/// <summary>
/// StartRestoreViewTo is a helper method that is called by ZoomExtentsWithGesture to
/// return the viewport back to it's "home" view.
/// </summary>
private void StartRestoreViewTo(Rhino.DocObjects.ViewportInfo targetPosition)
{
if (Camera == null)
{
return;
}
IsInAnimatedRestoreView = true;
View.UserInteractionEnabled = false;
RestoreViewStartTime = DateTime.Now;
RestoreViewTotalTime = new TimeSpan(0, 0, 0, 0, 500);
RestoreViewStartViewport = new ViewportInfo(Camera); // start from current position
RestoreViewFinishViewport = new ViewportInfo(targetPosition); // end on the target position
// fix frustum aspect to match current screen aspect
RestoreViewFinishViewport.FrustumAspect = Camera.FrustumAspect;
AnimationTimer = NSTimer.CreateScheduledTimer(0.0, this, new Selector("AnimateRestoreView"), null, true);
AnimationTimer.Fire();
}