QgsRasterMinMaxOrigin Class Reference

This class describes the origin of min/max values. More...

#include <qgsrasterminmaxorigin.h>

Public Types
enum	Extent { WholeRaster , CurrentCanvas , UpdatedCanvas }
	This enumerator describes the extent used to compute min/max values. More...
enum	Limits { None , MinMax , StdDev , CumulativeCut }
	This enumerator describes the limits used to compute min/max values. More...
enum	StatAccuracy { Exact , Estimated }
	This enumerator describes the accuracy used to compute statistics. More...

Public Member Functions
	QgsRasterMinMaxOrigin ()
	Default constructor.
double	cumulativeCutLower () const
	Returns the lower bound of cumulative cut method (between 0 and 1).
double	cumulativeCutUpper () const
	Returns the upper bound of cumulative cut method (between 0 and 1).
QgsRasterMinMaxOrigin::Extent	extent () const
	Returns the raster extent.
QgsRasterMinMaxOrigin::Limits	limits () const
	Returns the raster limits.
bool	operator== (const QgsRasterMinMaxOrigin &other) const
	Equality operator.
void	readXml (const QDomElement &elem)
	Deserialize object.
void	setCumulativeCutLower (double val)
	Sets the lower bound of cumulative cut method (between 0 and 1).
void	setCumulativeCutUpper (double val)
	Sets the upper bound of cumulative cut method (between 0 and 1).
void	setExtent (QgsRasterMinMaxOrigin::Extent extent)
	Sets the extent.
void	setLimits (QgsRasterMinMaxOrigin::Limits limits)
	Sets the limits.
void	setStatAccuracy (QgsRasterMinMaxOrigin::StatAccuracy accuracy)
	Sets the statistics accuracy.
void	setStdDevFactor (double val)
	Sets the factor f so that the min/max range is [ mean - f * stddev , mean + f * stddev ].
QgsRasterMinMaxOrigin::StatAccuracy	statAccuracy () const
	Returns the raster statistic accuracy.
double	stdDevFactor () const
	Returns the factor f so that the min/max range is [ mean - f * stddev , mean + f * stddev ].
void	writeXml (QDomDocument &doc, QDomElement &parentElem) const
	Serialize object.

Static Public Member Functions
static QgsRasterMinMaxOrigin::Extent	extentFromString (const QString &extent)
	Deserialize Extent.
static QString	extentString (QgsRasterMinMaxOrigin::Extent extent)
	Returns a string to serialize Extent.
static Limits	limitsFromString (const QString &limits)
	Deserialize Limits.
static QString	limitsString (Limits limits)
	Returns a string to serialize Limits.
static QgsRasterMinMaxOrigin::StatAccuracy	statAccuracyFromString (const QString &accuracy)
	Deserialize StatAccuracy.
static QString	statAccuracyString (QgsRasterMinMaxOrigin::StatAccuracy accuracy)
	Returns a string to serialize StatAccuracy.

Static Public Attributes
static constexpr double	CUMULATIVE_CUT_LOWER = 0.02
	Default cumulative cut lower limit.
static constexpr double	CUMULATIVE_CUT_UPPER = 0.98
	Default cumulative cut upper limit.
static constexpr double	DEFAULT_STDDEV_FACTOR = 2.0
	Default standard deviation factor.

Detailed Description

This class describes the origin of min/max values.

It does not store by itself the min/max values.

Definition at line 32 of file qgsrasterminmaxorigin.h.

Member Enumeration Documentation

Extent

enum QgsRasterMinMaxOrigin::Extent

This enumerator describes the extent used to compute min/max values.

Enumerator
WholeRaster	Whole raster is used to compute statistics.
CurrentCanvas	Current extent of the canvas (at the time of computation) is used to compute statistics.
UpdatedCanvas	Constantly updated extent of the canvas is used to compute statistics.

Definition at line 67 of file qgsrasterminmaxorigin.h.

Limits

enum QgsRasterMinMaxOrigin::Limits

This enumerator describes the limits used to compute min/max values.

Enumerator
None	User defined.
MinMax	Real min-max values.
StdDev	Range is [ mean - stdDevFactor() * stddev, mean + stdDevFactor() * stddev ].
CumulativeCut	Range is [ min + cumulativeCutLower() * (max - min), min + cumulativeCutUpper() * (max - min) ].

Definition at line 57 of file qgsrasterminmaxorigin.h.

StatAccuracy

enum QgsRasterMinMaxOrigin::StatAccuracy

This enumerator describes the accuracy used to compute statistics.

Enumerator
Exact	Exact statistics.
Estimated	Approximated statistics.

Definition at line 78 of file qgsrasterminmaxorigin.h.

Constructor & Destructor Documentation

QgsRasterMinMaxOrigin()

QgsRasterMinMaxOrigin::QgsRasterMinMaxOrigin

(

)

Default constructor.

Definition at line 25 of file qgsrasterminmaxorigin.cpp.

Member Function Documentation

cumulativeCutLower()

double QgsRasterMinMaxOrigin::cumulativeCutLower ( ) const

inline

Returns the lower bound of cumulative cut method (between 0 and 1).

Definition at line 104 of file qgsrasterminmaxorigin.h.

cumulativeCutUpper()

double QgsRasterMinMaxOrigin::cumulativeCutUpper ( ) const

inline

Returns the upper bound of cumulative cut method (between 0 and 1).

Definition at line 107 of file qgsrasterminmaxorigin.h.

extent()

QgsRasterMinMaxOrigin::Extent QgsRasterMinMaxOrigin::extent ( ) const

inline

Returns the raster extent.

