News
9.5.1. Release Notes
December 1st 2024
Updates
Bug fixes
findsOpsInRegistryWithIntermediate(): Restrict to using known source/target CRS that have the same originating authority (#4252)
isTimeDependent(): Do not mark "static" Coordinate Frame helmert transformations as time-dependent, only time-dependent ones (#4259)
Fix clang-19 "warning: empty paragraph passed to '@throw' command [-Wdocumentation]" (#4263)
WKT importer: fix
nullptr
dereference on invalidVERTCS[]
(#4266)Fixed
sql_filelist.cmake
relative path issue (#4296)Fail consistently on network error and grid transformations (#4302)
Fix
-Wshadow
warnings betweenparammappings.cpp
andsingleoperation.cpp
with unity builds (#4304)Removed leftover setting of
CMAKE_REQUIRED_FLAGS
(#4322)WKT1 ESRI export: fix wrong mapping of Lambert Cylindrical Equal Area to Behrmann (#4328)
9.5.0 Release Notes
Septemper 15th 2024
Updates
Database: add constraint for unicity of CRS and operation names (#4071)
Make a few more functions that accept a
PJ*
to actually acccept aconst PJ*
(#4074)Database: Increase consistency in trigger checks (#4080)
Speed-up
+proj=cart +inv
(#4087)Added EPSG:9656 "Cartesian Grid Offsets" operation method, and imported related records (#4094)
Add a
WKTParser::grammarErrorList()
method so thatproj_create_from_wkt()
can behave as documented (#4108)
CRS::stripVerticalComponent()
: Redirect it todemoteTo2D(std::string(), nullptr)
(#4127)Add
proj_context_set_user_writable_directory()
to public API (#4144)CMake: for Windows builds, defaults PROJ DLL to be just
proj_${PROJ_MAJOR_VERSION}.dll
(#4167)Add
toWGS84AutocorrectWrongValues()
method and use it in PROJ.4 and WKT1 CRS import (#4172)WKT import: add support for Oracle WKT "Albers_Conical_Equal_Area" spelling (#4181)
Limit number of C++ exceptions thrown & caught internally (#4183)
Database: update to EPSG 11.016 (#4241)
CMake: add option
EMBED_PROJ_DATA_PATH
(#4207)Add Inverse to Icosahedral Snyder Equal-Area (ISEA) projection (#4211)
projinfo: Add 2 args equivalent to usage of -s and -t (#4218)
CMake: add
TESTING_USE_NETWORK
configure option (#4220)Add
PROJ_ERR_COORD_TRANSFM_MISSING_TIME
andproj_coordoperation_requires_per_coordinate_input_time()
(#4221)Add new Conversion "Local Orthographic" (#4228, #4229)
Add data/ITRF2020 with ITRF2020 to ITRFother, and ITRF2020 plate motion models (#4235)
Bug fixes
Fix
imoll
andimoll_o
zone calculations to correct inverse transformations near the "seams" (#4159)Fix wrong EPSG conversion code for UTM south (#4166)
BoundCRS::exportToPROJ()
: handle case of NADCON conus grid (#4168)
+proj=gridshift
: make projected grids work with PROJ_NETWORK=ON (#4174)
createOperations()
: make it work when transforming from/to a CompoundCRS with a DerivedVerticalCRS with ellipsoidal height (#4176)Support default context as
nullptr
inCoordinateTransformer
(#4177)cct: emit error message and return error code when not being able to open input file (#4200)
Fix race condition surrounding DB reopening during fork (#4231)
GeographicBoundingBox::create()
: accept degenerate bounding box reduced to a point or a line (#4237)
createOperation()
: tune so that ITRF2000->ETRS89 does not return only NKG grid based operations but also time-dependent Helmert (#4244)
9.4.1 Release Notes
June 1st 2024
Updates
Bug fixes
DatabaseContext::lookForGridInfo()
: do not trigger network activity in PROJ_GRID_AVAILABILITY_KNOWN_AVAILABLE mode when all grids are known (#4090)Retry "Connection reset by peer" (#4107)
Use unique names for NKG transformations (#4111)
proj_create()
/proj_create_from_database()
: recall CRS AUTH:CODE in error message (#4114)
DerivedProjectedCRS
: deal with lack of explicit CS in BASEPROJCRS in WKT (#4139)
proj_symbol_rename.h
: update with current symbols (#4145)Improve detection of compatible/incompatible celestial bodies (#4150)
9.4.0 Release Notes
March 1st 2024
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
toproj.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
9.3.1 Release Notes
December 1st 2023
Updates
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
onNN_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)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 Geog3D 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 instatic.cpp
to avoid 'static initialization fiasco' (#3956)horner: allow arbitrary input type of coordinate (#3961)
9.3.0 Release Notes
September 1st 2023
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)
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
June 1st 2023
Database updates
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
: accepthydroid_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 relaxisEquivalentTo()
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()
: setPROJ_ERR_COORD_TRANSFM_NO_OPERATION
error when failing inONLY_BEST=YES
mode (#3730)tinshift
: raise maximum size of JSON file to 100 MB (#3736)
9.2.0 Release Notes
March 1st 2023
Updates
Database
Projections
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
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
C/C++ API
C API: add
proj_get_domain_count()
,proj_get_area_of_use_ex()
andproj_get_scope_ex()
(#3588)Added explicit
NaN
handling toproj_trans()
and gie (#3603)
DEPRECATIONS
The following functions have been deprecated and will be removed in a future version.
