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The Union function converts several polygons into one polygon.

Use union

To use the union for polygons:

•Select the polygons.

•From the ribbon Geometry, in the group Boolean, click on the button .

When polygons do not touch, MithraSIG will create multipolygons. Multipolygons cannot be converted into MithraSIG objects.

Note: When polygons have attributes, the attributes reported on the new object are those of the last objects selected before execute the command.