Hi, To answer a few questions.
I have not yet uploaded the coastline data, so you would be able to tell which coastline is pre upload, because it would be tagged "note:pre_PGS_import_2009". This I believe will be searchable using JOSM. The coastlines I intend to upload have (hopefully) had all the ways in each island joined into one large way. (Wrote my own script to do this in the end). This means, if you have a nice hand drawn island, such as Boracy, all you have to do to delete the import, is select one way which is tagged "source:PGS_import_2009" and delete it. If you want to delete the original data, and not the imported data, all you will need to do is select all the ways which are tagged "note:pre_PGS_import_2009" and delete them. Comparing the PGS data with Landsat images, in some places it is very good, but for some reason, in other places it follows the foothills on islands, rather than the coastline. I could also delete the islands from the data that people don't want uploaded. This would also speed up the uploading time. As I only know the name of 3 Islands, you'll have to provide me with a link showing where the islands you don't want uploaded are. Of course we don't have to upload this data if it's not wanted, I have no problem letting people go on drawing the coastlines by hand. Cheers, Ian --- On Tue, 9/6/09, maning sambale <emmanuel.samb...@gmail.com> wrote: From: maning sambale <emmanuel.samb...@gmail.com> Subject: Re: [talk-ph] Philippines PGS coastline import To: "Ian Haylock" <haylo...@yahoo.co.uk>, "Openstreetmap Philippines" <talk-ph@openstreetmap.org> Date: Tuesday, 9 June, 2009, 5:07 AM I believe IanHaylock did a lot of offline editing (for duplicates and corrected coastlines) before this upload. He mentioned it to me off-list. @ IanHaylock, can you clarify this here? On Tue, Jun 9, 2009 at 11:49 AM, Eugene Alvin Villar<sea...@gmail.com> wrote: > Hmmm... I think we should treat this like any other import (like the > recently-discussed Palawan data). > > 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. > > 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. > > 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.) > > > On Tue, Jun 9, 2009 at 9:31 AM, maning sambale <emmanuel.samb...@gmail.com> > wrote: >> >> How do we know which one is pre_pgs and pgs_import? >> AFAIK, most of Luzon mainland has better coastline than PGS. >> Especially around Metro Manila and and the west coast. >> >> http://www.openstreetmap.org/?lat=16.2067&lon=120.042&zoom=14&layers=B000FTFT >> >> Thanks! >> >> >> On Tue, Jun 9, 2009 at 9:23 AM, Ian Haylock<haylo...@yahoo.co.uk> wrote: >> > Hi, >> > >> > I have the PGS coastline import just about ready to upload. >> > >> > My suggestions about doing this are : >> > >> > 1 Everyone stops working on the coastline until the upload is complete. >> > >> > 2 When Cloudmade does its next update for the Philippines. Download this >> > file and tag all the current coastline data with a tag such as >> > "note:pre_pgs_import_2009". >> > >> > 3 Tag the new PGS coastline with "source:pgs_import_2009" >> > >> > 4 Upload the PGS coastline. >> > >> > Cheers, Ian >> > >> > _______________________________________________ >> > talk-ph mailing list >> > talk-ph@openstreetmap.org >> > http://lists.openstreetmap.org/listinfo/talk-ph >> > >> > >> >> >> >> -- >> cheers, >> maning >> ------------------------------------------------------ >> "Freedom is still the most radical idea of all" -N.Branden >> wiki: http://esambale.wikispaces.com/ >> blog: http://epsg4253.wordpress.com/ >> ------------------------------------------------------ >> >> _______________________________________________ >> talk-ph mailing list >> talk-ph@openstreetmap.org >> http://lists.openstreetmap.org/listinfo/talk-ph > > > > -- > http://vaes9.codedgraphic.com > -- cheers, maning ------------------------------------------------------ "Freedom is still the most radical idea of all" -N.Branden wiki: http://esambale.wikispaces.com/ blog: http://epsg4253.wordpress.com/ ------------------------------------------------------
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