Updates

• Add support for transformations involving coordinate epoch changes (PointMotionOperation), specifically for Canadian NAD83(CSRS)(#3884)
• SSL_OPTIONS: set SSL options on Curl library (#3936)
• Add support for unity builds (#3962)
• Added ability to install *.tif if present in data (#3970)
• createOperationsCompoundToGeog(): tune selection logic when --grid-check known_available is specified (#3990)
• Increase CMake minimum version from 3.9 to 3.16 (#3997)
• CMake: use FetchContent to get googletest-1.12.1 (#4006)
• CMake: Replace custom FindSqlite3 with FindSQLite3 built-in (#4007)
• tpeqd: use numerically stable formula for computing the central angle from (phi_1, lam_1) to (phi_2, lam_2) (#4009)
• Move content of proj_experimental.h to proj.h (#4019)
• Add +proj=mod_krovak projection method for Modified Krovak that applies to S-JTSK/05 in the Czech Republic (#4021)
• PROJString formatter optimizer: simplify pipelines doing [Modified]Krovak (South West) <--> [Modified]Krovak (East North) by just doing an axis swap (#4034)
• +proj=gridshift: enhance to support grids referenced in projected CRS, and with easting_offset/northing_offset corrections (#4038)
• Tune concatenated operation instanciation, reference CR2005 geoid for Czechia and add (disabled by default) records for Czechia S-JTSK/05 based transformations (#4044)
• Database: update to EPSG v11.004 (#4062)

Bug fixes

• Fix missing symbols at link time for Windows target in Visual Studio (#3984)
• Improve error message in axisswap (#3885
• Avoid convergence errors in +proj=gridshift when using biquadratic interpolation (#3985)

Updates

• Update to EPSG 10.098 (#3968)
• Update ESRI objects to v3.2.0 (#3944)

Bug fixes

• ITRF2008: fix wrong sign for dry parameter of EURA and EURA_T (#3870)
• Fix build error with MSVC 2019 in /std:c++20 on NN_NO_CHECK() (#3872)
• ESRI WKT import: normalize GCS_unknown to unknown and D_unknown to unknown (#3874)
• CoordinateOperationFactory: deal with CompoundToCompound with a horizontal similarity transformation and a ballpark vertical (#3881)
• Ellipsoid::_isEquivalentTo(): fix so that an ellipsoid of semi-major axis A (and non-zero inv flattening) isn't equivalent to a sphere of radius A (#3882)
• isEquivalentTo(): make a datum name 'unknown' equivalent to another one (#3883)
• cs2cs: fix handling of input coordinates in grad (#3886)
• Make setargv.obj available on Universal Windows Platform (#3891)
• Allow opening proj.db with a URI (#3892)
• createOperations(): fix GeogCRS 3D with TOWGS84 to geocentric CRS (#3915)
• Fix test suite so that it can pass with ENABLE_TIFF=OFF (#3916)
• GeographicBoundingBox::intersects(): avoid infinite recursion and stack overflow on invalid bounding boxes (#3919)
• Fix importing '+proj=topocentric ... +type=crs' by using a geocentric CRS as the base CRS (#3924)
• Allow LOCAL_CS with 3 axes (#3928)
• WKT1 parser: in non-strict mode, accept missing UNIT[] in GEOGCS, GEOCCS, PROJCS and VERT_CS elements (#3933)
• createOperations(): fix issue with a obscure case involving CompoundCRS of unknown horizontal datum + boundCRS of vertical (#3934)
• createOperations(): fix bad PROJ pipeline when converting between with non-metre height to CompoundCRS (#3943)
• createOperations(): Fix possible null dereference on invalid WKT input (#3946)
• proj_factor: fix when input is a compound CRS of a projected CRS (#3950)
• pj_get_suggested_operation(): tune it to give correct result for RGAF09 to RRAF 1991 / UTM zone 20N + Guadeloupe 1988 height transformation (#3954)
• Move static NameSpace::GLOBAL definition in static.cpp to avoid 'static initialization fiasco' (#3956)
• horner: allow arbitrary input type of coordinate (#3961)

9.3.0 Release Notes

Updates

• Add C++ API to transform coordinate (#3705)
• CMake: add PROJ_DB_CACHE_DIR (#3711)
• Implement EPSG:1026 Mercator (Spherical) method (#3741)
• CMake: remove useless cross-compiling related checks (#3747)
• Add mapping of Equidistant Conic to new EPSG:1119 method (#3812)
• Implement proposal001 from Planetary DWG from OGC (#3816)
• Add option in proj CLI to use a CRS (#3825)
• proj_factors(): make it work with projected CRS with non-metre unit and/or northing/easting axis order (#3826)
• PROJ_DEBUG: make ON an alias of 2, and OFF of 1 (#3835)
• Database: update to EPSG 10.094 (#3847)

Bug fixes

• GeographicBoundingBox::intersection(): avoid infinite recursion and stack overflow on invalid bounding boxes (#3748)
• Various fixes related to concatenated operations (#3820)
• Projected CRS identification: fix crash when the base CRS is a non-geographic geodetic CRS (#3830)
• Avoid C++ exceptions to be thrown (and caught) when parsing strings like +proj=longlat +datum=WGS84 +type=crs (#3834)
• BUG: Handle prefix whitespace when guessing WKT dialiect (#3841)
• proj_alter_id(): make it replace an existing ID instead of appending a new one (#3846)
• bonne: fix inverse map projection computations when lat_1 < 0 (#3849)
• WKT1 ESRI import/export: fix GCS name for EPSG:8353 S-JTSK_[JTSK03]_Krovak_East_North (#3851)

