src/math/Vector3.hpp

 /*
 * Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
 *
 * The University of Notre Dame grants you ("Licensee") a
 * non-exclusive, royalty free, license to use, modify and
 * redistribute this software in source and binary code form, provided
 * that the following conditions are met:
 *
 * 1. Acknowledgement of the program authors must be made in any
 *    publication of scientific results based in part on use of the
 *    program.  An acceptable form of acknowledgement is citation of
 *    the article in which the program was described (Matthew
 *    A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher
 *    J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented
 *    Parallel Simulation Engine for Molecular Dynamics,"
 *    J. Comput. Chem. 26, pp. 252-271 (2005))
 *
 * 2. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 3. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the
 *    distribution.
 *
 * This software is provided "AS IS," without a warranty of any
 * kind. All express or implied conditions, representations and
 * warranties, including any implied warranty of merchantability,
 * fitness for a particular purpose or non-infringement, are hereby
 * excluded.  The University of Notre Dame and its licensors shall not
 * be liable for any damages suffered by licensee as a result of
 * using, modifying or distributing the software or its
 * derivatives. In no event will the University of Notre Dame or its
 * licensors be liable for any lost revenue, profit or data, or for
 * direct, indirect, special, consequential, incidental or punitive
 * damages, however caused and regardless of the theory of liability,
 * arising out of the use of or inability to use software, even if the
 * University of Notre Dame has been advised of the possibility of
 * such damages.
 */
 
/**
 * @file Vector3.hpp
 * @author Teng Lin
 * @date 09/14/2004
 * @version 1.0
 */
 
#ifndef MATH_VECTOR3_HPP
#define MATH_VECTOR3_HPP

#include <cassert>
#include <cmath>

#include "Vector.hpp"

namespace oopse {
  
  /**
   * @class Vector3 Vector3.hpp "math/Vector3.hpp"
   * @brief 
   */
  
  template<typename Real>
  class Vector3 : public Vector<Real, 3>{
  public:
    typedef Real ElemType;
    typedef Real* ElemPoinerType;
    
    Vector3() : Vector<Real, 3>(){}
    
    /** Constructs and initializes a Vector3 from x, y, z coordinates */
    inline Vector3( Real x, Real y, Real z) {
      data_[0] = x;
      data_[1] = y;
      data_[2] = z;
    }

    /** Constructs and initializes from an array*/
    inline Vector3(Real* array) : Vector<Real, 3>(array) {}
    
    inline Vector3(const Vector<Real, 3>& v) : Vector<Real, 3>(v) {}
    
    inline Vector3<Real>& operator = (const Vector<Real, 3>& v) {
      if (this == &v) { return *this; }
      Vector<Real, 3>::operator=(v);
      return *this;
    }
    
    /**
     * Retunrs reference of the first element of Vector3.
     * @return reference of the first element of Vector3
     */
    inline Real& x() {  return data_[0];}
    
    /**
     * Retunrs the first element of Vector3.
     * @return  the first element of Vector3
     */
    inline Real x() const {  return data_[0];}
    
    /**
     * Retunrs reference of the second element of Vector3.
     * @return reference of the second element of Vector3
     */
    inline Real& y() {  return data_[1];}
    
    /**
     * Retunrs  the second element of Vector3.
     * @return c the second element of Vector3
     */
    inline Real y() const {  return data_[1];}
    
    /**
     * Retunrs reference of the third element of Vector3.
     * @return reference of the third element of Vector3
     */
    inline Real& z() {  return data_[2];}
    
    /**
     * Retunrs  the third element of Vector3.
     * @return f the third element of Vector3
     */
    inline Real z() const {  return data_[2];}
    
  };
  
  /**
   * Returns the cross product of two Vectors
   * @param v1 first vector
   * @param v2 second vector
   * @return the cross product  of v1 and v2
   * @see #vector::dot
   */
  template<typename Real>
  Vector3<Real> cross( const Vector3<Real>& v1, const Vector3<Real>& v2 ) {
    Vector3<Real> result;
    
    result.x() = v1.y() * v2.z() - v1.z() * v2.y();
    result.y() = v1.z() * v2.x() - v1.x() * v2.z();
    result.z() = v1.x() * v2.y() - v1.y() * v2.x();
    
    return result;
  }

  typedef Vector3<int> Vector3i;
  
  typedef Vector3<double> Vector3d;    

    const Vector3d V3Zero(0.0 , 0.0, 0.0);
    const Vector3d V3X( 1.0, 0.0, 0.0 ) ;
    const Vector3d V3Y( 0.0, 1.0, 0.0 ) ;
    const Vector3d V3Z ( 0.0, 0.0, 1.0 ) ;    
  
