PROJ-data 1.2.0

Updates since 1.2.0:

• Added four new horizontal grids for Brazil (#39)
• Added Canary Islands geoid EGM08-REDNAP-Canarias (#24

PROJ-data 1.1.0

Updates since 1.0.0:

• addition of 4 grids for vertical transformations in Austria
• addition of 2 grids for horizontal ED50->ETRS89 and geoid model EGM08-REDNAP in Spain
• addition of 4 grids for horizontal transformations and geoid model in New Caledonia
• addition of NZGD2000 to ITRF96 deformation model in New Zealand (requires PROJ 7.1.0)
• addition of 2 grids for horizontal and geoid model in Slovakia
• addition of OSGM15 geoid model for United Kingdom

PROJ-data 1.1.0 can be used with PROJ 7.0.0 and newer.

PROJ-data 1.0.0

This is the first release in the new PROJ-data series of PROJ resource file packages. The PROJ-data package includes all grids and other resources previously tracked by the proj-datumgrid series of packages as well as some new grids. All grids in the PROJ-data package have been converted to the new Geodetic Tiff Grid (GTG) format introduced in PROJ with RFC4. The advantages of the GTG format are

• Grids can contain more metadata than previous formats used by PROJ
• Grids are compressed, taking up significantly less space
• Cloud optimized, for easy on-the-fly access to grids online via https://cdn.proj.org/
• Advanced gridded models previously consisting of several files can now be contained in one file

The data in the PROJ-data package is mirrored on https://cdn.proj.org/. A network-enabled PROJ build can leverage the CDN and retrieve (parts of) grids as specific transformations need them.

PROJ-data can be used with PROJ 7.0.0 and newer.