Added reference to algorithm description for ruggedness index

git-svn-id: http://svn.osgeo.org/qgis/trunk@14464 c8812cc2-4d05-0410-92ff-de0c093fc19c
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mhugent 2010-10-31 17:41:57 +00:00
parent 2ba6227462
commit 40b7172cbf

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@ -20,7 +20,8 @@
#include "qgsninecellfilter.h"
/**Calculates the ruggedness index based on a 3x3 moving window*/
/**Calculates the ruggedness index based on a 3x3 moving window.
Algorithm from Riley et al. 1999: A terrain ruggedness index that quantifies topographic heterogeneity*/
class ANALYSIS_EXPORT QgsRuggednessFilter: public QgsNineCellFilter
{
public: