Am 18.03.2011 14:45, schrieb WanMil:
Yes, we provide the same option for coastlines. So it's possible although there is the size restriction. Boundaries take around 3% of the complete OSM data (3% as osm.gz compared to osm.pbf). So think about creating a europe map from the 4.5 GB dump. The boundary data file would be around 3%*4.5GB(osm.pbf) = 135MB(osm.gz). So in the end your computer additionally needs as much main memory as you need to compile a 135MB big tile.
The calculation is quite rough but the result is clear: the memory requirements grow quite much compared to the overall size of your map
Maybe it would be a good solution to change splitter. If one member of a relation with information about boundaries or other polygons is inside a tile, the whole relation should be in that tile. This will also fix problems with huge multipolygons. Henning