/// <summary>
/// Starts an animation to the given parameters.
/// </summary>
/// <param name="center"></param>
/// <param name="zoomLevel"></param>
/// <param name="mapTilt"></param>
/// <param name="time"></param>
public void Start(GeoCoordinate center, float zoomLevel, Degree mapTilt, TimeSpan time)
{
// stop the previous timer.
if (_timer != null)
{ // timer exists, it might be active disable it immidiately.
// cancel previous status.
_timerStatus.Cancelled = true;
_timer.Change(System.Threading.Timeout.Infinite, System.Threading.Timeout.Infinite);
_timer.Dispose();
}
// Create the animation function.
_animationFunction = CubicBezier.createEase();
// Initialaize the start and end state of the map.
_startState = new MapAnimationState(_mapView.MapZoom, _mapView.MapTilt, _mapView.MapCenter);
_endState = new MapAnimationState(zoomLevel, mapTilt, center);
_currentState = new MapAnimationState(_mapView.MapZoom, _mapView.MapTilt, _mapView.MapCenter);
OsmSharp.Logging.Log.TraceEvent("MapViewAnimator", OsmSharp.Logging.TraceEventType.Verbose,
string.Format("Started new animation to z:{0} t:{1} c:{2} from z:{3} t:{4} c:{5}.",
_endState.Zoom, _endState.Tilt, _endState.Center.ToString(),
_mapView.MapZoom, _mapView.MapTilt, _mapView.MapCenter.ToString()));
// disable auto invalidate.
_mapView.RegisterAnimator(this);
_startTime = DateTime.Now.Ticks / TimeSpan.TicksPerMillisecond;
_duration = (long)time.TotalMilliseconds;
_endTime = _startTime + _duration;
// start the timer.
// create a new timer.
_timerStatus = new AnimatorStatus();
_timer = new Timer(new TimerCallback(_timer_Elapsed), _timerStatus, 0, (int)_minimumTimeSpan.TotalMilliseconds);
}