scgenmath.h

来自「Source code for EMFexplorer 1.0」· C头文件 代码 · 共 43 行

/*
*	This file is part of the EMFexplorer projet.
*	Copyright (C) 2004 Smith Charles.
*
*	This library is free software; you can redistribute it and/or
*	modify it under the terms of the GNU Lesser General Public
*	License as published by the Free Software Foundation; either
*	version 2.1 of the License, or (at your option) any later version.
*
*   This library is distributed in the hope that it will be useful,
*   but WITHOUT ANY WARRANTY; without even the implied warranty of
*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
*   Lesser General Public License for more details.
*
*   You should have received a copy of the GNU Lesser General Public
*   License along with this library; if not, write to the Free Software
*   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
*
*	Extension: for commercial use, apply the Equity Public License, which
*	adds to the normal terms of the GLPL a condition of donation to the author.
*   If you are interested in support for this source code,
*   contact Smith Charles <[e-mail]> for more information.
*/
#ifndef _SCGENMATH_H_
#define _SCGENMATH_H_

#include <math.h>

//	#define SC_PI 3.141592653589793f
#define SC_PI	3.14159265358979323846f

// Neper
#define SC_E	2.7182818284590452354f

// Convert degrees to radians for math functions.
#define SC_RAD(x) ((x) * SC_PI / 180.0f)

// Convert radians to degrees for math functions.
#define SC_DEGREES(x) ((x) * 180.0f / SC_PI)

#endif //_SCGENMATH_H_
//  ------------------------------------------------------------