3

I want to draw a map for all the counties of the UK including Northern Ireland. Since I cannot find a source of counties including both Northern Ireland and Britain, I tried to merge two shapefiles with QGIS from different sources (Northern Ireland and Britain) by myself.

On QGIS, it looks good when I look at the map with two different layers.

Map showing county boundaries of Northern Ireland and Britain

But when I try to merge the two shapefiles, Northern Ireland overlays Britain as shown below.

Map of British county boundaries

Is there anything I can do to get my ideal result like the first image?

Improve this question
1
  • And what happens when you copy paste the features from shapefile 1 into 2 or the other way around? – kwoxer Mar 29 '15 at 9:21
4

You have to reproject one layer to another name and the CRS of the other before you can merge them.

Merging only works if both files look well-placed with On-the-fly-reprojectionturned OFF.

Improve this answer
1
  • Yeah the British ones will in EPSG:27700 British National Grid, but that does not contain NI. The NI ones will be something different. Might be best to re-project them both into ETRS89 EPSG:4258. – HeikkiVesanto Jul 7 '15 at 15:42

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.