Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]
On Tue, Apr 29, 2008 at 2:19 AM, Neil Penman <[EMAIL PROTECTED]> wrote: > Is there a history to the flooding of large land > masses at high zoom? > Timor and Indonesian archipelago also disappear under > water when you try > and get too close. Was this always the case? I've > added the coastline > for Timor in now so hopefully that will fix this > particular problem . > Is anyone looking at the rest of Indonesia? For a long time we used PGS directly for coastlines at highzoom. This meant we didn't have blue sea at highzoom, everything looked like land. So I wrote the coastline checker so we had a good view of what coastline was uploaded already and whether it was in good state. In short order the US, Africa, Australia and most of Asia were uploaded and fixed. Since we like to have our oceans blue we decided to switch. There was plenty of warning and plenty of encouragement, but in the end it was decided not to wait until every last island was uploaded. So no, it's only been like this for a few months. On the plus side you can fix it yourself. Have a nice day, -- Martijn van Oosterhout <[EMAIL PROTECTED]> http://svana.org/kleptog/ ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]
Is there a history to the flooding of large land masses at high zoom? Timor and Indonesian archipelago also disappear under water when you try and get too close. Was this always the case? I've added the coastline for Timor in now so hopefully that will fix this particular problem . Is anyone looking at the rest of Indonesia? Regards Neil Richard Fairhurst wrote: > David Groom wrote: > > >> It would be nice if it were easier to roll back peoples changes through :) >> > > Happily: > http://wiki.openstreetmap.org/index.php/Monitoring_and_Rollback_Hack-a-thon_London > > is this weekend :) > > cheers > Richard > > > ___ > talk mailing list > talk@openstreetmap.org > http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk > > > > Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]
David Groom wrote: > It would be nice if it were easier to roll back peoples changes through :) Happily: http://wiki.openstreetmap.org/index.php/Monitoring_and_Rollback_Hack-a-thon_London is this weekend :) cheers Richard ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]
- Original Message - From: "David Groom" <[EMAIL PROTECTED]> To: Sent: Monday, April 28, 2008 10:42 AM Subject: Re: [OSM-talk] [Fwd: Re: Bangladesh under the water] >> - Original Message - >> From: "Francois De Ryckel" <[EMAIL PROTECTED]> >> To: "David Groom" <[EMAIL PROTECTED]> >> Cc: >> Sent: Monday, April 28, 2008 4:21 AM >> Subject: Re: [OSM-talk] [Fwd: Re: Bangladesh under the water] >> >> >> I found the script paul created? >> >> http://www.lenz-online.de/divers/osm/ >> >> http://wiki.openstreetmap.org/index.php/Running_the_coastline_upload >> >> can't we just use it to re-load the missing data? >> >> Francois >> > > It's not quite that simple. The area in question is quite a complex river > delta, and it needed quite a bit of manual correction to get the coastline > correct. > > You'd have to: > > 1) run the coastline script to generate data > 2) compare the generated data from (1) to the partial data already in the > database > 3) delete the unused nodes which have been left over when someone deleted > the coastline ways > 4) fix the day generated in (1) so it was in the correct direction in all > cases > 5) upload the new data. > > It seems a long process to go through when the correct data is somewhere > in > the database if only it could be extracted. > > David > I don't think it will take too long to do the above ( a couple of hours maybe at most), so I'll undertake to do it sometime over the next day or so. It would be nice if it were easier to roll back peoples changes through :) David >> >> David Groom wrote: >>> >>> - Original Message - >>> From: "Jon Burgess" <[EMAIL PROTECTED]> >>> To: "David Groom" <[EMAIL PROTECTED]> >>> Cc: >>> Sent: Sunday, April 27, 2008 4:18 PM >>> Subject: Re: [OSM-talk] [Fwd: Re: Bangladesh under the water] >>> >>> >>>> >>>> On Sun, 2008-04-27 at 15:32 +0100, David Groom wrote: >>>>> >> http://tile.openstreetmap.nl/coastlines.html?zoom=8&lat=23.43505&lon=89.95194&layers=B00T >>>>> >> >>>>> >> Any