[OSM-talk] Coastlines (was: Question about automatic data upload)

[OJW]

On Tuesday 12 September 2006 01:35, Thomas Walraet wrote:
> And about "Almien coastline import", the whole planet is going to be
> uploaded or do we have to request areas we're interested in ?

OK, better talk about this one then, if people are waiting on me:

(1) I'm doing uploads once every few days. 
(2) It takes about one evening or overnight to upload a 1x1 degree square (of 
scottish complexity)
(3) I'm doing the UK.  Dutch might be doing something with Denmark. If people 
request areas outside that I'm doing them, but I've hesitated to spend my 
PC's time uploading a foreign area that nobody will check, and nobody needs 
for their maps.  Open to suggestions, of course....
(4) There was a big debate about shifting data a few metres in various 
directions - I thought some people were still of the opinion that we 
shouldn't upload an area until there are local OSM'ers doing clifftop+beach 
walks to verify the data (and I never did find out if it was acceptable to 
upload data without these corrections, nor get any theories on what 
correction might be valid over large areas)
(5) If I can get the script working on MacOS-X we might get faster uploads as 
the Mac is quiet enough for me to sleep while it's working.  I've kind of 
delayed that work, as the Mapyrus renderer seems more interesting.
(6) It would probably be useful if one of the Norwegians did the upload for 
their area, as it will be a while before I finish Britain, and you'll know 
the local people who can check it's accuracy.
(7) The latest script reports its status to my web-page*, using a password to 
stop random people modifying the page. So email me for that script+password 
if you want to upload, rather than using the script from wiki/svn. (and yes, 
you can have a copy of that webpage source if you want to host a version 
showing your own region)
* http://almien.co.uk/OSM/CoastlineUpload/


Regards

OJW


p.s. sorry about the bridge - yes you'll need to manually correct any bridges 
more than a few metres wide, as the satellite photos will show them as "not 
blue, and not at 0 elevation, therefore land"

Pretty cool that things as small as the bridge are showing-up on coastline 
data though... and a nice check against GPS data where people have driven 
over the bridge.

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