16#ifndef QGSCLASSIFICATIONFIXEDINTERVAL_H 
   17#define QGSCLASSIFICATIONFIXEDINTERVAL_H 
   33    std::unique_ptr< QgsClassificationMethod > 
clone() 
const override;
 
   34    QString 
name() 
const override;
 
   35    QString 
id() 
const override;
 
   36    QIcon 
icon() 
const override;
 
   40    QList<double> calculateBreaks( 
double &minimum, 
double &maximum, 
const QList<double> &values, 
int nclasses, QString &error ) 
override;
 
 
Implementation of a fixed interval classification.
 
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 bool valuesRequired() const
Returns if the method requires values to calculate the classes If not, bounds are sufficient.
 
virtual QString name() const =0
The readable and translate name of the method.
 
virtual QIcon icon() const
The icon of the method.