2

Is there a way to either display a grid with WGS 84 decimal degrees over a map that is in EPSG:3857, something like OpenStreetMap? I've tried changing the project's the map's and the grid's CRS but I either get a map that's stretched and has wrong coordinates, no map or when I tried changing grid CRS no grid at all.

Also, what's with the coordinates being reversed in QGIS?

1
  • 2
    Yes there is. You don't need to change any CRSs, QGIS will handle the transformations on-the-fly. Simply add your layers to your canvas and then add a Grid to the map layout and choose WGS84 as its CRS.
    – Matt
    Mar 21, 2022 at 19:11

1 Answer 1

2

There are at least two approaches to create a grid: in the QGIS main window, creating a vector (line) layer or in the print composer. Normally, you should stick to the last solution. However, if for some reason you need it as a separate layer, I describe both approaches:

QGIS main map canvas

To add a grid in the QGIS main windon on the map canvas, go to Menu Vector > Research Tools > Create Grid. Use Line Grid Type, set Grid CRS to EPSG:4326 and define a Grid extent consisting of integer numbers only - like -189,189,-134,128 [EPSG:4326]. For Horizontal/Vertical spacing use an integer value like 1 as well for 1 degrees intervals.

Depending on the project CRS, you should densify the grid lines to get a correct grid.

enter image description here

Print composer

To add a grid in the print composer, on the map element's Item Properties, expand the section Grid click the green plus to create a new grid and make the relevant settings:

enter image description here

0

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

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