Fwd: [PROJ] Interested in helping for inclusion of grids for Spain, Austria, Slovakia, Brazil ?

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Jeff McKenna

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Dec 2, 2019, 8:07:53 AM12/2/19
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Forwarding a request for assistance from the PROJ mailing list, for
access to projection grids for Brasil. thanks. -jeff


---------- Forwarded message ---------

Hi,

I'm requesting help from good wills of the community to help us grow
our datasets of grids at
https://github.com/OSGeo/proj-datumgrid/
Below a few candidates I've identified, mentionned in EPSG and with a
number of them with
download links, but license clarification would be needed.

Community members from those countries are probably in a better
position than me to
connect with the relevant authority and see if they'd be willing to
adopt one of the licenses
mentionned at
https://github.com/OSGeo/proj-datumgrid#about-the-datum-grid-package

Spain
-----

* Peninsula and Baleares:

Anyone from the Spanish community to help clarifying license of
https://www.fomento.gob.es/recursos_mfom/gridshift1.zip (ED50 to ETRS89),
presumably whith IGN Spain

The download link is accessible from
https://www.fomento.gob.es/organos-colegiados/consejo-superior-geografico/csg/etrs89/etrs89-nuevo-sistema-de-referencia-geodesico-oficial-en-espana

This file has a sort of CC license
(https://gist.github.com/rouault/1ff4ad2d8053e068f9dbf451572692f4) but
with a
annoying non-modification clause that makes it incompatible with our
requirements
(we might want to transform it to another format like GeoTIFF),
and no version/link to the actual CC license.

* Catalonia:

Grid specific to Catalonia for ED50 to ETRS89 : 100800401.gsb
File found in
http://www.icgc.cat/content/download/48766/337962/version/1/file/Malla_NTv2_11_03.zip
but no explicit license mention.
https://www.icgc.cat/en/Web/Help/Legal-notice has a vague mention of
Creative Commons,
but no precise identification of which variant of it, and which version.

Austria
-------

The AT_GIS_GRID.gsb grid for MGI to ETRS89 is available at
http://www.bev.gv.at/portal/page?_pageid=713,2157075&_dad=portal&_schema=PORTAL
:

http://www.bev.gv.at/pls/portal/docs/PAGE/BEV_PORTAL_CONTENT_ALLGEMEIN/0200_PRODUKTE/UNENTGELTLICHE_PRODUKTE_DES_BEV/GIS-Grid.zip

Copyright info I could find is
"Hinsichtlich seiner Datenbanken verfügt das BEV über das ausschließliche
Werknutzungsrecht gemäß §§ 40f bis 40h UrhG und das sui generis-Recht
gemäß §§ 76c bis 76e UrhG."

which by itself is not super promising.

Slovakia
--------

https://www.geoportal.sk/en/geodeticke-zaklady/download/ offers for
download 3 grids
referenced by EPSG:
Slovakia_ETRS89h_to_Baltic1957.gtx
Slovakia_ETRS89h_to_EVRF2007.gtx
Slovakia_JTSK03_to_JTSK.LAS / .LOS

I've emailed the contact mentionned on the site to get info regarding
the license.
But wouldn't hurt to get feedback of knowledgeable people too.

Brazil
------

Looking for official download links & license for the following:

Corrego Alegre 1961 to SIRGAS 2000: CA61_003.gsb
Corrego Alegre 1970-72 to SIRGAS 2000: CA7072_003.gsb
SAD69 to SIRGAS 2000: SAD69_003.gsb
SAD69(96) to SIRGAS 2000: SAD96_003.gsb

https://www.killetsoft.de/p_gdln_e.htm has download links but official
ones from IBGE
would be preferable if possible.


Of course there are certainly gaps to fill for other countries I've
not mentionned...

