[Imports] Help request on Guatemala municipal boundaries

Tue Jun 20 09:48:55 UTC 2017

Hi Carlos:

I can't see any reference to the license of the data. The license needs 
to be compatible with the OSM ODbL license.

Have a nice day,

Rafael.

On 20/06/17 04:49, Tommy Bruce wrote:
> Excellent, this makes a lot of sense.  Just as a guess I would say most 
> people don't really care if you correct the "state" boundaries of the 
> country.  Definitely include that picture on your wiki page when you 
> make one it really shows what you are planning to do.
> 
> Are you familiar with using multi-polygons?
> 
> For this project you should definitely use multi-polygons to draw your 
> boundaries.
> 
> Also do you have any idea where the data on Open Street Map comes from? 
> Is it out of date or is it just wrong? That might help with explaining 
> why it is a good idea to change the map if you can find a good 
> explanation of where the old data came from for example if it is just 
> out of date.
> 
> Sent from my iPhone
> 
> On Jun 19, 2017, at 17:26, CARLOS A. DUARTE <chduartegeo at gmail.com 
> <mailto:chduartegeo at gmail.com>> wrote:
> 
>> Dear Tommy,
>>
>> Thank you so much for your quick and useful reply,
>>
>> Here are my answers to some of your question:
>>
>> Could you be more specific with what Municipal boundaries includes?  
>> Are we talking about just town and city borders? or state and national 
>> borders as well?
>> According to Guatemala's political and administrative division, the 
>> country is divided into 22 "Departamentos" (similar to States in the 
>> US), and each Departamento is divided into "Municipios" (similar to 
>> Counties in the US).  What I'm proposing is to update the existing 
>> Municipio boundaries with the polygons from the oficial shapefile 
>> layer. Updating Departamento boundaries could be done also.
>>
>> How current is your data?  And do you have any plane for continuing 
>> imports in the future as new versions of the data comes out?
>> The data I have is up to date. I got it last week from Instituto 
>> Geográfico Nacional, which is the Government institution in charge of 
>> national cartography in Guatemala.  The municipal boundary layer is 
>> the last one published, in 2016, and it comes at a scale of 1:50,000.  
>> This layer is updated every time a municipio "splits" into two 
>> different municipios.  And yes, I would be happy to update it when it 
>> changes.
>>
>> Also Carlos do you have your own OSM user account?
>> Yes, I go by the username CARLOS DUARTE CARRANZA
>>
>> I'll try to follow your recomendations on finding active users in 
>> Guatemala, as well as creating the osm.wiki page.
>>
>> For you to have an idea of what I mean when I say that many existing 
>> polygons in OSM are different than in the official layer, the 
>> following image shows the existing OSM boundaries in purple, while 
>> "Official" boundaries are shown in green.  Please note that there are 
>> missing polygons in the existing OSM data.
>>
>>
>> <image.png>
>>
>> Thats where I am now...
>>
>> Any further guidance is welcome and thanks for your help!
>>
>> Carlos
>>
>>
>>
>>
>>
>>
>> 2017-06-19 17:40 GMT-06:00 Tommy Bruce <sunfishtommy at gmail.com 
>> <mailto:sunfishtommy at gmail.com>>:
>>
>>     Hello,  My name is Tommy I go by the username Sunfishtommy
>>
>>     It looks like you have done an excellent job so far at getting
>>     high quality data and taking the time to compare that data and
>>     talk to the community.  Thank you for following the steps to do an
>>     import.
>>
>>     I have made many contributions in the northwestern part of
>>     Guatemala. In this area
>>     (http://www.openstreetmap.org/#map=11/16.0115/-90.6499
>>     <http://www.openstreetmap.org/#map=11/16.0115/-90.6499>).  Most of
>>     the town boundaries I drew in that area were just marking where
>>     there were houses and where there were not.  In this area at least
>>     I could see replacing these boundaries with official ones to be
>>     beneficial.
>>
>>     Could you be more specific with what Municipal boundaries
>>     includes?  Are we talking about just town and city borders? or
>>     state and national borders as well?
>>
>>     How current is your data?  And do you have any plane for
>>     continuing imports in the future as new versions of the data comes
>>     out?
>>
>>     You can find some helpful info here under the import guidelines
>>     page (https://wiki.openstreetmap.org/wiki/Import/Guidelines
>>     <https://wiki.openstreetmap.org/wiki/Import/Guidelines>)
>>
>>     and it would be helpful if you could go ahead and and create a
>>     osm.wiki page for your import and add it to the catalog here
>>      (https://wiki.openstreetmap.org/wiki/Import/Catalogue
>>     <https://wiki.openstreetmap.org/wiki/Import/Catalogue>)
>>
>>     Another way to find potentially active users in your area is to
>>     use this website (http://resultmaps.neis-one.org/oooc
>>     <http://resultmaps.neis-one.org/oooc>)  you can sort in different
>>     ways and message the users who you think might be active in Guatemala.
>>
>>     Also Carlos do you have your own OSM user account?
>>
>>
>>     2017-06-19 16:00 GMT-07:00 CARLOS A. DUARTE <chduartegeo at gmail.com
>>     <mailto:chduartegeo at gmail.com>>:
>>
>>             Dear imports list members:
>>
>>             My name is Carlos Duarte, from Guatemala, Central America.
>>
>>             UNICEF Guatemala has requested me to update Guatemala
>>             municipal boundary info in Open Street Map. The scope of
>>             this task is beginning with checking and correcting the
>>             currently available data in OSM, and then, completing the
>>             missing boundary polygons.
>>
>>             To do so, I downloaded from OSM the existing information
>>             on Guatemala municipal boundaries, using Overpass Turbo.
>>
>>             Then, I compared the existing information in OSM with the
>>             official municipal boundaries shapefile from Guatemala
>>             (from National Geographic Service) and I found that most
>>             of the existing polygons are different to the official
>>             polygons, so I am exploring the idea of replacing all the
>>             polygons with the official shapefile. A colleague
>>             suggested to contact the OSM imports list, to request for
>>             guidance on the implications of completely replacing this
>>             information in OSM.  I haven’t been able to identify a
>>             local community of OSM contributors, so I am unsure if I’m
>>             allowed do a complete substitution, and what is the best
>>             way to proceed.
>>
>>             I will highly appreciate any orientation or guidance on
>>             this matter.
>>             I'm an experienced GIS user, but quite new with
>>             contributing to OSM.
>>
>>             Thanks and best regards from Guatemala
>>
>>             Carlos Duarte
>>             Guatemala
>>
>>
>>
>>
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>>
>>
>>
> 
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