QgsTotalCurvatureFilter Class Reference

Calculates total curvature as described by Wilson, Gallant (2000): terrain analysis. More...

#include <qgstotalcurvaturefilter.h>

Inheritance diagram for QgsTotalCurvatureFilter:

Collaboration diagram for QgsTotalCurvatureFilter:

List of all members.

Public Member Functions
	QgsTotalCurvatureFilter (const QString &inputFile, const QString &outputFile, const QString &outputFormat)
	~QgsTotalCurvatureFilter ()
Public Member Functions inherited from QgsNineCellFilter
	QgsNineCellFilter (const QString &inputFile, const QString &outputFile, const QString &outputFormat)
	Constructor that takes input file, output file and output format (GDAL string)
virtual	~QgsNineCellFilter ()
int	processRaster (QProgressDialog *p)
	Starts the calculation, reads from mInputFile and stores the result in mOutputFile.

Protected Member Functions
float	processNineCellWindow (float *x11, float *x21, float *x31, float *x12, float *x22, float *x32, float *x13, float *x23, float *x33)
	Calculates total curvature from nine input values.

Additional Inherited Members
Protected Attributes inherited from QgsNineCellFilter
QString	mInputFile
QString	mOutputFile
QString	mOutputFormat
double	mCellSizeX
double	mCellSizeY
float	mInputNodataValue
	The nodata value of the input layer.
float	mOutputNodataValue
	The nodata value of the output layer.

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Detailed Description

Calculates total curvature as described by Wilson, Gallant (2000): terrain analysis.

Definition at line 24 of file qgstotalcurvaturefilter.h.

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Constructor & Destructor Documentation

QgsTotalCurvatureFilter::QgsTotalCurvatureFilter	(	const QString &	inputFile,
		const QString &	outputFile,
		const QString &	outputFormat
	)

Definition at line 20 of file qgstotalcurvaturefilter.cpp.

QgsTotalCurvatureFilter::~QgsTotalCurvatureFilter

(

)

Definition at line 26 of file qgstotalcurvaturefilter.cpp.

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Member Function Documentation

float QgsTotalCurvatureFilter::processNineCellWindow ( float *  x11, float *  x21, float *  x31, float *  x12, float *  x22, float *  x32, float *  x13, float *  x23, float *  x33  )

protectedvirtual

Calculates total curvature from nine input values.

The input values and the output value can be equal to the \ nodata value if not present or outside of the border. Must be implemented by subclasses

Implements QgsNineCellFilter.

Definition at line 31 of file qgstotalcurvaturefilter.cpp.

References QgsNineCellFilter::mCellSizeX, QgsNineCellFilter::mCellSizeY, QgsNineCellFilter::mInputNodataValue, and QgsNineCellFilter::mOutputNodataValue.

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

• /build/buildd/qgis-1.7.4+1.7.5~20120320/src/analysis/raster/qgstotalcurvaturefilter.h
• /build/buildd/qgis-1.7.4+1.7.5~20120320/src/analysis/raster/qgstotalcurvaturefilter.cpp