9.2.1 Release Notes

Database updates

• Add alias for old ESRI datum/CRS names of EPSG:8353 S_JTSK_JTSK03_Krovak_East_North (#3678)
• Pseudo Mercator now supported with IAU CRS's (#3645)
• Updated to EPSG 10.088 (#3731)

Bug fixes

• Fixed build errors with Cygwin (#3642)
• PROJ string CRS parser: make sure that PROJ arguments of the rotated string are kept in the WKT representation (#3656)
• Fix slowness on proj_trans() when doing WGS 84 <--> NAD83 conversions (#3661)
• vgridshift/gridshift: accept hydroid_height as valid band description (#3675)
• WKT/PROJJSON: import/export accuracy of ConcatenatedOperation (#3676)
• Coordinate operation factory: count identified concatenated operations as a single step (#3677)
• EngineeringCRS: make proj_create_engineering_crs() set a datum name and relax isEquivalentTo() comparisons (#3685)
• PROJJSON: fix import/export of integer parameter value, and deal with interpolation CRS parameters in conversions (#3695)
• CMake: avoid imbalanced cmake_policy push/pop if TIFF or CURL dependency cannot be found (#3697)
• proj_create_crs_to_crs(): restore transformation selection behaviour of PROJ 9.1 when grids are missing (#3707)
• ESRI WKT: improve roundtrip of name and definition for UPS WGS84 CRS (#3720)
• CRS instanciation from PROJ.4 string: set 'Unknown based on XXXX ellipsoid' datum name when instanciating from known +a, +rf (#3727)
• cs2cs / proj_create_crs_to_crs(): fix regression with geocentric CRS (#3729)
• proj_trans(): set PROJ_ERR_COORD_TRANSFM_NO_OPERATION error when failing in ONLY_BEST=YES mode (#3730)
• tinshift: raise maximum size of JSON file to 100 MB (#3736)

9.2.0 Release Notes

Updates

• Database

  • EPSG updated to EPSG 10.082 (#3609)

  • ESRI objects updated to v3.1.0 (#3575)

  • Added Slovenian geoid model SLO-VRP2016/Koper (#3610)

• Projections

  • Added generic Space Oblique Mercator (#3338)

  • Inverse eck4: Add checks for projection domain (#3625)

• Transformations

  • Added support for NADCON5 grids and transformation method (#3510)

  • Added option ONLY_BEST=YES (#3535)

    When enabled only use the best possible transformation between two CRS's can be
    instantiated. If the best possible transfomations can't be instantiated it will
    fail instead of opting for the next best transformation.

    With ONLY_BEST=YES a transformation will fail if a needed grid is unavailable.

    The option can be toggled in proj.ini and with --only-best in cs2cs.

  • Implement 'Similarity transformation' (EPSG:9621) and import related
    tranformations from EPSG (#3578)

  • Optimise transformations between GDA94, GDA2020 and WGS84 (#3621)

• Performance improvements

  • Pass PJ_COORD by reference for fwd4d and inv4d callbacks (#3503)

  • Improved of inverse meridian length calculations (#3516)

  • Avoid very poor performance on a geographic CRS whose datum name is the alias of an official one (#3624)

• Well-Known Text improvements

  • Support WKT:2019 COORDINATEMETADATA[] construct (#2711)

  • implement alterCSLinearUnit for CompoundCRS (#3325)

  • Implement alterCSLinearUnit for BoundCRS (#3327)

  • Added PJ_TYPE_DERIVED_PROJECTED_CRS (#3488)

  • Added support for ISO19111 CoordinateMetadata class (#3562)

  • Update WKT import to support WKT2 corrigendum (#3573)

  • WKT import: Make axis direction and range meaning enumeration case
    insensitive as mandated by spec (#3577)

  • Implement AffineCS and handle it in WKT (#3579)

  • WKT1 parser: Support inf as inverse flattening value (#3626)

• PROJJSON

  • Version number changed to 0.6

  • Added an additional optional source_crs property in abridged_transformation (#3454)

  • Added support for ISO19111 CoordinateMetadata class (#3562)

  • Implement AffineCS and handle it in PROJJSON (#3579)

• C/C++ API

  • C API: add proj_get_domain_count(), proj_get_area_of_use_ex() and proj_get_scope_ex() (#3588)

  DEPRECATIONS

  The following functions have been deprecated and will be removed in a future version.

  • C API function proj_rtodms. Use proj_rtodms2 instead (#3431)

  • C experimental API function proj_create_conversion_tunisia_mapping_grid().
    Use proj_create_conversion_tunisia_mining_grid() instead (#3559)

  • C++ API function createTunisiaMapingGrid(). Use createTunisiaMiningGrid() instead (#3559)

  • Added explicit NaN handling to proj_trans and gie (#3603)

• CMake

  • Added uninstall target (#3362)

  • Adopted use of TIFF:TIFF and CURL::libcurl targets (#3374)

• Security improvements

  • Replaced uses of sprintf with the safer snprintf (#3421, #3431)

• Various other improvements

• Implemented platform independent mutex for better results on lesser used platforms (#3425)

• Improved name and remarks in descriptions of some vertical transformations (#3334)

• Implemented stricter matching by name to avoid false positives (#3487)

• Improved numerical accuracy of the meridian length calculations and its inverse (#3516)

• Added PROJ_IGNORE_CELESTIAL_BODY=YES environment variable that allows better matching of
  non-earth shaped ellipsoids to other celestial bodies (#3569)

Bug fixes

• rtodms(): fix potential buffer overflow not dealt with (#3441)

• NetworkFile::open(): fix memory leak in unlikely error code path (#3443)

• When importing LOCAL_CS["foo"], generates a non-empty name for the datum (#3491)