C API function
proj_rtodms()
. Useproj_rtodms2()
instead (#3431)C experimental API function
proj_create_conversion_tunisia_mapping_grid()
. Useproj_create_conversion_tunisia_mining_grid()
instead (#3559)C++ API function
createTunisiaMapingGrid()
. UsecreateTunisiaMiningGrid()
instead (#3559)
CMake
Security improvements
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()
forDerivedProjectedCRS
(#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 withFORCE_OVERb=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)
9.1.1 Release Notes
December 1st 2022
Updates
Database: register
at_bev_AT_GIS_GRID_2021_09_28
grid (#3442)
Bug fixes
Implement
alterGeodeticCRS
andstripVerticalComponent
forDerivedProjected
(#3482)Various improvements to handling of
DerivedProjectedCRS
(#3482, #3477 , #3342 , #3319, #3317)Add missing
<cstdint>
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|long|>180deg
(#3427)eqdc
projection: avoid floating point division by zero in non-nominal case (#3415)createOperations()
: fix issues when transforming betweenGeog3D
andDerivedGeog3D
CRS withGeographic3D
offsets method (#3411)VerticalCRS::_isEquivalentTo()
: do not considerVerticalCRS
andDerivedVerticalCRS
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 accountFORCE_OVER
property from source operation (#3350)Link geodtest against libm when available (#3341)
9.1.0 Release Notes
September 1st 2022
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:
Coordinate Operations:
Optimizations:
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 deprecatePROJ_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)
9.0.1 Release Notes
June 15th 2022
Database updates
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 GeodeticReferenceFrame 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()
: fixCompoundCRS[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 (#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
March 1st 2022
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:
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 aca_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()
: reportPJ_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
January 1st 2022
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 for vertical transformations (#2937)createOperationsCompoundToCompound()
: fix null pointer dereference when connection toproj.db
doesn't exist. (#2938)Fix
windows.h
conflict withCriterion::STRICT
(#2950)Cache result of
proj_get_type()
to help for performance ofproj_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
November 1st 2021
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: Drop Autotools, maintain CMake.
Note also that the "CMake: revise handling of symbol export and static builds" change mentioned below may require changes for users of the library on Windows.
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
andvertical_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 forDerivedProjectedCRS
(#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
andgenerate_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)
This requires changes for users of static builds on Windows that do not use CMake config files. The empty
PROJ_DLL=
definition must now be defined when building against a static build of PROJ. For users of dynamic builds on Windows, thePROJ_MSVC_DLL_IMPORT
definition is no longer needed.
