/********************************************************************** *< FILE: trig.h DESCRIPTION: Useful trigonometry macros CREATED BY: Rolf Berteig HISTORY: created 19 November 1994 *> Copyright (c) 1994, All Rights Reserved. **********************************************************************/ #ifndef __TRIG__ #define __TRIG__ #define PI ((float)3.1415926535) #define TWOPI ((float)6.283185307) #define HALFPI ((float)1.570796326794895) #define DEG_TO_RAD (PI/(float)180.0) #define RAD_TO_DEG ((float)180.0/PI) #define DegToRad(deg) (((float)deg)*DEG_TO_RAD) #define RadToDeg(rad) (((float)rad)*RAD_TO_DEG) #endif // __TRIG_H__