• Avoid unit mix-up in CRS::alterCSLinearUnit for DerivedProjectedCRS (#3499)

• WKT to PROJ conversions: Map 'Lambert Azimuthal Equal Area (Spherical)' to +proj=laea +R_A (#3526)

• ProjectedCRS::identify(): Relax trust in id/authority in definition to identify (#3532)

• Fix instantion of http://www.opengis.net/def/crs/IAU/2015/xxx URNs (#3569)

• Fix proj_normalize_for_visualization() on a transformation with FORCE_OVER=YES (#3570)

• createBoundCRSToWGS84IfPossible(): Do not report +towgs84 for a CRS with multiple extents,
  such as EPSG:6316 (#3587)

• pj_get_suggested_operation(): handle longitudes outside of [-180,180] for coordinate
  operation selection (#3595)

• WKT1 parser: only emit warning when encountering invalid UNKNOWN WKT1 axis direction (#3618)

• projinfo: fix long option name --source-crs (#3601)

9.1.1 Release Notes

Updates

• Database: register at_bev_AT_GIS_GRID_2021_09_28 grid (#3442)

Bug fixes

• Implement alterGeodeticCRS and stripVerticalComponent for DerivedProjected (#3482)

• Various improvements to handling of DerivedProjectedCRS (#3482, #3477, #3342, #3319, #3317)

• Add missing includes (#3459)

• cs2cs: better validate value of -W option (#3453)

• DatabaseContext::lookForGridInfo(): fix caching of filenames and set correct URLs (#3448)

• Database: register in grid_alternatives grids from PROJ-data that have no corresponding transformation record (#3446)

• cass projection: fix forward computation of easting (#3433)

• Implement Geographic/Vertical Offset conversions (#3413)

• vandg projection: handle +over to extend the validity domain outside of |lon|>180deg (#3427)

• eqdc projection: avoid floating point division by zero in non-nominal case (#3415)

• createOperations(): fix issues when transforming between Geog3D and DerivedGeog3D CRS with Geographic3D offsets method (#3411)

• VerticalCRS::_isEquivalentTo(): do not consider VerticalCRS and DerivedVerticalCRS as equivalent (#3408)

• cct and cs2cs: Avoid problems when encountering UTF-8 BOM characters at beginning of input files (#3395)

• createFromUserInput(): Improved lookup when approximate name is provided (#3371)

• projinfo / cs2cs : auto promotion to 3D of CRS specified by name (#3367)

• findsOpsInRegistryWithIntermediate(): make it work when source/target geodetic CRS has no known id (#3365)

• createOperations(): emulate PROJ < 6 behavior when doing geocentric <--> geographic transformation between datum with unknown transformation (#3361)

• Fix issue when transforming from/into a WKT2 Bound VerticalCRS with a 'Geographic3D to GravityRelatedHeight' method (#3355)

• proj_normalize_for_visualization(): take into account FORCE_OVER property from source operation (#3350)

• Link geodtest against libm when available (#3341)

9.1.0 Release Notes

Updates

• Database

  • Database: update to EPSG v10.074 (#3273)

  • Update ESRI objects to version 3.0.0 (#3257)

  • Generate null transformation between geodetic/vertical datum ensemble and its members (#3266)

  • Add fk delete cascade to database tables for improved customizability of the database (#3237)

  • Add Svalbard geoid grid no_kv_arcgp-2006-sk to grid alternatives (#3292)

  • Added French grid fr_ign_RAF20 to grid alternatives (#3228)

• WKT & PROJJSON

• WKT2 parser: allow unit-less PARAMETER for coordinate operations (#3271)

• WKT and PROJJSON adjustments (#3234)

• Bump PROJJSON to v0.5 (#3216)

• Change order of horizontal and vertical operations when dealing with WKT1 / PROJ4 compound CRS (#3127)

• Coordinate Operations

• Implement Vertical Offset and slope transformation method (#3200)

• Add Interrupted Mollweide (land and ocean view) projections (#3139)

• Add invertible Horner polynomials (#3133)

• Optimizations

• NTv2 and GTX grid readers: add a cache of lines to speed-up (#3241)

• IComparable::isEquivalentTo() optimizations (#3233)

• Various Updates

• createOperations() / proj_trans(): better take into account area of interest name / do not only keep first returned coordinate operation (#3282)

• createOperations(): take into account axis unit and inversion of target DerivedProjectedCRS (#3281)

• Allow a Compound CRS with derived projected (#3283)

• Make "Vertical Offset and Slope" method usable as a deriving conversion of a DerivedVerticalCRS (#3270)

• PROJ pipeline generator: recognize opposite Helmert transformations using a different convention (#3265)

• createOperations(): prefer simpler pipelines / affects WGS 84 to GDA94/GDA2020 (#3248)

• Make it possible to determine which grid files were actually used during a transformation (#3180)

• Transformation: no longer do vertical trasnformation when doing compound CRS to 2D CRS / add --3d to cs2cs (#3119)

• Deprecate PROJ4 CMake name (#3094)

• Use GNUInstallDirs for CMake install locations (#3100)

• Introduce PROJ_DATA environment variable to deprecate PROJ_LIB (#3253)

Bug fixes

• projinfo: fix crash on --list-crs when proj.db cannot be opened (#3290)

• getCRSInfoList(): fix retrieval of projected_crs given by text_definition
  only (#3289)

• WKT parser: fix issue when parsing some WKT1 with Hotine_Oblique_Mercator_Azimuth_Center and ignoring rectified_grid_angle (#3280)

• WKT1 import: better deal when the angular unit of the GEOGCS[] of the
  PROJCS[] doesn't match the one from the database (#3274)

• createOperations(): avoid potential infinite recursions (#3264)

