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root/group/trunk/OOPSE-2.0/src/math/Vector3.hpp
Revision: 1644
Committed: Mon Oct 25 22:46:19 2004 UTC (19 years, 8 months ago) by tim
File size: 3770 byte(s)
Log Message:
add getArray function to  RectMatrix and Vector classes

File Contents

# Content
1 /*
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
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 typedef Real ElemType;
52 typedef Real* ElemPoinerType;
53
54 Vector3() : Vector<Real, 3>(){}
55
56 /** Constructs and initializes a Vector3 from x, y, z coordinates */
57 inline Vector3( double x, double y, double z) {
58 data_[0] = x;
59 data_[1] = y;
60 data_[2] = z;
61 }
62
63 /** Constructs and initializes from an array*/
64 inline Vector3(double* array) : Vector<Real, 3>(array) {}
65
66 inline Vector3(const Vector<Real, 3>& v) : Vector<Real, 3>(v) {}
67
68 inline Vector3<Real>& operator = (const Vector<Real, 3>& v) {
69 if (this == &v) { return *this; }
70 Vector<Real, 3>::operator=(v);
71 return *this;
72 }
73
74 /**
75 * Retunrs reference of the first element of Vector3.
76 * @return reference of the first element of Vector3
77 */
78 inline Real& x() { return data_[0];}
79
80 /**
81 * Retunrs the first element of Vector3.
82 * @return the first element of Vector3
83 */
84 inline Real x() const { return data_[0];}
85
86 /**
87 * Retunrs reference of the second element of Vector3.
88 * @return reference of the second element of Vector3
89 */
90 inline Real& y() { return data_[1];}
91
92 /**
93 * Retunrs the second element of Vector3.
94 * @return c the second element of Vector3
95 */
96 inline Real y() const { return data_[1];}
97
98 /**
99 * Retunrs reference of the third element of Vector3.
100 * @return reference of the third element of Vector3
101 */
102 inline Real& z() { return data_[2];}
103
104 /**
105 * Retunrs the third element of Vector3.
106 * @return f the third element of Vector3
107 */
108 inline Real z() const { return data_[2];}
109
110 };
111
112 /**
113 * Returns the cross product of two Vectors
114 * @param v1 first vector
115 * @param v2 second vector
116 * @return the cross product of v1 and v2
117 * @see #vector::dot
118 */
119 template<typename Real>
120 Vector3<Real> cross( const Vector3<Real>& v1, const Vector3<Real>& v2 ) {
121 Vector3<Real> result;
122
123 result.x() = v1.y() * v2.z() - v1.z() * v2.y();
124 result.y() = v1.z() * v2.x() - v1.x() * v2.z();
125 result.z() = v1.x() * v2.y() - v1.y() * v2.x();
126
127 return result;
128 }
129
130 typedef Vector3<double> Vector3d;
131
132 }
133
134 #endif