Code for animating a MapPoint to a new location

PointAnimator.cs

using ESRI.ArcGIS.Runtime;
using System;
using Windows.UI.Xaml.Media;

namespace GeometryUtils
{
  public class PointAnimator
	{
		public PointAnimator(MapPoint point, MapPoint to, TimeSpan duration)
		{
			EventHandler<object> handler = null;
			TimeSpan? start = null;
			double startX = point.X;
			double startY = point.Y;
			var easing = new Windows.UI.Xaml.Media.Animation.CubicEase();
			handler = (s, e) =>
			{
				var args = (RenderingEventArgs)e;
				if (!start.HasValue)
				{
					start = args.RenderingTime;
				}
				else
				{
					TimeSpan timeElapsed = args.RenderingTime - start.Value;
					if (timeElapsed < duration)
					{
						var frac = easing.Ease(timeElapsed.TotalMilliseconds / duration.TotalMilliseconds);
						double x = (to.X - startX) * frac + startX;
						double y = (to.Y - startY) * frac + startY;
						point.SetXY(x, y);
					}
					else //reached end
					{
						point.SetXY(to.X, to.Y);
						CompositionTarget.Rendering -= handler;
					}
				}
			};

			CompositionTarget.Rendering += handler;
		}
	}
}