Definition at line 98 of file qgsrasterminmaxorigin.h.

extentFromString()

QgsRasterMinMaxOrigin::Extent QgsRasterMinMaxOrigin::extentFromString ( const QString &  extent )

static

Deserialize Extent.

Definition at line 93 of file qgsrasterminmaxorigin.cpp.

extentString()

QString QgsRasterMinMaxOrigin::extentString ( QgsRasterMinMaxOrigin::Extent  extent )

static

Returns a string to serialize Extent.

Definition at line 79 of file qgsrasterminmaxorigin.cpp.

limits()

QgsRasterMinMaxOrigin::Limits QgsRasterMinMaxOrigin::limits ( ) const

inline

Returns the raster limits.

Definition at line 95 of file qgsrasterminmaxorigin.h.

limitsFromString()

QgsRasterMinMaxOrigin::Limits QgsRasterMinMaxOrigin::limitsFromString ( const QString &  limits )

static

Deserialize Limits.

Definition at line 62 of file qgsrasterminmaxorigin.cpp.

limitsString()

QString QgsRasterMinMaxOrigin::limitsString ( Limits  limits )

static

Returns a string to serialize Limits.

Definition at line 46 of file qgsrasterminmaxorigin.cpp.

operator==()

bool QgsRasterMinMaxOrigin::operator==

(

const QgsRasterMinMaxOrigin &

other

)

const

Equality operator.

Definition at line 36 of file qgsrasterminmaxorigin.cpp.

readXml()

void QgsRasterMinMaxOrigin::readXml

(

const QDomElement &

elem

)

Deserialize object.

Definition at line 166 of file qgsrasterminmaxorigin.cpp.

setCumulativeCutLower()

void QgsRasterMinMaxOrigin::setCumulativeCutLower ( double  val )

inline

Sets the lower bound of cumulative cut method (between 0 and 1).

Definition at line 124 of file qgsrasterminmaxorigin.h.

setCumulativeCutUpper()

void QgsRasterMinMaxOrigin::setCumulativeCutUpper ( double  val )

inline

Sets the upper bound of cumulative cut method (between 0 and 1).

Definition at line 127 of file qgsrasterminmaxorigin.h.

setExtent()

void QgsRasterMinMaxOrigin::setExtent ( QgsRasterMinMaxOrigin::Extent  extent )

inline

Sets the extent.

Definition at line 118 of file qgsrasterminmaxorigin.h.

setLimits()

void QgsRasterMinMaxOrigin::setLimits ( QgsRasterMinMaxOrigin::Limits  limits )

inline

Sets the limits.

Definition at line 115 of file qgsrasterminmaxorigin.h.

setStatAccuracy()

void QgsRasterMinMaxOrigin::setStatAccuracy ( QgsRasterMinMaxOrigin::StatAccuracy  accuracy )

inline

Sets the statistics accuracy.

Definition at line 121 of file qgsrasterminmaxorigin.h.

setStdDevFactor()

void QgsRasterMinMaxOrigin::setStdDevFactor ( double  val )

inline

Sets the factor f so that the min/max range is [ mean - f * stddev , mean + f * stddev ].

Definition at line 130 of file qgsrasterminmaxorigin.h.

statAccuracy()

QgsRasterMinMaxOrigin::StatAccuracy QgsRasterMinMaxOrigin::statAccuracy ( ) const

inline

Returns the raster statistic accuracy.

Definition at line 101 of file qgsrasterminmaxorigin.h.

statAccuracyFromString()

QgsRasterMinMaxOrigin::StatAccuracy QgsRasterMinMaxOrigin::statAccuracyFromString ( const QString &  accuracy )

static

Deserialize StatAccuracy.

Definition at line 120 of file qgsrasterminmaxorigin.cpp.

statAccuracyString()

QString QgsRasterMinMaxOrigin::statAccuracyString ( QgsRasterMinMaxOrigin::StatAccuracy  accuracy )

static

Returns a string to serialize StatAccuracy.

Definition at line 113 of file qgsrasterminmaxorigin.cpp.

stdDevFactor()

double QgsRasterMinMaxOrigin::stdDevFactor ( ) const

inline

Returns the factor f so that the min/max range is [ mean - f * stddev , mean + f * stddev ].

Definition at line 110 of file qgsrasterminmaxorigin.h.

writeXml()

void QgsRasterMinMaxOrigin::writeXml	(	QDomDocument &	doc,
		QDomElement &	parentElem
	)		const

Serialize object.

Definition at line 127 of file qgsrasterminmaxorigin.cpp.

Member Data Documentation

CUMULATIVE_CUT_LOWER

constexpr double QgsRasterMinMaxOrigin::CUMULATIVE_CUT_LOWER = 0.02

staticconstexpr

Default cumulative cut lower limit.

Definition at line 38 of file qgsrasterminmaxorigin.h.

CUMULATIVE_CUT_UPPER

constexpr double QgsRasterMinMaxOrigin::CUMULATIVE_CUT_UPPER = 0.98

staticconstexpr

Default cumulative cut upper limit.

Definition at line 41 of file qgsrasterminmaxorigin.h.

DEFAULT_STDDEV_FACTOR

constexpr double QgsRasterMinMaxOrigin::DEFAULT_STDDEV_FACTOR = 2.0

staticconstexpr

Default standard deviation factor.

Definition at line 44 of file qgsrasterminmaxorigin.h.

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The documentation for this class was generated from the following files:

• /home/fischer/src/qgis-3.38/src/core/raster/qgsrasterminmaxorigin.h
• /home/fischer/src/qgis-3.38/src/core/raster/qgsrasterminmaxorigin.cpp