QGIS API Documentation  3.17.0-Master (3b262f2a79)
qgsclassificationcustom.h
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1 /***************************************************************************
2  qgsclassificationcustom.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 QGSCLASSIFICATIONCUSTOM_H
17 #define QGSCLASSIFICATIONCUSTOM_H
18 
20 
21 
29 {
30  public:
32 
33  QgsClassificationMethod *clone() const override;
34  QString name() const override;
35  QString id() const override;
36 
37  bool valuesRequired() const override {return false;}
38 
39  static const QString METHOD_ID;
40 
41  private:
42  QList<double> calculateBreaks( double &minimum, double &maximum,
43  const QList<double> &values, int nclasses ) override;
44 };
45 
46 #endif // QGSCLASSIFICATIONCUSTOM_H
static const QString METHOD_ID
virtual QString id() const =0
The id of the method as saved in the project, must be unique in registry.
QgsClassificationCustom is a dummy implementation of QgsClassification which does not compute any bre...
virtual QgsClassificationMethod * clone() const =0
Returns a clone of the method.
QgsClassificationMethod is an abstract class for implementations of classification methods...
virtual QString name() const =0
The readable and translate name of the method.
bool valuesRequired() const override
Returns if the method requires values to calculate the classes If not, bounds are sufficient...