Hello Bernd
In attached you can find the script I use for both Osmconvert (first) and Splitter (second), with the running log.
To cut off the data I use poly files downloaded from :    http://download.openstreetmap.fr/polygons/europe/italy/

They have a poly for each italian region and there is a overhang over all the edges: it's pretty large, much larger than geofabrik's.
For example:

What is very strange is that I get the empty area or artefacts right over the region bounds or just inside them, not outside where the poly file cuts it.

Thank you for any help: this thing is driving me crazy !!! 🙁

Diego



>Hi Diego
>
>can you tell us the options of your tools, especially for Splitter.
>
>Did you use you shape files to cut off the data?
>
>BTW: i cut my DEM files with the polygone files from the Geofabrikm they have a
>small overhang the edges, that prevent  data loses.
>
>Bernd
Da: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> per conto di mkgmap-dev-request@lists.mkgmap.org.uk <mkgmap-dev-request@lists.mkgmap.org.uk>
Inviato: lunedì 10 aprile 2023 11:00
A: mkgmap-dev@lists.mkgmap.org.uk <mkgmap-dev@lists.mkgmap.org.uk>
Oggetto: mkgmap-dev Digest, Vol 177, Issue 2
 
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