line.h
1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2016 The ClanLib Team
4 **
5 ** This software is provided 'as-is', without any express or implied
6 ** warranty. In no event will the authors be held liable for any damages
7 ** arising from the use of this software.
8 **
9 ** Permission is granted to anyone to use this software for any purpose,
10 ** including commercial applications, and to alter it and redistribute it
11 ** freely, subject to the following restrictions:
12 **
13 ** 1. The origin of this software must not be misrepresented; you must not
14 ** claim that you wrote the original software. If you use this software
15 ** in a product, an acknowledgment in the product documentation would be
16 ** appreciated but is not required.
17 ** 2. Altered source versions must be plainly marked as such, and must not be
18 ** misrepresented as being the original software.
19 ** 3. This notice may not be removed or altered from any source distribution.
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21 ** Note: Some of the libraries ClanLib may link to may have additional
22 ** requirements or restrictions.
23 **
24 ** File Author(s):
25 **
26 ** Mark Page
27 */
28 
29 #pragma once
30 
31 namespace clan
32 {
35 
36  template<typename Type>
37  class Line2x;
38 
39  template<typename Type>
40  class Line3x;
41 
42  template<typename Type>
43  class Rectx;
44 
45  template<typename Type>
46  class Vec2;
47 
48  class Angle;
49 
53  template<typename Type>
54  class Line3x
55  {
56  public:
59 
60  Line3x() : p(), q() {}
61  Line3x(const Line3x<Type> &copy) : p(copy.p), q(copy.q) {}
62  Line3x(const Vec3<Type> &point_p, const Vec3<Type> &point_q) : p(point_p), q(point_q) {}
63 
70  Vec3<Type> get_intersection(const Line3x<Type> &second, bool &intersect, Type range = (Type) 0.5) const;
71 
73  Line3x<Type> &operator = (const Line3x<Type>& copy) { p = copy.p; q = copy.q; return *this; }
74 
76  bool operator == (const Line3x<Type>& line) const { return ((p == line.p) && (q == line.q)); }
77 
79  bool operator != (const Line3x<Type>& line) const { return ((p != line.p) || (q != line.q)); }
80  };
81 
85  template<typename Type>
86  class Line2x
87  {
88  public:
91 
92  // \brief Another point on the line
94 
95  Line2x() : p(), q() { }
96  Line2x(const Line2x<Type> &copy) : p(copy.p), q(copy.q) {}
97  Line2x(const Vec2<Type> &point_p, const Vec2<Type> &point_q) : p(point_p), q(point_q) {}
98  Line2x(const Vec2<Type> &point_p, Type gradient) : p(point_p), q(static_cast<Type> (1), gradient) {}
99 
105  Vec2<Type> get_intersection(const Line2x<Type> &second, bool &intersect) const;
106 
111  Type point_right_of_line(Vec2<Type> point) const { return (q.x - p.x) * (point.y - p.y) - (point.x - p.x) * (q.y - p.y); }
112 
114  Line2x<Type> &operator = (const Line2x<Type>& copy) { p = copy.p; q = copy.q; return *this; }
115 
117  bool operator == (const Line2x<Type>& line) const { return ((p == line.p) && (q == line.q)); }
118 
120  bool operator != (const Line2x<Type>& line) const { return ((p != line.p) || (q != line.q)); }
121  };
122 
124  class Line2 : public Line2x<int>
125  {
126  public:
127  Line2() : Line2x<int>() { }
128  Line2(const Line2x<int> &copy) : Line2x<int>(copy) { }
129  Line2(const Vec2<int> &point_p, const Vec2<int> &point_q) : Line2x<int>(point_p, point_q) { }
130  Line2(const Vec2<int> &point_p, int gradient) : Line2x<int>(point_p, gradient) { }
131  };
132 
134  class Line2f : public Line2x<float>
135  {
136  public:
137  Line2f() : Line2x<float>() { }
138  Line2f(const Line2x<float> &copy) : Line2x<float>(copy) { }
139  Line2f(const Vec2<float> &point_p, const Vec2<float> &point_q) : Line2x<float>(point_p, point_q) { }
140  Line2f(const Vec2<float> &point_p, float gradient) : Line2x<float>(point_p, gradient) { }
141  };
142 
144  class Line2d : public Line2x<double>
145  {
146  public:
147  Line2d() : Line2x<double>() { }
148  Line2d(const Line2x<double> &copy) : Line2x<double>(copy) { }
149  Line2d(const Vec2<double> &point_p, const Vec2<double> &point_q) : Line2x<double>(point_p, point_q) { }
150  Line2d(const Vec2<double> &point_p, double gradient) : Line2x<double>(point_p, gradient) { }
151  };
152 
154  class Line3 : public Line3x<int>
155  {
156  public:
157  Line3() : Line3x<int>() { }
158  Line3(const Line3x<int> &copy) : Line3x<int>(copy) { }
159  Line3(const Vec3<int> &point_p, const Vec3<int> &point_q) : Line3x<int>(point_p, point_q) { }
160  };
161 
163  class Line3f : public Line3x<float>
164  {
165  public:
166  Line3f() : Line3x<float>() { }
167  Line3f(const Line3x<float> &copy) : Line3x<float>(copy) { }
168  Line3f(const Vec3<float> &point_p, const Vec3<float> &point_q) : Line3x<float>(point_p, point_q) { }
169  };
170 
172  class Line3d : public Line3x<double>
173  {
174  public:
175  Line3d() : Line3x<double>() { }
176  Line3d(const Line3x<double> &copy) : Line3x<double>(copy) { }
177  Line3d(const Vec3<double> &podouble_p, const Vec3<double> &podouble_q) : Line3x<double>(podouble_p, podouble_q) { }
178  };
179 
181 }
Line2x< Type > & operator=(const Line2x< Type > &copy)
= operator.
