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

[Jeff McKenna]

I've forwarded this to the vibrant QGIS-Brasil community.  -jeff



On 2019-12-01 7:18 PM, Even Rouault wrote:
> 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
>