geometry.h File Reference

#include <limits.h>
#include <qmath.h>

Go to the source code of this file.

Macros
#define	COORDV   int
	the data type used to represent internal values
#define	COORDV_INFINITY   INT_MAX
	special value that marks infinity
#define	COORDV_EQ(a, b)   ( qAbs( a - b ) < 0.0001 )
	compares two values to see if they are equal
#define	COORDV_SQR(a)   qSqrt(a)
	computes square root of a COORDV
#define	COORDV_SIN(a)   qSin(a)
	computes sinus of a
#define	COORDV_COS(a)   qCos(a)
	computes cosinus of a
#define	COORDV_TAN(a)   qTan(a)
	computes tangent of a
#define	COORDV_ASIN(a)   qAsin(a) /*qFastSin(a)*/
	computes arc sinus of a
#define	COORDV_ACOS(a)   qAcos(a) /*qFastCos(a)*/
	computes arc cosinus of a
#define	COORDV_ATAN(a)   qAtan(a)
	computes arc tangent of a
#define	COORDV_ATAN2(x, y)   qAtan2(y, x)
	computes arc tangent of an angle knowing x and y
#define	COORDV_PI   3.141592653589793
	the value of PI
#define	COORDV_PI_DIV_2   1.5707963267948965
	the value of PI / 2
#define	COORDV_PI_DIV_4   0.78539816339744825
	the value of PI / 4
#define	COORDV_2_PI   6.283185307179586
	the value of 2 * PI

Detailed Description

Date

Apr 2012

Author

TNick