Added (experimental) terrain elevate command to allow whole terrain to be elevated with positive or negative values

OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs

@@ -477,6 +477,7 @@ namespace OpenSim.Region.Terrain
                         resultText += "terrain erode thermal <talus> <rounds> <carry>\n";
                         resultText += "terrain erode hydraulic <rain> <evaporation> <solubility> <frequency> <rounds>\n";
                         resultText += "terrain multiply <val> - multiplies a terrain by <val>\n";
+                        resultText += "terrain elevate <val> - elevates a terrain by <val>\n";
                         resultText += "terrain revert - reverts the terrain to the stored original\n";
                         resultText += "terrain bake - saves the current terrain into the revert map\n";
                         resultText +=
@@ -524,6 +525,10 @@ namespace OpenSim.Region.Terrain
                         SetRange(Convert.ToSingle(args[1]), Convert.ToSingle(args[2]));
                         break;
 
+                    case "elevate":
+                        Elevate(Convert.ToSingle(args[1]));
+                        break;
+
                     case "fill":
                         heightmap.Fill(Convert.ToDouble(args[1]));
                         tainted++;
@@ -765,6 +770,16 @@ namespace OpenSim.Region.Terrain
             tainted++;
         }
 
+        /// <summary>
+        /// Adds meters (positive or negative) to terrain height
+        /// </summary>
+        /// <param name="meters">Positive or negative value to add to new array</param>
+        public void Elevate(float meters)
+        {
+            heightmap.Elevate((double)meters);
+            tainted++;
+        }
+
         /// <summary>
         /// Loads a file consisting of 256x256 doubles and imports it as an array into the map.
         /// </summary>

OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Grid.cs

@@ -96,6 +96,24 @@ namespace libTerrain
             return this;
         }
 
+        public Channel Elevate(double meters)
+        {
+            SetDiff();
+
+            int x, y;
+
+            for (x = 0; x < w; x++)
+            {
+                for (y = 0; y < h; y++)
+                {
+                        map[x, y] += meters;
+                }
+            }
+
+            return this;
+        }
+
+
         public Channel Clip()
         {
             int x, y;