[OSM-talk] Islands in lakes

[Donald Allwright]

Hi All,
    Can anyone explain what's gone wrong here:
http://www.informationfreeway.org/?lat=-15.756477951963221&lon=-69.56994035747516&zoom=12&layers=B000F000F

?

Following the discussions last week about how to tag islands in lakes so that they render properly, I've gone round and re-worked the tags for islands in Lake Titicaca (which disappeared in Mapnik this week, presumably as a result of a tagging error). To be sure I had got it right I sought out a similar feature set to examine the tags, and found this:

http://openstreetmap.org/?lat=60.873&lon=14.822&zoom=11&layers=B00FF

which is displayed correctly in both osmarender and mapnik. It seems that most of the tiles are now rendering correctly, but some of them are rendering inverted. I've had to mark a number of tiles as blank land or blank sea too (via informationfreeway.org, I presume pressing 'l' or 's' at zoom 12 has the desired effect?). I can't see how it can be an error in the track that marks the island, as part of it is rendered correctly. Any clues as to what's gone wrong? (The osmarender tiles at zoom <12 are all messed up in this area, I'm just concentrating on z>=12 for now).

Cheers,
Donald

When the winds of change start blowing, some people look for shelter. Others build windmills. 
-- Ancient Chinese Proverb.
http://donaldallwright.blogspot.com



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