SAGA-GIS Module Library Documentation (v2.2.0)

Module Union

Calculates the geometric union of the overlayed polygon layers, i.e. the intersection plus the symmetrical difference of layers A and B.
Uses the free and open source software library Clipper created by Angus Johnson.
Clipper Homepage
Clipper at SourceForge

Parameters

 NameTypeIdentifierDescriptionConstraints
InputLayer AShapes (input)A--
Layer BShapes (input)B--
OutputUnionShapes (output)RESULT--
OptionsSplit PartsBooleanSPLITSet true if you want multipart polygons to become separate polygons.Default: 1

Command-line

Usage: saga_cmd shapes_polygons 17 -A <str> -B <str> [-RESULT <str>] [-SPLIT <str>]
  -A:<str>     	Layer A
	Shapes (input)
  -B:<str>     	Layer B
	Shapes (input)
  -RESULT:<str>	Union
	Shapes (output)
  -SPLIT:<str> 	Split Parts
	Boolean
	Default: 1