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src
core
classification
qgsclassificationstandarddeviation.h
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/***************************************************************************
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qgsclassificationstandarddeviation.h
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---------------------
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begin : September 2019
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copyright : (C) 2019 by Denis Rouzaud
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email :
[email protected]
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSCLASSIFICATIONSTANDARDDEVIATION_H
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#define QGSCLASSIFICATIONSTANDARDDEVIATION_H
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#include "qgis_core.h"
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#include "
qgsclassificationmethod.h
"
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class
CORE_EXPORT
QgsClassificationStandardDeviation
:
public
QgsClassificationMethod
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{
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public
:
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QgsClassificationStandardDeviation
();
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QString
name
()
const override
;
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QString
id
()
const override
;
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QgsClassificationMethod
*
clone
()
const override
;
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QIcon
icon
()
const override
;
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QString
labelForRange
(
double
lowerValue,
double
upperValue,
ClassPosition
position )
const override
;
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void
writeXml
( QDomElement &element,
const
QgsReadWriteContext
&context )
const override
;
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void
readXml
(
const
QDomElement &element,
const
QgsReadWriteContext
&context )
override
;
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static
const
QString
METHOD_ID
;
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private
:
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QList<double> calculateBreaks(
double
&minimum,
double
&maximum,
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const
QList<double> &values,
int
nclasses, QString &error )
override
;
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QString valueToLabel(
double
value )
const override
;
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double
mStdDev = 1.0;
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double
mEffectiveSymmetryPoint = 0.0;
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};
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#endif
// QGSCLASSIFICATIONSTANDARDDEVIATION_H
QgsClassificationMethod
QgsClassificationMethod is an abstract class for implementations of classification methods.
Definition
qgsclassificationmethod.h:89
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::ClassPosition
ClassPosition
Defines the class position.
Definition
qgsclassificationmethod.h:125
QgsClassificationMethod::readXml
virtual void readXml(const QDomElement &element, const QgsReadWriteContext &context)
Reads extra information to apply it to the method.
Definition
qgsclassificationmethod.h:171
QgsClassificationMethod::writeXml
virtual void writeXml(QDomElement &element, const QgsReadWriteContext &context) const
Writes extra information about the method.
Definition
qgsclassificationmethod.h:169
QgsClassificationMethod::name
virtual QString name() const =0
The readable and translate name of the method.
QgsClassificationMethod::icon
virtual QIcon icon() const
The icon of the method.
Definition
qgsclassificationmethod.h:153
QgsClassificationMethod::labelForRange
virtual QString labelForRange(double lowerValue, double upperValue, ClassPosition position=Inner) const
Returns the label for a range.
Definition
qgsclassificationmethod.cpp:352
QgsClassificationStandardDeviation
QgsClassificationCustom is an implementation of QgsClassificationMethod based on standard deviation.
Definition
qgsclassificationstandarddeviation.h:29
QgsClassificationStandardDeviation::METHOD_ID
static const QString METHOD_ID
Definition
qgsclassificationstandarddeviation.h:41
QgsReadWriteContext
The class is used as a container of context for various read/write operations on other objects.
Definition
qgsreadwritecontext.h:34
qgsclassificationmethod.h
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