[Tilesathome] Blue tiles in Canada

[Maarten Deen]

Dirk Stöcker wrote:
> On Mon, 10 Nov 2008, Maarten Deen wrote:
> 
>> I noticed a lot of blue tiles in Canada. They seem to be placed on tiles where
>> oceantiles.dat says the tile is mixed, but no nodes are present (I checked a few
>> tiles).
>> Does anyone know where the info for these tiles in oceantiles.dat is coming
>> from? Specifically the region between (730,931) and (884,955).
> 
>>From reality. These mixed tiles represent coastlines not yet in OSM (or 
> errors, e.g. unclosed coastline). But I can't tell you who entered these.

I downloaded some Landsat images and it does look like a Swiss cheese in that 
region. I've added some lakes with the coastline checker, but it is going to be 
a tedious process.

> I added lots of coastline data at the weekend there and replaced wrong 
> stuff (the automatic coastlines in that area have bad quality.
> 
> Everyone helping me the remove the blue dots is welcome. Was a good idea 
> to make the mixed tiles blue - At least one person noticed it :-)

Yup. They look ugly. Need to fix them ;)

Maarten