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Is it out of date or is it just wrong?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out of date.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 <[email protected]
<mailto:[email protected]>> 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 <[email protected]
<mailto:[email protected]>>:
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 <[email protected]
<mailto:[email protected]>>:
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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