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      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
      7  * met:
      8  *
      9  * * Redistributions of source code must retain the above copyright
     10  *   notice, this list of conditions and the following disclaimer.
     11  *
     12  * * Redistributions in binary form must reproduce the above copyright
     13  *   notice, this list of conditions and the following disclaimer in the
     14  *   documentation and/or other materials provided with the distribution.
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     16  * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
     17  *   may be used to endorse or promote products derived from this software
     18  *   without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
     24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     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 
     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 
     53     public int getGeometryIndex() {
     54         return geomIndex;
     55     }
     56 
     57     public int getTriangleIndex() {
     58         return index;
     59     }
     60 
     61     public Vector3f get1(){
     62         return pointa;
     63     }
     64 
     65     public Vector3f get2(){
     66         return pointb;
     67     }
     68 
     69     public Vector3f get3(){
     70         return pointc;
     71     }
     72 
     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