[OSM-dev] Mapnik style broken?

Sebastian Spaeth Sebastian at SSpaeth.de
Mon May 14 11:58:43 BST 2007


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While working through the trac tickets, I noticed a couple of tickets
that mention broken mapnik rendering when it really should work:

e.g. there is a rule for landuse=industrial but it's not painted. Also
someone complained that natural=wood doesn't render anymore now when it
used to.

There *is* a natural=wood rule, and when I discovered that it is
physically close to the landuse=industrial (in the file) I became
suspicious. A couple of rules above somebody seems to have commented out
a rule like that:
    <!--Rule>
      <Filter>[leisure] = 'pitch'</Filter>
      <MaxScaleDenominator>1000000</MaxScaleDenominator>
      <PolygonSymbolizer>
        <CssParameter name="fill">#7ccd7c</CssParameter>
     </PolygonSymbolizer>
    </Rule-->

This should theoretically be ok, I think, but it might also break the
things mentioned. Could you, or somebody who actually can render mapnik
(haven't installed all dependencies here) try if removing that commented
out thing helps? A simple test might be the wedge of forest which shows
in osmarender, but not mapnik:
http://www.openstreetmap.org/index.html?lat=51.7648494192975&lon=-0.308752428412556&zoom=15

Thanks in advance.
Spaetz

BTW, that file osm.xml seems quite chaotic. e.g all landuses including
cemeteries are clustered under the leisure style :-). That would be a
nice task for someone willing to spend some time.
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