Hi, this is just a small heads-up. The Geofabrik downloads (regional .osm.pbf extracts for various continents, countries etc) will switch to a different software stack later this month. We currently use osm-history-splitter which is based on an older version of Osmium, and will in the future use a new feature offered by the osmium command line tool and the newest Osmium version instead.
This will enable us to change the handling of relations in the extracts. Currently, relations are included in the extracts if one of their members lies (partially) inside the area; but members of the relation that lie fully outside the area are not considered. This has adverse effects when large multipolygons cross the border, for example Lake Constance not be fully contained in any of the Germany, Austria, or Switzerland extracts. In the future we will be able to include all members of multipolygon relations that have at least one member (partially) inside the area. This will only be done for multipolygons and not for other relations (like boundaries or routes). Therefore, water bodies, forests etc. that cross the boundary should in the future be fully contained in the extracts. This comes at a price of a slightly larger extract but the difference is negligible. On the day we make the switch, all regional .osc files will have a slight size bump becasue all the missing bits and pieces required to complete the multipolygons will be contained in them. Bye Frederik -- Frederik Ramm ## eMail frede...@remote.org ## N49°00'09" E008°23'33" _______________________________________________ dev mailing list dev@openstreetmap.org https://lists.openstreetmap.org/listinfo/dev