• WKT ESRI: fix related to projected CRS export and add support for geographic
  3D CRS with LINUNIT node (#3256)

• proj_grid_info(): make it work again with remote grids (#3239)

• createOperations(): fix projected CRS with non-metre horiz&vertical unit and towgs84 to gencentric CRS (#3231)

• createOperations(): fix infinite recursion in a complex case (#3226)

Database updates

• Update to EPSG 10.064 (#3208)

• Add OGC:CRS84h (WGS 84 longitude-latitude-height) (#3155)

Bug fixes

• Use CMAKE_INSTALL_MANDIR to override default (#3081)

• Increase MAX_ITER so Mollweide forward projection works near the poles (#3082)

• Fix wrong results with SQLite 3.38.0 (#3091)

• Fix issue when transforming from/to BoundCRS of 3D CRS with non-Greenwich prime meridian, created from WKT (#3098)

• Fix issues with WKT of concatenated operations (#3105)

• CMake: fix installation of proj.pc on Windows (#3109)

• createOperations(): fix issue in transformation northing, easting projected CRS -> +proj=longlat +lon_wrap (#3110)

• unitconvert: round to nearest date when converting to yyyymmdd (#3111)

• Fix comparison of GeodeticRefrenceFrame vs DynamicGeodeticReferenceFrame (#3120)

• createOperations(): fix transformation involving CompoundCRS, ToWGS84 and PROJ4_GRIDS (#3124)

• Fix datum names when importing from PROJ4 crs strings (affects some transformations using geoidgrids) (#3129)

• Deal with PARAMETER["EPSG code for Interpolation CRS",crs_code] (#3149)

• createOperations(): fix CompoundCRS[BoundCRS[ProjectedCRS],BoundCRS[VerticalCRS]] to Geog3DCrs (#3151)

• ITRF2014: fix ITRF2014:ITRF88,ITRF94 and ITRF96 definitions (#3159)

• createBoundCRSToWGS84IfPossible(): improve selection logic to generate +towgs84= taking into account extent (#3160)

• createOperations(): fix some complex cases involving TOWGS84 and CompoundCRS (#3163)

• Fix cmake CURL dependency, update appveyor - vcpkg interaction (#3185)

• WKT import: deal with Projected CRS that is a mix of WKT1:GDAL / WKT1:ESRI (#3189)

• createOperations(): fix/improve result of 'BD72 + Ostend height ' to 'WGS84+EGM96 height' (#3199)

• Identifier::isEquivalentName(): fix when ending by ' + ' which could indirectly cause an infinite stack call in master (#3202)

• WKT import: correctly deal with absence of Latitude_Of_Origin parameter in WKT1 ESRI with Stereographic projection (#3212)

• PROJJSON parser: do not error out if a datum ensemble member is unknown in the database (#3223)

9.0.0 Release Notes

Breaking Changes

• Support for the autotools build system has been removed (#3027) See RFC7 for details: https://proj.org/community/rfc/rfc-7.html

Updates

• Database updates:
  • ESRI projection engine db to version 12.9 (#2943)
  • EPSG v10.054 (#3051)
  • Vertical grid files for PL-geoid-2011, Polish geoid model (#2960)
  • Belgian geoid model hBG18 to grid alternatives (#3044)
• Add new option to proj_create_crs_to_crs_from_pj method to force +over on
  transformation operations (#2914)
• Specify CMAKE_INSTALL_RPATH for macOS; use -rpath LDFLAGS for tests (#3009)
• Implement Geographic3D to Depth/Geog2D+Depth as used by ETRS89 to CD Norway depth (#3010)
• Allow PROJ_LIB paths wrapped with double quotes (#3031)
• Use external gtest by default when possible (#3035)
• CMake: make BUILD_SHARED_LIBS=ON the default even on Windows (#3042)
• proj.ini: add a ca_bundle_path variable (#3049)

Bug fixes

• Fix extremely long parsing time on hostile PROJ strings (#2968)
• CMake: fix warning with external googletest (#2980)
• proj_get_crs_info_list_from_database(): report PJ_TYPE_GEODETIC_CRS for IAU_2015 -ocentric geodetic CRS (#3013)
• peirce_q: rename +type parameter wrongly introduced in 8.2.1 to +shape (#3014)
• Set more precise error code for parsing errors in proj_create() (#3037)
• createOperations(): fix transformations from/to a BoundCRS of a DerivedGeographicCRS coming from WKT (#3046)
• Better deal with importing strings like +init=epsg:XXXX +over (#3055)
• Fix importing CRS definition with +proj=peirce_q and +shape different from square or diamond (#3057)

8.2.1 Release Notes

Updates

• Database updated with EPSG v. 10.041 (#2974)

Bug fixes

• BoundCRS WKT import: fix setting of name (#2917)

• PROJStringFormatter::toString(): avoid invalid iterator increment (#2932)

• Ensure CApi test are cross-platform (#2934)

• createOperations(): do not stop at the first operation in the PROJ namespace or vertical transformations (#2937)

• createOperationsCompoundToCompound(): fix null pointer dereference when connection to proj.db doesn't exist. (#2938)

• Fix windows.h conflict with Criterion::STRICT (#2950)

• Cache result of proj_get_type() to help for performance of proj_factors() (#2967)

• createOperations(): improvement for "NAD83(CSRS) + CGVD28 height" to "NAD83(CSRS) + CGVD2013(CGG2013) height" (#2977)

• WKT1 import: correctly deal with missing rectified_grid_angle parameter (#2986)

• Fix and additional options for Peirce Quincuncial projections (#2978)

• Fix build with Intel C++ compiler (#2995)

8.2.0 Release Notes

Announcements

From PROJ 9.0.0 and onwards CMake will be the only build system bundled
with the PROJ package. As a consequence support for Autotools builds will
stop when the 8.2 branch of PROJ reaches end of life. We encourage
everyone to adjust their build workflows as soon as possible and report
any discrepancies discovered between Autotools and CMake builds.

