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authorEven Rouault <even.rouault@spatialys.com>2020-01-28 15:03:36 +0100
committerEven Rouault <even.rouault@spatialys.com>2020-01-28 15:05:16 +0100
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-# PROJ-DATUMGRID-GEOTIFF
-
-The files in this package are in cloud-optimized GeoTIFF format and can be
-unpacked in the PROJ data directory of PROJ 7 or later.
-For an installed PROJ this may be /usr/local/share/proj or /usr/share/proj
-on unix style operating systems.
-
-## About the Datum Grid package
-
-The datum grid package for PROJ is maintained on the OSGeo proj-datumgrid-geotiff
-repository on [GitHub](https://github.com/OSGeo/proj-datumgrid-geotiff).
-
-It contains shift grids for horizontal and vertical coordinate transformations.
-
-All grids in the package are released under
-permissive licenses. New grids are accepted into the package as long as
-they are released under a license that is compatible with the [Open Source
-Definition](https://opensource.org/osd-annotated) and the source of the grid
-is clearly stated and verifiable. Suitable licenses include:
-
- * Public domain
- * X/MIT
- * BSD 2/3/4 clause
- * CC0
- * CC-BY (v3.0 or later)
- * CC-BY-SA (v3.0 or later)
-
-Consult [CONTRIBUTING.md](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/CONTRIBUTING.md) to submit a new grid.
-
-## Content Delivery Network
-
-Those grids can be retrieved from cloud storage (AWS Public datasets) as
-described in
-https://github.com/rouault/PROJ/blob/rfc4_remote_and_geotiff_grid/docs/source/community/rfc/rfc-4.rst#network-access-to-grids at
-https://cdn.proj.org
-
-### CDN Access Log Policy
-
-Implicit location sensitivity may happen because of the way PROJ remotely accesses data.
-The PROJ CDN erases all access and activity logs after 24 hours. If this policy is not
-sufficient, users are encourage to mirror a local copy of the grid files and access
-them directly.
-
-## Content
-
-All grid files should be put in a flat way in the PROJ data directory. They
-will be also organized in a flat way on cdn.proj.org.
-
-However for clarity of this repository, we have organized them by producer / agency.
-Each file is in a subdirectory whose name follows {country_code}_{agency_name}.
-For example us_noaa for files originating from US NOAA.
-
-* [at_bev: Austria BEV](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/at_bev/)
-* [au_ga: Australia Geoscience Australia](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/au_ga/)
-* [au_icsm: Australia ICSM](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/au_icsm/)
-* [be_ign: Belgium IGN](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/be_ign/)
-* [ca_nrc: Canada NRC](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/ca_nrc/)
-* [ca_que_mern: Canada Quebec MERN](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/ca_que_mern/)
-* [ch_swisstopo: Switzerland Swissstopo](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/ch_swisstopo/)
-* [de_adv: Germany AdV](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/de_adv/)
-* [de_geosn: Germany GeoSN](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/de_geosn/)
-* [de_lgl_bw: Germany LGL Baden-Württemberg](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/de_lgl_bw/)
-* [de_lgvl_saarland: Germany LGVL Saarland](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/de_lgvl_saarland/)
-* [dk_sdfe: Denmark SDFE](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/dk_sdfe/)
-* [es_cat_icgc: Spain Catalonia ICGC](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/es_cat_icgc/)
-* [eur_nkg: Nordic Geodetic Commission](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/eur_nkg/)
-* [fr_ign: France IGN](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/fr_ign/)
-* [is_lmi: Iceland LMI](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/is_lmi/)
-* [nl_nsgi: Nederlandse Samenwerking Geodetische Infrastructuur (NSGI)](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/nl_nsgi/)
-* [nz_linz: New Zealand LINZ](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/nz_linz/)
-* [pt_dgt: Portugal DGT](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/pt_dgt/)
-* [se_lantmateriet: Sweden Lantmateriet](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/se_lantmateriet/)
-* [uk_os: UK OS](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/uk_os/)
-* [us_nga: USA NGA](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/us_nga/)
-* [us_noaa: USA NOAA](https://github.com/OSGeo/proj-datumgrid-geotiff/blob/master/us_noaa/)