On Tue, Apr 24, Frederik Ramm wrote: > Not sure but willing to try. What is common about these artefacts > that could be used by the script to detect them? They're four to six segments long closed polygons tagged natural=coastline; source=PGS_shiftedA; created_by=almien_coastlines \\kristian -- ... et nemo ex vobis interrogat me: »Quo vadis?«.