Details about the build system unification can be found in PROJ RFC 7.

Updates

• Added the S2 projection (#2749)

• Added support for Degree Sign on input (#2791)

• ESRI WKT: add support for import/export of (non interrupted) Goode Homolosine (#2827)

• Make filemanager aware of UWP Win32 API (#2831)

• Add proj_create_conversion_pole_rotation_netcdf_cf_convention() to address netCDF datasets using a pole rotation method (#2835)

• Emit better debug message when a grid isn't found (#2838)

• Add support for GeodeticCRS using a Spherical planetocentric coordinate system (#2847)

• PROJJSON: support additional properties allowed in id object (version, authority_citation, uri) for parity with WKT2:2019 (#2850)

• Database layout modified to include "anchor" field to geodetic_datum and vertical_datum tables, consequently database layout version is increased to 1.2 (#2859)

• proj_factors(): accept P to be a projected CRS (#2868)

• Add IAU_2015 CRS definitions (#2876)

• CRS::extractGeodeticCRS(): implement for DerivedProjectedCRS (#2877)

• Added proj_trans_bounds() (#2882)

• CMake: add a BUILD_APPS to be able to disable build of all applications (#2895)

• CMake: generate invproj/invgeod binaries (symlinks on Unix, copy otherwise) (#2897)

• CMake build: add generate_wkt1_parser and generate_wkt2_parser manual target, and logic to detect when they must be run (#2900)

• Add fallback strategy for tinshift transform to use closest triangle for points not in any (#2907)

• Database: update to EPSG v10.038 (#2910)

• CMake: revise handling of symbol export and static builds (#2912)

Bug fixes

• Fix O(n^2) performance patterns where n is the number of steps of a pipeline (#2820)

• Detect ESRI WKT better in certain circumstances (#2823)

• Fix performance issue on pipeline instanciation of huge (broken) pipelines (#2824)

• Make sure to re-order projection parameters according to their canonical order if needed (#2842)

• Fix database access across fork() when SQLite3 doesn't use pread64 (#2845)

• Fix error in implementation of Inverse ellipsoidal orthographic projection that cause convergence to sometimes fail (#2853)

• Fix handling of edge-case coordinates in invers ortho ellipsoidal oblique (#2855)

• proj_normalize_for_visualization(): set input and output units when there are several alternative transformations (#2867)

• CRS::identify(): fix ignoring CS order when identifying a geodetic CRS by a PROJ string with just the ellipsoid (#2881)

• Fix CRS Equality with PROJ parameter order (#2887)

• WKT concatenated operation parsing: fix when a axis order reversal conversion is the first or last operation (#2891)

• WKT1 parser: recognize Lambert_Conformal_Conic as projection name for LCC 1SP or 2SP (#2893)

• CMake: Always build gie if testing is requested (#2899)

• Geographic 3D CRS: allow to export to WKT1:ESRI if only the GEOGCS is known (and thus extrapolating a VERTCS) (#2902)

• lib_proj.cmake: add a PROJ::proj alias and add BUILD_INTERFACE include directories, so that proj can be used as a subdirectory of a larger project (#2913)

8.1.1 Release notes

Updates

• EPSG Database updated to version 10.028 (#2773)

Bug Fixes

• Include algorithm header file to avoid build errors on Alpine Linux (#2769)

• CMake: fix installation of executables on iOS (#2766)

• Associate extents to transformations of CRS's that include GEOIDMODEL (#2769)

• Logging: avoid some overhead when logging is not enabled (#2775)

• ortho: remove useless and invalid log trace (#2777)

• CMake: remove external nlohmann_json from INTERFACE_LINK_LIBRARIES target (#2781)

• createOperations(): fix SourceTargetCRSExtentUse::NONE mode (#2783)

• GeoTIFF grid reading: perf improvements (#2788)

• Conversion::createUTM(): avoid integer overflow (#2796)

• Inverse laea ellipsoidal: return PROJ_ERR_COORD_TRANSFM_OUTSIDE_PROJECTION_DOMAIN when appropriates (#2801)

• Make sure that proj_crs_promote_to_3D returns a derived CRS (#2806)

• createOperations(): fix missing deg<-->rad conversion when transforming with a CRS that has a fallback-to-PROJ4-string behaviour and is a BoundCRS of a GeographicCRS (#2808)

• WKT2 import/export: preserve PROJ.4 CRS extension string in REMARKS[] (#2812)

• BoundCRS: accept importing/exporting in WKT2 and PROJJSON the scope/area/extent/id attributes (#2815)

• ConcatenatedOperation::fixStepsDirection(): fix bad chaining of steps when inverse map projection is involved in non-final step (#2819)

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)

8.0.1 Release Notes

Updates

• Database: update to EPSG v10.018 (#2636)
• Add transformations for CHGeo2004, Swiss geoid model (#2604)
• Additions to the norwegian NKG2020 transformation (#2600)

