src/math/Vector3.hpp

/*
 * Copyright (C) 2000-2004  Object Oriented Parallel Simulation Engine (OOPSE) project
 * 
 * Contact: oopse@oopse.org
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1
 * of the License, or (at your option) any later version.
 * All we ask is that proper credit is given for our work, which includes
 * - but is not limited to - adding the above copyright notice to the beginning
 * of your source code files, and to any copyright notice that you may distribute
 * with programs based on this work.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

/**
 * @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:

    Vector3() : Vector<Real, 3>(){}
    
    /** Constructs and initializes a Vector3 from x, y, z coordinates */
    inline Vector3( double x, double y, double z) {
      data_[0] = x;
      data_[1] = y;
      data_[2] = z;
    }
    
    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<double> Vector3d;    
  
}

#endif
Revision:	99
Committed:	Mon Oct 18 17:07:27 2004 UTC (21 years ago) by tim
File size:	3591 byte(s)
Log Message:	fix some bugs in Quaternion class
#	User	Rev	Content
1	tim	70	/*
2			* Copyright (C) 2000-2004 Object Oriented Parallel Simulation Engine (OOPSE) project
3			*
4			* Contact: oopse@oopse.org
5			*
6			* This program is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU Lesser General Public License
8			* as published by the Free Software Foundation; either version 2.1
9			* of the License, or (at your option) any later version.
10			* All we ask is that proper credit is given for our work, which includes
11			* - but is not limited to - adding the above copyright notice to the beginning
12			* of your source code files, and to any copyright notice that you may distribute
13			* with programs based on this work.
14			*
15			* This program is distributed in the hope that it will be useful,
16			* but WITHOUT ANY WARRANTY; without even the implied warranty of
17			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18			* GNU Lesser General Public License for more details.
19			*
20			* You should have received a copy of the GNU Lesser General Public License
21			* along with this program; if not, write to the Free Software
22			* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23			*
24			*/
25
26			/**
27			* @file Vector3.hpp
28			* @author Teng Lin
29			* @date 09/14/2004
30			* @version 1.0
31			*/
32
33			#ifndef MATH_VECTOR3_HPP
34			#define MATH_VECTOR3_HPP
35
36			#include <cassert>
37			#include <cmath>
38
39			#include "Vector.hpp"
40
41			namespace oopse {
42	gezelter	97
43			/**
44			* @class Vector3 Vector3.hpp "math/Vector3.hpp"
45			* @brief
46			*/
47
48			template<typename Real>
49			class Vector3 : public Vector<Real, 3>{
50			public:
51	tim	70
52	gezelter	97	Vector3() : Vector<Real, 3>(){}
53
54			/** Constructs and initializes a Vector3 from x, y, z coordinates */
55			inline Vector3( double x, double y, double z) {
56			data_[0] = x;
57			data_[1] = y;
58			data_[2] = z;
59			}
60
61			inline Vector3(const Vector<Real, 3>& v) : Vector<Real, 3>(v) {}
62
63			inline Vector3<Real>& operator = (const Vector<Real, 3>& v) {
64			if (this == &v) { return *this; }
65			Vector<Real, 3>::operator=(v);
66			return *this;
67			}
68
69	tim	70	/**
70	gezelter	97	* Retunrs reference of the first element of Vector3.
71			* @return reference of the first element of Vector3
72	tim	70	*/
73	gezelter	97	inline Real& x() { return data_[0];}
74	tim	70
75			/**
76	gezelter	97	* Retunrs the first element of Vector3.
77			* @return the first element of Vector3
78	tim	70	*/
79	gezelter	97	inline Real x() const { return data_[0];}
80
81			/**
82			* Retunrs reference of the second element of Vector3.
83			* @return reference of the second element of Vector3
84			*/
85			inline Real& y() { return data_[1];}
86
87			/**
88			* Retunrs the second element of Vector3.
89			* @return c the second element of Vector3
90			*/
91			inline Real y() const { return data_[1];}
92
93			/**
94			* Retunrs reference of the third element of Vector3.
95			* @return reference of the third element of Vector3
96			*/
97			inline Real& z() { return data_[2];}
98
99			/**
100			* Retunrs the third element of Vector3.
101			* @return f the third element of Vector3
102			*/
103			inline Real z() const { return data_[2];}
104
105			};
106
107			/**
108			* Returns the cross product of two Vectors
109			* @param v1 first vector
110			* @param v2 second vector
111			* @return the cross product of v1 and v2
112			* @see #vector::dot
113			*/
114			template<typename Real>
115			Vector3<Real> cross( const Vector3<Real>& v1, const Vector3<Real>& v2 ) {
116			Vector3<Real> result;
117
118			result.x() = v1.y() * v2.z() - v1.z() * v2.y();
119			result.y() = v1.z() * v2.x() - v1.x() * v2.z();
120			result.z() = v1.x() * v2.y() - v1.y() * v2.x();
121
122			return result;
123			}
124
125	tim	99	typedef Vector3<double> Vector3d;
126	gezelter	97
127	tim	70	}
128
129			#endif