Initial Commit

Charts/Filters/IPointsFilter.cs

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+using System.Collections.Generic;
+using System.Windows;
+using System;
+
+namespace Microsoft.Research.DynamicDataDisplay.Filters
+{
+    /// <summary>Provides algorithm for filtering point lists in screen coordinates</summary>
+    public interface IPointsFilter
+    {
+
+        /// <summary>Performs filtering</summary>
+        /// <param name="points">List of source points</param>
+        /// <returns>List of filtered points</returns>
+        List<Point> Filter(List<Point> points);
+
+        /// <summary>Sets visible rectangle in screen coordinates</summary>
+        /// <param name="rect">Screen rectangle</param>
+        /// <remarks>Should be invoked before first call to <see cref="Filter"/></remarks>
+        void SetScreenRect(Rect screenRect);
+
+		event EventHandler Changed;
+    }
+}