QGIS API Documentation
3.0.2-Girona (307d082)
src
analysis
raster
qgsaspectfilter.h
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/***************************************************************************
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qgsaspectfilter.h - description
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---------------------------------
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begin : August 7th, 2009
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copyright : (C) 2009 by Marco Hugentobler
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email : marco dot hugentobler at karto dot baug dot ethz dot ch
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***************************************************************************/
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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 QGSASPECTFILTER_H
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#define QGSASPECTFILTER_H
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#include "
qgsderivativefilter.h
"
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#include "qgis_analysis.h"
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class
ANALYSIS_EXPORT
QgsAspectFilter
:
public
QgsDerivativeFilter
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{
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public
:
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QgsAspectFilter
(
const
QString &inputFile,
const
QString &outputFile,
const
QString &outputFormat );
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float
processNineCellWindow
(
float
*x11,
float
*x21,
float
*x31,
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float
*x12,
float
*x22,
float
*x32,
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float
*x13,
float
*x23,
float
*x33 )
override
;
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};
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#endif // QGSASPECTFILTER_H
QgsDerivativeFilter::processNineCellWindow
float processNineCellWindow(float *x11, float *x21, float *x31, float *x12, float *x22, float *x32, float *x13, float *x23, float *x33) override=0
Calculates output value from nine input values.
QgsAspectFilter
Calculates aspect values in a window of 3x3 cells based on first order derivatives in x- and y- direc...
Definition:
qgsaspectfilter.h:27
qgsderivativefilter.h
QgsDerivativeFilter
Adds the ability to calculate derivatives in x- and y-directions.
Definition:
qgsderivativefilter.h:27
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