QGIS API Documentation  2.99.0-Master (5d67572)
qgstotalcurvaturefilter.h
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1 /***************************************************************************
2  qgstotalcurvaturefilter.h - description
3  -------------------
4  begin : August 21th, 2009
5  copyright : (C) 2009 by Marco Hugentobler
6  email : marco dot hugentobler at karto dot baug dot ethz dot ch
7  ***************************************************************************/
8 
9 /***************************************************************************
10  * *
11  * This program is free software; you can redistribute it and/or modify *
12  * it under the terms of the GNU General Public License as published by *
13  * the Free Software Foundation; either version 2 of the License, or *
14  * (at your option) any later version. *
15  * *
16  ***************************************************************************/
17 
18 #ifndef QGSTOTALCURVATUREFILTER_H
19 #define QGSTOTALCURVATUREFILTER_H
20 
21 #include "qgsninecellfilter.h"
22 #include "qgis_analysis.h"
23 
27 class ANALYSIS_EXPORT QgsTotalCurvatureFilter: public QgsNineCellFilter
28 {
29  public:
30  QgsTotalCurvatureFilter( const QString &inputFile, const QString &outputFile, const QString &outputFormat );
31  ~QgsTotalCurvatureFilter() = default;
32 
33  protected:
34 
38  float processNineCellWindow( float *x11, float *x21, float *x31,
39  float *x12, float *x22, float *x32,
40  float *x13, float *x23, float *x33 ) override;
41 };
42 
43 #endif // QGSTOTALCURVATUREFILTER_H
Calculates total curvature as described by Wilson, Gallant (2000): terrain analysis.
virtual float processNineCellWindow(float *x11, float *x21, float *x31, float *x12, float *x22, float *x32, float *x13, float *x23, float *x33)=0
Calculates output value from nine input values.
Base class for raster analysis methods that work with a 3x3 cell filter and calculate the value of ea...