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author | Adam Frisby | 2007-07-21 22:25:42 +0000 |
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committer | Adam Frisby | 2007-07-21 22:25:42 +0000 |
commit | f84937367f7180140bd17444d507977f9b7e3d2e (patch) | |
tree | 944f2824669e42b5df3b6655bd09999c89b50376 /OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Common.cs | |
parent | * Renamed terrain functions to match OpenSim naming styles. (diff) | |
download | opensim-SC-f84937367f7180140bd17444d507977f9b7e3d2e.zip opensim-SC-f84937367f7180140bd17444d507977f9b7e3d2e.tar.gz opensim-SC-f84937367f7180140bd17444d507977f9b7e3d2e.tar.bz2 opensim-SC-f84937367f7180140bd17444d507977f9b7e3d2e.tar.xz |
* Deleted libTerrain-BSD.dll
* Added libTerrain to BasicTerrain directly as a subfolder
Diffstat (limited to '')
-rw-r--r-- | OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Common.cs | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Common.cs b/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Common.cs new file mode 100644 index 0000000..438359c --- /dev/null +++ b/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Channel/Common.cs | |||
@@ -0,0 +1,228 @@ | |||
1 | /* | ||
2 | Redistribution and use in source and binary forms, with or without | ||
3 | modification, are permitted provided that the following conditions are | ||
4 | met: | ||
5 | |||
6 | * Redistributions of source code must retain the above copyright | ||
7 | notice, this list of conditions and the following disclaimer. | ||
8 | |||
9 | * Redistributions in binary form must reproduce the above | ||
10 | copyright notice, this list of conditions and the following | ||
11 | disclaimer in the documentation and/or other materials provided | ||
12 | with the distribution. | ||
13 | |||
14 | * Neither the name of libTerrain nor the names of | ||
15 | its contributors may be used to endorse or promote products | ||
16 | derived from this software without specific prior written | ||
17 | permission. | ||
18 | |||
19 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
20 | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
21 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
22 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
23 | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
24 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
25 | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
26 | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
27 | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
28 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
29 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
30 | */ | ||
31 | |||
32 | |||
33 | using System; | ||
34 | using System.Collections.Generic; | ||
35 | using System.Text; | ||
36 | |||
37 | namespace libTerrain | ||
38 | { | ||
39 | public partial class Channel | ||
40 | { | ||
41 | public int getWidth() | ||
42 | { | ||
43 | return w; | ||
44 | } | ||
45 | public int getHeight() | ||
46 | { | ||
47 | return h; | ||
48 | } | ||
49 | |||
50 | public Channel copy() | ||
51 | { | ||
52 | Channel x = new Channel(w, h); | ||
53 | x.map = (double[,])this.map.Clone(); | ||
54 | return x; | ||
55 | } | ||
56 | |||
57 | public void set(int x, int y, double val) | ||
58 | { | ||
59 | if (x >= w) | ||
60 | throw new Exception("Bounds error while setting pixel (width)"); | ||
61 | if (y >= h) | ||
62 | throw new Exception("Bounds error while setting pixel (height)"); | ||
63 | if (x < 0) | ||
64 | throw new Exception("Bounds error while setting pixel (width)"); | ||
65 | if (y < 0) | ||
66 | throw new Exception("Bounds error while setting pixel (height)"); | ||
67 | |||
68 | map[x, y] = val; | ||
69 | } | ||
70 | |||
71 | public void setClip(int x, int y, double val) | ||
72 | { | ||
73 | if (x >= w) | ||