Bug fixes

• pj_vlog(): fix buffer overflow in case of super lengthy error message (#2693)
• Revert "proj_create_crs_to_crs_from_pj(): do not use PROJ_SPATIAL_CRITERION_PARTIAL_INTERSECTION if area is specified" (#2679)
• UTM: error out when value of +zone= is not an integer (#2672)
• getCRSInfoList(): make result order deterministic (by increasing auth_name,
  code) (#2661)
• createOperation(): make sure no to discard deprecated operations if the
  replacement uses an unknow grid (#2623)
• Fix build on Solaris 11.4 (#2621)
• Add mapping of ESRI Equal_Area projection method to EPSG (#2612)
• Fix incorrect EPGS extent code for EPSG:7789>EPSG:4976 NKG transformation (#2599)
• fix wrong capitalization of CHENyx06_ETRS.gsb (#2597)
• createOperations(): improve handling of vertical transforms when
  when compound CRSs are used (#2592)
• CRS::promoteTo3D(): propagate the extent from the 2D CRS (#2589)
• createFromCRSCodesWithIntermediates(): improve performance when there is
  no match (#2583)
• Fix proj_clone() to work on 'meta' coordinate operation PJ* objects that
  can be returned by proj_create_crs_to_crs() (#2582)
• add PROJ_COMPUTE_VERSION, PROJ_VERSION_NUMBER,
  PROJ_AT_LEAST_VERSION macros (#2581)
• Make proj_lp_dist() and proj_geod() work on a PJ* CRS object (#2570)
• Fix gcc 11 -Wnonnull compilation warnings (#2559)
• Fix use of uninitialized memory in gie tests (#2558)
• createOperations(): fix incorrect height transformation between 3D promoted RGF93 and CH1903+ (#2555)

8.0.0 Release Notes

With the release of PROJ 8 the proj_api.h API is finally removed. See
https://proj.org/development/migration.html for more info on how to migrate
from the old to the proj.h API.

With the removal of proj_api.h it has been possible to simplify error codes
and messages given by the software. The error codes are exposed in the API.

Several improvements has been made to the command line utilities as well as
tweaks in the underlying API.

Updates

• Public header file proj_api.h removed (#837)

• Improved accuracy of the Mercator projection (#2397)

• Copyright statement wording updated (#2417)

• Allow cct to instantiate operations via object codes or names (#2419)

• Allow @filename syntax in cct (#2420)

• Added geocentric->topocentric conversion (+proj=topocentric) (#2444)

• Update GeographicLib to version 1.51 (#2445)

• Added option to allow export of Geographic/Projected 3D CRS
  in WKT1_GDAL (#2450)

• Added --area and --bbox options in cs2cs to restrict candidate
  coordinate operations (#2466)

• Added build time option to make PROJ_LIB env var tested last (#2476)

• Added --authority switch in cs2cs to control where coordinate operations
  are looked for. C API function proj_create_crs_to_crs_from_pj() updated
  accordingly (#2477)

• Error codes revised and exposed in the public API (#2487)

• Added --accuracy options to projinfo. C API function
  proj_create_crs_to_crs_from_pj() updated accordingly (#2488)

• Added proj_crs_is_derived() function to C API (#2496)

• Enabled linking against static cURL on Windows (#2514)

• Updated ESRI CRS database to 12.7 (10.8.1/2.6) (#2519)

• Allow a WKT BoundCRS to use a PROJ string transformation (#2521)

• Update to EPSG v10.015 (#2539)

• Default log level set to PJ_LOG_ERROR (#2542)

• CMake installs a pkg-config file proj.pc, where supported (#2547)

Bug fixes

• Do not restrict longitude to [-90;90] range in spherical transver Mercator
  forward projection (#2471)

• createOperations(): fix Compound to Geog3D/Projected3D CRS with non-metre ellipsoidal height (#2500)

• Avoid error messages to be emitted log level is set to PJ_LOG_NONE (#2527)

• Close database connection when autoclose set to True (#2532)

Updates

• Add metadata with the version number of the database layout (#2474)

• Split coordinateoperation.cpp and test_operation.cpp in several parts (#2484)

• Update to EPSG v10.008 (#2490)

• Added the NKG 2008 and 2020 transformations in proj.db (#2495)

Bug fixes

• Set CURL_ENABLED definition on projinfo build (#2405)

• createBoundCRSToWGS84IfPossible(): make it return same result with a CRS
  built from EPSG code or WKT1 (#2412)

• WKT2 parsing: several fixes related to map projection parameter units (#2428)

• createOperation(): make it work properly when one of the CRS is a BoundCRS of
  a DerivedGeographicCRS (+proj=ob_tran +o_proj=lonlat +towgs84=....) (#2441)

• WKT parsing: fix ingestion of WKT with a Geocentric CRS as the base of the
  projected CRS (#2443)

• GeographicCRS::_isEquivalentTo(EQUIVALENT_EXCEPT_AXIS_ORDER_GEOGCRS):
  make it work when comparing easting,northing,up and northing,easting,up (#2446)

• createOperation(): add a ballpark vertical transformation when dealing
  with GEOIDMODEL[] (#2449)

• Use same arguments to printf format string for both radians and degrees in
  output by cct (#2453)

• PRIMEM WKT handling: fixes on import for 'sexagesimal DMS' or from WKT1:GDAL/ESRI
  when GEOGCS UNIT != Degree; morph to ESRI the PRIMEM name on export (#2455)

• createObjectsFromName(): in exact match, make looking for 'ETRS89 / UTM zone 32N'
  return only the exact match (#2462)

• Inverse tmerc spherical: fix wrong sign of latitude when lat_0 is used (#2469)

• Add option to allow export of Geographic/Projected 3D CRS in WKT1_GDAL (#2470)

• Fix building proj.db with SQLite built with -DSQLITE_DQS=0 (#2480)

• Include JSON Schema files in CMake builds (#2485)

• createOperations(): fix inconsistent chaining exception when transforming from BoundCRS of projected CRS based on NTF Paris to BoundCRS of geog CRS NTF Paris (#2486)

Updates

Command line tools

• Add multi-line PROJ string export capability, and use it by default in
  projinfo (unless --single-line is specified) (#2381)