ways to restore the square missing? >>>>> >> >>>>> > These are due to errors in the coastline ways. The red lines and >>>>> > circles >>>>> > highlight the location of the errors which will need to be fixed by >>>>> > editing the ways. >>>>> > >>>>> >>>>> When I originally imported the coastline in that part of the world I >>>>> fixed >>>>> it all. >>>>> >>>>> Unfortuntealtey it seems someone has now deleted quite a few coastline >>>>> ways >>>>> in that area leading to an incomplete coastline, and the errors being >>>>> reported. >>>>> >>>>> The correct ways should I guess still be in the history , but I'm not >>>>> sure >>>>> how to retrieve it. >>>> >>>> I've got a coastline shapefile from 2008-01-28 and that does indeed >>>> show >>>> that area as being nicely complete. I can see lots of disconnected >>>> nodes >>>> in the area now but the Potlatch 'Undelete' does not show any ways to >>>> be >>>> recovered. >>>> >>>> Does the upload script create a log of the way IDs and if so, do you >>>> have a copy still? >>> >>> I used the coast_josm.pl script to create a local osm file, edited that >>> to >>> correct coastline errors, and then uploaded from within JOSM. >>> >>> I may haved saved the file after upload, but I doubt it. I'll have a >>> look >>> though. >>> >>> David >>> >>> >>>> >>>> I guess we may need to search an older planet dump (or diff files) to >>>> find and resurrect the ways. >>>> >>>> Jon ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]
> - Original Message - > From: "Francois De Ryckel" <[EMAIL PROTECTED]> > To: "David Groom" <[EMAIL PROTECTED]> > Cc: > Sent: Monday, April 28, 2008 4:21 AM > Subject: Re: [OSM-talk] [Fwd: Re: Bangladesh under the water] > > > I found the script paul created? > > http://www.lenz-online.de/divers/osm/ > > http://wiki.openstreetmap.org/index.php/Running_the_coastline_upload > > can't we just use it to re-load the missing data? > > Francois > It's not quite that simple. The area in question is quite a complex river delta, and it needed quite a bit of manual correction to get the coastline correct. You'd have to: 1) run the coastline script to generate data 2) compare the generated data from (1) to the partial data already in the database 3) delete the unused nodes which have been left over when someone deleted the coastline ways 4) fix the day generated in (1) so it was in the correct direction in all cases 5) upload the new data. It seems a long process to go through when the correct data is somewhere in the database if only it could be extracted. David > > David Groom wrote: >> >> - Original Message - >> From: "Jon Burgess" <[EMAIL PROTECTED]> >> To: "David Groom" <[EMAIL PROTECTED]> >> Cc: >> Sent: Sunday, April 27, 2008 4:18 PM >> Subject: Re: [OSM-talk] [Fwd: Re: Bangladesh under the water] >> >> >>> >>> On Sun, 2008-04-27 at 15:32 +0100, David Groom wrote: >>>> >> http://tile.openstreetmap.nl/coastlines.html?zoom=8&lat=23.43505&lon=89.95194&layers=B00T >>>> >> >>>> >> Any ways to restore the square missing? >>>> >> >>>> > These are due to errors in the coastline ways. The red lines and >>>> > circles >>>> > highlight the location of the errors which will need to be fixed by >>>> > editing the ways. >>>> > >>>> >>>> When I originally imported the coastline in that part of the world I >>>> fixed >>>> it all. >>>> >>>> Unfortuntealtey it seems someone has now deleted quite a few coastline >>>> ways >>>> in that area leading to an incomplete coastline, and the errors being >>>> reported. >>>> >>>> The correct ways should I guess still be in the history , but I'm not >>>> sure >>>> how to retrieve it. >>> >>> I've got a coastline shapefile from 2008-01-28 and that does indeed show >>> that area as being nicely complete. I can see lots of disconnected nodes >>> in the area now but the Potlatch 'Undelete' does not show any ways to be >>> recovered. >>> >>> Does the upload script create a log of the way IDs and if so, do you >>> have a copy still? >> >> I used the coast_josm.pl script to create a local osm file, edited that >> to >> correct coastline errors, and then uploaded from within JOSM. >> >> I may haved saved the file after upload, but I doubt it. I'll have a look >> though. >> >> David >> >> >>> >>> I guess we may need to search an older planet dump (or diff files) to >>> find and resurrect the ways. >>> >>> Jon >>> ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]
