QwtScaleArithmetic - Arithmetic including a tolerance.

NAME  SYNOPSIS  Static Public Member Functions  Detailed Description  Member Function Documentation  double QwtScaleArithmetic::ceilEps (double value, double intervalSize)[static]  double QwtScaleArithmetic::divideEps (double intervalSize, double numSteps)[static]  double QwtScaleArithmetic::divideInterval (double intervalSize, intnumSteps, uint base) [static]  double QwtScaleArithmetic::floorEps (double value, double intervalSize)[static]  Author 

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NAME

QwtScaleArithmetic − Arithmetic including a tolerance.

SYNOPSIS

#include <qwt_scale_engine.h>

Static Public Member Functions

static double ceilEps (double value, double intervalSize)
static double floorEps (double value, double intervalSize)
static double divideEps (double intervalSize, double numSteps)
Divide an interval into steps.
static double divideInterval (double intervalSize, int numSteps, uint base)

Detailed Description

Arithmetic including a tolerance.

Definition at line 22 of file qwt_scale_engine.h.

Member Function Documentation

double QwtScaleArithmetic::ceilEps (double value, double intervalSize)[static]

Ceil a value, relative to an interval

Parameters

value Value to be ceiled
intervalSize Interval size

Returns

Rounded value

See also

floorEps()

Definition at line 108 of file qwt_scale_engine.cpp.

double QwtScaleArithmetic::divideEps (double intervalSize, double numSteps)[static]

Divide an interval into steps. $stepSize = (intervalSize - intervalSize * 10eˆ{-6}) / numSteps$

Parameters

intervalSize Interval size
numSteps Number of steps

Returns

Step size

Definition at line 143 of file qwt_scale_engine.cpp.

double QwtScaleArithmetic::divideInterval (double intervalSize, intnumSteps, uint base) [static]

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

Definition at line 160 of file qwt_scale_engine.cpp.

double QwtScaleArithmetic::floorEps (double value, double intervalSize)[static]

Floor a value, relative to an interval

Parameters

value Value to be floored
intervalSize Interval size

Returns

Rounded value

See also

floorEps()

Definition at line 126 of file qwt_scale_engine.cpp.

Author

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