Coordinate operations

• +proj=col_urban projection, implementing a EPSG projection method
  used by a number of projected CRS in Colombia (#2395)

• +proj=tinshift for triangulation-based transformations (#2344)

• Added ellipsoidal formulation of +proj=ortho (#2361)

Database

• Update to EPSG 10.003 and make code base robust to dealing with
  WKT CRS with DatumEnsemble (#2370)

• Added Finland tinshift operations (#2392)

• Added transformation from JGD2011 Geographic 3D to JGD2011
  height using GSIGEO2011 (#2393)

• Improve CompoundCRS identification and name morphing in VerticalCRS
  with ESRI WKT1 (#2386)

• Added OGC:CRS27 and OGC:CRS83 CRS entries for NAD27 and NAD83
  in longitude, latitude order (#2350)

API

• Added temporal, engineering, and parametric datum
  PJ_TYPE enumerations (#2274)

• Various improvements to context handling (#2329, #2331)

• proj_create_vertical_crs_ex(): add a ACCURACY option to provide
  an explicit accuracy, or derive it from the grid name if it is
  known (#2342)

• proj_crs_create_bound_crs_to_WGS84(): make it work on
  verticalCRS/compoundCRS such as EPSG:4326+5773 and
  EPSG:4326+3855 (#2365)

• promoteTo3D(): add a remark with the original CRS identifier (#2369)

• Added proj_context_clone (#2383)

Bug fixes

• Avoid core dumps when copying contexts in certain scenarios (#2324)

• proj_trans(): reset errno before attemptying a retry with a new
  coordinate operation (#2353)

• PROJJSON schema corrected to allow prime meridians values with
  explicitly stating a unit (degrees assumed) (#2354)

• Adjust createBoundCRSToWGS84IfPossible() and operation filtering
  (for POSGAR 2007 to WGS84 issues) (#2357)

• createOperations(): several fixes affecting NAD83 -> NAD83(2011) (#2364)

• WKT2:2019 import/export: handle DATUM (at top level object) with PRIMEM

• WKT1_ESRI: fix import and export of CompoundCRS (#2389)

Updates

• Added various Brazillian grids to the database #2277

• Added geoid file for Canary Islands to the database #2312

• Updated EPSG database to version 9.8.15 #2310

Bug fixes

• WKT parser: do not raise warning when parsing a WKT2:2015 TIMECRS
  whose TIMEUNIT is at the CS level, and not inside #2281

• Parse '+proj=something_not_latlong +vunits=' without +geoidgrids as a
  Projected3D CRS and not a compound CRS with a unknown datum #2289

• C API: Avoid crashing due to missing SANITIZE_CTX() in entry points #2293

• CMake build: Check "target_clones" before use #2297

• PROJ string export of +proj=krovak +czech: make sure we export +czech… #2301

• Helmert 2D: do not require a useless +convention= parameter #2305

• Fix a few spelling errors ("vgridshit" vs. "vgridshift") #2307

• Fix ability to identify EPSG:2154 as a candidate for 'RGF93_Lambert_93' #2316

• WKT importer: tune for Oracle WKT and 'Lambert Conformal Conic' #2322

• Revert compiler generated Fused Multiply Addition optimized routines #2328

Updates

• New projections:

  o Add square conformal projections from libproject:

  • Adams Hemisphere in a Square
  • Adams World in a Square I
  • Adams World in a Square II
  • Guyou
  • Pierce Quincuncial
    (#2148)

  o Adams Square II: map ESRI WKT to PROJ string, and implement iterative
  inverse method (#2157)

  o Added IGH Oceanic View projection (#2226)

  o Add wink2 inverse by generic inversion of forward method (#2243)

• Database:

  o Update to EPSG 9.8.12, ESRI 10.8.1 and import scope and remarks for
  conversion (#2238) (#2267)

  o Map the Behrman projection to cae when converting ESRI CRSes (#1986)

  o Support conversion of Flat_Polar_Quartic projection method (#1987)

  o Register 4 new Austrian height grids (see https://github.com/OSGeo/PROJ-data/pull/13)
  and handle 'Vertical Offset by Grid Interpolation (BEV AT)' method (#1989)

  o Add ESRI projection method mappings for Mercator_Variant_A, Mercator_Variant_B
  and Transverse_Cylindrical_Equal_Area and various grid mappings (#2020) (#2195)

  o Map ESRI Transverse_Mercator_Complex to Transverse Mercator (#2040)

  o Register grids for New Caledonia (see https://github.com/OSGeo/PROJ-data/pull/16) (#2051) (#2239)

  o Register NZGD2000 -> ITRF96 transformation for NZGD2000 database (#2248)

  o Register geoid file for UK added
  (see https://github.com/OSGeo//PROJ-data/pull/25() (#2250)

  o Register Slovakian geoid transformations with needed code changes (#2259)

  o Register Spanish SPED2ETV2 grid for ED50->ETRS89 (#2261)

• API:

  o Add API function proj_get_units_from_database() (#2065)

  o Add API function proj_get_suggested_operation() (#2068)

  o Add API functions proj_degree_input() and proj_degree_output() (#2144)

  o Moved proj_context_get_url_endpoint & proj_context_get_user_writable_directory
  from proj_experimental.h to proj.h (#2162)

  o createFromUserInput(): allow compound CRS with the 2 parts given by names,
  e.g. 'WGS 84 + EGM96 height' (#2126)

  o createOperations(): when converting CompoundCRS<-->Geographic3DCrs, do not
  use discard change of ellipsoidal height if a Helmert transformation is
  involved (#2227)

  o proj_list_units() deprecated, superceeded by proj_get_units_from_database()

  o proj_list_angular_units() deprecated, superceeded by proj_get_units_from_database()

