line_math.h

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/*
**  ClanLib SDK
**  Copyright (c) 1997-2009 The ClanLib Team
**
**  This software is provided 'as-is', without any express or implied
**  warranty.  In no event will the authors be held liable for any damages
**  arising from the use of this software.
**
**  Permission is granted to anyone to use this software for any purpose,
**  including commercial applications, and to alter it and redistribute it
**  freely, subject to the following restrictions:
**
**  1. The origin of this software must not be misrepresented; you must not
**     claim that you wrote the original software. If you use this software
**     in a product, an acknowledgment in the product documentation would be
**     appreciated but is not required.
**  2. Altered source versions must be plainly marked as such, and must not be
**     misrepresented as being the original software.
**  3. This notice may not be removed or altered from any source distribution.
**
**  Note: Some of the libraries ClanLib may link to may have additional
**  requirements or restrictions.
**
**  File Author(s):
**
**    Harry Storbacka
**    Magnus Norddahl
**    (if your name is missing here, please add it)
*/


#pragma once

#include "../api_core.h"
#include "point.h"

class CL_API_CORE CL_LineMath
{
public:
// Operations:

        static float point_right_of_line( float x, float y, float *line );

        static float point_right_of_line( float x, float y, float line_x1, float line_y1, float line_x2, float line_y2 );

        static float point_right_of_line( const CL_Pointf &A, const CL_Pointf &B, const CL_Pointf &P );

        static CL_Pointf midpoint( const CL_Pointf &A, const CL_Pointf &B );

        static CL_Pointf closest_point( const CL_Pointf &P, const CL_Pointf &A, const CL_Pointf &B );

        static float closest_point_relative( const CL_Pointf &P, const CL_Pointf &A, const CL_Pointf &B );
};

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