Flooding in Turkey

[Kærast]

Hi,

There's been some flooding in Turkey for a while which nobody neither I
or katpatuka have been able to fix. It's at
<http://www.openstreetmap.org/?lat=37.913&lon=35.572&zoom=9&layers=B000FTFT>
and only appears on the Mapnik render at zoom level 9 and lower.

There are rivers passing through that area, though surely they haven't
just sprung a leak and flooded :-) and there is natural:water above and
below the affected area, but surely they would have flooded the area
they are in if there was a problem with them?

Can somebody tell us what's going wrong and help fix it please?

[Jon Burgess]

Post by Kærast
Hi,
There's been some flooding in Turkey for a while which nobody neither I
or katpatuka have been able to fix. It's at
<http://www.openstreetmap.org/?lat=37.913&lon=35.572&zoom=9&layers=B000FTFT>
and only appears on the Mapnik render at zoom level 9 and lower.
There are rivers passing through that area, though surely they haven't
just sprung a leak and flooded :-) and there is natural:water above and
below the affected area, but surely they would have flooded the area
they are in if there was a problem with them?
Can somebody tell us what's going wrong and help fix it please?

It appears to be a problem with the coastcheck utility used to generate
the lower zoom shapefiles on the mapnik layer. I'm currently trying to
run the tool with RESOLUTION set to 0 instead of 100 to see if that
fixes the issue.

Jon

[Jon Burgess]

Post by Jon Burgess

Post by Kærast
Hi,
There's been some flooding in Turkey for a while which nobody neither I
or katpatuka have been able to fix. It's at
<http://www.openstreetmap.org/?lat=37.913&lon=35.572&zoom=9&layers=B000FTFT>
and only appears on the Mapnik render at zoom level 9 and lower.
There are rivers passing through that area, though surely they haven't
just sprung a leak and flooded :-) and there is natural:water above and
below the affected area, but surely they would have flooded the area
they are in if there was a problem with them?
Can somebody tell us what's going wrong and help fix it please?

It appears to be a problem with the coastcheck utility used to generate
the lower zoom shapefiles on the mapnik layer. I'm currently trying to
run the tool with RESOLUTION set to 0 instead of 100 to see if that
fixes the issue.

This square in Turkey has now gone, as have several other bad squares
around the globe. You might need to refresh the tiles in your browser to
see the difference.

Jon