openscenegraph
Vec2s
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1/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
2 *
3 * This library is open source and may be redistributed and/or modified under
4 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
5 * (at your option) any later version. The full license is in LICENSE file
6 * included with this distribution, and on the openscenegraph.org website.
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * OpenSceneGraph Public License for more details.
12*/
13
14#ifndef OSG_VEC2S
15#define OSG_VEC2S 1
16
17namespace osg {
18
19class Vec2s
20{
21 public:
22
23 /** Data type of vector components.*/
24 typedef short value_type;
25
26 /** Number of vector components. */
27 enum { num_components = 2 };
28
29 value_type _v[2];
30
31 /** Constructor that sets all components of the vector to zero */
32 Vec2s() { _v[0]=0; _v[1]=0; }
33
34 Vec2s(value_type x, value_type y) { _v[0] = x; _v[1] = y; }
35
36 inline bool operator == (const Vec2s& v) const { return _v[0]==v._v[0] && _v[1]==v._v[1]; }
37 inline bool operator != (const Vec2s& v) const { return _v[0]!=v._v[0] || _v[1]!=v._v[1]; }
38 inline bool operator < (const Vec2s& v) const
39 {
40 if (_v[0]<v._v[0]) return true;
41 else if (_v[0]>v._v[0]) return false;
42 else return (_v[1]<v._v[1]);
43 }
44
45 inline value_type* ptr() { return _v; }
46 inline const value_type* ptr() const { return _v; }
47
48 inline void set( value_type x, value_type y)
49 {
50 _v[0]=x; _v[1]=y;
51 }
52
53 inline void set( const Vec2s& rhs)
54 {
55 _v[0]=rhs._v[0]; _v[1]=rhs._v[1];
56 }
57
58 inline value_type& operator [] (int i) { return _v[i]; }
59 inline value_type operator [] (int i) const { return _v[i]; }
60
61 inline value_type& x() { return _v[0]; }
62 inline value_type& y() { return _v[1]; }
63
64 inline value_type x() const { return _v[0]; }
65 inline value_type y() const { return _v[1]; }
66
67 inline value_type& r() { return _v[0]; }
68 inline value_type& g() { return _v[1]; }
69
70 inline value_type r() const { return _v[0]; }
71 inline value_type g() const { return _v[1]; }
72
73 inline Vec2s operator * (value_type rhs) const
74 {
75 return Vec2s(_v[0]*rhs, _v[1]*rhs);
76 }
77
78 inline Vec2s& operator *= (value_type rhs)
79 {
80 _v[0]*=rhs;
81 _v[1]*=rhs;
82 return *this;
83 }
84
85 inline Vec2s operator / (value_type rhs) const
86 {
87 return Vec2s(_v[0]/rhs, _v[1]/rhs);
88 }
89
90 inline Vec2s& operator /= (value_type rhs)
91 {
92 _v[0]/=rhs;
93 _v[1]/=rhs;
94 return *this;
95 }
96
97 inline Vec2s operator * (const Vec2s& rhs) const
98 {
99 return Vec2s(_v[0]*rhs._v[0], _v[1]*rhs._v[1]);
100 }
101
102 inline Vec2s operator + (const Vec2s& rhs) const
103 {
104 return Vec2s(_v[0]+rhs._v[0], _v[1]+rhs._v[1]);
105 }
106
107 inline Vec2s& operator += (const Vec2s& rhs)
108 {
109 _v[0] += rhs._v[0];
110 _v[1] += rhs._v[1];
111 return *this;
112 }
113
114 inline Vec2s operator - (const Vec2s& rhs) const
115 {
116 return Vec2s(_v[0]-rhs._v[0], _v[1]-rhs._v[1]);
117 }
118
119 inline Vec2s& operator -= (const Vec2s& rhs)
120 {
121 _v[0]-=rhs._v[0];
122 _v[1]-=rhs._v[1];
123 return *this;
124 }
125
126
127 inline Vec2s operator - () const
128 {
129 return Vec2s (-_v[0], -_v[1]);
130 }
131
132
133}; // end of class Vec2s
134
135
136/** multiply by vector components. */
137inline Vec2s componentMultiply(const Vec2s& lhs, const Vec2s& rhs)
138{
139 return Vec2s(lhs[0]*rhs[0], lhs[1]*rhs[1]);
140}
141
142/** divide rhs components by rhs vector components. */
143inline Vec2s componentDivide(const Vec2s& lhs, const Vec2s& rhs)
144{
145 return Vec2s(lhs[0]/rhs[0], lhs[1]/rhs[1]);
146}
147
148} // end of namespace osg
149#endif