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 instantiation 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
pread[64]()
(#2845)Fix error in implementation of Inverse ellipsoidal orthographic projection that cause convergence to sometimes fail (#2853)
Fix handling of edge-case coordinates in inverse 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
September 1st 2021
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)
reateOperations(): 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 behavior 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
July 1st 2021
Updates
Database
Update to EPSG v10.027 (#2751)
Decrease DB size by using
WITHOUT ROWID
tables (#2730) (#2647)Add a
ANALYZE
step duringproj.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 :c:func`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)
Added
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 externalnlohmann/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 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 ifproj_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
May 5th 2021
Updates
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 unknown 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 operationPJ*
objects that can be returned byproj_create_crs_to_crs()
(#2582)add
PROJ_COMPUTE_VERSION
,PROJ_VERSION_NUMBER
,PROJ_AT_LEAST_VERSION
macros (#2581)Make
proj_lp_dist()
andproj_geod()
work on aPJ*
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
March 1st 2021
With the release of PROJ 8 the proj_api.h
API is finally removed. See
Version 4 to 6 API Migration 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)
Added Geocentric to 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 functionproj_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 functionproj_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 transverse 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)
7.2.1 Release Notes
January 1st 2021
Updates
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 withGEOIDMODEL[]
(#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)
7.2.0 Release Notes
November 1st 2020
Updates
Command line tools
Coordinate operations
Colombia Urban projection, implementing a EPSG projection method used by a number of projected CRS in Colombia (#2395)
Triangulated Irregular Network based transformation for triangulation-based transformations (#2344)
Added ellipsoidal formulation of Orthographic (#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 aACCURACY
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)
7.1.1 Release Notes
September 1st 2020
Updates
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)
7.1.0 Release Notes
July 1st 2020
Updates
New transformations
Add a +proj=defmodel transformation for multi-component time-based deformation models (#2206):
New projections
Database
Update to EPSG 9.8.12, ESRI 10.8.1 and import scope and remarks for conversion (#2238) (#2267)
Map the Behrmann projection to
cae
when converting ESRI CRSes (#1986)Support conversion of Flat_Polar_Quartic projection method (#1987)
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)
Add ESRI projection method mappings for Mercator_Variant_A, Mercator_Variant_B and Transverse_Cylindrical_Equal_Area and various grid mappings (#2020) (#2195)
Map ESRI Transverse_Mercator_Complex to Transverse Mercator (#2040)
Register grids for New Caledonia (see https://github.com/OSGeo/PROJ-data/pull/16) (#2051) (#2239)
Register NZGD2000 -> ITRF96 transformation for NZGD2000 database (#2248)
Register geoid file for UK added (see https://github.com/OSGeo//PROJ-data/pull/25() (#2250)
Register Slovakian geoid transformations with needed code changes (#2259)
Register Spanish SPED2ETV2 grid for ED50->ETRS89 (#2261)
API
Add API function
proj_get_units_from_database()
(#2065)Add API function
proj_get_suggested_operation()
(#2068)Add API functions
proj_degree_input()
andproj_degree_output()
(#2144)Moved
proj_context_get_url_endpoint()
&proj_context_get_user_writable_directory()
fromproj_experimental.h
toproj.h
(#2162)createFromUserInput()
: allow compound CRS with the 2 parts given by names, e.g. 'WGS 84 + EGM96 height' (#2126)createOperations()
: when converting CompoundCRS<-->Geographic3DCrs, do not use discard change of ellipsoidal height if a Helmert transformation is involved (#2227)
Optimizations
tmerc/utm
: add a +algo=auto/evenden_snyder/poder_engsager parameter (#2030)Extended
tmerc
(Poder/Engsager): speed optimizations (#2036)Approximate
tmerc
(Snyder): speed optimizations (#2039)pj_phi2()
: speed-up computation (and thus inverse ellipsoidal Mercator and LCC) (#2052)Inverse
cart
: speed-up computation by 33% (#2145)Extended
tmerc
: speed-up forward path by ~5% (#2147)
Various
