16#ifndef QGSCLASSIFICATIONPRETTYBREAKS_H 
   17#define QGSCLASSIFICATIONPRETTYBREAKS_H 
   32    QString 
name() 
const override;
 
   33    QString 
id() 
const override;
 
   34    std::unique_ptr< QgsClassificationMethod > 
clone() 
const override;
 
   35    QIcon 
icon() 
const override;
 
   40    QList<double> calculateBreaks( 
double &minimum, 
double &maximum,
 
   41                                   const QList<double> &values, 
int nclasses, QString &error ) 
override;
 
 
An abstract class for implementations of classification methods.
 
virtual QString id() const =0
The id of the method as saved in the project, must be unique in registry.
 
virtual std::unique_ptr< QgsClassificationMethod > clone() const =0
Returns a clone of the method.
 
virtual QString name() const =0
The readable and translate name of the method.
 
virtual QIcon icon() const
The icon of the method.
 
A classification method which applies pretty breaks to data.
 
bool valuesRequired() const override
Returns if the method requires values to calculate the classes If not, bounds are sufficient.