Vector2.h
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1 /*
2  This file is part of the VRender library.
3  Copyright (C) 2005 Cyril Soler (Cyril.Soler@imag.fr)
4  Version 1.0.0, released on June 27, 2005.
5 
6  http://artis.imag.fr/Members/Cyril.Soler/VRender
7 
8  VRender is free software; you can redistribute it and/or modify
9  it under the terms of the GNU General Public License as published by
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20  51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
21 */
22 
23 /****************************************************************************
24 
25  Copyright (C) 2002-2014 Gilles Debunne. All rights reserved.
26 
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43 *****************************************************************************/
44 
45 #ifndef _VRENDER_VECTOR2_H
46 #define _VRENDER_VECTOR2_H
47 
48 #include <stdexcept>
49 #include <iostream>
50 
51 namespace vrender
52 {
53  class Vector3;
54 
55  class Vector2
56  {
57  public:
58  // ---------------------------------------------------------------------------
60 
61  static const Vector2 inf;
63 
64  // ---------------------------------------------------------------------------
66 
67  Vector2 ();
68  ~Vector2 ();
69  Vector2 (const Vector2&);
70  Vector2 (const Vector3& u);
71  Vector2 (double,double);
73 
74  // ---------------------------------------------------------------------------
76 
77  inline double x() const { return _xyz[0]; }
78  inline double y() const { return _xyz[1]; }
79  inline void setX(double r) { _xyz[0] = r; }
80  inline void setY(double r) { _xyz[1] = r; }
81  inline void setXY (double x,double y) { _xyz[0] = x; _xyz[1] = y; }
83 
84  // ---------------------------------------------------------------------------
86 
87  inline Vector2& operator= (const Vector2& u) { _xyz[0] = u._xyz[0]; _xyz[1] = u._xyz[1]; return *this; }
89 
90  // ---------------------------------------------------------------------------
92 
93  friend bool operator== (const Vector2&,const Vector2&);
94  friend bool operator!= (const Vector2&,const Vector2&);
96 
97  // ---------------------------------------------------------------------------
99 
100  inline Vector2& operator+= (const Vector2& v)
101  {
102  _xyz[0] += v._xyz[0];
103  _xyz[1] += v._xyz[1];
104  return *this;
105  }
106 
107  inline Vector2& operator-= (const Vector2& v)
108  {
109  _xyz[0] -= v._xyz[0];
110  _xyz[1] -= v._xyz[1];
111  return *this;
112  }
113 
114  inline Vector2& operator*= (double f) { _xyz[0] *= f; _xyz[1] *= f; return *this;}
115  inline Vector2& operator/= (double f) { _xyz[0] /= f; _xyz[1] /= f; return *this;}
116 
117  friend Vector2 operator- (const Vector2&);
118  static Vector2 mini(const Vector2&,const Vector2&) ;
119  static Vector2 maxi(const Vector2&,const Vector2&) ;
120 
121  inline Vector2 operator+(const Vector2& u) const
122  {
123  return Vector2(_xyz[0]+u._xyz[0],_xyz[1]+u._xyz[1]);
124  }
125  inline Vector2 operator-(const Vector2& u) const
126  {
127  return Vector2(_xyz[0]-u._xyz[0],_xyz[1]-u._xyz[1]);
128  }
129 
130  inline double operator*(const Vector2& u) const
131  {
132  return _xyz[0]*u._xyz[0] + _xyz[1]*u._xyz[1] ;
133  }
134 
135  inline double operator^(const Vector2& v) const
136  {
137  return _xyz[0]*v._xyz[1] - _xyz[1]*v._xyz[0] ;
138  }
139 
140  Vector2 operator/ (double v) { return Vector2(_xyz[0]/v,_xyz[1]/v); }
141  Vector2 operator* (double v) { return Vector2(_xyz[0]*v,_xyz[1]*v); }
142 
143  friend Vector2 operator* (double,const Vector2&);
145 
146  // ---------------------------------------------------------------------------
148 
149  double norm () const;
150  double squareNorm () const;
151  double infNorm () const;
152 
153  // ---------------------------------------------------------------------------
155 
156  friend std::ostream& operator<< (std::ostream&,const Vector2&);
158 
159  double operator[] (int i) const
160  {
161  if((i < 0)||(i > 1))
162  throw std::runtime_error("Out of bounds in Vector2::operator[]") ;
163 
164  return _xyz[i];
165  }
166 
167  double& operator[] (int i)
168  {
169  if((i < 0)||(i > 1))
170  throw std::runtime_error("Out of bounds in Vector2::operator[]") ;
171 
172  return _xyz[i];
173  }
174 
175  private:
176  double _xyz[2];
177 
178  }; // interface of Vector2
179 }
180 
181 #endif // _VECTOR2_H
vrender::Vector2::squareNorm
double squareNorm() const
Square norm (self dot product)
Definition: Vector2.cpp:117
vrender::Vector2::operator*=
Vector2 & operator*=(double f)
Definition: Vector2.h:134
vrender::Vector2::~Vector2
~Vector2()
Default destructor.