Follow PDAL's CMake RPATH strategy (#2009)
WKT import/export: add support for WKT1_ESRI VERTCS syntax (#2024)
gie: implement a strict mode with
<gie-strict> </gie-strict>
(#2168)Allow importing WKT1 COMPD_CS with a VERT_DATUM[Ellipsoid,2002] (#2229)
Add runtime checking that sqlite3 is >= 3.11 (#2235)
Bug fixes
createOperations()
: do not remove ballpark transformation if there are only grid based operations, even if they cover the whole area of use (#2155)createFromProjString()
: handle default parameters of '+krovak +type=crs', and handle+czech
correctly (#2200)ProjectedCRS::identify()
: fix identification of EPSG:3059 (#2215)Database: add a 'WGS84' alias for the EPSG:4326 CRS (#2218)
Fixes related to CompoundCRS and BoundCRS (#2222)
Avoid 2 warnings about missing database indices (#2223)
Make
projinfo --3d --boundcrs-to-wgs84
work better (#2224)Many fixes regarding BoundCRS, CompoundCRS, Geographic3D CRS with non-metre units (#2234)
Fix identification of (one of the) ESRI WKT formulations of EPSG:3035 (#2240)
Avoid using deprecated and removed Windows API function with Mingw32 (#2246)
normalizeForVisualization()
: make it switch axis for EPSG:5482 (RSRGD2000 / RSPS2000) (#2256)Fix access violation in
proj_context_get_database_metadata()
(#2260)
7.0.1 Release Notes
May 1st 2020
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 toPJD_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 toproj_json_streaming_writer.hpp
(#2184)Fix support of WKT1_GDAL with netCDF rotated pole formulation (#2186)
6.3.2 Release Notes
May 1st 2020
Bug fixes
validateParameters()
: fix false-positive warning on Equidistant Cylindrical (#1947)proj_create_crs_to_cr()
: avoid potential reprojection failures when reprojecting area of use to source and target CRS (#1993)createOperations()
: fix wrong pipeline generation with CRS that has+nadgrids=
and+pm=
(#2003)Fix bad copy&replace pattern on HEALPix and rHEALPix projection names (#2006)
createUnitOfMeasure()
: use full double resolution for the conversion factor (#2013)data/Makefile.am
: remove bashism (#2047):cpp:func:
ProjectedCRS::identify
: tune it to better work with ESRI WKT representation of EPSG:2193 (#2058)EngineeringCRS: when exporting to WKT1_GDAL, output unit and axis (#2091)
Add missing entries in grid_alternatives for Portugal grids coming from ESRI entries (#2103)
Fix working of Helmert transform between the horizontal part of 2 compoundCRS (#2110)
ESRI_WKT ingestion: make sure to identify to non-deprecated EPSG entry when possible (#2118)
Make sure that importing a Projected 3D CRS from WKT:2019 keeps the base geographic CRS as 3D (#2124)
createOperations()
: improve results of compoundCRS to compoundCRS case (#2130)PROJ4 string import: take into correctly non-metre unit when the string looks like the one for WGS 84 / Pseudo Mercator (#2178)
Fix support of WKT1_GDAL with netCDF rotated pole formulation (#2187)
io.hpp
: avoid dependency toproj_json_streaming_writer.hpp
(#2188)
7.0.0 Release Notes
March 1st 2020
The major feature in PROJ 7 is significantly improved handling of gridded models. This was implemented in PROJ RFC 4: Remote access to grids and GeoTIFF grids. The main features of the RFC4 work is that PROJ now implements a new grid format, Geodetic TIFF grids, for exchanging gridded transformation models. In addition to the new grid format, PROJ can now also access grids online using a data store in the cloud.
The grids that was previously available via the proj-datumgrid packages are now available in two places:
As a single combined data archive including all available resource files
From the cloud via https://cdn.proj.org
In Addition, provided with PROJ is a utility called projsync that can be used download grids from the data store in the cloud.
The use of the new grid format and the data from the cloud requires that
PROJ is build against libtiff
and libcurl
. Both are optional dependencies
to PROJ but it is highly encouraged that the software is build against both.
Warning
PROJ 7 will be last major release version that includes the proj_api.h
header. The functionality in proj_api.h
is deprecated and only supported in
maintenance mode. It is inferior to the functionality provided by functions
in the proj.h
header and all projects still relying on proj_api.h
are encouraged
to migrate to the new API in proj.h
. See Version 4 to 6 API Migration.
for more info on how to migrate from the old to the new API.
Updates
Added new file access API to
proj.h
(#866)Updated the name of the most recent version of the WKT2 standard from WKT2_2018 to WKT2_2019 to reflect the proper name of the standard (#1585)
Improvements in transformations from/to WGS 84 (Gxxxx) realizations and vertical <--> geog transormations (#1608)
Update to version 1.50 of the geodesic library (#1629)
