Surface Specific Points
- Author: (c) 2001 by O.Conrad
- Menu: Terrain Analysis | Terrain Classification
Description
References:
Peucker, T.K. and Douglas, D.H., 1975:
'Detection of surface-specific points by local parallel processing of discrete terrain elevation data',
Computer Graphics and Image Processing, 4, 375-387
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | Elevation | grid, input | ELEVATION | - | - |
| Output | Result | grid, output | RESULT | - | - |
| Options | Grid System | grid system | PARAMETERS_GRID_SYSTEM | - | - |
| Method | choice | METHOD | Algorithm for the detection of Surface Specific Points | Available Choices:
[0] Mark Highest Neighbour
[1] Opposite Neighbours
[2] Flow Direction
[3] Flow Direction (up and down)
[4] Peucker & Douglas
Default: 1 |
| Threshold | floating point number | THRESHOLD | Threshold for Peucker & Douglas Algorithm | Default: 2.000000 |
Command Line
Usage: saga_cmd ta_morphometry 3 [-ELEVATION ] [-RESULT ] [-METHOD ] [-THRESHOLD ]
-ELEVATION: Elevation
grid, input
-RESULT: Result
grid, output
-METHOD: Method
choice
Available Choices:
[0] Mark Highest Neighbour
[1] Opposite Neighbours
[2] Flow Direction
[3] Flow Direction (up and down)
[4] Peucker & Douglas
Default: 1
-THRESHOLD: Threshold
floating point number
Default: 2.000000