Playing a simulation

When you have opened a file for simulation and selected your display preferences, you are ready to play the simulation. Use the following controls to play a simulation More complex functions of the Timeline are covered in Timeline . Some controls are only available if playback is paused or stopped.

Icon	Name	Use
	Play	Start the simulation at processing speed (fastest possible)
	Pause	Pause the simulation (click again to resume)
	Stop	Stop the simulation
	Record	Begin recording files (‘res’ and/or ‘avi’ files)
	Step Forward	Advance one time-step per click
	Step Back	Go back one time-step per click
	Accelerate	Speed up the simulation
	Decelerate	Slow down the simulation (click this before starting the playback if you want to begin at slower than processing speed)
	Restart	Return to the start of the simulations (you can only do so after you have stopped the playback)