Hi Lene,
try the DigitizingTools plugin [1]. The function that does just what you
want is "Cut with polygon from another layer".
Be aware that this tool is intended for use during digitizing: you can
decide which features of layer A to cut and which features of layer B to
use for cutting by making selections. It is possible to cut all features
of layer A with all features of layer B, though.
Bernhard
[1] http://plugins.qgis.org/plugins/DigitizingTools/
Am 13.02.2017 um 08:45 schrieb 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 J
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
l...@ign.ku.dk <mailto:l...@ign.ku.dk>
www.ign.ku.dk <http://www.ign.ku.dk/>
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