Promote
proj_assign_context()
toproj.h
fromproj_experimental.h
(#1630)Add rotation support to the HEALPix projection (#1638)
Add C function
proj_crs_create_bound_vertical_crs()
(#1689)Use Win32 Unicode APIs and expect all strings to be UTF-8 (#1765)
Improved name aliases lookup (#1827)
CMake: Employ better use of CTest with the
BUILD_TESTING
option (#1870)Grid correction: fix handling grids spanning antimeridian (#1882)
Remove legacy CMake target name
proj
(#1883)Add +proj=set operation to set component(s) of a coordinate to a fixed value (#1896)
Add EPSG records for 'Geocentric translation by Grid Interpolation (IGN)' (
gr3df97a.txt
) and map them to new +proj=xyzgridshift (#1897)Remove
null
grid file as it is now a special hardcoded case in grid code (#1898)Make
PROJ
the CMake project name (#1910)Use relative directory to locate PROJ resource files (#1921)
Bug fixes
Breaking changes
Reject NTV2 files where
GS_TYPE != SECONDS
(#1294)On Windows the name of the library is now fixed to
proj.lib
instead of encoding the version number in the library name (#1581)Require C99 compiler (#1624)
Remove deprecated JNI bindings (#1825)
Increase CMake minimum version from 3.5 to 3.9 (#1907)
6.3.1 Release Notes
February 11th 2020
Updates
Update the EPSG database to version 9.8.6
Database: add mapping for gg10_smv2.mnt and gg10_sbv2.mnt French grids
Database: add mapping for TOR27CSv1.GSB
Bug fixes
Fix wrong use of derivingConversionRef() that caused issues with use of +init=epsg:XXXX by GDAL (affecting R spatial libraries) or in MapServer
fix exporting CoordinateSystem to PROJ JSON with ID
projinfo: use No. abbreviation instead of UTF-8 character (#1828)
CompoundCRS::identify(): avoid exception when horiz/vertical part is a BoundCRS
createOperations(): fix dealing with projected 3D CRS whose Z units != metre
WKT1_GDAL export: limit datum name massaging to names matching EPSG (#1835)
unitconvert with mjd time format: avoid potential integer overflow (ossfuzz 20072)
ProjectedCRS::identify(): fix wrong identification of some ESRI WKT linked to units
Database: add a geoid_like value for proj_method column of grid_alternatives, fix related entries and simplify/robustify logic to deal with EPSG 'Geographic3D to GravityRelatedHeight' methods
Fix ingestion of +proj=cea with +k_0 (#1881)
Fix performance issue, affecting PROJ.4 string generation of EPSG:7842 (#1913)
Fix identification of ESRI-style datum names starting with D_ but without alias (#1911)
cart: Avoid discontinuity at poles in the inverse case (#1906)
Various updates to make regression test suite pass with gcc on i386 (#1906)
6.3.0 Release Notes
January 1st 2020
Updates
Database: tune accuracy of Canadian NTv1 file w.r.t NTv2 (#1812)
Modify verbosity level of some debug/trace messages (#1811)
projinfo: no longer call createBoundCRSToWGS84IfPossible() for WKT1:GDAL (#1810)
proj_trans()
: add retry logic to select other transformation if the best one fails. (#1809)BoundCRS::identify(): improvements to discard CRS that aren't relevant (#1802)
Database: update to IGNF v3.1.0 (#1785)
Build: Only export symbols if building DLL (#1773)
Database: update ESRI entries with ArcGIS Desktop version 10.8.0 database (#1762)
createOperations()
: chain operations whose middle CRSs are not identical but have the same datum (#1734)import/export PROJJSON: support a interpolation_crs key to geoid_model (#1732)
Database: update to EPSG v9.8.4 (#1725)
Build: require SQLite 3.11 (#1721)
Add support for GEOIDMODEL (#1710)
Better filtering based on extent and performance improvements (#1709)
Bug fixes
Horizontal grid shift: fix issue on iterative inverse computation when switching between (sub)grids (#1797)
createOperations()
: make filtering out of 'uninteresting' operations less aggressive (#1788)Make EPSG:102100 resolve to ESRI:102100 (#1786)
ob_tran
: restore traditional handling of+to_meter
withpj_transform()
and proj utility (#1783)CRS identification: use case insensitive comparison for authority name (#1780)
normalizeForVisualization()
and other methods applying on a ProjectedCRS: do not mess the derivingConversion object of the original object (#1746)createOperations()
: fix transformation computation from/to a CRS with+geoidgrids
and+vunits
!= m (#1731)Fix
proj_assign_context()
/pj_set_ctx()
with pipelines and alternative coord operations (#1726)Database: add an auxiliary concatenated_operation_step table to allow arbitrary number of steps (#1696)
Fix errors running gie-based tests in Debug mode on Window (#1688)
6.2.1 Release Notes
November 1st 2019
Updates
Update the EPSG database to version 9.8.2
Bug fixes
Fixed erroneous spelling of "Potsdam" (#1573)
Calculate y-coordinate correctly in Bertin 1953 in all cases (#1579)
proj_create_crs_to_crs_from_pj()
