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/* |
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* Copyright (c) 2005 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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/** |
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* @file Vector3.hpp |
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* @author Teng Lin |
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* @date 09/14/2004 |
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* @version 1.0 |
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*/ |
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|
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#ifndef MATH_VECTOR3_HPP |
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#define MATH_VECTOR3_HPP |
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|
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#include <cassert> |
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#include <cmath> |
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|
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#include "Vector.hpp" |
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|
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namespace oopse { |
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|
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/** |
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* @class Vector3 Vector3.hpp "math/Vector3.hpp" |
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* @brief |
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*/ |
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|
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template<typename Real> |
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class Vector3 : public Vector<Real, 3>{ |
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public: |
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typedef Real ElemType; |
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typedef Real* ElemPoinerType; |
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|
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Vector3() : Vector<Real, 3>(){} |
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|
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/** Constructs and initializes a Vector3 from x, y, z coordinates */ |
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inline Vector3( Real x, Real y, Real z) { |
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data_[0] = x; |
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data_[1] = y; |
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data_[2] = z; |
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} |
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|
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/** Constructs and initializes from an array*/ |
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inline Vector3(Real* array) : Vector<Real, 3>(array) {} |
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|
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inline Vector3(const Vector<Real, 3>& v) : Vector<Real, 3>(v) {} |
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|
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inline Vector3<Real>& operator = (const Vector<Real, 3>& v) { |
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if (this == &v) { return *this; } |
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Vector<Real, 3>::operator=(v); |
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return *this; |
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} |
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|
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/** |
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* Retunrs reference of the first element of Vector3. |
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* @return reference of the first element of Vector3 |
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*/ |
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inline Real& x() { return data_[0];} |
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|
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/** |
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* Retunrs the first element of Vector3. |
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* @return the first element of Vector3 |
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*/ |
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inline Real x() const { return data_[0];} |
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|
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/** |
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* Retunrs reference of the second element of Vector3. |
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* @return reference of the second element of Vector3 |
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*/ |
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inline Real& y() { return data_[1];} |
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|
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/** |
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* Retunrs the second element of Vector3. |
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* @return c the second element of Vector3 |
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*/ |
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inline Real y() const { return data_[1];} |
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|
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/** |
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* Retunrs reference of the third element of Vector3. |
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* @return reference of the third element of Vector3 |
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*/ |
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inline Real& z() { return data_[2];} |
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|
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/** |
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* Retunrs the third element of Vector3. |
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* @return f the third element of Vector3 |
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*/ |
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inline Real z() const { return data_[2];} |
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|
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}; |
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|
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/** |
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* Returns the cross product of two Vectors |
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* @param v1 first vector |
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* @param v2 second vector |
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* @return the cross product of v1 and v2 |
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* @see #vector::dot |
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*/ |
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template<typename Real> |
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Vector3<Real> cross( const Vector3<Real>& v1, const Vector3<Real>& v2 ) { |
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Vector3<Real> result; |
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|
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result.x() = v1.y() * v2.z() - v1.z() * v2.y(); |
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result.y() = v1.z() * v2.x() - v1.x() * v2.z(); |
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result.z() = v1.x() * v2.y() - v1.y() * v2.x(); |
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|
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return result; |
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} |
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|
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typedef Vector3<int> Vector3i; |
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|
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typedef Vector3<double> Vector3d; |
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|
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const Vector3d V3Zero(0.0 , 0.0, 0.0); |
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const Vector3d V3X( 1.0, 0.0, 0.0 ) ; |
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const Vector3d V3Y( 0.0, 1.0, 0.0 ) ; |
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const Vector3d V3Z ( 0.0, 0.0, 1.0 ) ; |
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|
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} |
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|
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#endif |
