Hi,
the wiki says that I have two alternatives to extract boundary data from an OSM file, either osmfilter: "fast, resulting files contains some unused stuff that eats memory when precompiling bounds" or osmosis: "slow". What about a combination of both (first osmconvert, than use osmosis to filter the output of osmconvert) ?
Ciao, Gerd
I tried that once but observed problems. osmconvert/osmfilter with parameter --drop-author generates pbfs that cannot be read with osmosis (http://wiki.openstreetmap.org/wiki/Talk:Osmconvert#PBF_seems_to_be_incorrect...). Don't know if that' still the case. Anyhow one could use osmconvert without --drop-author. I also tried that but I did have another problem I don't remember what thas was. The unused stuff I saw were subrelations of type=collection. There is a warning in the wiki that they shouldn't be used so I don't know if its usage has dropped. Testing the double filter osmfilter/osmosis would be a good thing to see how much stuff is really superfluos when using osmfilter only. WanMil