• Optimizations:

  o tmerc/utm: add a +algo=auto/evenden_snyder/poder_engsager parameter (#2030)

  o Extended tmerc (Poder/Engsager): speed optimizations (#2036)

  o Approximate tmerc (Snyder): speed optimizations (#2039)

  o pj_phi2(): speed-up computation (and thus inverse ellipsoidal Mercator and LCC) (#2052)

  o Inverse cart: speed-up computation by 33% (#2145)

  o Extended tmerc: speed-up forward path by ~5% (#2147)

• Various:

  o Follow PDAL's CMake RPATH strategy (#2009)

  o WKT import/export: add support for WKT1_ESRI VERTCS synta (#2024)

  o projinfo: add a --hide-ballpark option (#2127)

  o gie: implement a strict mode with (#2168)

  o Allow importing WKT1 COMPD_CS with a VERT_DATUM[Ellipsoid,2002] (#2229)

  o Add runtime checking that sqlite3 is >= 3.11 (#2235)

Bug fixes

o createOperations(): do not remove ballpark transformation if there are only grid
based operations, even if they cover the whole area of use (#2155)

o createFromProjString(): handle default parameters of '+krovak +type=crs', and
handle +czech correctly (#2200)

o ProjectedCRS::identify(): fix identification of EPSG:3059 (#2215)

o Database: add a 'WGS84' alias for the EPSG:4326 CRS (#2218)

o Fixes related to CompoundCRS and BoundCRS (#2222)

o Avoid 2 warnings about missing database indices (#2223)

o Make projinfo --3d --boundcrs-to-wgs84 work better (#2224)

o Many fixes regarding BoundCRS, CompoundCRS, Geographic3D CRS with
non-metre units (#2234)

o Fix identification of (one of the) ESRI WKT formulations of EPSG:3035 (#2240)

o Avoid using deprecated and removed Windows API function with Mingw32 (#2246)

o normalizeForVisualization(): make it switch axis for EPSG:5482
(RSRGD2000 / RSPS2000) (#2256)

o Fix access violation in proj_context_get_database_metadata (#2260)

o Fail gracefully when calling API functions with invalid input (#2272)

Updates

• Database: update to EPSG v9.8.9 #2141

Bug fixes

• Make tests independent of proj-datumgrid (#1995)

• Add missing projection property tables (#1996)

• Avoid crash when running against SQLite3 binary built with
  -DSQLITE_OMIT_AUTOINIT (#1999)

• createOperations(): fix wrong pipeline generation with CRS that has +nadgrids=
  and +pm= (#2002)

• Fix bad copy&replace pattern on HEALPix and rHEALPix projection names (#2007)

• createUnitOfMeasure(): use full double resolution for the conversion
  factor (#2014)

• Update README with info on PROJ-data (#2015)

• utm/ups: make sure to set errno to PJD_ERR_ELLIPSOID_USE_REQUIRED if
  es==0 (#2045)

• data/Makefile.am: remove bashism (#2048)

• ProjectedCRS::identify(): tune it to better work with ESRI WKT
  representation of EPSG:2193 (#2059)

• Fix build with gcc 4.8.5 (#2066)

• Autotools/pkg-conf: Define datarootdir (#2069)

• cs2cs: don't require +to for '{source_crs} {target_crs} filename...'
  syntax (#2081)

• CMake: fix bug with find_package(PROJ) with macOS (#2082)

• ESRI WKT import / identification: special case for
  NAD_1983_HARN_StatePlane_Colorado_North_FIPS_0501 with Foot_US unit (#2088)

• ESRI WKT import / identification: special case for
  NAD_1983_HARN_StatePlane_Colorado_North_FIPS_0501 with Foot_US unit (#2089)

• EngineeringCRS: when exporting to WKT1_GDAL, output unit and axis (#2092)

• Use jtsk03-jtsk horizontal grid from CDN (#2098)

• CMake: prefer to use use PROJ_SOURCE_DIR and PROJ_BINARY_DIR (#2100)

• Fix wrong grids file name in esri.sql (#2104)

• Fix identification of projected CRS whose name is close but not strictly
  equal to a ESRI alias (#2106)

• Fix working of Helmert transform between the horizontal part of
  2 compoundCRS (#2111)

• Database: fix registration of custom entries of grid_transformation_custom.sql
  for geoid grids (#2114)

• ESRI_WKT ingestion: make sure to identify to non-deprecated EPSG entry when
  possible (#2119)

• Make sure that importing a Projected 3D CRS from WKT:2019 keeps the base
  geographic CRS as 3D (#2125)

• createOperations(): improve results of compoundCRS to compoundCRS case (#2131)

• hgridshift/vgridshift: defer grid opening when grid has already
  been opened (#2132)

• Resolve a few shadowed declaration warnings (#2142)

• ProjectedCRS identification: deal with switched 1st/2nd std parallels for
  LCC_2SP(#2153)

• Fix Robinson inverse projection (#2154)

• createOperations(): do not remove ballpark transformation if there are only
  grid based operations, even if they cover the whole area of use (#2156)

• createFromCoordinateReferenceSystemCodes(): 'optimization' to avoid using
  C++ exceptions (#2161)

• Ingestion of WKT1_GDAL: correctly map 'Cylindrical_Equal_Area' (#2167)

• Add limited support for non-conformant WKT1 LAS COMPD_CS[] (#2172)

• PROJ4 string import: take into correctly non-metre unit when the string
  looks like the one for WGS 84 / Pseudo Mercator (#2177)

• io.hpp: avoid dependency to proj_json_streaming_writer.hpp (#2184)

• Fix support of WKT1_GDAL with netCDF rotated pole formulation (#2186)