Difference
- Author: O.Conrad (c) 2003-17
- Menu: Shapes | Polygons | Overlay
Description
Calculates the geometric difference of the overlayed polygon layers, i.e. layer A less layer B. Sometimes referred to as 'Erase' command.
Uses the free and open source software library Clipper created by Angus Johnson.
Clipper Homepage
Clipper at SourceForge
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | Layer A | shapes, input | A | - | - |
| Layer B | shapes, input | B | - | - |
| Output | Difference | shapes, output | RESULT | - | - |
| Options | Split Parts | boolean | SPLIT | Set true if you want multipart polygons to become separate polygons. | Default: 1 |
Command Line
Usage: saga_cmd shapes_polygons 15 [-A ] [-B ] [-RESULT ] [-SPLIT ]
-A: Layer A
shapes, input
-B: Layer B
shapes, input
-RESULT: Difference
shapes, output
-SPLIT: Split Parts
boolean
Default: 1