QwtScaleArithmetic - Man Page
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.
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()
double QwtScaleArithmetic::divideEps (double intervalSize, double numSteps) [static]
Divide an interval into steps. $stepSize = (intervalSize - intervalSize * 10e^{-6}) / numSteps$
- Parameters
intervalSize Interval size
numSteps Number of steps- Returns
Step size
double QwtScaleArithmetic::divideInterval (double intervalSize, int numSteps, 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
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()
Author
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