line_math.h
1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2013 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 **
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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.
20 **
21 ** Note: Some of the libraries ClanLib may link to may have additional
22 ** requirements or restrictions.
23 **
24 ** File Author(s):
25 **
26 ** Harry Storbacka
27 ** Magnus Norddahl
28 ** (if your name is missing here, please add it)
29 */
30 
31 
32 #pragma once
33 
34 #include "../api_core.h"
35 #include "point.h"
36 
37 namespace clan
38 {
41 
45 class CL_API_CORE LineMath
46 {
47 public:
48 // Operations:
49 
57  static float point_right_of_line( float x, float y, float *line );
58 
69  static float point_right_of_line( float x, float y, float line_x1, float line_y1, float line_x2, float line_y2 );
70 
78  static float point_right_of_line( const Pointf &A, const Pointf &B, const Pointf &P );
79 
87  static Pointf midpoint( const Pointf &A, const Pointf &B );
88 
94  static Pointf closest_point( const Pointf &P, const Pointf &A, const Pointf &B );
95 
101  static float closest_point_relative( const Pointf &P, const Pointf &A, const Pointf &B );
102 };
103 
104 }
105 
2D (x,y) point structure - Float
Definition: point.h:73
Math operations on 2D lines.
Definition: line_math.h:45