Even




Jeff McKenna

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Dec 2, 2019, 8:12:17 AM12/2/19
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In summary: once these Brasil grids are added to the PROJ library, then
they can be distributed in QGIS and therefore give accurate projection
readings for all QGIS users in Brasil :)

Please consider helping Even Rouault get access to those grids, so he
can add them into the PROJ library.

thanks,

-jeff

yjmenezes

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Dec 2, 2019, 9:31:03 AM12/2/19
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@IBGE,  se puderem contactar com desenvolvedores e mantenedores do PROJ4

Kyle Felipe

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Dec 5, 2019, 12:56:31 PM12/5/19
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Isso é uma coisa que eu venho falando tem um tempo, nos grupos que participo, seria muito mais bacana para nós, se os nossos parâmetros entrassem para a lib...

Jeff McKenna

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Dec 16, 2019, 8:51:37 AM12/16/19
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Any progress on this?

-jeff



--
Jeff McKenna
MapServer Consulting and Training Services
https://gatewaygeomatics.com/

yjmenezes

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Dec 19, 2019, 7:33:30 AM12/19/19
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@Jeff,

I will try  to contact IBGE, our oficial mapping agency and ask ProGrid support team.


cheers,

julio menezes

Jeff McKenna

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Dec 19, 2019, 8:16:15 AM12/19/19
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Thank you Julio. Merry Christmas, from the east coast of Canada.

-jeff
> --
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yjmenezes

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Jan 3, 2020, 9:47:04 AM1/3/20
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Hi Jeff

Link of our oficial mapping agency IBGE.

you can download ant take the NTV2 grids from here.


thank you and have a nice 2020.

julio menezes

Jeff McKenna

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Jan 3, 2020, 4:34:42 PM1/3/20
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Hi Julio,

Thank you, great news!

I have filed an associated ticket in PROJ for these grids, it would be
great if you can also comment there:
https://github.com/OSGeo/proj-datumgrid/issues/101

Specifically, it would be great if you (or others) can clarify inside
that ticket what is the exact license of those grid files, provided by IBGE

Thank you again! :)

Wishing you a happy 2020.

-jeff




On 2020-01-03 10:47 AM, yjmenezes wrote:
> Hi Jeff
>
> Link of our oficial mapping agency IBGE.
>
> you can download ant take the NTV2 grids from here.
>
> ftp://geoftp.ibge.gov.br/informacoes_sobre_posicionamento_geodesico/sirgas/aplicativos/transformacao_coordenadas/progrid_compacto.zip
>
> thank you and have a nice 2020.
>
> julio menezes
> cartognu.org
>
>
>
> Em quinta-feira, 19 de dezembro de 2019 10:16:15 UTC-3, Jeff McKenna
> escreveu:
>
> Thank you Julio.  Merry Christmas, from the east coast of Canada.
>
> -jeff
>
>
>
> On 2019-12-19 8:33 AM, yjmenezes wrote:
> > @Jeff,
> >
> > I will try  to contact IBGE, our oficial mapping agency and ask
> ProGrid
> > support team.
> >
> > ib...@ibge.gov.br <mailto:ib...@ibge.gov.br>
> >
> > cheers,
> >
> > julio menezes
> > cartognu.org <http://cartognu.org>
> > envie um e-mail para qgisbrasil+...@googlegroups.com
> <mailto:qgisbrasil%2Bunsu...@googlegroups.com>
> > <mailto:qgisbrasil+...@googlegroups.com
> <mailto:qgisbrasil%2Bunsu...@googlegroups.com>>.
> <https://groups.google.com/d/msgid/qgisbrasil/3bdcf111-b612-4064-a9f7-ec1c7cef45ae%40googlegroups.com?utm_medium=email&utm_source=footer
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>
>
> --
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yjmenezes

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Jan 4, 2020, 8:38:10 AM1/4/20
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Hi Jeff,

I wrote to IBGE agency again, asking about NTV2 grid data license and suggesting a PROJ4 compatible for the grid data, keeping Progrid.exe software license as is.
I think it is possible to use an open licence for data files.

cheers
julio menezes

yjmenezes

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Jul 1, 2020, 11:48:12 AM7/1/20
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