[OSM-talk] Tracing coastline by hand unnecessarily

[David Groom]

----- Original Message ----- 
From: "Andy Robinson (blackadder)" <blackadderajr at googlemail.com>
To: "'Martijn van Oosterhout'" <kleptog at gmail.com>; "'Talk Openstreetmap'" 
<talk at openstreetmap.org>
Sent: Tuesday, January 15, 2008 2:59 PM
Subject: Re: [OSM-talk] Tracing coastline by hand unnecessarily


>
>>-----Original Message-----
>>From: talk-bounces at openstreetmap.org [mailto:talk-
>>bounces at openstreetmap.org] On Behalf Of Martijn van Oosterhout
>>Sent: 15 January 2008 2:31 PM
>>To: Talk Openstreetmap
>>Subject: [OSM-talk] Tracing coastline by hand unnecessarily
>>
>>Hi,
>>
>>To my surprise this morning I opened up the coastline checker and saw
>>that south east asia had been done. Yay! I thought, until I noticed
>>the resolution was complete crap. Segment lengths of 50km not at all
>>uncommon. I'd be surprised if osmarender will display it properly at
>>all.
>>
>>To anyone thinking of doing this, please don't. We have reasonably
>>high quality coastline data, please use it. Use landsat to fix any
>>gaps. But segments like that just ask to be deleted and redone. This
>>kind of bad data is worse than none at all...
>>
>
> Rather than immediately belittle someone's effort, how about turn it into 
> an
> education opportunity. I'm sure there will be plenty of new users who have
> no idea that we have a coastline import process available at all. An 
> update
> on the import and adjustments might be handy right now.

see http://tile.openstreetmap.nl/coastlines.html for current coastline 
status

anyone who wants to help with the coastline import, but feels unable or 
unwilling to upload an area themselves, might want to consider cleaning up 
some of the errors shown on the above map.

David


>
> Cheers
>
> Andy
>
>