SAGA-GIS Tool Library Documentation (v9.1.2)

Tool Resampling Filter

Resampling filter for grids. Resamples in a first step the given grid to desired resampling cell size, expressed as multiple of the original cell size (scale factor). This is an up-scaling through which cell values are aggregated as cell area weighted means. Second step is the down-scaling to original cell size using spline interpolation. Specially for larger search distances this is a comparably fast alternative for simple low and high pass filter operations.

Parameters

 NameTypeIdentifierDescriptionConstraints
InputGridGrid, inputGRID--
OutputLow Pass FilterGrid, outputLOPASS--
High Pass FilterGrid, outputHIPASS--
OptionsGrid SystemGrid systemPARAMETERS_GRID_SYSTEM--
Scale FactorFloating pointSCALE-Minimum: 1.000000
Default: 10.000000

Command-line

Usage: saga_cmd grid_filter 11 [-GRID <str>] [-LOPASS <str>] [-HIPASS <str>] [-SCALE <double>]
  -GRID:<str>    	Grid
	Grid, input
  -LOPASS:<str>  	Low Pass Filter
	Grid, output
  -HIPASS:<str>  	High Pass Filter
	Grid, output
  -SCALE:<double>	Scale Factor
	Floating point
	Minimum: 1.000000
	Default: 10.000000