ClanLib  2.3.7
line_math.h
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1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2011 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.
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 
33 
34 #pragma once
35 
36 #include "../api_core.h"
37 #include "point.h"
38 
45 {
46 public:
47 // Operations:
48 
56  static float point_right_of_line( float x, float y, float *line );
57 
68  static float point_right_of_line( float x, float y, float line_x1, float line_y1, float line_x2, float line_y2 );
69 
77  static float point_right_of_line( const CL_Pointf &A, const CL_Pointf &B, const CL_Pointf &P );
78 
86  static CL_Pointf midpoint( const CL_Pointf &A, const CL_Pointf &B );
87 
93  static CL_Pointf closest_point( const CL_Pointf &P, const CL_Pointf &A, const CL_Pointf &B );
94 
100  static float closest_point_relative( const CL_Pointf &P, const CL_Pointf &A, const CL_Pointf &B );
101 };
102