On Fri, May 14, 2010 at 10:22:13AM +0800, maning sambale wrote:
Is there a way to do this in the styles? I basically want some ways and nodes completely removed based on a specific tag and not just the tags contained in it.
Can you do it by preprocessing? In order to get rid of buggy mass-imported landuse multipolygons in Russia, I filter them with a bit of Perl in my osm2img.sh script: OSM=finland.osm OSM_BZ2="$OSM".bz2 wget -cN http://download.geofabrik.de/osm/europe/"$OSM_BZ2" bzip2 -dc "$OSM_BZ2"| perl -e \ 'my $del=0; while(<>){ $del=1 if (/<relation.* version="1".* user="usm78-gis"/); s/(<node id="28954644".*lat=)"60\.51564"/$1"59.326172"/; s/(<node id="29193143".*lon=)"24\.12826"/$1"19.072266"/; print unless $del; $del=0 if m|</relation>|; }' > "$OSM" This bit of Perl also moves the endpoints of the coastline, so that they will touch the tile borders. If you want to filter out by generic key=value pairs rather than by the "built-in tags" such as id, version, user, then it might be easier to use Osmosis. Marko