From f84937367f7180140bd17444d507977f9b7e3d2e Mon Sep 17 00:00:00 2001
From: Adam Frisby
Date: Sat, 21 Jul 2007 22:25:42 +0000
Subject: * Deleted libTerrain-BSD.dll * Added libTerrain to BasicTerrain
 directly as a subfolder

---
 .../libTerrainBSD/Channel/Editing/Flatten.cs       | 102 +++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Editing/Flatten.cs

(limited to 'OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Editing/Flatten.cs')

diff --git a/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Editing/Flatten.cs b/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Editing/Flatten.cs
new file mode 100644
index 0000000..5e5254d
--- /dev/null
+++ b/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Editing/Flatten.cs
@@ -0,0 +1,102 @@
+/*
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of libTerrain nor the names of
+      its contributors may be used to endorse or promote products
+      derived from this software without specific prior written
+      permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace libTerrain
+{
+    partial class Channel
+    {
+        /// <summary>
+        /// Flattens the area underneath rx,ry by moving it to the average of the area. Uses a spherical mask provided by the raise() function.
+        /// </summary>
+        /// <param name="rx">The X coordinate of the terrain mask</param>
+        /// <param name="ry">The Y coordinate of the terrain mask</param>
+        /// <param name="size">The size of the terrain mask</param>
+        /// <param name="amount">The scale of the terrain mask</param>
+        public void flatten(double rx, double ry, double size, double amount)
+        {
+            // Generate the mask
+            Channel temp = new Channel(w, h);
+            temp.fill(0);
+            temp.raise(rx, ry, size, amount);
+            temp.normalise();
+            double total_mod = temp.sum();
+
+            // Establish the average height under the area
+            Channel newmap = new Channel(w, h);
+            newmap.map = (double[,])map.Clone();
+
+            newmap *= temp;
+
+            double total_terrain = newmap.sum();
+            double avg_height = total_terrain / total_mod;
+
+            // Create a flat terrain using the average height
+            Channel flat = new Channel(w, h);
+            flat.fill(avg_height);
+
+            // Blend the current terrain with the average height terrain
+            // using the "raised" empty terrain as a mask
+            blend(flat, temp);
+
+        }
+
+        public void flatten(Channel mask, double amount)
+        {
+            // Generate the mask
+            Channel temp = mask * amount;
+            temp.clip(0, 1); // Cut off out-of-bounds values
+
+            double total_mod = temp.sum();
+
+            // Establish the average height under the area
+            Channel map = new Channel(w, h);
+            map.map = (double[,])this.map.Clone();
+
+            map *= temp;
+
+            double total_terrain = map.sum();
+            double avg_height = total_terrain / total_mod;
+
+            // Create a flat terrain using the average height
+            Channel flat = new Channel(w, h);
+            flat.fill(avg_height);
+
+            // Blend the current terrain with the average height terrain
+            // using the "raised" empty terrain as a mask
+            blend(flat, temp);
+        }
+    }
+}
\ No newline at end of file
-- 
cgit v1.1