table of contents
| QwtLinearScaleEngine(3) | Qwt User's Guide | QwtLinearScaleEngine(3) |
NAME¶
QwtLinearScaleEngine -
SYNOPSIS¶
#include <qwt_scale_engine.h>
Inherits QwtScaleEngine.
Public Member Functions¶
virtual void autoScale (int maxSteps, double &x1,
double &x2, double &stepSize) const
virtual QwtScaleDiv divideScale (double x1, double x2, int
numMajorSteps, int numMinorSteps, double stepSize=0.0) const
virtual QwtScaleTransformation * transformation () const
Protected Member Functions¶
QwtDoubleInterval align (const
QwtDoubleInterval &, double stepSize) const
Additional Inherited Members¶
Detailed Description¶
A scale engine for linear scales.
The step size will fit into the pattern $re n is an integer.
Member Function Documentation¶
QwtDoubleInterval QwtLinearScaleEngine::align (const QwtDoubleInterval &interval, doublestepSize) const [protected]¶
Align an interval to a step size. The limits of an interval are aligned that both are integer multiples of the step size.
Parameters:
stepSize Step size
Returns:
void QwtLinearScaleEngine::autoScale (intmaxNumSteps, double &x1, double &x2, double &stepSize) const [virtual]¶
Align and divide an interval
Parameters:
x1 First limit of the interval (In/Out)
x2 Second limit of the interval (In/Out)
stepSize Step size (Out)
See also:
Implements QwtScaleEngine.
QwtScaleDiv QwtLinearScaleEngine::divideScale (doublex1, doublex2, intmaxMajSteps, intmaxMinSteps, doublestepSize = 0.0) const [virtual]¶
Calculate a scale division. Parameters:
x2 Second interval limit
maxMajSteps Maximum for the number of major steps
maxMinSteps Maximum number of minor steps
stepSize Step size. If stepSize == 0, the scaleEngine calculates one.
See also:
Implements QwtScaleEngine.
QwtScaleTransformation * QwtLinearScaleEngine::transformation () const [virtual]¶
Return a transformation, for linear scales
Implements QwtScaleEngine.
Author¶
Generated automatically by Doxygen for Qwt User's Guide from the source code.
| Tue Nov 20 2012 | Version 5.2.3 |