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>:
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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> > To: "talk-br@openstreetmap.org" <talk-br@openstreetmap.org> > Subject: [Talk-br] Proposal of import: Brazilian Geodetic Network > (man_made=survey_points) > Message-ID: > <RO1P152MB0810A9F1942BD6C60818E9FD90240@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/. > > Por favor sintam-se livres para examinar. > > Antecipadamente obrigado. > > - - - - - - - - - - - - - - - - > > 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 . > (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). > > 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/> - 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:(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 > > Thank you in advance for your evaluation. > - - - - - - - - > [1] 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/002032.html > [2] 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) > [4] 05 ° 12 ' 06,8318 " N 60 ° 44 ' 15,1948 "W > - - - - - - - - > > > - - - - - - - - - - - - - - - - > > Sérgio - http://www.openstreetmap.org/user/smaprs > -------------- Próxima Parte ---------- > Um anexo em HTML foi limpo... > URL: <http://lists.openstreetmap.org/pipermail/talk-br/ > attachments/20170314/b00f83af/attachment.html> > > ------------------------------ > > Subject: Legenda do Digest > > _______________________________________________ > Talk-br mailing list > Talk-br@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-br > > > ------------------------------ > > Fim da Digest Talk-br, volume 102, assunto 24 > ********************************************* > -- Luis Cavalcanti da Cunha Bahiana Geógrafo : Coordenação de Geografia - IBGE
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