QGIS API Documentation  3.16.0-Hannover (43b64b13f3)
qgsclassificationprettybreaks.h
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1 /***************************************************************************
2  qgsclassificationprettybreaks.h
3  ---------------------
4  begin : September 2019
5  copyright : (C) 2019 by Denis Rouzaud
6  email : [email protected]
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
QgsClassificationPrettyBreaks::valuesRequired
bool valuesRequired() const override
Returns if the method requires values to calculate the classes If not, bounds are sufficient.
Definition: qgsclassificationprettybreaks.h:38
QgsClassificationMethod
QgsClassificationMethod is an abstract class for implementations of classification methods.
Definition: qgsclassificationmethod.h:88
QgsClassificationPrettyBreaks
QgsClassificationPrettryBreaks is an implementation of QgsClassificationMethod for pretty breaks.
Definition: qgsclassificationprettybreaks.h:29
QgsClassificationMethod::icon
virtual QIcon icon() const
The icon of the method.
Definition: qgsclassificationmethod.h:149
QgsClassificationMethod::clone
virtual QgsClassificationMethod * clone() const =0
Returns a clone of the method.
QgsClassificationMethod::id
virtual QString id() const =0
The id of the method as saved in the project, must be unique in registry.
qgsclassificationmethod.h
QgsClassificationMethod::name
virtual QString name() const =0
The readable and translate name of the method.