Definition: line.h:114
Line2f(const Vec2< float > &point_p, const Vec2< float > &point_q)
Definition: line.h:139
3D line
Definition: line.h:40
bool operator!=(const Line3x< Type > &line) const
!= operator.
Definition: line.h:79
Definition: clanapp.h:35
Angle class.
Definition: angle.h:59
2D vector
Definition: line.h:46
bool operator!=(const Line2x< Type > &line) const
!= operator.
Definition: line.h:120
Line2d(const Line2x< double > &copy)
Definition: line.h:148
Line2(const Line2x< int > &copy)
Definition: line.h:128
Vec3< Type > p
Definition: line.h:57
Line2d()
Definition: line.h:147
Line2(const Vec2< int > &point_p, int gradient)
Definition: line.h:130
Line2d(const Vec2< double > &point_p, const Vec2< double > &point_q)
Definition: line.h:149
Vec2< Type > q
Definition: line.h:93
Line2x(const Line2x< Type > &copy)
Definition: line.h:96
3D line - Integer
Definition: line.h:154
Line2x(const Vec2< Type > &point_p, const Vec2< Type > &point_q)
Definition: line.h:97
Line2d(const Vec2< double > &point_p, double gradient)
Definition: line.h:150
Line3d()
Definition: line.h:175
Vec3< Type > q
Definition: line.h:58
2D line - Integer
Definition: line.h:124
Line3(const Vec3< int > &point_p, const Vec3< int > &point_q)
Definition: line.h:159
2D line - Float
Definition: line.h:134
Line2f(const Line2x< float > &copy)
Definition: line.h:138
Line2()
Definition: line.h:127
Line3x(const Line3x< Type > &copy)
Definition: line.h:61
Line2f()
Definition: line.h:137
Vec2< Type > get_intersection(const Line2x< Type > &second, bool &intersect) const
Return the intersection of this and other line.
Type y
Definition: vec2.h:81
3D line - Double
Definition: line.h:172
Line2x()
Definition: line.h:95
Type point_right_of_line(Vec2< Type > point) const
Return [<0, 0, >0] if the Point P is right, on or left of the line trough A,B.
Definition: line.h:111
Line2(const Vec2< int > &point_p, const Vec2< int > &point_q)
Definition: line.h:129
Line3x(const Vec3< Type > &point_p, const Vec3< Type > &point_q)
Definition: line.h:62
Line2f(const Vec2< float > &point_p, float gradient)
Definition: line.h:140
Line3f(const Vec3< float > &point_p, const Vec3< float > &point_q)
Definition: line.h:168
Line3(const Line3x< int > &copy)
Definition: line.h:158
Vec3< Type > get_intersection(const Line3x< Type > &second, bool &intersect, Type range=(Type) 0.5) const
Return the intersection of this and other line.
Vec2< Type > p
First point on the line.
Definition: line.h:90
Line3f(const Line3x< float > &copy)
Definition: line.h:167
2D line
Definition: line.h:37
2D (left,top,right,bottom) rectangle structure.
Definition: line.h:43
bool operator==(const Line3x< Type > &line) const
== operator.
Definition: line.h:76
Line3x< Type > & operator=(const Line3x< Type > &copy)
= operator.
Definition: line.h:73
Line2x(const Vec2< Type > &point_p, Type gradient)
Definition: line.h:98
Type x
Definition: vec2.h:80
Line3x()
Definition: line.h:60
3D vector
Definition: line_ray.h:46
Line3d(const Vec3< double > &podouble_p, const Vec3< double > &podouble_q)
Definition: line.h:177
Line3d(const Line3x< double > &copy)
Definition: line.h:176
Line3()
Definition: line.h:157
bool operator==(const Line2x< Type > &line) const
== operator.
Definition: line.h:117
Line3f()
Definition: line.h:166
3D line - Float
Definition: line.h:163
2D line - Double
Definition: line.h:144