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qgshillshadefilter.h
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1 /***************************************************************************
2  qgshillshadefilter.h - description
3  --------------------------------
4  begin : September 26th, 2011
5  copyright : (C) 2011 by Marco Hugentobler
6  email : marco dot hugentobler at sourcepole 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 QGSHILLSHADEFILTER_H
19 #define QGSHILLSHADEFILTER_H
20 
21 #include "qgsderivativefilter.h"
22 
23 class ANALYSIS_EXPORT QgsHillshadeFilter: public QgsDerivativeFilter
24 {
25  public:
26  QgsHillshadeFilter( const QString& inputFile, const QString& outputFile, const QString& outputFormat, double lightAzimuth = 300,
27  double lightAngle = 40 );
28  ~QgsHillshadeFilter();
29 
32  float processNineCellWindow( float* x11, float* x21, float* x31,
33  float* x12, float* x22, float* x32,
34  float* x13, float* x23, float* x33 );
35 
36  float lightAzimuth() const { return mLightAzimuth; }
37  void setLightAzimuth( float azimuth ) { mLightAzimuth = azimuth; }
38  float lightAngle() const { return mLightAngle; }
39  void setLightAngle( float angle ) { mLightAngle = angle; }
40 
41  private:
42  float mLightAzimuth;
43  float mLightAngle;
44 };
45 
46 #endif // QGSHILLSHADEFILTER_H
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