Polygon Generalization
- Author: O.Conrad (c) 2019
- Menu: Shapes | Polygons
Description
A simple generalization tool for polygons. The tool joins polygons with an area size smaller than the specified threshold to a neighbouring polygon. Either the neighbouring polygon with the largest area or the one with which the largest edge length is shared wins.
Parameters
| Name | Type | Identifier | Description | Constraints | |
|---|---|---|---|---|---|
| Input | Shapes | shapes, input | POLYGONS | The input polygons. | - |
| Output | Generalized Shapes | shapes, output, optional | GENERALIZED | The generalized output polygons. | - |
| Options | Area Threshold | floating point number | THRESHOLD | The maximum area of a polygon to get joined [map units squared]. | Minimum: 0.000000 Default: 100.000000 |
| Join to Neighbour with ... | choice | JOIN_TO | Choose the method to determine the winner polygon. | Available Choices: [0] largest area [1] largest shared edge length Default: 0 | |
| Check Vertices | boolean | VERTICES | - | Default: 0 | |
| Tolerance | floating point number | EPSILON | - | Minimum: 0.000000 Default: 0.000010 |
Command Line
Usage: saga_cmd shapes_polygons 23 [-POLYGONS] [-GENERALIZED ] [-THRESHOLD ] [-JOIN_TO ] [-VERTICES ] [-EPSILON ] -POLYGONS: Shapes shapes, input -GENERALIZED: Generalized Shapes shapes, output, optional -THRESHOLD: Area Threshold floating point number Minimum: 0.000000 Default: 100.000000 -JOIN_TO: Join to Neighbour with ... choice Available Choices: [0] largest area [1] largest shared edge length Default: 0 -VERTICES: Check Vertices boolean Default: 0 -EPSILON: Tolerance floating point number Minimum: 0.000000 Default: 0.000010