Definition: Vector2.cpp:68
vrender::Vector2::operator/=
Vector2 & operator/=(double f)
Definition: Vector2.h:135
vrender::Vector2::infNorm
double infNorm() const
Infinite norm.
Definition: Vector2.cpp:124
vrender::Vector2::operator-=
Vector2 & operator-=(const Vector2 &v)
Definition: Vector2.h:127
vrender::Vector2::operator[]
double operator[](int i) const
Definition: Vector2.h:179
vrender::Vector2
Definition: Vector2.h:75
vrender::Vector2::operator<<
friend std::ostream & operator<<(std::ostream &, const Vector2 &)
Out stream override: prints the 3 vector components.
Definition: Vector2.cpp:132
vrender::Vector2::operator-
friend Vector2 operator-(const Vector2 &)
vrender::Vector2::mini
static Vector2 mini(const Vector2 &, const Vector2 &)
Definition: Vector2.cpp:138
vrender::Vector2::Vector2
Vector2()
Default constructor.
Definition: Vector2.cpp:60
vrender::Vector2::operator*
double operator*(const Vector2 &u) const
Definition: Vector2.h:150
vrender::Vector2::operator^
double operator^(const Vector2 &v) const
Definition: Vector2.h:155
vrender::Vector2::_xyz
double _xyz[2]
The 3 vector components.
Definition: Vector2.h:196
vrender::Vector2::operator+
Vector2 operator+(const Vector2 &u) const
Definition: Vector2.h:141
vrender::Vector2::x
double x() const
Definition: Vector2.h:97
vrender::Vector2::setXY
void setXY(double x, double y)
Definition: Vector2.h:101
vrender::Vector2::setX
void setX(double r)
Definition: Vector2.h:99
vrender
Definition: AxisAlignedBox.h:48
vrender::Vector2::maxi
static Vector2 maxi(const Vector2 &, const Vector2 &)
Definition: Vector2.cpp:143
vrender::Vector2::setY
void setY(double r)
Definition: Vector2.h:100
vrender::Vector2::operator+=
Vector2 & operator+=(const Vector2 &v)
Definition: Vector2.h:120
vrender::Vector2::norm
double norm() const
Norm.
Definition: Vector2.cpp:110
vrender::Vector2::y
double y() const
Definition: Vector2.h:98
vrender::Vector2::inf
static const Vector2 inf
Definition: Vector2.h:81
vrender::Vector2::operator/
Vector2 operator/(double v)
Definition: Vector2.h:160
vrender::Vector2::operator=
Vector2 & operator=(const Vector2 &u)
Definition: Vector2.h:107
vrender::Vector2::operator==
friend bool operator==(const Vector2 &, const Vector2 &)
vrender::Vector2::operator!=
friend bool operator!=(const Vector2 &, const Vector2 &)

octovis
Author(s): Kai M. Wurm , Armin Hornung
autogenerated on Thu Apr 3 2025 02:40:44