[talk-ph] Correcting Philippine coastlines

maning sambale emmanuel.sambale at gmail.com
Fri Sep 19 07:32:55 BST 2008


>
> The script coast_josm.pl produces the same output, as the code used on the
> web page is based on the coast_josm.pl script.
>
> I think using either of the above methods would be a lot quicker than
> tracing all the coastline by hand, and produce a pretty accurate coastline.
>
> I've uploaded the data for the island, here's a link to the area :
>
> http://www.informationfreeway.org/?lat=19.318031414701732&lon=121.45548518653908&zoom=12&layers=B000F000F

Calayan Island! Home of the endemic newly discovered bird Calayan
Rail.  Yeah that looks nice.  Please update as many islands as you
can.  We just need to be careful with uploading large areas.  We might
break into other contributor's work.  AFAIK, metro manila coast has
been edited already from Yahoo!, so the PGS would be useless there, as
well as in Davao.

cheers,
maning

> I'll delete the original coastline, and fix the new one when you've had a
> look.
>
> Cheers, Ian
>
> --- On Fri, 19/9/08, maning sambale <emmanuel.sambale at gmail.com> wrote:
>
> From: maning sambale <emmanuel.sambale at gmail.com>
> Subject: Re: [talk-ph] Correcting Philippine coastlines
> To: talk-ph at openstreetmap.org
> Date: Friday, 19 September, 2008, 2:09 AM
>
> Thanks for the lakewalker tip!  I didn't get it to work before, but
> now it's working quite fine for the lakes I'm currently processing
>
> On Thu, Sep 18, 2008 at 9:19 PM, Ian Haylock
>  <haylocki at yahoo.co.uk>
> wrote:
>> Hi, also just remembered when I was fixing the coastlines last year, some
> of
>> it was much better quality than the srtm coastline as it used the Almien
>> Coastlines script.
>>
>>
> http://wiki.openstreetmap.org/index.php/Almien_coastlines_(PGS)#Identifying_coastline_data
>>
>> I was hoping someone would finish uploading all the coastline. Don't
> know if
>> the reason it hasn't been, is because the data doesn't cover the
> whole of
>> the Philippines .
> It actually has complete coverage for the Philippines, give a few
> incomplete segments.  If we want to continue importing them, we need
> to inventory which areas of the SRTM coastline are already edited in
> detail.  From experience, the PGS coastline has a couple of errors and
> manual edits are still needed.  The source of the PGS coastline by the
> way is also Landsat images.
>
> Feel free to
>  test import in some area and lets see how it goes in
> terms of efficient workflow and effort.
>
>
> cheers,
> maning
>
>
>> Cheers, Ian
>>
>> --- On Thu, 18/9/08, maning sambale <emmanuel.sambale at gmail.com>
> wrote:
>>
>> From: maning sambale <emmanuel.sambale at gmail.com>
>> Subject: [talk-ph] Correcting Philippine coastlines
>> To: talk-ph at openstreetmap.org
>> Date: Thursday, 18 September, 2008, 2:05 AM
>>
>> Hi,
>>
>> I am documenting my progress in editing island coastlines.  Please add
>> more in the list.
>> We have more then  7,100 to correct :)
>>
>>
> http://wiki.openstreetmap.org/index.php/OSM_Philippines_Data_Import#Coastline_Corrections
>>
>>
>> cheers,
>> maning
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>
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-- 
|---------|----------------------------------------------------------|
| __.-._ |"Ohhh. Great warrior. Wars not make one great." -Yoda |
| '-._"7' |"Freedom is still the most radical idea of all" -N.Branden|
| /'.-c |Linux registered user #402901, http://counter.li.org/ |
| | /T |http://esambale.wikispaces.com|
| _)_/LI
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