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authorAdam Frisby2008-03-03 08:35:59 +0000
committerAdam Frisby2008-03-03 08:35:59 +0000
commitc5d1f87cd202663f2f26ca90a973d9763070dda3 (patch)
treeb1941867d13d1d3b29b46483e6b58cba536c72ca /OpenSim/Region/Environment/Modules/Terrain/FloodBrushes/SmoothArea.cs
parent* Applying Ahzz's profile patch. Thanks Ahzz! (diff)
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* Removed and sorted using clauses in a number of files.
* Cleaned up ITerrainChannel * Implemented Raise, Lower, Smooth, Flatten, Noise Terrain Paint Brushes * Implemented Raise, Lower, Smooth, Flatten, Noise Terrain Fill Brushes * Implemented Export functionality for RAW32 terrain loader * Implemented Import/Export for SLRAW terrain loader * Implemented Export for JPEG terrain loader
Diffstat (limited to 'OpenSim/Region/Environment/Modules/Terrain/FloodBrushes/SmoothArea.cs')
-rw-r--r--OpenSim/Region/Environment/Modules/Terrain/FloodBrushes/SmoothArea.cs107
1 files changed, 107 insertions, 0 deletions
diff --git a/OpenSim/Region/Environment/Modules/Terrain/FloodBrushes/SmoothArea.cs b/OpenSim/Region/Environment/Modules/Terrain/FloodBrushes/SmoothArea.cs
new file mode 100644
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+++ b/OpenSim/Region/Environment/Modules/Terrain/FloodBrushes/SmoothArea.cs
@@ -0,0 +1,107 @@
1/*
2* Copyright (c) Contributors, http://opensimulator.org/
3* See CONTRIBUTORS.TXT for a full list of copyright holders.
4*
5* Redistribution and use in source and binary forms, with or without
6* modification, are permitted provided that the following conditions are met:
7* * Redistributions of source code must retain the above copyright
8* notice, this list of conditions and the following disclaimer.
9* * Redistributions in binary form must reproduce the above copyright
10* notice, this list of conditions and the following disclaimer in the
11* documentation and/or other materials provided with the distribution.
12* * Neither the name of the OpenSim Project nor the
13* names of its contributors may be used to endorse or promote products
14* derived from this software without specific prior written permission.
15*
16* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26*
27*/
28using OpenSim.Region.Environment.Interfaces;
29
30namespace OpenSim.Region.Environment.Modules.Terrain.FloodBrushes
31{
32 public class SmoothArea : ITerrainFloodEffect
33 {
34 private double GetBilinearInterpolate(double x, double y, ITerrainChannel map)
35 {
36 int w = map.Width;
37 int h = map.Height;
38
39 if (x > w - 2.0)
40 x = w - 2.0;
41 if (y > h - 2.0)
42 y = h - 2.0;
43 if (x < 0.0)
44 x = 0.0;
45 if (y < 0.0)
46 y = 0.0;
47
48 int stepSize = 1;
49 double h00 = map[(int)x, (int)y];
50 double h10 = map[(int)x + stepSize, (int)y];
51 double h01 = map[(int)x, (int)y + stepSize];
52 double h11 = map[(int)x + stepSize, (int)y + stepSize];
53 double h1 = h00;
54 double h2 = h10;
55 double h3 = h01;
56 double h4 = h11;
57 double a00 = h1;
58 double a10 = h2 - h1;
59 double a01 = h3 - h1;
60 double a11 = h1 - h2 - h3 + h4;
61 double partialx = x - (int)x;
62 double partialz = y - (int)y;
63 double hi = a00 + (a10 * partialx) + (a01 * partialz) + (a11 * partialx * partialz);
64 return hi;
65 }
66
67 #region ITerrainFloodEffect Members
68
69 public void FloodEffect(ITerrainChannel map, bool[,] fillArea, double strength)
70 {
71 double area = strength;
72 double step = strength / 4.0;
73
74 double[,] manipulate = new double[map.Width, map.Height];
75 int x, y;
76 double n, l;
77 for (x = 0; x < map.Width; x++)
78 {
79 for (y = 0; y < map.Height; y++)
80 {
81 double average = 0.0;
82 int avgsteps = 0;
83
84 for (n = 0.0 - area; n < area; n += step)
85 {
86 for (l = 0.0 - area; l < area; l += step)
87 {
88 avgsteps++;
89 average += GetBilinearInterpolate(x + n, y + l, map);
90 }
91 }
92
93 manipulate[x, y] = average / avgsteps;
94 }
95 }
96 for (x = 0; x < map.Width; x++)
97 {
98 for (y = 0; y < map.Height; y++)
99 {
100 map[x, y] = manipulate[x, y];
101 }
102 }
103 }
104
105 #endregion
106 }
107} \ No newline at end of file