Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]

2008-04-29 Thread Martijn van Oosterhout
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/

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Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]

2008-04-28 Thread David Groom
 - Original Message - 
 From: Francois De Ryckel [EMAIL PROTECTED]
 To: David Groom [EMAIL PROTECTED]
 Cc: talk@openstreetmap.org
 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: talk@openstreetmap.org
 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=8lat=23.43505lon=89.95194layers=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




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Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]

2008-04-28 Thread David Groom

- Original Message - 
From: David Groom [EMAIL PROTECTED]
To: talk@openstreetmap.org
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: talk@openstreetmap.org
 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: talk@openstreetmap.org
 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=8lat=23.43505lon=89.95194layers=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



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Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]

2008-04-28 Thread Richard Fairhurst
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


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Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]

2008-04-28 Thread Neil Penman
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


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Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]

2008-04-27 Thread Jon Burgess

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=8lat=23.43505lon=89.95194layers=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



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Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]

2008-04-27 Thread David Groom

blank
- Original Message - 
From: Jon Burgess [EMAIL PROTECTED]
To: Francois De Ryckel [EMAIL PROTECTED]
Cc: talk@openstreetmap.org
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=8lat=23.43505lon=89.95194layers=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



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Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]

2008-04-27 Thread Jon Burgess

On Sun, 2008-04-27 at 15:32 +0100, David Groom wrote:
  http://tile.openstreetmap.nl/coastlines.html?zoom=8lat=23.43505lon=89.95194layers=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



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Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]

2008-04-27 Thread David Groom

- Original Message - 
From: Jon Burgess [EMAIL PROTECTED]
To: David Groom [EMAIL PROTECTED]
Cc: talk@openstreetmap.org
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=8lat=23.43505lon=89.95194layers=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


 



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Re: [OSM-talk] [Fwd: Re: Bangladesh under the water]

2008-04-27 Thread Francois De Ryckel
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: talk@openstreetmap.org
 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=8lat=23.43505lon=89.95194layers=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






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François de Ryckel


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