QGIS API Documentation
3.14.0-Pi (9f7028fd23)
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#include <qgsslopefilter.h>
Public Member Functions | |
QgsSlopeFilter (const QString &inputFile, const QString &outputFile, const QString &outputFormat) | |
float | processNineCellWindow (float *x11, float *x21, float *x31, float *x12, float *x22, float *x32, float *x13, float *x23, float *x33) override |
Calculates output value from nine input values. More... | |
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QgsDerivativeFilter (const QString &inputFile, const QString &outputFile, const QString &outputFormat) | |
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QgsNineCellFilter (const QString &inputFile, const QString &outputFile, const QString &outputFormat) | |
Constructor that takes input file, output file and output format (GDAL string) More... | |
virtual | ~QgsNineCellFilter ()=default |
double | cellSizeX () const |
double | cellSizeY () const |
double | inputNodataValue () const |
double | outputNodataValue () const |
int | processRaster (QgsFeedback *feedback=nullptr) |
Starts the calculation, reads from mInputFile and stores the result in mOutputFile. More... | |
void | setCellSizeX (double size) |
void | setCellSizeY (double size) |
void | setInputNodataValue (double value) |
void | setOutputNodataValue (double value) |
void | setZFactor (double factor) |
double | zFactor () const |
Additional Inherited Members | |
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float | calcFirstDerX (float *x11, float *x21, float *x31, float *x12, float *x22, float *x32, float *x13, float *x23, float *x33) |
Calculates the first order derivative in x-direction according to Horn (1981) More... | |
float | calcFirstDerY (float *x11, float *x21, float *x31, float *x12, float *x22, float *x32, float *x13, float *x23, float *x33) |
Calculates the first order derivative in y-direction according to Horn (1981) More... | |
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double | mCellSizeX = -1.0 |
double | mCellSizeY = -1.0 |
QString | mInputFile |
float | mInputNodataValue = -1.0 |
The nodata value of the input layer. More... | |
QString | mOutputFile |
QString | mOutputFormat |
float | mOutputNodataValue = -1.0 |
The nodata value of the output layer. More... | |
double | mZFactor = 1.0 |
Scale factor for z-value if x-/y- units are different to z-units (111120 for degree->meters and 370400 for degree->feet) More... | |
Calculates slope values in a window of 3x3 cells based on first order derivatives in x- and y- directions
Definition at line 27 of file qgsslopefilter.h.
QgsSlopeFilter::QgsSlopeFilter | ( | const QString & | inputFile, |
const QString & | outputFile, | ||
const QString & | outputFormat | ||
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Definition at line 21 of file qgsslopefilter.cpp.
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overridevirtual |
Calculates output value 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 QgsDerivativeFilter.
Definition at line 27 of file qgsslopefilter.cpp.