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/* Copyright (c) 2008 The University of Notre Dame. All Rights Reserved. |
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* |
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* The University of Notre Dame grants you ("Licensee") a |
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* non-exclusive, royalty free, license to use, modify and |
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* redistribute this software in source and binary code form, provided |
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* that the following conditions are met: |
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* |
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* 1. Acknowledgement of the program authors must be made in any |
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* publication of scientific results based in part on use of the |
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* program. An acceptable form of acknowledgement is citation of |
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* the article in which the program was described (Matthew |
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* A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher |
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* J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented |
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* Parallel Simulation Engine for Molecular Dynamics," |
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* J. Comput. Chem. 26, pp. 252-271 (2005)) |
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* |
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* 2. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 3. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the |
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* distribution. |
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* |
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* This software is provided "AS IS," without a warranty of any |
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* kind. All express or implied conditions, representations and |
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* warranties, including any implied warranty of merchantability, |
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* fitness for a particular purpose or non-infringement, are hereby |
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* excluded. The University of Notre Dame and its licensors shall not |
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* be liable for any damages suffered by licensee as a result of |
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* using, modifying or distributing the software or its |
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* derivatives. In no event will the University of Notre Dame or its |
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* licensors be liable for any lost revenue, profit or data, or for |
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* direct, indirect, special, consequential, incidental or punitive |
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* damages, however caused and regardless of the theory of liability, |
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* arising out of the use of or inability to use software, even if the |
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* University of Notre Dame has been advised of the possibility of |
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* such damages. |
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* |
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* |
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* Triangle.cpp |
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* |
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* Purpose: Provide basic triangle object for OOPSE |
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* |
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* Created by Charles F. Vardeman II on 29 July 2008. |
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* @author Charles F. Vardeman II |
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* @version $Id: Triangle.cpp,v 1.2 2008-12-05 16:20:38 chuckv Exp $ |
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* |
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*/ |
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|
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#include "math/Triangle.hpp" |
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|
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using namespace oopse; |
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|
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|
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Triangle::Triangle() : HaveNormal_(false), HaveCentroid_(false),HaveArea_(false), area_(0.0), normal_(V3Zero), |
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centroid_(V3Zero),facetVelocity_(V3Zero), mass_(0.0), |
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a_(V3Zero),b_(V3Zero),c_(V3Zero){ |
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} |
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|
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void Triangle::addVertices(Vector3d P1, Vector3d P2, Vector3d P3){ |
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vertices_[0] = P1; |
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vertices_[1] = P2; |
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vertices_[2] = P3; |
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|
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// Compute some quantites like a,b,c |
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a_ = P1-P2; |
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b_ = P1-P3; |
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c_ = P2-P3; |
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} |
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|
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|
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RealType Triangle::computeArea(){ |
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HaveArea_ = true; |
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area_ = getNormal().length() * 0.5; |
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return area_; |
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} |
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|
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Vector3d Triangle::computeNormal(){ |
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HaveNormal_ = true; |
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normal_ = cross(a_,b_); |
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return normal_; |
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} |
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|
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Vector3d Triangle::computeCentroid(){ |
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HaveCentroid_ = true; |
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centroid_ = (vertices_[0] + vertices_[1] + vertices_[2])/3.0; |
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return centroid_; |
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} |
