set Transition
Set the transition options for style changes.
If not set, any changes take effect without animation, besides symbols, which will fade in/out with a default duration after symbol collision detection.To disable symbols fade in/out animation, pass transition options with enablePlacementTransitions equal to false.
Both duration and delay will also change the behavior of the symbols fade in/out animation if the placement transition is enabled.
Parameters
transition Options
the transition options