How can I get Canada to overlap with the rest of my map?

I think this is a CRS problem but I really do not know how to solve it.

enter image description here


Your raster layer is Pacific centered (0 ~ 360 degrees), while the bluish polygon is in -180 ~ +180 degrees space.

You will have to decide which x-range you will use. I think most people will choose to modify vector layer since Affine Transformation is available in many GIS software.

For instance, QGIS has Translate tool (Processing Toolbox > Vector geometry).

Below image shows an example to offset X by +180 degrees for GADM Canada coutry data.

enter image description here

Wait a while (it took me more than 10 minutes) then you will get;

enter image description here

This pink Canada will fit with your raster layer.

My bad, you will need +360; See below comment by Vince.

If you want to edit your raster layer, I don't know any tool in QGIS (I will use SAGA).

  • Shouldn't the translation distance be +360, not +180? You'd want to move Canada north of the US, not onto Finland and Russia. – Vince May 5 '19 at 12:07
  • Aah...!! Thanks @Vince – Kazuhito May 5 '19 at 12:09

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.