Hmmm... I think we should treat this like any other import (like the recently-discussed Palawan data).<br><br>In lots of areas, the coastline has already been adjusted from the SRTM-based coastline before using the Landsat imagery in Yahoo. PGS is based from Landsat so in these areas, the PGS might not be significantly better.<br>
<br>In other areas, the jagged SRTM-based coastline still exists so PGS would be better. While in other areas, the coastline has been traced using the high-resolution satellite imagery in Yahoo! (for Metro Manila and Davao) so PGS would definitely by worse.<br>
<br>I think we should convert this to GPX and let people using JOSM and Merkaartor manually import/replace. (I don't think this GPX file should be included in the main OSM GPX database.)<br><br><br><div class="gmail_quote">
On Tue, Jun 9, 2009 at 9:31 AM, maning sambale <span dir="ltr"><<a href="mailto:emmanuel.sambale@gmail.com">emmanuel.sambale@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
How do we know which one is pre_pgs and pgs_import?<br>
AFAIK, most of Luzon mainland has better coastline than PGS.<br>
Especially around Metro Manila and and the west coast.<br>
<a href="http://www.openstreetmap.org/?lat=16.2067&lon=120.042&zoom=14&layers=B000FTFT" target="_blank">http://www.openstreetmap.org/?lat=16.2067&lon=120.042&zoom=14&layers=B000FTFT</a><br>
<br>
Thanks!<br>
<div><div></div><div class="h5"><br>
<br>
On Tue, Jun 9, 2009 at 9:23 AM, Ian Haylock<<a href="mailto:haylocki@yahoo.co.uk">haylocki@yahoo.co.uk</a>> wrote:<br>
> Hi,<br>
><br>
> I have the PGS coastline import just about ready to upload.<br>
><br>
> My suggestions about doing this are :<br>
><br>
> 1 Everyone stops working on the coastline until the upload is complete.<br>
><br>
> 2 When Cloudmade does its next update for the Philippines. Download this<br>
> file and tag all the current coastline data with a tag such as<br>
> "note:pre_pgs_import_2009".<br>
><br>
> 3 Tag the new PGS coastline with "source:pgs_import_2009"<br>
><br>
> 4 Upload the PGS coastline.<br>
><br>
> Cheers, Ian<br>
><br>
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><br>
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<br>
--<br>
cheers,<br>
maning<br>
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