ClanLib  2.3.7
line.h
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1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2011 The ClanLib Team
4 **
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24 ** File Author(s):
25 **
26 ** Mark Page
27 */
28 
31 
32 #pragma once
33 
34 #include "../api_core.h"
35 
36 template<typename Type>
37 class CL_Line2x;
38 
39 template<typename Type>
40 class CL_Line3x;
41 
42 template<typename Type>
43 class CL_Rectx;
44 
45 template<typename Type>
46 class CL_Vec2;
47 
48 class CL_Angle;
49 
54 template<typename Type>
55 class CL_Line3x
56 {
57 public:
60 
61  CL_Line3x() { }
62  CL_Line3x(const CL_Line3x<Type> &copy) { p = copy.p; q = copy.q;}
63  CL_Line3x(const CL_Vec3<Type> &point_p, const CL_Vec3<Type> &point_q) { p = point_p; q = point_q; }
64 
67 public:
74  CL_Vec3<Type> get_intersection( const CL_Line3x<Type> &second, bool &intersect, Type range = (Type) 0.5 ) const;
75 
79 public:
81  CL_Line3x<Type> &operator = (const CL_Line3x<Type>& copy) { p = copy.p; q = copy.q; return *this; }
82 
84  bool operator == (const CL_Line3x<Type>& line) const {return ((p == line.p) && (q == line.q));}
85 
87  bool operator != (const CL_Line3x<Type>& line) const {return ((p != line.p) || (q != line.q));}
89 };
90 
95 template<typename Type>
96 class CL_Line2x
97 {
98 public:
101 
102  // \brief Another point on the line
104 
105  CL_Line2x() { }
106  CL_Line2x(const CL_Line2x<Type> &copy) { p = copy.p; q = copy.q;}
107  CL_Line2x(const CL_Vec2<Type> &point_p, const CL_Vec2<Type> &point_q) { p = point_p; q = point_q; }
108  CL_Line2x(const CL_Vec2<Type> &point_p, Type gradient) { p = point_p; q.x = (Type) 1; q.y = gradient; }
109 
112 public:
118  CL_Vec2<Type> get_intersection( const CL_Line2x<Type> &second, bool &intersect ) const;
119 
124  Type point_right_of_line( CL_Vec2<Type> point ) const {return (q.x - p.x) * (point.y - p.y) - (point.x - p.x) * (q.y - p.y);}
125 
129 
130 public:
131 
135 public:
137  CL_Line2x<Type> &operator = (const CL_Line2x<Type>& copy) { p = copy.p; q = copy.q; return *this; }
138 
140  bool operator == (const CL_Line2x<Type>& line) const {return ((p == line.p) && (q == line.q));}
141 
143  bool operator != (const CL_Line2x<Type>& line) const {return ((p != line.p) || (q != line.q));}
145 };
146 
150 class CL_Line2 : public CL_Line2x<int>
151 {
152 public:
153  CL_Line2() : CL_Line2x<int>() { }
154  CL_Line2(const CL_Line2x<int> &copy) : CL_Line2x<int>(copy) { }
155  CL_Line2(const CL_Vec2<int> &point_p, const CL_Vec2<int> &point_q) : CL_Line2x<int>(point_p, point_q) { }
156  CL_Line2(const CL_Vec2<int> &point_p, int gradient) : CL_Line2x<int>(point_p, gradient) { }
157 };
158 
162 class CL_Line2f : public CL_Line2x<float>
163 {
164 public:
165  CL_Line2f() : CL_Line2x<float>() { }
166  CL_Line2f(const CL_Line2x<float> &copy) : CL_Line2x<float>(copy) { }
167  CL_Line2f(const CL_Vec2<float> &point_p, const CL_Vec2<float> &point_q) : CL_Line2x<float>(point_p, point_q) { }
168  CL_Line2f(const CL_Vec2<float> &point_p, float gradient) : CL_Line2x<float>(point_p, gradient) { }
169 };
170 
174 class CL_Line2d : public CL_Line2x<double>
175 {
176 public:
177  CL_Line2d() : CL_Line2x<double>() { }
178  CL_Line2d(const CL_Line2x<double> &copy) : CL_Line2x<double>(copy) { }
179  CL_Line2d(const CL_Vec2<double> &point_p, const CL_Vec2<double> &point_q) : CL_Line2x<double>(point_p, point_q) { }
180  CL_Line2d(const CL_Vec2<double> &point_p, double gradient) : CL_Line2x<double>(point_p, gradient) { }
181 };
182 
186 class CL_Line3 : public CL_Line3x<int>
187 {
188 public:
189  CL_Line3() : CL_Line3x<int>() { }
190  CL_Line3(const CL_Line3x<int> &copy) : CL_Line3x<int>(copy) { }
191  CL_Line3(const CL_Vec3<int> &point_p, const CL_Vec3<int> &point_q) : CL_Line3x<int>(point_p, point_q) { }
192 };
193 
197 class CL_Line3f : public CL_Line3x<float>
198 {
199 public:
200  CL_Line3f() : CL_Line3x<float>() { }
201  CL_Line3f(const CL_Line3x<float> &copy) : CL_Line3x<float>(copy) { }
202  CL_Line3f(const CL_Vec3<float> &point_p, const CL_Vec3<float> &point_q) : CL_Line3x<float>(point_p, point_q) { }
203 };
204 
208 class CL_Line3d : public CL_Line3x<double>
209 {
210 public:
211  CL_Line3d() : CL_Line3x<double>() { }
212  CL_Line3d(const CL_Line3x<double> &copy) : CL_Line3x<double>(copy) { }
213  CL_Line3d(const CL_Vec3<double> &podouble_p, const CL_Vec3<double> &podouble_q) : CL_Line3x<double>(podouble_p, podouble_q) { }
214 };
215