Am 19.12.2012 20:52, schrieb GerdP:
Henning Scholland wrote
What do you think? Sounds good. Typical the tag-list wont change very often, only if you change your style or then mkgmap changes default tags, so it should be possible to generate such a list manually. First point isn't hard, because the user did this active and can create a new list. If mkgmap-behavior changes, the user doesn't mind it and this could lead to problems. So it would be best, to did this everytime splitter runs. But this could also be managed seperate in script.
First call mkgmap.jar --create-tag-list, then splitter and mkgmap as usual. I just tried a hard coded version of this and the effect is not promising: files are only 4 % smaller, but runtime increased with o5m and decreased with pbf output. All changes are small, so forget that idea. I think it depends on how it should be coded. If you just skip tags, the benefit isn't huge in compressed output. There would be a benefit, if everything is skiped, if it contains a tag. Eg. remove complete landuse=*, natural=* and so on.
But this could also be done with osmfilter or osmosis. So I would agree to forget that idea. Henning