10 #ifndef QWT_SCALE_ENGINE_H    11 #define QWT_SCALE_ENGINE_H    13 #include "qwt_global.h"    14 #include "qwt_scale_div.h"    15 #include "qwt_interval.h"    25     static double ceilEps( 
double value, 
double intervalSize );
    26     static double floorEps( 
double value, 
double intervalSize );
    28     static double divideEps( 
double interval, 
double steps );
    30     static double divideInterval( 
double interval, 
    31         int numSteps, uint base );
    60         IncludeReference = 0x01,
    84     void setBase( uint base );
    87     void setAttribute( 
Attribute, 
bool on = 
true );
    90     void setAttributes( Attributes );
    91     Attributes attributes() 
const;
    93     void setReference( 
double reference );
    94     double reference() 
const;
    96     void setMargins( 
double lower, 
double upper );
    97     double lowerMargin() 
const;
    98     double upperMargin() 
const;
   108     virtual void autoScale( 
int maxNumSteps,
   109         double &x1, 
double &x2, 
double &stepSize ) 
const = 0;
   123     virtual QwtScaleDiv divideScale( 
double x1, 
double x2,
   124         int maxMajorSteps, 
int maxMinorSteps,
   125         double stepSize = 0.0 ) 
const = 0;
   131     bool contains( 
const QwtInterval &, 
double val ) 
const;
   132     QList<double> strip( 
const QList<double>&, 
const QwtInterval & ) 
const;
   134     double divideInterval( 
double interval, 
int numSteps ) 
const;
   157         double &x1, 
double &x2, 
double &stepSize ) 
const;
   160         int numMajorSteps, 
int numMinorSteps,
   161                                      double stepSize = 0.0 ) 
const;
   168         const QwtInterval &, 
double stepSize, 
int maxMinSteps,
   171     QList<double> buildMajorTicks(
   172         const QwtInterval &interval, 
double stepSize ) 
const;
   174     void buildMinorTicks( 
const QList<double>& majorTicks,
   175         int maxMinorSteps, 
double stepSize,
   176         QList<double> &minorTicks, QList<double> &mediumTicks ) 
const;
   197         double &x1, 
double &x2, 
double &stepSize ) 
const;
   200         int numMajorSteps, 
int numMinorSteps,
   201         double stepSize = 0.0 ) 
const;
   207         const QwtInterval &, 
double stepSize, 
int maxMinSteps,
   210     QList<double> buildMajorTicks(
   211         const QwtInterval &interval, 
double stepSize ) 
const;
   213     void buildMinorTicks( 
const QList<double>& majorTicks,
   214         int maxMinorSteps, 
double stepSize,
   215         QList<double> &minorTicks, QList<double> &mediumTicks ) 
const;
 
Base class for scale engines. 
Definition: qwt_scale_engine.h:45
virtual QwtScaleDiv divideScale(double x1, double x2, int maxMajorSteps, int maxMinorSteps, double stepSize=0.0) const  =0
Calculate a scale division. 
QFlags< Attribute > Attributes
Layout attributes. 
Definition: qwt_scale_engine.h:79
A class representing a scale division. 
Definition: qwt_scale_div.h:36
A scale engine for linear scales. 
Definition: qwt_scale_engine.h:150
virtual void autoScale(int maxNumSteps, double &x1, double &x2, double &stepSize) const  =0
Number of valid tick types. 
Definition: qwt_scale_div.h:55
Arithmetic including a tolerance. 
Definition: qwt_scale_engine.h:22
A scale engine for logarithmic scales. 
Definition: qwt_scale_engine.h:190
A class representing an interval. 
Definition: qwt_interval.h:26
Attribute
Definition: qwt_scale_engine.h:54