[Qgis-user] How to 'difference' in existing layer

[Lene Fischer]

Hi

I have two layers of polygons
I want to make holes in the first layer using the second layer as mask.

I can do this by function ‘Difference’ – but the result is a third layer.
I would like the holes in the polygons to be in the first (existing) layer.

Any suggestions ☺

Regards


Lene Fischer
Associate Professor

University of Copenhagen
Department of Geoscience and Natural Resource Management
Forest and Landscape College
Nødebovej 77a
3480 Fredensborg
Denmark


DIR +45 35331579
MOB +45 40115084
lfi at ign.ku.dk<mailto:lfi at ign.ku.dk>
www.ign.ku.dk<http://www.ign.ku.dk/>


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