Obrigado Tomio. De fato o Telegram não fica amplamente acessível.
Colocando por aqui como canal oficial do OSM é mais certo mesmo.
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Sérgio - http://www.openstreetmap.org/user/smaprs
------------------------------------------------------------------------
*De:* Helio Cesar Tomio <hcto...@gmail.com>
*Enviado:* sexta-feira, 17 de março de 2017 17:30
*Para:* OpenStreetMap no Brasil
*Assunto:* Re: [Talk-br] Digest Talk-br, volume 102, assunto 24
Texto muito bom Sérgio.
Toda a história a limpo, desmentindo aquela alegação que não houve
discussão anteriormente.
Em 17/03/2017 13:50, "Luis Bahiana" <luis.bahi...@gmail.com
<mailto:luis.bahi...@gmail.com>> escreveu:
Se precisarem de ajuda para tradução ou versão coloco-me a disposição
2017-03-14 13:23 GMT-03:00 <talk-br-requ...@openstreetmap.org
<mailto:talk-br-requ...@openstreetmap.org>>:
Enviar submissões para a lista de discussão Talk-br para
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Para se cadastrar ou descadastrar via WWW, visite o endereço
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ou, via email, envie uma mensagem com a palavra 'help' no
assunto ou
corpo da mensagem para
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Você poderá entrar em contato com a pessoa que gerencia a
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Quando responder, por favor edite sua linha Assunto assim ela será
mais específica que "Re: Contents of Talk-br digest..."
Tópicos de Hoje:
1. Proposal of import: Brazilian Geodetic Network
(man_made=survey_points) (Sérgio V.)
----------------------------------------------------------------------
Message: 1
Date: Tue, 14 Mar 2017 16:22:41 +0000
From: Sérgio V. <svo...@hotmail.com <mailto:svo...@hotmail.com>>
To: "talk-br@openstreetmap.org
<mailto:talk-br@openstreetmap.org>" <talk-br@openstreetmap.org
<mailto:talk-br@openstreetmap.org>>
Subject: [Talk-br] Proposal of import: Brazilian Geodetic Network
(man_made=survey_points)
Message-ID:
<ro1p152mb0810a9f1942bd6c60818e9fd90...@ro1p152mb0810.lamp152.prod.outlook.com
<mailto:ro1p152mb0810a9f1942bd6c60818e9fd90...@ro1p152mb0810.lamp152.prod.outlook.com>>
Content-Type: text/plain; charset="utf-8"
Bom dia pessoal, estou preparando a proposta abaixo para o
https://lists.openstreetmap.org/pipermail/imports/
<https://lists.openstreetmap.org/pipermail/imports/>.
Por favor sintam-se livres para examinar.
Antecipadamente obrigado.
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Hello.
I'm member of brazilian OSM users community.
I present here for discussion, and asking approval for, the
proposal for the import of brazilian geodetic network of
survey points (SGB - Sistema Geodésico Brasileiro).
Firstly, sorry if not good english. Also sorry for the
technical problems that arose due to the size of elements in
previously ill imported relation.
This proposal was previously formally informed in brazilian
talk list in
https://lists.openstreetmap.org/pipermail/talk-br/2017-March/012063.html
<https://lists.openstreetmap.org/pipermail/talk-br/2017-March/012063.html>
.
(Also this post here will be copied to brazilian talk list.)
The discussions in Brazilian community: actually started in
6th march in Telegram channel of the brazilian community,
where it has been carried on, and where we generally use to
talk most (159 members, around some 80 users connecting daily
and some 20 activelly communicating). Many members made
remarks and suggestions about it and, after all arrangements,
general aprovals for procedures and utility purpose.
The purpose of this proposal: is to import the survey points
published by the brazilian government agency for geographical
data (called IBGE -
(http://www.ibge.gov.br/home/geociencias/geodesia/default_sgb_int.shtm
<http://www.ibge.gov.br/home/geociencias/geodesia/default_sgb_int.shtm>).
The source data: is all produced and published by IBGE.
The government also publishes these data through the more
general portal for brazilian spatial data (INDE:
http://www.visualizador.inde.gov.br
<http://www.visualizador.inde.gov.br><http://www.visualizador.inde.gov.br/
<http://www.visualizador.inde.gov.br/>> - Menu: Redes
Geodesicas), from where it was dowloaded.
About the licenses for the data: as said in previous exchange
of messages of other brazilian OSM member with IBGE officials
[1], and as stated by the brazilian national law for access to
information (known as "LAI"), all the government data,
including IBGE, is free for access, not even requiring to say
what for it is intended [2] (the exceptions quoted in the law
must not even be published by the government). IBGE officials
explicitly stated, as in previous quoted messages, it's free
for OSM purposes, for copy, sharing and changes, since quoting
the source, and not requiring further back communication.