: make the PJ* arguments const PJ* (#1583)PROJStringParser::createFromPROJString(): avoid potential infinite recursion (#1574)
Avoid core dump when setting
ctx==NULL
in functionsproj_coordoperation_is_instantiable()
andproj_coordoperation_has_ballpark_transformation()
(#1590)createOperations()
: fix conversion from/to PROJ.4 CRS strings with non-ISO-kosher options and+towgs84
/+nadgrids
(#1602)proj_trans_generic()
: properly set coordinate time toHUGE_VAL
when no value is passed to the function (#1604)Fix support for
+proj=ob_tran +o_proj=lonlat/latlong/latlon
instead of only only allowing+o_proj=longlat
(#1601)Improve backwards compatibility of vertical transforms (#1613)
Improve emulation of deprecated
+init
style initialization (#1614)cs2cs: autopromote CRS to 3D when there's a mix of 2D and 3D (#1563)
Avoid divisions by zero in odd situations (#1620)
Avoid compile error on Solaris (#1639)
proj_create_crs_to_crs()
: fix when there are only transformations with ballpark steps (#1643)PROJ string CRS ingester: recognize more unit-less parameters, and general handling of
+key=string_value
parameters (#1645)Only call pkg-config in configure when necessary (#1652)
Azimuthal Equidistant: for spherical forward path, go to higher precision ellipsoidal case when the point coordinates are super close to the origin (#1654)
proj_create_crs_to_crs()
: remove elimination of Ballpark operations that caused transformation failures in some cases (#1665)createOperations()
: allow transforming from a compoundCRS of a bound verticalCRS to a 2D CRS (#1667)Avoid segfaults in case of out-of-memory situations (#1679)
createOperations()
: fix double vertical unit conversion from CompoundCRS to other CRS when the horizontal part of the projected CRS uses non-metre unit (#1683)(#1683)importFromWkt()
: fix axis orientation for non-standard ESRI WKT (#1690)
6.2.0 Release Notes
September 1st 2019
Updates
Support CRS instantiation of OGC URN's (#1505)
Expose scope and remarks of database objects (#1537)
EPSG Database updated to version 9.7.0 (#1558)
Added C API function proj_grid_get_info_from_database() (#1494)
Added C API function proj_operation_factory_context_set_discard_superseded() (#1534)
Added C API function proj_context_set_autoclose_database() (#1566)
Added C API function proj_create_crs_to_crs_from_pj() (#1567)
Added C API function proj_cleanup() (#1569)
Bug Fixes
Fixed build failure on Solaris systems (#1554)
6.1.1 Release Notes
July 1st 2019
Updates
Update EPSG registry to version 9.6.3 (#1485)
Bug Fixes
Take the passed authority into account when identifying objects (#1466)
Avoid exception when transforming from NAD83 to projected CRS using NAD83(2011) (#1477)
Avoid off-by-one reading of name argument if name of resource file has length 1 (#11489)
Do not include
PROJ_LIB
inproj_info().searchpath
when context search path is set (#1498)Use correct delimiter for the current platform when parsing PROJ_LIB (#1497)
Do not confuse 'ID74' CRS with WKT2 ID[] node (#1506)
WKT1 importer: do case insensitive comparison for axis direction (#1509)
Avoid compile errors on GCC 4.9.3 (#1512)
Make sure that pipelines including
+proj=ob_tran
can be created (#1526)
6.1.0 Release Notes
May 15th 2019
Updates
Include custom ellipsoid definitions from QGIS (#1137)
Add
-k ellipsoid
option to projinfo (#1338)Make cs2cs support 4D coordinates (#1355)
Update internal version of googletest to v1.8.1 (#1361)
Database update: EPSG v9.6.2 (#1462), IGNF v3.0.3, ESRI 10.7.0 and add operation_version column (#1368)
Add
proj_normalize_for_visualization()
that attempts to apply axis ordering as used by most GIS applications and PROJ <6 (#1387)Added noop operation (#1391)
Paths set by user take priority over
PROJ_LIB
for search paths (#1398)Reduced database size (#1438)
add support for compoundCRS and concatenatedOperation named from their components (#1441)
Bug fixes
Have gie return non-zero code when file can't be opened (#1312)
CMake cross-compilation fix (#1316)
Use 1st eccentricity instead of 2nd eccentricity in Molodensky (#1324)
Make sure to include grids when doing Geocentric to CompoundCRS with nadgrids+geoidgrids transformations (#1326)
Handle coordinates outside of bbox better (#1333)
Enable system error messages in command line automatically in builds (#1336)
Make sure to install projinfo man page with CMake (#1347)
Add data dir to pkg-config file proj.pc (#1348)
Fix GCC 9 warning about useless
std::move()
(#1352)Grid related fixes (#1369)
Make sure that ISO19111 C++ code sets pj_errno on errors (#1405)
vgridshift: handle longitude wrap-around for grids with 360deg longitude extent (#1429)
proj/cs2cs: validate value of
-f
parameter to avoid potential crashes (#1434)Many division by zero and similar bug fixes found by OSS Fuzz.
