decMath.h File Reference

Class for mathematical calculations. More...

#include <math.h>
#include <stdlib.h>
#include "../../dragengine_export.h"
#include "decVector.h"
#include "decVector2.h"
#include "decVector4.h"
#include "decDVector.h"
#include "decDVector4.h"
#include "decQuaternion.h"
#include "decPoint.h"
#include "decPoint3.h"
#include "decColor.h"
#include "decMatrix.h"
#include "decDMatrix.h"
#include "decTexMatrix.h"
#include "decTexMatrix2.h"
#include "decColorMatrix.h"
#include "decColorMatrix3.h"
#include "decBoundary.h"

Namespaces
	decMath

Macros
#define	COLOR_THRESHOLD   1e-5f
#define	CURVE_THRESHOLD   1e-6f
#define	DEG2RAD   (PI / 180.0f)
	Degree to radians. More...
#define	DOUBLE_EPSILON   2.220446049250313e-16
#define	DOUBLE_SAFE_EPSILON   1e-15
#define	DVECTOR_THRESHOLD   1e-6
#define	FLOAT_EPSILON   1.1929093e-7f
	Floating point thresholds (epsilons). More...
#define	FLOAT_SAFE_EPSILON   1e-6f
#define	HALF_PI   (PI / 2.0f)
	Value of half pi. More...
#define	PI   3.14159265f
	Value of pi. More...
#define	QUATERNION_THRESHOLD   1e-5f
#define	RAD2DEG   (180.0f / PI)
	Radians to degree. More...
#define	TEXEL_THRESHOLD   1e-5f
#define	TWO_PI   (PI * 2.0f)
	Value of two pi. More...
#define	VECTOR_THRESHOLD   1e-6f

Functions
DE_DLL_EXPORT double	decMath::clamp (double x, double lower, double upper)
	Clamp value to range. More...
DE_DLL_EXPORT float	decMath::clamp (float x, float lower, float upper)
	Clamp value to range. More...
DE_DLL_EXPORT int	decMath::clamp (int x, int lower, int upper)
	Clamp value to range. More...
DE_DLL_EXPORT double	decMath::linearStep (double x, double lower, double upper)
	Linear map x to the range from 0 to 1. More...
DE_DLL_EXPORT double	decMath::linearStep (double x, double lower, double upper, double mapLower, double mapUpper)
	Linear map x from one range to another range. More...
DE_DLL_EXPORT float	decMath::linearStep (float x, float lower, float upper)
	Linear map x to the range from 0 to 1. More...
DE_DLL_EXPORT float	decMath::linearStep (float x, float lower, float upper, float mapLower, float mapUpper)
	Linear map x from one range to another range. More...
DE_DLL_EXPORT double	decMath::max (double a, double b)
	Larger of two values. More...
DE_DLL_EXPORT double	decMath::max (double a, double b, double c)
	Larger of three values. More...
DE_DLL_EXPORT double	decMath::max (double a, double b, double c, double d)
	Larger of four values. More...
DE_DLL_EXPORT float	decMath::max (float a, float b)
	Larger of two values. More...
DE_DLL_EXPORT float	decMath::max (float a, float b, float c)
	Larger of three values. More...
DE_DLL_EXPORT float	decMath::max (float a, float b, float c, float d)
	Larger of four values. More...
DE_DLL_EXPORT int	decMath::max (int a, int b)
	Larger of two values. More...
DE_DLL_EXPORT int	decMath::max (int a, int b, int c)
	Larger of three values. More...
DE_DLL_EXPORT int	decMath::max (int a, int b, int c, int d)
	Larger of four values. More...
DE_DLL_EXPORT double	decMath::min (double a, double b)
	Smaller of two values. More...
DE_DLL_EXPORT double	decMath::min (double a, double b, double c)
	Smaller of three values. More...
DE_DLL_EXPORT double	decMath::min (double a, double b, double c, double d)
	Smaller of four values. More...
DE_DLL_EXPORT float	decMath::min (float a, float b)
	Smaller of two values. More...
DE_DLL_EXPORT float	decMath::min (float a, float b, float c)
	Smaller of three values. More...
DE_DLL_EXPORT float	decMath::min (float a, float b, float c, float d)
	Smaller of four values. More...
DE_DLL_EXPORT int	decMath::min (int a, int b)
	Smaller of two values. More...
DE_DLL_EXPORT int	decMath::min (int a, int b, int c)
	Smaller of three values. More...
DE_DLL_EXPORT int	decMath::min (int a, int b, int c, int d)
	Smaller of four values. More...
DE_DLL_EXPORT double	decMath::mix (double a, double b, double blend)
	Blend between two values. More...
DE_DLL_EXPORT float	decMath::mix (float a, float b, float blend)
	Blend between two values. More...
DE_DLL_EXPORT double	decMath::normalize (double x, double lower, double upper)
	Normalize value. More...
DE_DLL_EXPORT double	decMath::normalize (double x, double upper)
	Normalize value. More...
DE_DLL_EXPORT float	decMath::normalize (float x, float lower, float upper)
	Normalize value. More...
DE_DLL_EXPORT float	decMath::normalize (float x, float upper)
	Normalize value. More...
DE_DLL_EXPORT int	decMath::normalize (int x, int lower, int upper)
	Normalize value. More...
DE_DLL_EXPORT float	decMath::random (float lower, float upper)
	Random value. More...
DE_DLL_EXPORT int	decMath::random (int lower, int upper)
	Random value. More...
DE_DLL_EXPORT double	decMath::smoothStep (double x, double lower, double upper)
	Smooth map x to the range from 0 to 1. More...
DE_DLL_EXPORT double	decMath::smoothStep (double x, double lower, double upper, double mapLower, double mapUpper)
	Smooth map x from one range to another range. More...
DE_DLL_EXPORT float	decMath::smoothStep (float x, float lower, float upper)
	Smooth map x to the range from 0 to 1. More...
DE_DLL_EXPORT float	decMath::smoothStep (float x, float lower, float upper, float mapLower, float mapUpper)
	Smooth map x from one range to another range. More...

Detailed Description

Class for mathematical calculations.

Macro Definition Documentation

COLOR_THRESHOLD

#define COLOR_THRESHOLD   1e-5f

CURVE_THRESHOLD

#define CURVE_THRESHOLD   1e-6f

DEG2RAD

#define DEG2RAD   (PI / 180.0f)

Degree to radians.

DOUBLE_EPSILON

#define DOUBLE_EPSILON   2.220446049250313e-16

DOUBLE_SAFE_EPSILON

#define DOUBLE_SAFE_EPSILON   1e-15

DVECTOR_THRESHOLD

#define DVECTOR_THRESHOLD   1e-6

FLOAT_EPSILON

#define FLOAT_EPSILON   1.1929093e-7f

Floating point thresholds (epsilons).

FLOAT_SAFE_EPSILON

#define FLOAT_SAFE_EPSILON   1e-6f

HALF_PI

#define HALF_PI   (PI / 2.0f)

Value of half pi.

PI

#define PI   3.14159265f

Value of pi.

QUATERNION_THRESHOLD

#define QUATERNION_THRESHOLD   1e-5f

RAD2DEG

#define RAD2DEG   (180.0f / PI)

Radians to degree.

TEXEL_THRESHOLD

#define TEXEL_THRESHOLD   1e-5f

TWO_PI

#define TWO_PI   (PI * 2.0f)

Value of two pi.

VECTOR_THRESHOLD

#define VECTOR_THRESHOLD   1e-6f