| Qwt User's Guide
    5.2.3
    | 
#include <qwt_scale_engine.h>

| 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 | 
|  Public Member Functions inherited from QwtScaleEngine | |
| QwtScaleEngine () | |
| virtual | ~QwtScaleEngine () | 
| int | attributes () const | 
| double | lowerMargin () const | 
| double | reference () const | 
| void | setAttribute (Attribute, bool on=true) | 
| void | setAttributes (int) | 
| void | setMargins (double lower, double upper) | 
| void | setReference (double reference) | 
| bool | testAttribute (Attribute) const | 
| double | upperMargin () const | 
| Protected Member Functions | |
| QwtDoubleInterval | align (const QwtDoubleInterval &, double stepSize) const | 
|  Protected Member Functions inherited from QwtScaleEngine | |
| QwtDoubleInterval | buildInterval (double v) const | 
| bool | contains (const QwtDoubleInterval &, double val) const | 
| double | divideInterval (double interval, int numSteps) const | 
| QwtValueList | strip (const QwtValueList &, const QwtDoubleInterval &) const | 
| Additional Inherited Members | |
|  Public Types inherited from QwtScaleEngine | |
| enum | Attribute { NoAttribute = 0, IncludeReference = 1, Symmetric = 2, Floating = 4, Inverted = 8 } | 
A scale engine for linear scales.
The step size will fit into the pattern  , where n is an integer.
, where n is an integer. 
| 
 | protected | 
Align an interval to a step size.
The limits of an interval are aligned that both are integer multiples of the step size.
| interval | Interval | 
| stepSize | Step size | 
| 
 | virtual | 
Align and divide an interval
| maxNumSteps | Max. number of steps | 
| x1 | First limit of the interval (In/Out) | 
| x2 | Second limit of the interval (In/Out) | 
| stepSize | Step size (Out) | 
Implements QwtScaleEngine.
| 
 | virtual | 
Calculate a scale division.
| x1 | First interval limit | 
| 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. | 
Implements QwtScaleEngine.
| 
 | virtual | 
Return a transformation, for linear scales
Implements QwtScaleEngine.
 1.8.1
 1.8.1