74 | throw new Exception("Bounds error while setting pixel (width)"); | ||
75 | if (y >= h) | ||
76 | throw new Exception("Bounds error while setting pixel (height)"); | ||
77 | if (x < 0) | ||
78 | throw new Exception("Bounds error while setting pixel (width)"); | ||
79 | if (y < 0) | ||
80 | throw new Exception("Bounds error while setting pixel (height)"); | ||
81 | |||
82 | if (val > 1.0) | ||
83 | val = 1.0; | ||
84 | if (val < 0.0) | ||
85 | val = 0.0; | ||
86 | |||
87 | map[x, y] = val; | ||
88 | } | ||
89 | |||
90 | private double getBilinearInterpolate(double x, double y) | ||
91 | { | ||
92 | if (x > w - 2.0) | ||
93 | x = w - 2.0; | ||
94 | if (y > h - 2.0) | ||
95 | y = h - 2.0; | ||
96 | if (x < 0.0) | ||
97 | x = 0.0; | ||
98 | if (y < 0.0) | ||
99 | y = 0.0; | ||
100 | |||
101 | int STEP_SIZE = 1; | ||
102 | double h00 = get((int)x, (int)y); | ||
103 | double h10 = get((int)x + STEP_SIZE, (int)y); | ||
104 | double h01 = get((int)x, (int)y + STEP_SIZE); | ||
105 | double h11 = get((int)x + STEP_SIZE, (int)y + STEP_SIZE); | ||
106 | double h1 = h00; | ||
107 | double h2 = h10; | ||
108 | double h3 = h01; | ||
109 | double h4 = h11; | ||
110 | double a00 = h1; | ||
111 | double a10 = h2 - h1; | ||
112 | double a01 = h3 - h1; | ||
113 | double a11 = h1 - h2 - h3 + h4; | ||
114 | double partialx = x - (int)x; | ||
115 | double partialz = y - (int)y; | ||
116 | double hi = a00 + (a10 * partialx) + (a01 * partialz) + (a11 * partialx * partialz); | ||
117 | return hi; | ||
118 | } | ||
119 | |||
120 | public double get(int x, int y) | ||
121 | { | ||
122 | if (x >= w) | ||
123 | x = w - 1; | ||
124 | if (y >= h) | ||
125 | y = h - 1; | ||
126 | if (x < 0) | ||
127 | x = 0; | ||
128 | if (y < 0) | ||
129 | y = 0; | ||
130 | return map[x, y]; | ||
131 | } | ||
132 | |||
133 | public void setWrap(int x, int y, double val) | ||
134 | { | ||
135 | map[x % w, y % h] = val; | ||
136 | } | ||
137 | |||
138 | public void setWrapClip(int x, int y, double val) | ||
139 | { | ||
140 | if (val > 1.0) | ||
141 | val = 1.0; | ||
142 | if (val < 0.0) | ||
143 | val = 0.0; | ||
144 | |||
145 | map[x % w, y % h] = val; | ||
146 | } | ||
147 | |||
148 | public void fill(double val) | ||
149 | { | ||
150 | int x, y; | ||
151 | for (x = 0; x < w; x++) | ||
152 | { | ||
153 | for (y = 0; y < h; y++) | ||
154 | { | ||
155 | map[x, y] = val; | ||
156 | } | ||
157 | } | ||
158 | } | ||
159 | |||
160 | public void fill(double min, double max, double val) | ||
161 | { | ||
162 | int x, y; | ||
163 | for (x = 0; x < w; x++) | ||
164 | { | ||
165 | for (y = 0; y < h; y++) | ||
166 | { | ||
167 | if (map[x, y] >= min && map[x, y] <= max) | ||
168 | map[x, y] = val; | ||
169 | } | ||
170 | } | ||
171 | } | ||
172 | |||
173 | public double findMax() | ||
174 | { | ||
175 | int x, y; | ||
176 | double max = double.MinValue; | ||
177 | |||
178 | for (x = 0; x < w; x++) | ||
179 | { | ||
180 | for (y = 0; y < h; y++) | ||
181 | { | ||
182 | if (map[x, y] > max) | ||
183 | max = map[x, y]; | ||
184 | } | ||
185 | } | ||
186 | |||
187 | return max; | ||
188 | } | ||
189 | |||
190 | public double findMin() | ||
191 | { | ||
192 | int x, y; | ||
193 | double min = double.MaxValue; | ||
194 | |||
195 | for (x = 0; x < w; x++) | ||
196 | { | ||
197 | for (y = 0; y < h; y++) | ||
198 | { | ||
199 | if (map[x, y] < min) | ||
200 | min = map[x, y]; | ||
201 | } | ||
202 | } | ||
203 | |||
204 | return min; | ||
205 | } | ||
206 | |||
207 | public double sum() | ||
208 | { | ||
209 | int x, y; | ||
210 | double sum = 0.0; | ||
211 | |||
212 | for (x = 0; x < w; x++) | ||
213 | { | ||
214 | for (y = 0; y < h; y++) | ||
215 | { | ||
216 | sum += map[x, y]; | ||
217 | } | ||
218 | } | ||
219 | |||
220 | return sum; | ||
221 | } | ||
222 | |||
223 | public double avg() | ||
224 | { | ||
225 | return sum() / (w * h); | ||
226 | } | ||
227 | } | ||
228 | } | ||