QgsRasterNuller Class Reference

Raster pipe that deals with null values. More...

#include <qgsrasternuller.h>

Inheritance diagram for QgsRasterNuller:

Collaboration diagram for QgsRasterNuller:

List of all members.

Classes
struct	NoData
Public Member Functions
	QgsRasterNuller (QgsRasterInterface *input=0)
	~QgsRasterNuller ()
int	bandCount () const
	Get number of bands.
QgsRasterBlock *	block (int bandNo, const QgsRectangle &extent, int width, int height)
	Read block of data using given extent and size.
QgsRasterInterface *	clone () const
	Clone itself, create deep copy.
QGis::DataType	dataType (int bandNo) const
	Returns data type for the band specified by number.
QgsRasterRangeList	noData (int bandNo) const
void	setNoData (int bandNo, QgsRasterRangeList noData)
void	setOutputNoDataValue (int bandNo, double noData)
	Set output no data value.
Private Attributes
QVector< bool >	mHasOutputNoData
QVector< QgsRasterRangeList >	mNoData
QVector< double >	mOutputNoData

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Detailed Description

Raster pipe that deals with null values.

Definition at line 30 of file qgsrasternuller.h.

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Constructor & Destructor Documentation

QgsRasterNuller::QgsRasterNuller

(

QgsRasterInterface *

input = 0

)

Definition at line 21 of file qgsrasternuller.cpp.

Referenced by clone().

QgsRasterNuller::~QgsRasterNuller

(

)

Definition at line 26 of file qgsrasternuller.cpp.

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Member Function Documentation

int QgsRasterNuller::bandCount

(

)

const [virtual]

Get number of bands.

Implements QgsRasterInterface.

Definition at line 60 of file qgsrasternuller.cpp.

References QgsRasterInterface::bandCount(), and QgsRasterInterface::mInput.

QgsRasterBlock * QgsRasterNuller::block	(	int	bandNo,
		const QgsRectangle &	extent,
		int	width,
		int	height
	)		[virtual]

Read block of data using given extent and size.

Returns pointer to data. Caller is responsible to free the memory returned.

Parameters:

bandNo	band number
extent	extent of block
width	pixel width of block
height	pixel height of block

Implements QgsRasterInterface.

Definition at line 72 of file qgsrasternuller.cpp.

References QgsRasterInterface::block(), QgsRasterRange::contains(), QgsRasterBlock::dataType(), QgsRasterBlock::hasNoDataValue(), QgsRasterBlock::isNoData(), mHasOutputNoData, QgsRasterInterface::mInput, mNoData, mOutputNoData, QgsRasterBlock::noDataValue(), QgsDebugMsg, QgsRasterBlock::setIsNoData(), QgsRasterBlock::setValue(), QgsRasterBlock::typeIsColor(), and QgsRasterBlock::value().

QgsRasterInterface * QgsRasterNuller::clone

(

)

const [virtual]

Clone itself, create deep copy.

Implements QgsRasterInterface.

Definition at line 30 of file qgsrasternuller.cpp.

References mHasOutputNoData, mNoData, mOutputNoData, QgsDebugMsg, and QgsRasterNuller().

QGis::DataType QgsRasterNuller::dataType

(

int

bandNo

)

const [virtual]

Returns data type for the band specified by number.

Implements QgsRasterInterface.

Definition at line 66 of file qgsrasternuller.cpp.

References QgsRasterInterface::dataType(), QgsRasterInterface::mInput, and QGis::UnknownDataType.

QgsRasterRangeList QgsRasterNuller::noData

(

int

bandNo

)

const [inline]

Definition at line 52 of file qgsrasternuller.h.

Referenced by setNoData(), setOutputNoDataValue(), and QgsRasterFileWriter::writeDataRaster().

void QgsRasterNuller::setNoData	(	int	bandNo,
		QgsRasterRangeList	noData
	)

Definition at line 51 of file qgsrasternuller.cpp.

References mNoData, and noData().

void QgsRasterNuller::setOutputNoDataValue	(	int	bandNo,
		double	noData
	)

Set output no data value.

Definition at line 40 of file qgsrasternuller.cpp.

References mHasOutputNoData, mOutputNoData, and noData().

Referenced by QgsRasterFileWriter::writeDataRaster().

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Member Data Documentation

QVector<bool> QgsRasterNuller::mHasOutputNoData [private]

Definition at line 62 of file qgsrasternuller.h.

Referenced by block(), clone(), and setOutputNoDataValue().

QVector< QgsRasterRangeList > QgsRasterNuller::mNoData [private]

Definition at line 59 of file qgsrasternuller.h.

Referenced by block(), clone(), and setNoData().

QVector<double> QgsRasterNuller::mOutputNoData [private]

Definition at line 61 of file qgsrasternuller.h.

Referenced by block(), clone(), and setOutputNoDataValue().

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

• src/core/raster/qgsrasternuller.h
• src/core/raster/qgsrasternuller.cpp