I have a problem and wanted to share it with the community in order to see if anyone was eventually able to help me finding out a solution. I have actually a dataset composed of points and projected on a shapefile describing European countries.
My goal is the following : create a new shapefile, with zones specified 100 kilometers around the boarders in-between all the States, since I want to see if there are more points close to the boarders, or not.
I thought that Buffer would be a nice way to do it but didn't manage to find out how to practically do this. I converted the polygone shapefile once to line, and then used the function Buffer, but there is nothing appearing. I did the same without converting before.
Thank you very much a lot for your help,