Shows or hides the grid world view V = ROBOTSGW_DISPLAY(GW[, VISIBLE]) Shows or hides the grid word view. If the UPDATE argument is present, the view is updated to be consistent with the world state. If on the other hand the argument is not present, but the view needs to be shown and knows it is tainted (not consistent with the state of the world) an automatic complete update will be performed. Parameters: GW - the grid world VISIBLE - (optional) whether the view should be shown (1) or hidden (0). By default, the view remain as it were. Returns: GW - the updated gridworld See also robotsgwview, robotsgw_advance