QwtScaleArithmetic Class Reference

Arithmetic including a tolerance. More...

#include <qwt_scale_engine.h>

Static Public Member Functions
static double	ceilEps (double value, double intervalSize)
	Ceiling with epsilon tolerance.
static double	floorEps (double value, double intervalSize)
	Floor with epsilon tolerance.
static double	divideEps (double intervalSize, double numSteps)
	Divide with epsilon tolerance.
static double	divideInterval (double intervalSize, int numSteps, uint base)
	Divide interval.

Detailed Description

Arithmetic including a tolerance.

Member Function Documentation

ceilEps()

double QwtScaleArithmetic::ceilEps ( double  value, double  intervalSize  )

static

Ceiling with epsilon tolerance.

Ceil a value, relative to an interval.

Parameters

value	Value to be ceiled
intervalSize	Interval size

Returns

Rounded value

See also

floorEps()

divideEps()

double QwtScaleArithmetic::divideEps ( double  intervalSize, double  numSteps  )

static

Divide with epsilon tolerance.

Divide an interval into steps.

Formula:

Parameters

intervalSize	Interval size
numSteps	Number of steps

Returns

Step size

divideInterval()

double QwtScaleArithmetic::divideInterval ( double  intervalSize, int  numSteps, uint  base  )

static

Divide interval.

Calculate a step size for a given interval.

Parameters

intervalSize	Interval size
numSteps	Number of steps
base	Base for the division (usually 10)

Returns

Calculated step size

floorEps()

double QwtScaleArithmetic::floorEps ( double  value, double  intervalSize  )

static

Floor with epsilon tolerance.

Floor a value, relative to an interval.

Parameters

value	Value to be floored
intervalSize	Interval size

Returns

Rounded value

See also

ceilEps()

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

• /home/runner/work/QWT/QWT/src/core/qwt_scale_engine.h
• /home/runner/work/QWT/QWT/src/core/qwt_scale_engine.cpp