8.1.0 Release Notes

Updates

• Database

  • Update to EPSG v10.027 (#2751)

  • Decrease DB size by using WITHOUT ROWID tables (#2730) (#2647)

  • Add a ANALYZE step during proj.db creation allowing for faster lookups (#2729)

  • Added a PROJ.VERSION metadata entry (#2646)

  • Added NGO48 (EPSG:4273) to ETRS89 (EPSG:4258) triangulation-based transformation (#2554)

  • Additions to the norwegian NKG2020 transformation (#2548)

  • ESRI projection database updated to version 12.8 (#2717)

• API additions

  • Added proj_get_geoid_models_from_database() function that returns a list of geoid models available for a given CRS (#2681)

  • Added proj_get_celestial_body_list_from_database that returns a list of celestial bodies in the PROJ database (#2667)

  • Added proj_get_celestial_body_name() (#2662)

• Various improvements

  • proj_trans/cs2cs: If two operations have the same accuracy, use the one that is contained within a larger one (#2750)

  • Share SQLite database handle among all contexts (#2738)

  • Add proj/internal/mutex.hpp as compat layer for mingw32 for std::mutex (#2736)

  • projsync: make it filter out files not intended for the current version (#2725)

  • Improvements related to DerivedVerticalCRS using Change Unit and Height/Depth reversal methods (#2696)

  • Update internal nlohmann/json to 3.9.1, and add a CMake option to be able to use external nlohmann/json (#2686)

  • createFromUserInput(): change name of CRS built from URN combined references to match the convention of EPSG projected CRS (#2677)

  • Parse compound id with two authorities, like ESRI:103668+EPSG:5703 (#2669)

  • Added projinfo option --list-crs (supports --area) (#2663)

  • Added support for hyperbolic Cassini-Soldner (#2637)

  • Added capability to get SQL statements to add custom CRS in the database (#2577)

Bug fixes

• Fix 'Please include winsock2.h before windows.h' warning with msys (#2692)

• Minor changes to address lint in geodesic.c (#2752)

• BoundCRS::identify(): avoid incompatible transformation for WKT1 / TOWGS84 export (#2747)

• proj_create(): do not open proj.db if string is a PROJ string, even if proj_context_set_autoclose_database() has been set (#2735)

• Fix export of transformation to PROJ string in a particular situation where CompoundCRS are involved (#2721)