6.0.0 Release Notes
March 1st 2019
PROJ 6 has undergone extensive changes to increase its functional scope from a cartographic projection engine with so-called "early-binding" geodetic datum transformation capabilities to a more complete library supporting coordinate transformations and coordinate reference systems.
As a foundation for other enhancements, PROJ now includes a C++ implementation of the modelisation propopsed by the ISO-19111:2019 standard / OGC Abstract Specification Topic 2: "Referencing By Coordinates", for geodetic reference frames (datums), coordinate reference systems and coordinate operations. Construction and query of those geodetic objects is available through a new C++ API, and also accessible for the most part from bindings in the C API.
Those geodetic objects can be imported and exported from and into the OGC Well-Known Text format (WKT) in its different variants: ESRI WKT, GDAL WKT 1, WKT2:2015 (ISO 19162:2015) and WKT2:2018 (ISO 19162:2018). Import and export of CRS objects from and into PROJ strings is also supported. This functionality was previously available in the GDAL software library (except WKT2 support which is a new feature), and is now an integral part of PROJ.
A unified database of geodetic objects, coordinate reference systems and their metadata, and coordinate operations between those CRS is now available in a SQLite3 database file, proj.db. This includes definitions imported from the IOGP EPSG dataset (v9.6.0 release), the IGNF (French national mapping agency) geodetic registry and the ESRI projection engine database. PROJ is now the reference software in the "OSGeo C stack" for this CRS and coordinate operation database, whereas previously this functionality was spread over PROJ, GDAL and libgeotiff, and used CSV or other adhoc text-based formats.
Late-binding coordinate operation capabilities, that takes metadata such as area of use and accuracy into account, has been added. This can avoid in a number of situations the past requirement of using WGS84 as a pivot system, which could cause unneeded accuracy loss, or was not doable at all sometimes when transformation to WGS84 was not available. Those late-binding capabilities are now used by the proj_create_crs_to_crs() function and the cs2cs utility.
A new command line utility, projinfo, has been added to query information about a geodetic object of the database, import and export geodetic objects from/into WKT and PROJ strings, and display coordinate operations available between two CRSs.
Updates
Removed projects.h as a public interface (#835)
Deprecated the proj_api.h interface. The header file is still available but will be removed with the next major version release of PROJ. It is now required to define
ACCEPT_USE_OF_DEPRECATED_PROJ_API_H
before the interface can be used (#836)Removed support for the nmake build system (#838)
Removed support for the
proj_def.dat
defaults file (#201)C++11 required for building PROJ (#1203)
Added build dependency on SQLite 3.7 (#1175)
Added many functions to
proj.h
for handling ISO19111 functionality (#1175)Added C++ API exposing ISO19111 functionality (#1175)
Removed the
nad2bin
application. Now available in the proj-datumgrid git repository (#1236)Removed
proj_geocentric_latitude()
from proj.h API (#1170)Changed behavior of proj: Now only allow initialization of projections (#1162)
Changed behavior of tmerc: Now defaults to the Extended Transverse Mercator algorithm (
etmerc
). Old implementation available by adding+approx
(#404)Changed behavior: Default ellipsoid now set to GRS80 (was WGS84) (#1210)
Allow multiple directories in
PROJ_LIB
environment variable (#1281)Added Lambert Conic Conformal (2SP Michigan) projection (#1142)
Added Bertin1953 projection (#1133)
Added Tobler-Mercator projection (#1153)
Added Molodensky-Badekas transform (#1160)
Removed
+t_obs
parameter from helmert and deformation (#1264)Added
+dt
parameter to deformation as replacement for removed+t_obs
(#1264)
Bug fixes
Read
+towgs84
values correctly on locales not using dot as comma separator (#1136)Fixed file offset for reading of shift values in NTv1 files (#1144)
Avoid problems with
PTHREAD_MUTEX_RECURSIVE
when using CMake (#1158)Avoid raising errors when setting ellipsoid flattening to zero (#1191)
Fixed lower square calculations in rHealpix projection (#1206)
Allow Molodensky transform parameters to be zero (#1194)
Fixed wrong parameter in
ITRF2000
init file (#1240)Fixed use of grid paths including spaces (#1152)
Robinson: fix wrong values for forward path for latitudes >= 87.5, and fix inaccurate inverse method (#1172)
PROJ 5.2.0
