qgsclassificationstandarddeviation.h

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/***************************************************************************
    qgsclassificationstandarddeviation.h
    ---------------------
    begin                : September 2019
    copyright            : (C) 2019 by Denis Rouzaud
    email                : [email protected]
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSCLASSIFICATIONSTANDARDDEVIATION_H
#define QGSCLASSIFICATIONSTANDARDDEVIATION_H
 
#include "qgis_core.h"
#include "qgsclassificationmethod.h"
 
class CORE_EXPORT QgsClassificationStandardDeviation : public QgsClassificationMethod
{
  public:
    QgsClassificationStandardDeviation();
 
    QString name() const override;
    QString id() const override;
    std::unique_ptr< QgsClassificationMethod > clone() const override;
    QIcon icon() const override;
    QString labelForRange( double lowerValue, double upperValue, ClassPosition position ) const override;
    void writeXml( QDomElement &element, const QgsReadWriteContext &context ) const override;
    void readXml( const QDomElement &element, const QgsReadWriteContext &context ) override;
 
    static const QString METHOD_ID;
 
  private:
    QList<double> calculateBreaks( double &minimum, double &maximum,
                                   const QList<double> &values, int nclasses, QString &error ) override;
 
    QString valueToLabel( double value ) const override;
 
    double mStdDev = 1.0;
    double mEffectiveSymmetryPoint = 0.0;
};
 
#endif // QGSCLASSIFICATIONSTANDARDDEVIATION_H