Frederik Ramm wrote the following on 18/09/2008 18:46: > Hi, > > I have somehow lost overview over the lowzoom process. A user has > reported displaced placenames on [EMAIL PROTECTED] z11 to me: > > http://informationfreeway.org/?lat=50.47202017317468&lon=7.795465134494669&zoom=11&layers=B000F000F > > The label offset is about 10km north(-east-ish) in the whole area. > > Is this still normal behaviour (I know we used to have projection > issues), or should this have been fixed in the mean time? > I'm still seeing projection problems with or/p in lowzoom as well. See http://lists.openstreetmap.org/pipermail/tilesathome/2008-August/003086.html for when I reported it. Down around NZ the offset appears to be south rather than north. I'm have not done any testing on it but I suspect it seemed to start appearing about the time the op/p proximity filter was added. > Also, the same user reported some white squares on zoom levels 11 and > smaller, which seem to be lowzoom artifacts. Can I tell him to just go > to z8 on informationfreeway and hit "r", or what is the current > established procedure to either update a lowzoom tile yourself or > request that someone else do it? > I have not seen white squares but i have seen black squares which could be related and was caused by a client bug relating to blank z12 blank tiles handling, see http://lists.openstreetmap.org/pipermail/tilesathome/2008-August/003457.html The affected tiles look ok at zoom 12 but any lowzoom based on them is faulty.
Lowzooms for z6-11 are currently done by the server based on z12 changes and I think are done approximately daily so the best way to trigger one is to request a re-render on a z12 tile and then wait for that to trigger the lowzoom. The caption layers used to produce lowzoom are still generated manually by clients though so if you see a problem with captions you need to regenerate the captions manually and upload before trying to trigger the lowzoom. rcr _______________________________________________ Tilesathome mailing list [email protected] http://lists.openstreetmap.org/listinfo/tilesathome
