[talk-ph] better ways to coordinate coastline mapping?
Eugene Alvin Villar
seav80 at gmail.com
Sun Jul 4 07:26:00 BST 2010
Oh BTW, I don't think we should do this automatically. Human input is still
needed just to quickly verify that the PGS coastline does indeed match the
On Sun, Jul 4, 2010 at 2:23 PM, Eugene Alvin Villar <seav80 at gmail.com>wrote:
> Hi guys,
> Once we are done with the large islands, the next step is to do the smaller
> islands. Ian Haylock has helpfully provided the PGS coastlines for the
> Philippines last year which he edited to combine ways. PGS itself was
> automatically generated by a software by analyzing the Landsat imagery.
> Unfortunately, Ian's file was hosted on a free file server and has now
> expired but I think several people on the mailing list managed to download
> I tried opening the file last year in Merkaartor but my old laptop couldn't
> handle the data. Now that I have a 4GB-RAM laptop, loading the data into
> Merkaartor is very manageable. Using the PGS coastlines is much, much easier
> than tracing Landsat by hand. I tried this with Homonhon Island and editing
> is way faster than actually uploading it. Hehehe. What I did was to
> delete the SRTM-derived coastline and replace it with the PGS
> I think uploading the PGS coastlines is better for the smaller islands.
> I'll see what we can do to have the PGS coastlines (55MB) uploaded
>  http://wiki.openstreetmap.org/wiki/Prototype_Global_Shoreline
>  http://lists.openstreetmap.org/pipermail/talk-ph/2009-June/001071.html
>  http://www.openstreetmap.org/browse/changeset/5129873
>  http://www.openstreetmap.org/browse/way/4327906
>  http://www.openstreetmap.org/browse/way/65592780
> On Thu, Jun 17, 2010 at 8:20 PM, maning sambale <
> emmanuel.sambale at gmail.com> wrote:
>> UPDATE. Only two islands from the top ten need some coasty coastline love.
>> Anyone working on Negros and Mainland Mindanao?
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