[OSM-talk] Flooded tiles - RE: Västerås, Sweden

[Steve Chilton]

OK thanks for that. I will look out for re-renders happening there.
Just for the record New Zealand has a set of connected ways with natural=coastline for all of it's length, including major islands.

Cheers
STEVE

Steve Chilton, Learning Support Fellow
Learning and Technical Support Unit Manager
School of Health and Social Sciences
Middlesex University
phone/fax: 020 8411 5355
email: steve8 at mdx.ac.uk

Chair of the Society of Cartographers: http://www.soc.org.uk/

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http://www.port.ac.uk/special/soc/

Mind the (Map) Gap:
http://news.bbc.co.uk/1/hi/magazine/5413010.stm



-----Original Message-----
From: Jon Burgess [mailto:jburgess777 at googlemail.com] 
Sent: 22 October 2007 11:10
To: Steve Chilton
Cc: OSM-Talk Openstreetmap
Subject: Re: Flooded tiles - RE: [OSM-talk] Västerås, Sweden

On 22/10/2007, Steve Chilton <S.L.Chilton at mdx.ac.uk> wrote:
> What is the process for dealing with these flooded tiles in the mapnik layer?
> I would like to be able tidy up a whole bunch of occurrences in New Zealand, where I have been doing some mapping recently.
>
> http://www.openstreetmap.org/?lat=-41.10355285816537&lon=174.96737973557228&zoom=10&layers=B0F
>
> http://www.openstreetmap.org/?lat=-36.89102675458218&lon=174.83966369878166&zoom=10&layers=B0F
>

I think I already fixed those up when I did the Swedish updates. I
went around the map and fixed all the ones which looked obviously
incorrect. I fixed some around Russia, the US East coast and New
Zealand and the Shetland Isles.

The process is to take the shoreline_a.shp file and adapt the coverage
of sea/land squares using something like
http://www.vividsolutions.com/jump/. I then need a copy of these
shapefiles for the tile server. I should probably make the current
file available for download.

At some point we should be able to discard these shapefiles and rely
on the raw OSM natural=coastline data so I don't think we should spend
too much time making them completely accurate.

-- 
    Jon