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OSGeo / PROJ-data

Repository for proj datum grids (for use by PROJ 7 or later)
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Spanish grids can be included #27

Closed rouault closed 4 years ago

rouault commented 4 years ago

The Spanish grids mentioned at https://lists.osgeo.org/pipermail/proj/2019-December/009082.html are confirmed to by CC BY v4

Information got from Victor Martin Guijarro, from National Geographical Institute of Spain (IGN):

From:   Martín Guijarro Víctor <REDACTED>
To: Even Rouault <READACTED>
Date:   Today 14:24
Hello Even

Finally I confirm you ED50-ETRS89 transformation is under CC BY v4 license. So PROJ are free to transform, modify and distribute it. The only limitation is PROJ or another user must show clearly data are from National Geographical Institute of Spain. This is always compulsory.

https://www.ign.es/web/ign/portal/politica-datos

http://www.ign.es/resources/licencia/Condiciones_licenciaUso_IGN.pdf

https://creativecommons.org/licenses/by/4.0/deed.es_ES

I recommend you this should appear in the metadata files. Examples:

  *   For a original IGN data: (Data name) (Year) CC-BY 4.0 www.ign.es<http://www.ign.es> - EGM08-REDNAP 2008 CC-BY 4.0 www.ign.es<http://www.ign.es/>
  *   For a derivated data from IGN data:  (Derivated data name from Original IGN Data name) (Year) CC-BY 4.0 www.ign.es<http://www.ign.es/>

Victor