QGIS API Documentation 3.27.0-Master (75dc696944)
qgsclassificationprettybreaks.h
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1/***************************************************************************
2 qgsclassificationprettybreaks.h
3 ---------------------
4 begin : September 2019
5 copyright : (C) 2019 by Denis Rouzaud
7 ***************************************************************************
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 ***************************************************************************/
15
16#ifndef QGSCLASSIFICATIONPRETTYBREAKS_H
17#define QGSCLASSIFICATIONPRETTYBREAKS_H
18
19#include "qgis_core.h"
21
29{
30 public:
32
33 QString name() const override;
34 QString id() const override;
35 QgsClassificationMethod *clone() const override;
36 QIcon icon() const override;
37
38 bool valuesRequired() const override {return false;}
39
40 private:
41 QList<double> calculateBreaks( double &minimum, double &maximum,
42 const QList<double> &values, int nclasses ) override;
43};
44
45#endif // QGSCLASSIFICATIONPRETTYBREAKS_H
QgsClassificationMethod is an abstract class for implementations of classification methods.
virtual QgsClassificationMethod * clone() const =0
Returns a clone of the method.
virtual QString id() const =0
The id of the method as saved in the project, must be unique in registry.
virtual QString name() const =0
The readable and translate name of the method.
virtual QIcon icon() const
The icon of the method.
QgsClassificationPrettyBreaks is an implementation of QgsClassificationMethod for pretty breaks.
bool valuesRequired() const override
Returns if the method requires values to calculate the classes If not, bounds are sufficient.