swift::misc::math::CMathUtils Class Reference

Math utils. More...

Public Member Functions
	CMathUtils ()=delete
	No objects, just static.

Static Public Member Functions
static double	round (double value, int digits)
	Utility round method.
static double	roundEpsilon (double value, double epsilon)
	Round by given epsilon.
static double	trunc (double value, double epsilon=1e-10)
	Nearest integer not greater in magnitude than value, correcting for epsilon.
static double	fract (double value)
	Fractional part of value.
static double	deg2rad (double degree)
	Degrees to radians.
static double	rad2deg (double radians)
	Radians to degrees.
static double	normalizeDegrees180 (double degrees)
	Normalize: -180< degrees ≤180.
static double	normalizeDegrees360 (double degrees)
	Normalize: 0≤ degrees <360.
static QRandomGenerator &	randomGenerator ()
	Thread-local random generator.
static int	randomInteger (int low, int high)
	Random number between low and high.
static double	randomDouble (double max=1)
	Random double 0-max.
static bool	randomBool ()
	Random boolean.
static int	roundToMultipleOf (int value, int divisor)
	Round numToRound to the nearest multiple of divisor.
static QString	fractionalPartAsString (double value, int width=-1)
	Fractional part as integer string, e.g. 3.12 -> 12 / 3.012 -> 012. More...
static double	sum (const QList< double > &values)
	Calculate the sum.
static double	mean (const QList< double > &values)
	Calculate the mean.
static double	standardDeviation (const QList< double > &values)
	Calculate the standard deviation.
static QPair< double, double >	standardDeviationAndMean (const QList< double > &values)
	Standard deviation (first) and mean (second)
static bool	epsilonEqual (float v1, float v2, float epsilon=1E-06f)
	Epsilon safe equal.
static bool	epsilonEqual (double v1, double v2, double epsilon=1E-06)
	Epsilon safe equal.
static bool	epsilonEqualLimits (double v1, double v2)
	Epsilon safe equal.
static bool	epsilonZero (double v, double epsilon)
	Epsilon safe zero.
static bool	epsilonZero (double v)
	Epsilon safe zero.
static bool	epsilonZeroLimits (double v)
	Epsilon safe zero.

Detailed Description

Math utils.

Definition at line 22 of file mathutils.h.

Member Function Documentation

fractionalPartAsString()

QString swift::misc::math::CMathUtils::fractionalPartAsString ( double  value, int  width = -1  )

static

Fractional part as integer string, e.g. 3.12 -> 12 / 3.012 -> 012.

Remarks

because of leading 0 returned as string

Definition at line 99 of file mathutils.cpp.

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The documentation for this class was generated from the following files:

• src/misc/math/mathutils.h
• src/misc/math/mathutils.cpp