2 files changed, 41 insertions, 1 deletions

diff --git a/OpenSim/Framework/RegionInfo.cs b/OpenSim/Framework/RegionInfo.cs
index afd50a9..cee1d4b 100644
--- a/OpenSim/Framework/RegionInfo.cs
+++ b/OpenSim/Framework/RegionInfo.cs
@@ -64,6 +64,13 @@ namespace OpenSim.Framework
         }
         protected string m_serverURI;
 
+        public string RegionName
+        {
+            get { return m_regionName; }
+            set { m_regionName = value; }
+        }
+        protected string m_regionName = String.Empty;
+
         protected bool Allow_Alternate_Ports;
         public bool m_allow_alternate_ports;
         protected string m_externalHostName;
@@ -101,6 +108,7 @@ namespace OpenSim.Framework
 
         public SimpleRegionInfo(RegionInfo ConvertFrom)
         {
+            m_regionName = ConvertFrom.RegionName;
             m_regionLocX = ConvertFrom.RegionLocX;
             m_regionLocY = ConvertFrom.RegionLocY;
             m_internalEndPoint = ConvertFrom.InternalEndPoint;
@@ -284,7 +292,6 @@ namespace OpenSim.Framework
         public UUID originRegionID = UUID.Zero;
         public string proxyUrl = "";
         public int ProxyOffset = 0;
-        public string RegionName = String.Empty;
         public string regionSecret = UUID.Random().ToString();
         
         public string osSecret;
diff --git a/OpenSim/Framework/Util.cs b/OpenSim/Framework/Util.cs
index 58344f3..45b5a10 100644
--- a/OpenSim/Framework/Util.cs
+++ b/OpenSim/Framework/Util.cs
@@ -70,6 +70,39 @@ namespace OpenSim.Framework
         public static readonly Regex UUIDPattern 
             = new Regex("^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$");
         
+        /// <summary>
+        /// Linear interpolates B<->C using percent A
+        /// </summary>
+        /// <param name="a"></param>
+        /// <param name="b"></param>
+        /// <param name="c"></param>
+        /// <returns></returns>
+        public static double lerp(double a, double b, double c)
+        {
+            return (b*a) + (c*(1 - a));
+        }
+
+        /// <summary>
+        /// Bilinear Interpolate, see Lerp but for 2D using 'percents' X & Y.
+        /// Layout:
+        ///     A B
+        ///     C D
+        /// A<->C = Y
+        /// C<->D = X
+        /// </summary>
+        /// <param name="x"></param>
+        /// <param name="y"></param>
+        /// <param name="a"></param>
+        /// <param name="b"></param>
+        /// <param name="c"></param>
+        /// <param name="d"></param>
+        /// <returns></returns>
+        public static double lerp2D(double x, double y, double a, double b, double c, double d)
+        {
+            return lerp(y, lerp(x, a, b), lerp(x, c, d));
+        }
+
+
         /// <value>
         /// Well known UUID for the blank texture used in the Linden SL viewer version 1.20 (and hopefully onwards) 
         /// </value>