Re: [OSM-talk] uStream .tv broadcast 2pm PST 5pm EST - geobase import

2009-01-26 Thread Craig Leat
Hi

Sam wrote:
 Correction:
 for step 8, the correct word is MERGE (not purge).
snip /snip
 -unfortunatly, the only program that can do this is ArchGIS (i think)
 -is there any opensource equivelant that can do this?

uDig has a light weight conflation tool:
http://udig.refractions.net/gallery/linecleaner/

The Jump Project has the Java Conflation Suite (JCS):
http://www.jump-project.org/assets/JUMP_Conflation_Whitepaper.pdf

Cheers

Craig

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Re: [OSM-talk] uStream .tv broadcast 2pm PST 5pm EST - geobase import

2009-01-26 Thread Greg Troxel

Russ Nelson r...@cloudmade.com writes:

 On Jan 25, 2009, at 7:17 AM, Greg Troxel wrote:
  So I think this is really 3-way merge
 process, and there needs to be something that looks at each item in  
 the
 new dump, finds any previous import, and checks if it has been  
 modified.
 Bulk imports should always be done under a user dedicated for that one  
 purpose.  Bulk re-imports should only replace data if it still belongs  

That's a good notion, but it doesn't seem to be true for the MassGIS
data.

 to the dedicated user.  If somebody has edited it, then it belongs to  
 them now, and won't be touched.  Then, we should rely on maplint to  

I should set up JOSM, but potlatch doesn't seem to show the last writer.
Perhaps it should.

 look at the tags, and mark data which has duplicate import tags  
 (presuming that the user who edited it didn't delete the import  
 tags).  Otherwise, the problem devolves to duplicate data entry, which  
 is a problem we need to solve regardless (e.g. Poughkeepsie, NY got  
 mapped, and then overlaid by the TIGER import).

Sure, but I think subsequent imports of upstream sources is a simpler
problem.


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Re: [OSM-talk] uStream .tv broadcast 2pm PST 5pm EST - geobase import

2009-01-26 Thread Shaun McDonald

On 26 Jan 2009, at 14:07, Greg Troxel wrote:


 Russ Nelson r...@cloudmade.com writes:


 to the dedicated user.  If somebody has edited it, then it belongs to
 them now, and won't be touched.  Then, we should rely on maplint to

 I should set up JOSM, but potlatch doesn't seem to show the last  
 writer.
 Perhaps it should.

After selecting the way/node hit the H key on your keyboard, and it  
will pop up a history window, including date and user.


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Re: [OSM-talk] uStream .tv broadcast 2pm PST 5pm EST - geobase import

2009-01-25 Thread Greg Troxel

  For government/bulk imports -where we know that updates are available;
  how is it dealt with?

I was just thinking about this; there is a lot of MassGIS data now, and
some of it is wrong (wrong location, streets that don't actually exist),
although 99.8% of it seems very good.  I've edited classification of
highway, and added names.  So I think this is really 3-way merge
process, and there needs to be something that looks at each item in the
new dump, finds any previous import, and checks if it has been modified.
If not, apply the new change to the object, and if so, it's harder.
That doesn't sound like what you are proposing, but I didn't quite
follow.



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Re: [OSM-talk] uStream .tv broadcast 2pm PST 5pm EST - geobase import

2009-01-25 Thread Russ Nelson

On Jan 25, 2009, at 7:17 AM, Greg Troxel wrote:
  So I think this is really 3-way merge
 process, and there needs to be something that looks at each item in  
 the
 new dump, finds any previous import, and checks if it has been  
 modified.
Bulk imports should always be done under a user dedicated for that one  
purpose.  Bulk re-imports should only replace data if it still belongs  
to the dedicated user.  If somebody has edited it, then it belongs to  
them now, and won't be touched.  Then, we should rely on maplint to  
look at the tags, and mark data which has duplicate import tags  
(presuming that the user who edited it didn't delete the import  
tags).  Otherwise, the problem devolves to duplicate data entry, which  
is a problem we need to solve regardless (e.g. Poughkeepsie, NY got  
mapped, and then overlaid by the TIGER import).

--
Russ Nelson - http://community.cloudmade.com/blog - 
http://wiki.openstreetmap.org/User:RussNelson
r...@cloudmade.com - http://openstreetmap.org/user/RussNelson


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Re: [OSM-talk] uStream .tv broadcast 2pm PST 5pm EST - geobase import

2009-01-24 Thread Thomas Wood
2009/1/24 Sam Vekemans acrosscanadatra...@gmail.com:
 In light of France getting the OK for post codes; Canada might also,
 so there needs to be a way to accomidate it. We should be able to
 update the geobase import talk page  post the unanswered questions.

I thought it was Iceland with the postcodes, but France with the
official land registry maps, or something similar...

-- 
Regards,
Thomas Wood
(Edgemaster)

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Re: [OSM-talk] uStream .tv broadcast 2pm PST 5pm EST - geobase import

2009-01-24 Thread Yann Coupin
I dunno about Iceland, but you're right about France, it is the  
official land registry map that we got access to.

Yann

Le 24 janv. 09 à 23:30, Thomas Wood a écrit :

 2009/1/24 Sam Vekemans acrosscanadatra...@gmail.com:
 In light of France getting the OK for post codes; Canada might also,
 so there needs to be a way to accomidate it. We should be able to
 update the geobase import talk page  post the unanswered questions.

 I thought it was Iceland with the postcodes, but France with the
 official land registry maps, or something similar...

 -- 
 Regards,
 Thomas Wood
 (Edgemaster)

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Re: [OSM-talk] uStream .tv broadcast 2pm PST 5pm EST - geobase import

2009-01-24 Thread Sam Vekemans
Thanks, ya your right :)
The show went good (IMO) as the question is now more apparent.

For government/bulk imports -where we know that updates are available;
how is it dealt with?

The solution is this IMO:
  1- take the latest OSM Data, as a file; the exact size area of the
shape file to be imported.

2 - extract  only the possable tags (if any) that are showing the same
info as you want to have the new data shown as.

3 -convert the OSM to shape file

4 - make a backup of OSM file

5 -remove those same selected osm data OUT OF the osm database.

6 - using whatever postGIS program, look at both shape files, and see
just how the 2 match up.

7 add osm tags the the whole thing.

8 use one of the bug finder tools to  find duplicate data, and PERGE
all the info together.

9 the result is a file that contains; new imported data with osm tags,
untouched osm data (that no match was available), and perged data (osm
 imported)

10 convert the file to OSM and upload to OSM.

Please poke fun at the steps, :)

cheers,
Sam

On 1/24/09, Thomas Wood grand.edgemas...@gmail.com wrote:
 2009/1/24 Sam Vekemans acrosscanadatra...@gmail.com:
 In light of France getting the OK for post codes; Canada might also,
 so there needs to be a way to accomidate it. We should be able to
 update the geobase import talk page  post the unanswered questions.

 I thought it was Iceland with the postcodes, but France with the
 official land registry maps, or something similar...

 --
 Regards,
 Thomas Wood
 (Edgemaster)


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