1 /*
2  * Copyright (c) 2009-2010 jMonkeyEngine
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are
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12  * * Redistributions in binary form must reproduce the above copyright
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14  *   documentation and/or other materials provided with the distribution.
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17  *   may be used to endorse or promote products derived from this software
18  *   without specific prior written permission.
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20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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31  */
32 
33 package jme3tools.optimize;
34 
35 import com.jme3.math.Vector3f;
36 
37 public final class OCTTriangle {
38 
39     private final Vector3f pointa = new Vector3f();
40     private final Vector3f pointb = new Vector3f();
41     private final Vector3f pointc = new Vector3f();
42     private final int index;
43     private final int geomIndex;
44 
OCTTriangle(Vector3f p1, Vector3f p2, Vector3f p3, int index, int geomIndex)45     public OCTTriangle(Vector3f p1, Vector3f p2, Vector3f p3, int index, int geomIndex) {
46         pointa.set(p1);
47         pointb.set(p2);
48         pointc.set(p3);
49         this.index = index;
50         this.geomIndex = geomIndex;
51     }
52 
getGeometryIndex()53     public int getGeometryIndex() {
54         return geomIndex;
55     }
56 
getTriangleIndex()57     public int getTriangleIndex() {
58         return index;
59     }
60 
get1()61     public Vector3f get1(){
62         return pointa;
63     }
64 
get2()65     public Vector3f get2(){
66         return pointb;
67     }
68 
get3()69     public Vector3f get3(){
70         return pointc;
71     }
72 
getNormal()73     public Vector3f getNormal(){
74         Vector3f normal = new Vector3f(pointb);
75         normal.subtractLocal(pointa).crossLocal(pointc.x-pointa.x, pointc.y-pointa.y, pointc.z-pointa.z);
76         normal.normalizeLocal();
77         return normal;
78     }
79 
80 }
81