2

Using QGIS 2.18.3, I have a project containing a single vector layer. Both the project and the layer have the same CRS: NAD83/Alaska Albers (EPSG:3338). I need to temporarily modify the project's CRS by changing the Longitude of Center from the default value of -154 to -163.

I've tried to edit the default longitude value in the Project Properties window, as highlighted in the screenshot below, but QGIS does not allow me to overwrite the default value.

enter image description here

Please note that I do not wish to reproject the data layer; rather I wish to modify the project display.

Improve this question

1 Answer 1

Reset to default
4

If you need to modify an existing CRS, then go to Settings -> Custom CRS -> Click on Copy Existing button located at the lower right corner, as shown below:

enter image description here

Search for EPSG: 3338to modify the Longitude of Center from the default value of -154 to -163.

Lastly, you need to modify the name of existing CRS as below (for example):

enter image description here

Now go to Project -> Project Properties and enable 'on the fly' CRS transformation if it is not enabled already, and navigate to User defined CRS located at the bottom of CRS list to select the CRS that you modified in the previous step:

enter image description here

Improve this answer

Your Answer

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

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