init

Backup/PointMarkers/DelegatePointMarker.cs

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+using System;
+using System.Windows;
+using System.Windows.Media;
+
+namespace Microsoft.Research.DynamicDataDisplay.PointMarkers
+{
+    /// <summary>Invokes specified delegate for rendering custon marker
+    /// at every point of graph</summary>
+	public sealed class DelegatePointMarker : PointMarker {
+		public MarkerRenderHandler RenderCallback { get; set; }
+
+		public DelegatePointMarker() { }
+		public DelegatePointMarker(MarkerRenderHandler renderCallback) {
+			if (renderCallback == null)
+				throw new ArgumentNullException("renderCallback");
+	
+			RenderCallback = renderCallback;
+		}
+
+		public override void Render(DrawingContext dc, Point screenPoint) {
+			RenderCallback(dc, screenPoint);
+		}
+	}
+}