[talk-ph] Correcting Philippine coastlines

[maning sambale]

I have the whole OSM PH coastline from osmxapi.  If you want, I can
review the coastline and add a tag that can flag which segments can be
deleted.  If this is OK to everyone, I will do it.  Any suggestions?

cheers,
maning

PS.  This may take quite a while though.

On Sun, Sep 28, 2008 at 5:17 PM, Ian Haylock <haylocki at yahoo.co.uk> wrote:
> Hi, I have downloaded the whole coastline in two parts. This is because the
> Philippines is split between areas 11 and 23
>
> I tried editing the two areas using  JOSM, but it's just too slow :-(
>
> So I tried using osmosis to split the areas into smaller parts, but for some
> reason all that remained after the splitting was the nodes, and no ways.
>
> It is possible to use coast_josm.pl to make smaller sections of the
> Philippines, but I have not tried this yet.
>
> I think the best way to get the new coastline would be to fix it offline
> using josm, then upload it over the existing coastline. Maybe tag it with
> something like PGS2008 and FIXME so it's easy to find and select in josm.
>
> Maybe delete the original SRTM coastline first, but then you need to know
> all the places people have edited, but not removed the SRTM tag.
>
> Editing 7000 individually, instead of a bulk upload is going to take a
> loooong time.
>
> Cheers, Ian
>
> --- On Fri, 26/9/08, maning sambale <emmanuel.sambale at gmail.com> wrote:
>
> From: maning sambale <emmanuel.sambale at gmail.com>
> Subject: Re: [talk-ph] Correcting Philippine coastlines
> To: haylocki at yahoo.co.uk, talk-ph at openstreetmap.org
> Date: Friday, 26 September, 2008, 11:39 AM
>
> IanHaylock,
>
> I'm having problem downloading the the PGS coastline,  I'm trying for
> the whole country.  Any Ideas why?
>
> cheers,
> maning
>
>> found this page :
>>
>> http://www.lenz-online.de/divers/osm/
>>
>> this page provides a simple way to download the PGS coastline.
>>
>> I've tried downloading one of the Islands north of Luzon, using
> different
>> levels of simplification from 0
>  to 5. Even changing from level 0 to level
> 1
>> simplification almost halves the number of nodes in a way. So I would
>> suggest using level 0, and if simplification is required, then this can be
>> achieved using JOSM's simplification routine.
>
>



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