I found the script paul created? http://www.lenz-online.de/divers/osm/ http://wiki.openstreetmap.org/index.php/Running_the_coastline_upload can't we just use it to re-load the missing data? Francois David Groom wrote: > > - Original Message - > From: "Jon Burgess" <[EMAIL PROTECTED]> > To: "David Groom" <[EMAIL PROTECTED]> > Cc: > Sent: Sunday, April 27, 2008 4:18 PM > Subject: Re: [OSM-talk] [Fwd: Re: Bangladesh under the water] > > >> >> On Sun, 2008-04-27 at 15:32 +0100, David Groom wrote: >>> >> http://tile.openstreetmap.nl/coastlines.html?zoom=8&lat=23.43505&lon=89.95194&layers=B00T >>> >> >>> >> Any ways to restore the square missing? >>> >> >>> > These are due to errors in the coastline ways. The red lines and >>> > circles >>> > highlight the location of the errors which will need to be fixed by >>> > editing the ways. >>> > >>> >>> When I originally imported the coastline in that part of the world I >>> fixed >>> it all. >>> >>> Unfortuntealtey it seems someone has now deleted quite a few coastline >>> ways >>> in that area leading to an incomplete coastline, and the errors being >>> reported. >>> >>> The correct ways should I guess still be in the history , but I'm not >>> sure >>> how to retrieve it. >> >> I've got a coastline shapefile from 2008-01-28 and that does indeed show >> that area as being nicely complete. I can see lots of disconnected nodes >> in the area now but the Potlatch 'Undelete' does not show any ways to be >> recovered. >> >> Does the upload script create a log of the way IDs and if so, do you >> have a copy still? > > I used the coast_josm.pl script to create a local osm file, edited that to > correct coastline errors, and then uploaded from within JOSM. > > I may haved saved the file after upload, but I doubt it. I'll have a look > though. > > David > > >> >> I guess we may need to search an older planet dump (or diff files) to >> find and resurrect the ways. >> >> Jon >> >> >> > > > > ___ > talk mailing list > talk@openstreetmap.org > http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk > François de Ryckel ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]
- Original Message - From: "Jon Burgess" <[EMAIL PROTECTED]> To: "David Groom" <[EMAIL PROTECTED]> Cc: Sent: Sunday, April 27, 2008 4:18 PM Subject: Re: [OSM-talk] [Fwd: Re: Bangladesh under the water] > > On Sun, 2008-04-27 at 15:32 +0100, David Groom wrote: >> >> http://tile.openstreetmap.nl/coastlines.html?zoom=8&lat=23.43505&lon=89.95194&layers=B00T >> >> >> >> Any ways to restore the square missing? >> >> >> > These are due to errors in the coastline ways. The red lines and >> > circles >> > highlight the location of the errors which will need to be fixed by >> > editing the ways. >> > >> >> When I originally imported the coastline in that part of the world I >> fixed >> it all. >> >> Unfortuntealtey it seems someone has now deleted quite a few coastline >> ways >> in that area leading to an incomplete coastline, and the errors being >> reported. >> >> The correct ways should I guess still be in the history , but I'm not >> sure >> how to retrieve it. > > I've got a coastline shapefile from 2008-01-28 and that does indeed show > that area as being nicely complete. I can see lots of disconnected nodes > in the area now but the Potlatch 'Undelete' does not show any ways to be > recovered. > > Does the upload script create a log of the way IDs and if so, do you > have a copy still? I used the coast_josm.pl script to create a local osm file, edited that to correct coastline errors, and then uploaded from within JOSM. I may haved saved the file after upload, but I doubt it. I'll have a look though. David > > I guess we may need to search an older planet dump (or diff files) to > find and resurrect the ways. > > Jon > > > ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]
