On 31 Aug 2009, at 10:14, Jon Burgess wrote: > 2009/8/31 Tom Chance <[email protected]>: >> There's a curious Mapnik problem in Peckham, London: >> >> http://www.openstreetmap.org/?mlat=51.47008&mlon=-0.06592&zoom=16&layers=B000FTF >> >> That industrial park has been split into two halves at that >> particular zoom >> level - each with a different shade of purple - for months. Zoom in >> and it's >> the newer, darker purple. There's no problem that I can see with >> the data, and >> I've even made updates to the area which have forced the left hand, >> lighter >> tile to be redrawn. But it's still split. >> >> Any ideas? > > That looks like an artefact of the colour reduction algorithm used to > make the 256 colour PNG files. It is quite rare and I don't know how > to fix it. >
Tweaking of the colours will fix the problem. It requires a lot of experimentation. Shaun _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
