16#ifndef QGSCLASSIFICATIONLOGARITHMIC_H
17#define QGSCLASSIFICATIONLOGARITHMIC_H
45 QString
name()
const override;
46 QString
id()
const override;
47 QIcon
icon()
const override;
48 QString
labelForRange(
double lowerValue,
double upperValue, ClassPosition position )
const override;
52 QList<double> calculateBreaks(
double &minimum,
double &maximum,
const QList<double> &values,
int nclasses, QString &error )
override;
53 QString valueToLabel(
double value )
const override;
Implementation of a logarithmic scale method.
NegativeValueHandling
Handling of negative and 0 values in the method.
@ Discard
Negative values are discarded - this will require all values.
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 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.
virtual QString labelForRange(double lowerValue, double upperValue, ClassPosition position=Inner) const
Returns the label for a range.