[OSM-talk] Blue sea tiles for tiles at home

[J.D. Schmidt]

Frederik Ramm skrev:
> David,
> 
>  > I cant work out what is wrong with the coastline ways / segments which
>  > might be causing the rendering problems at
>  > 
> http://www.informationfreeway.org/?lat=6588050.96444&lon=-111234.9613&zoom=12&layers=B000
> 
> That looks evil! Might be a problem in the algorithm too. I'll investigate.
> 
> Bye
> Frederik
> 

I've seen the same in Copenhagen, for tile 2191,1281, and found the reason.

That tile's bounding box includes 2 segments of a coastline at the lower 
  left corner of the tile. The algorithm then connects the top leftmost 
node of any coastline segment that might be there, to the bottom 
leftmost coastline segment, giving the render result seen in both 
Portsmouth and here in Copenhagen.

By manually moving the nodes of those two segments involved a bit 
further south, so they fall outside the tile's bounding box, the tile 
renders correctly.

I've called the mayor and asked her to get the building dept. of 
Copenhagen to fill in that part of the canal with concrete, so it 
reflects the map. ;)

Frederik, can you try and fix, so I can move the nodes back to their 
original position ?

J.D. "Dutch" Schmidt