Module 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.
- Author: O.Conrad (c) 2012
- Menu: Grid|Filter
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | Grid | Grid (input) | GRID | - | - |
| Output | Low Pass Filter | Grid (output) | LOPASS | - | - |
| High Pass Filter | Grid (output) | HIPASS | - | - |
| Options | Grid system | Grid system | PARAMETERS_GRID_SYSTEM | Grid system | - |
| Scale Factor | Floating point | SCALE | - | 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