}

#endif
Revision:	1930
Committed:	Wed Jan 12 22:41:40 2005 UTC (19 years, 5 months ago) by gezelter
File size:	4899 byte(s)
Log Message:	merging new_design branch into OOPSE-2.0
#	User	Rev	Content
1	gezelter	1930	/*
2			* Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
3	tim	1563	*
4	gezelter	1930	* The University of Notre Dame grants you ("Licensee") a
5			* non-exclusive, royalty free, license to use, modify and
6			* redistribute this software in source and binary code form, provided
7			* that the following conditions are met:
8			*
9			* 1. Acknowledgement of the program authors must be made in any
10			* publication of scientific results based in part on use of the
11			* program. An acceptable form of acknowledgement is citation of
12			* the article in which the program was described (Matthew
13			* A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher
14			* J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented
15			* Parallel Simulation Engine for Molecular Dynamics,"
16			* J. Comput. Chem. 26, pp. 252-271 (2005))
17			*
18			* 2. Redistributions of source code must retain the above copyright
19			* notice, this list of conditions and the following disclaimer.
20			*
21			* 3. Redistributions in binary form must reproduce the above copyright
22			* notice, this list of conditions and the following disclaimer in the
23			* documentation and/or other materials provided with the
24			* distribution.
25			*
26			* This software is provided "AS IS," without a warranty of any
27			* kind. All express or implied conditions, representations and
28			* warranties, including any implied warranty of merchantability,
29			* fitness for a particular purpose or non-infringement, are hereby
30			* excluded. The University of Notre Dame and its licensors shall not
31			* be liable for any damages suffered by licensee as a result of
32			* using, modifying or distributing the software or its
33			* derivatives. In no event will the University of Notre Dame or its
34			* licensors be liable for any lost revenue, profit or data, or for
35			* direct, indirect, special, consequential, incidental or punitive
36			* damages, however caused and regardless of the theory of liability,
37			* arising out of the use of or inability to use software, even if the
38			* University of Notre Dame has been advised of the possibility of
39			* such damages.
40	tim	1563	*/
41	gezelter	1930
42	tim	1563	/**
43			* @file Vector3.hpp
44			* @author Teng Lin
45			* @date 09/14/2004
46			* @version 1.0
47			*/
48
49			#ifndef MATH_VECTOR3_HPP
50			#define MATH_VECTOR3_HPP
51
52			#include <cassert>
53			#include <cmath>
54
55			#include "Vector.hpp"
56
57			namespace oopse {
58	gezelter	1590
59			/**
60			* @class Vector3 Vector3.hpp "math/Vector3.hpp"
61			* @brief
62			*/
63
64			template<typename Real>
65			class Vector3 : public Vector<Real, 3>{
66			public:
67	tim	1630	typedef Real ElemType;
68			typedef Real* ElemPoinerType;
69
70	gezelter	1590	Vector3() : Vector<Real, 3>(){}
71
72			/** Constructs and initializes a Vector3 from x, y, z coordinates */
73	gezelter	1930	inline Vector3( Real x, Real y, Real z) {
74	gezelter	1590	data_[0] = x;
75			data_[1] = y;
76			data_[2] = z;
77			}
78	tim	1644
79			/** Constructs and initializes from an array*/
80	gezelter	1930	inline Vector3(Real* array) : Vector<Real, 3>(array) {}
81	gezelter	1590
82			inline Vector3(const Vector<Real, 3>& v) : Vector<Real, 3>(v) {}
83
84			inline Vector3<Real>& operator = (const Vector<Real, 3>& v) {
85			if (this == &v) { return *this; }
86			Vector<Real, 3>::operator=(v);
87			return *this;
88			}
89
90	tim	1563	/**
91	gezelter	1590	* Retunrs reference of the first element of Vector3.
92			* @return reference of the first element of Vector3
93	tim	1563	*/
94	gezelter	1590	inline Real& x() { return data_[0];}
95	tim	1563
96			/**
97	gezelter	1590	* Retunrs the first element of Vector3.
98			* @return the first element of Vector3
99	tim	1563	*/
100	gezelter	1590	inline Real x() const { return data_[0];}
101
102			/**
103			* Retunrs reference of the second element of Vector3.
104			* @return reference of the second element of Vector3
105			*/
106			inline Real& y() { return data_[1];}
107
108			/**
109			* Retunrs the second element of Vector3.
110			* @return c the second element of Vector3
111			*/
112			inline Real y() const { return data_[1];}
113
114			/**
115			* Retunrs reference of the third element of Vector3.
116			* @return reference of the third element of Vector3
117			*/
118			inline Real& z() { return data_[2];}
119
120			/**
121			* Retunrs the third element of Vector3.
122			* @return f the third element of Vector3
123			*/
124			inline Real z() const { return data_[2];}
125
126			};
127
128			/**
129			* Returns the cross product of two Vectors
130			* @param v1 first vector
131			* @param v2 second vector
132			* @return the cross product of v1 and v2
133			* @see #vector::dot
134			*/
135			template<typename Real>
136			Vector3<Real> cross( const Vector3<Real>& v1, const Vector3<Real>& v2 ) {
137			Vector3<Real> result;
138
139			result.x() = v1.y() * v2.z() - v1.z() * v2.y();
140			result.y() = v1.z() * v2.x() - v1.x() * v2.z();
141			result.z() = v1.x() * v2.y() - v1.y() * v2.x();
142
143			return result;
144			}
145	gezelter	1930
146			typedef Vector3<int> Vector3i;
147
148	tim	1592	typedef Vector3<double> Vector3d;
149	gezelter	1930
150			const Vector3d V3Zero(0.0 , 0.0, 0.0);
151			const Vector3d V3X( 1.0, 0.0, 0.0 ) ;
152			const Vector3d V3Y( 0.0, 1.0, 0.0 ) ;
153			const Vector3d V3Z ( 0.0, 0.0, 1.0 ) ;
154	gezelter	1590
155	tim	1563	}
156
157			#endif