diff options
Diffstat (limited to 'OpenSim/Region/CoreModules/World/Terrain/Modifiers/SmoothModifier.cs')
-rw-r--r-- | OpenSim/Region/CoreModules/World/Terrain/Modifiers/SmoothModifier.cs | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/OpenSim/Region/CoreModules/World/Terrain/Modifiers/SmoothModifier.cs b/OpenSim/Region/CoreModules/World/Terrain/Modifiers/SmoothModifier.cs new file mode 100644 index 0000000..9f8d5b2 --- /dev/null +++ b/OpenSim/Region/CoreModules/World/Terrain/Modifiers/SmoothModifier.cs | |||
@@ -0,0 +1,131 @@ | |||
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 OpenSimulator 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 | using System; | ||
28 | using OpenSim.Region.CoreModules.World.Terrain; | ||
29 | using OpenSim.Region.Framework.Interfaces; | ||
30 | |||
31 | namespace OpenSim.Region.CoreModules.World.Terrain.Modifiers | ||
32 | { | ||
33 | public class SmoothModifier : TerrainModifier | ||
34 | { | ||
35 | public SmoothModifier(ITerrainModule module) : base(module) | ||
36 | { | ||
37 | } | ||
38 | |||
39 | public override string ModifyTerrain(ITerrainChannel map, string[] args) | ||
40 | { | ||
41 | string result; | ||
42 | if (args.Length < 3) | ||
43 | { | ||
44 | result = "Usage: " + GetUsage(); | ||
45 | } | ||
46 | else | ||
47 | { | ||
48 | TerrainModifierData data; | ||
49 | result = this.parseParameters(args, out data); | ||
50 | |||
51 | // Context-specific validation | ||
52 | if (result == String.Empty) | ||
53 | { | ||
54 | if (data.bevel == "taper") | ||
55 | { | ||
56 | if (data.bevelevation < 0.01 || data.bevelevation > 0.99) | ||
57 | { | ||
58 | result = String.Format("Taper must be 0.01 to 0.99: {0}", data.bevelevation); | ||
59 | } | ||
60 | } | ||
61 | else | ||
62 | { | ||
63 | data.bevelevation = 2.0f / 3.0f; | ||
64 | } | ||
65 | |||
66 | if (data.elevation < 0.0 || data.elevation > 1.0) | ||
67 | { | ||
68 | result = String.Format("Smoothing strength must be 0.0 to 1.0: {0}", data.elevation); | ||
69 | } | ||
70 | |||
71 | if (data.shape == String.Empty) | ||
72 | { | ||
73 | data.shape = "rectangle"; | ||
74 | data.x0 = 0; | ||
75 | data.y0 = 0; | ||
76 | data.dx = map.Width; | ||
77 | data.dy = map.Height; | ||
78 | } | ||
79 | } | ||
80 | |||
81 | // if it's all good, then do the work | ||
82 | if (result == String.Empty) | ||
83 | { | ||
84 | this.applyModification(map, data); | ||
85 | } | ||
86 | } | ||
87 | |||
88 | return result; | ||
89 | } | ||
90 | |||
91 | public override string GetUsage() | ||
92 | { | ||
93 | string val = "smooth <strength> [ -rec=x1,y1,dx[,dy] | -ell=x0,y0,rx[,ry] ] [-taper=<fraction>]" | ||
94 | + "\nSmooths all points within the specified range using a simple averaging algorithm."; | ||
95 | return val; | ||
96 | } | ||
97 | |||
98 | public override double operate(double[,] map, TerrainModifierData data, int x, int y) | ||
99 | { | ||
100 | double[] scale = new double[3]; | ||
101 | scale[0] = data.elevation; | ||
102 | scale[1] = ((1.0 - scale[0]) * data.bevelevation) / 8.0; | ||
103 | scale[2] = ((1.0 - scale[0]) * (1.0 - data.bevelevation)) / 16.0; | ||
104 | int xMax = map.GetLength(0); | ||
105 | int yMax = map.GetLength(1); | ||
106 | double result; | ||
107 | if ((x == 0) || (y == 0) || (x == (xMax - 1)) || (y == (yMax - 1))) | ||
108 | { | ||
109 | result = map[x, y]; | ||
110 | } | ||
111 | else | ||
112 | { | ||
113 | result = 0.0; | ||
114 | for(int yPos = (y - 2); yPos < (y + 3); yPos++) | ||
115 | { | ||
116 | int yVal = (yPos <= 0) ? 0 : ((yPos < yMax) ? yPos : yMax - 1); | ||
117 | for(int xPos = (x - 2); xPos < (x + 3); xPos++) | ||
118 | { | ||
119 | int xVal = (xPos <= 0) ? 0 : ((xPos < xMax) ? xPos : xMax - 1); | ||
120 | int dist = Math.Max(Math.Abs(x - xVal), Math.Abs(y - yVal)); | ||
121 | result += map[xVal, yVal] * scale[dist]; | ||
122 | } | ||
123 | } | ||
124 | } | ||
125 | return result; | ||
126 | } | ||
127 | |||
128 | } | ||
129 | |||
130 | } | ||
131 | |||