The aim of the import: is to have all these points with their
precise coordinates provided by the government, placed in OSM
brazilian map to help on aligning imagery, fixing borders,
found places in remote regions, etc.
It can be objected: found no survey point in imagery on the
ground.
That's true. Many things pedestrians have mapped can't be seen
on sattelite imagery now, like door numbers, shop names,
highway signals, and many other small things, perhaps also
fire_hidrants, etc. It usually resides all on local mapper's word.
Also imagery resolution is improving constantly, so perhaps
not too later we all can see many more things on sattelite
imagery.
Anyway, the government, through its data itself and its
official reports of survey points, states they are there on
the ground.
As a single example: there's a survey point (a small plate)
over a boundary_stone in the Brazil-Venezuela-Guyana triple
border, reported in [3]. It seems not visible in imagery, nor
the boundary_stone. At least I still haven't found it (but I'm
looking for). But just seeing this officialy reported point in
JOSM (5.2018977222 <tel:2018977222><tel:(201)%20897-7222>,
-60.7375541111)[4] indicates this triple border in OSM is
currently more than 1km far from that official measurement,
thus deserving some revision.
Other general informations:
-All the objects proposed to import came previously converted
by IBGE in WGS84 format in the original downloaded shape file.
-There will be no relation (in OSM peculiar concept for
relation) to be stablished between these individual points.
-Only are meant to be imported the portion of the stations
classified as in good conditions, leaving aside the ones
destructed or not found as quoted in the official reports. So
the final total number of points to be imported is smaller
than in the original shp.
The proposed tags are these (english translation or meaning
below in parenthesis):
description=Rede Geodésica do IBGE - Estação SAT DOPPLER
(=IBGE Geodetic Network - <6 types of station, for: SAT
DOPPLER; SAT GPS; Polygonal; Triangulation; Elevation
Reference; Permanent GNSS>); by these 6 types of description=
station...*... the data is aimed to be also accessible for
recalling and maintence.
ele=* (when geometric height available)
man_made=survey_point
note:en=Please: do not displace the point (official coordinates)
note=Não deslocar o ponto (coordenadas originais do IBGE)
(almost the same as note:en, with local exortation tone)
ref:loc=São Félix do Xingu
(the locality where the point is, perhaps even not mapped
itself)
ref=90970
(the particular and unique name or number of the station)
source=IBGE/INDE/BDG_DOPPoint.SHP
(the original shape file)
sourceːele = IBGE/MAPGEO2015
(for Elevation Reference: MAPGEO2015 is the geoid model in
Brazil)
url=*
(to access the complete official report, sometimes it has
photos and other info that help a bit more to identify)
The proposal is documented at:
https://wiki.openstreetmap.org/wiki/Importa%C3%A7%C3%A3o_das_Redes_Geod%C3%A9sicas_do_IBGE
<https://wiki.openstreetmap.org/wiki/Importa%C3%A7%C3%A3o_das_Redes_Geod%C3%A9sicas_do_IBGE>
Thank you in advance for your evaluation.
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[1]
https://lists.openstreetmap.org/pipermail/imports/2013-July/001981.html
<https://lists.openstreetmap.org/pipermail/imports/2013-July/001981.html>
https://lists.openstreetmap.org/pipermail/imports/2013-July/002031.html
<https://lists.openstreetmap.org/pipermail/imports/2013-July/002031.html>
https://lists.openstreetmap.org/pipermail/imports/2013-July/002032.html
<https://lists.openstreetmap.org/pipermail/imports/2013-July/002032.html>
[2]
http://www.acessoainformacao.gov.br/assuntos/conheca-seu-direito
<http://www.acessoainformacao.gov.br/assuntos/conheca-seu-direito>
[3] "Localização: Na parte mais alta do Monte Roraima, em
território brasileiro...", says, "Location: In the upper part
of Mount Roraima, in brazilian territory..."
(http://www.bdg.ibge.gov.br/bdg/pdf/relatorio.asp?L1=90128
<http://www.bdg.ibge.gov.br/bdg/pdf/relatorio.asp?L1=90128>)
[4] 05 ° 12 ' 06,8318 " N 60 ° 44 ' 15,1948 "W
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Sérgio - http://www.openstreetmap.org/user/smaprs
<http://www.openstreetmap.org/user/smaprs>
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------------------------------
Subject: Legenda do Digest
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------------------------------
Fim da Digest Talk-br, volume 102, assunto 24
*********************************************
--
//
Luis Cavalcanti da Cunha Bahiana
Geógrafo : Coordenação de Geografia - IBGE
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