0

see the image

How can I split the green area as a separate polygon fro the grey one in QGIS?

OpenMapperz
  • 121
  • 2
  • 11
  • Do you mean that you want to use the green polygon to punch a hole in the grey one to leave a doughnut polygon? If so, look for tools with names like erase or a clip that has an option to discard (rather than keep) the area of overlap. – PolyGeo Jan 19 '14 at 21:27

1 Answers1

0

you can use the union tool (vector > geopprocessing tool > union). It will create two polygons with the union of the geometry from the two inputs.

radouxju
  • 49,636
  • 2
  • 71
  • 144