On Sun, 2008-04-27 at 15:32 +0100, David Groom wrote: > >> http://tile.openstreetmap.nl/coastlines.html?zoom=8&lat=23.43505&lon=89.95194&layers=B00T > >> > >> Any ways to restore the square missing? > >> > > These are due to errors in the coastline ways. The red lines and circles > > highlight the location of the errors which will need to be fixed by > > editing the ways. > > > > When I originally imported the coastline in that part of the world I fixed > it all. > > Unfortuntealtey it seems someone has now deleted quite a few coastline ways > in that area leading to an incomplete coastline, and the errors being > reported. > > The correct ways should I guess still be in the history , but I'm not sure > how to retrieve it. I've got a coastline shapefile from 2008-01-28 and that does indeed show that area as being nicely complete. I can see lots of disconnected nodes in the area now but the Potlatch 'Undelete' does not show any ways to be recovered. Does the upload script create a log of the way IDs and if so, do you have a copy still? I guess we may need to search an older planet dump (or diff files) to find and resurrect the ways. Jon ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]
blank - Original Message - From: "Jon Burgess" <[EMAIL PROTECTED]> To: "Francois De Ryckel" <[EMAIL PROTECTED]> Cc: Sent: Sunday, April 27, 2008 10:36 AM Subject: Re: [OSM-talk] [Fwd: Re: Bangladesh under the water] > > On Sun, 2008-04-27 at 07:24 +0600, Francois De Ryckel wrote: >> We have a similar issue in Bangaldesh >> >> http://tile.openstreetmap.nl/coastlines.html?zoom=8&lat=23.43505&lon=89.95194&layers=B00T >> >> Any ways to restore the square missing? >> > These are due to errors in the coastline ways. The red lines and circles > highlight the location of the errors which will need to be fixed by > editing the ways. > When I originally imported the coastline in that part of the world I fixed it all. Unfortuntealtey it seems someone has now deleted quite a few coastline ways in that area leading to an incomplete coastline, and the errors being reported. The correct ways should I guess still be in the history , but I'm not sure how to retrieve it. David > Jon > > > > ___ > talk mailing list > talk@openstreetmap.org > http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk > ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]
On Sun, 2008-04-27 at 07:24 +0600, Francois De Ryckel wrote: > We have a similar issue in Bangaldesh > > http://tile.openstreetmap.nl/coastlines.html?zoom=8&lat=23.43505&lon=89.95194&layers=B00T > > Any ways to restore the square missing? > These are due to errors in the coastline ways. The red lines and circles highlight the location of the errors which will need to be fixed by editing the ways. Jon ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
[OSM-talk] [Fwd: Re: Bangladesh under the water]
We have a similar issue in Bangaldesh http://tile.openstreetmap.nl/coastlines.html?zoom=8&lat=23.43505&lon=89.95194&layers=B00T Any ways to restore the square missing? Francois On Thu, 2008-04-24 at 18:45 +0100, Jon Burgess wrote: > On Thu, 2008-04-24 at 15:01 +0300, Lauri Hahne wrote: > > > > > > 2008/4/24 Juan Lucas Dominguez Rubio <[EMAIL PROTECTED]>: > > Hi, > > > > In Mapnik zooms 7, 8 and 9, most of the isle of Cuba is under > > the water. Is there anything I can do to fix this? Should I > > provide a hand-made shapefile or something? Thanks. > > > > Lucas > > > > > > > > It looks ok at http://tile.openstreetmap.nl/coastlines.html so maybe > > you should just wait till the mapnik shapefiles are updated. > > > It is not quite as simple as that. Zoom 7 - 9 use a shapefile derived > from vmap0 that is not normally updated. > > This weeks Mapnik tiles should finish rendering tomorrow. This weekend > I'll try updating the style to use the OSM derived shapefiles for zoom 7 > + and re-render the 7 - 9 tiles. > It may be too slow to render the tiles with these detailed shapefiles. > If so, we may need to perform some simplification on the shapefile to > optimise the rendering performance. I generated a replacement shapefile for zoom 7-9[1] and rendered these tiles again. I'm tempted to use this shapefile for z6 or even z5 soon. Jon [1] Turns out this is quite easy to do with postgis: $ shp2pgsql -s 900913 -I -g way processed_p shoreline_a | psql -q gis ... $ pgsql2shp -f shoreline_300 gis "select simplify(way,300) as the_geom, gid as id from shoreline_a where area(simplify(way,300)) > 0" ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk François de Ryckel ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk