 
previousVisualTool (object): Previous WebVisualToolJS of the viewer.
 
 : object
) { };