[talk-ph] better ways to coordinate coastline mapping?
Eugene Alvin Villar
seav80 at gmail.com
Sun Jul 4 07:23:24 BST 2010
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 somewhere.
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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