Geomorphons
- Author: O.Conrad (c) 2019
- Menu: Terrain Analysis | Terrain Classification
Description
This tool derives so called geomorphons, which represent categories of terrain forms, from a digital elevation model using a machine vision approach.
References
- Jasiewicz, J. / Stepinski, T.F. (2013): Geomorphons - a pattern recognition approach to classification and mapping of landforms. Geomorphology, 182, 147-156. doi:10.1016/j.geomorph.2012.11.005.
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | Elevation | grid, input | DEM | - | - |
| Output | Geomorphons | grid, output | GEOMORPHONS | - | - |
| Options | Grid System | grid system | PARAMETERS_GRID_SYSTEM | - | - |
| Threshold Angle | floating point number | THRESHOLD | Flatness threshold angle (degrees). | Minimum: 0.000000
Default: 1.000000 |
| Radial Limit | floating point number | RADIUS | The radial limit (search radius) [map units]. | Minimum: 0.000000
Default: 10000.000000 |
| Method | choice | METHOD | - | Available Choices:
[0] multi scale
[1] line tracing
Default: 1 |
| Multi Scale Factor | floating point number | DLEVEL | - | Minimum: 1.250000
Default: 3.000000 |
Command Line
Usage: saga_cmd ta_lighting 8 [-DEM ] [-GEOMORPHONS ] [-THRESHOLD ] [-RADIUS ] [-METHOD ] [-DLEVEL ]
-DEM: Elevation
grid, input
-GEOMORPHONS: Geomorphons
grid, output
-THRESHOLD: Threshold Angle
floating point number
Minimum: 0.000000
Default: 1.000000
-RADIUS: Radial Limit
floating point number
Minimum: 0.000000
Default: 10000.000000
-METHOD: Method
choice
Available Choices:
[0] multi scale
[1] line tracing
Default: 1
-DLEVEL: Multi Scale Factor
floating point number
Minimum: 1.250000
Default: 3.000000