1 files changed, 41 insertions, 0 deletions

diff --git a/OpenSim.Terrain.BasicTerrain/TerrainEngine.cs b/OpenSim.Terrain.BasicTerrain/TerrainEngine.cs
index 38a4989..e766f71 100644
--- a/OpenSim.Terrain.BasicTerrain/TerrainEngine.cs
+++ b/OpenSim.Terrain.BasicTerrain/TerrainEngine.cs
@@ -1,6 +1,7 @@
 using System;

 using System.Collections.Generic;

 using System.Text;

+using System.Drawing;

 using libTerrain;

 

 namespace OpenSim.Terrain

@@ -403,5 +404,45 @@ namespace OpenSim.Terrain
                 heightmap.set(x,y,(double)value);

             }

         }

+

+        /// <summary>

+        /// Exports the current heightmap to a PNG file

+        /// </summary>

+        /// <param name="filename">The destination filename for the image</param>

+        /// <param name="gradientmap">A 1x*height* image which contains the colour gradient to export with. Must be at least 1x2 pixels, 1x256 or more is ideal.</param>

+        public void exportImage(string filename, string gradientmap)

+        {

+            try

+            {

+                Bitmap gradientmapLd = new Bitmap(gradientmap);

+

+                int pallete = gradientmapLd.Width;

+

+                Bitmap bmp = new Bitmap(heightmap.w, heightmap.h);

+                Color[] colours = new Color[pallete];

+

+                for (int i = 0; i < pallete; i++)

+                {

+                    colours[i] = gradientmapLd.GetPixel(1, i);

+                }

+

+                Channel copy = heightmap.copy();

+                for (int x = 0; x < copy.w; x++)

+                {

+                    for (int y = 0; y < copy.h; y++)

+                    {

+                        // 512 is the largest possible height before colours clamp

+                        int colorindex = (int)(Math.Max(Math.Min(1.0, copy.get(x, y) / 512.0), 0.0) * pallete);

+                        bmp.SetPixel(x, y, colours[colorindex]);

+                    }

+                }

+

+                bmp.Save(filename, System.Drawing.Imaging.ImageFormat.Png);

+            }

+            catch (Exception e)

+            {

+                Console.WriteLine("Failed generating terrain map: " + e.ToString());

+            }

+        }

     }

 }