September 15th 2018
Updates
Added support for deg, rad and grad in unitconvert (#1054)
Assume
+t_epoch
as time input when not otherwise specified (#1065)Added inverse Lagrange projection (#1058)
Added
+multiplier
option to vgridshift (#1072)Added Equal Earth projection (#1085)
Added "require_grid" option to gie (#1088)
Replace
transpose
option of Helmert transform with+convention
. From now on the convention used should be explicitly written. An error will be returned when using the +transpose option (#1091)Improved numerical precision of inverse spherical Mercator projection (#1105)
cct will now forward text after coordinate input to output stream (#1111)
Bug fixes
Do not pivot over WGS84 when doing cs2cs-emulation with geocent (#1026)
Do not scan past the end of the read data in
pj_ctx_fgets()
(#1042)Make sure
proj_errno_string()
is available in DLL (#1050)Respect +to_meter setting when doing cs2cs-emulation (#1053)
Fixed test failures related to GCC 8 (#1084)
Improved handling of +geoc flag (#1093)
Calculate correct projection factors for Webmercator (#1095)
cs2cs now always outputs degrees when transformed coordinates are in angular units (#1112)
PROJ 5.1.0
June 1st 2018
Updates
Function
proj_errno_string()
added toproj.h
API (#847)Validate units between pipeline steps and ensure transformation sanity (#906)
Print help when calling cct and gie without arguments (#907)
CITATION file added to source distribution (#914)
Webmercator operation added (#925)
Enhanced numerical precision of forward spherical Mercator near the Equator (#928)
Consistently return
NaN
values onNaN
input (#949)Removed unused
src/org_proj4_Projections.h
file (#956)Horizontal and vertical gridshift operations extended to the temporal domain (#1015)
Bug fixes
Handle
NaN
float cast overflow inPJ_robin.c
andnad_intr.c
(#887)Avoid overflow when Horner order is unreasonably large (#893)
Avoid unwanted NaN conversions in etmerc (#899)
Avoid memory failure in gie when not specifying x,y,z in gie files (#902)
Avoid memory failure when
+sweep
is initialized incorrectly in geos (#908)Return
HUGE_VAL
on erroneous input in ortho (#912)Handle commented lines correctly in cct (#933)
Avoid segmentation fault when transformation coordinates outside grid area in deformation (#934)
Avoid doing false easting/northing adjustments on cartesian coordinates (#936)
Thread-safe creation of proj mutex (#954)
Avoid errors when setting up geos with +lat_0!=0 (#986)
Do not interpolate node values at nodata value in vertical grid shifts (#1004)
Restrict Horner degrees to positive integer values to avoid memory allocation issues (#1005)
PROJ 5.0.1
March 1st 2018
Bug fixes
Handle ellipsoid change correctly in pipelines when
+towgs84=0,0,0
is set (#881)Handle the case where nad_ctable2_init returns NULL (#883)
Avoid shadowed declaration errors with old gcc (#880)
Expand
+datum
properly in pipelines (#872)Fail gracefully when incorrect headers are encountered in grid files (#875)
Improve roundtrip stability in pipelines using
+towgs84
(#871)Fixed typo in gie error codes (#861)
Numerical stability fixes to the geodesic package (#826 & #843)
Make sure that transient errors are returned correctly (#857)
Make sure that locally installed header files are not used when building PROJ (#849)
Fix inconsistent parameter names in
proj.h
/proj_4D_api.c
(#842)Make sure
+vunits
is applied (#833)Fix incorrect Web Mercator transformations (#834)
PROJ 5.0.0
February 1st 2018
This version of PROJ introduces some significant extensions and improvements to (primarily) the geodetic functionality of the system.
The main driver for introducing the new features is the emergence of dynamic reference frames, the increasing use of high accuracy GNSS, and the related growing demand for accurate coordinate transformations. While older versions of PROJ included some geodetic functionality, the new framework lays the foundation for turning PROJ into a generic geospatial coordinate transformation engine.
The core of the library is still the well established projection code. The new functionality is primarily exposed in a new programming interface and a new command line utility, cct (for "Coordinate Conversion and Transformation"). The old programming interface is still available and can - to some extent - use the new geodetic transformation features.
The internal architecture has also seen many changes and much improvement. So far, these improvements respect the existing programming interface. But the process has revealed a need to simplify and reduce the code base, in order to support sustained active development.
Therefore we have scheduled regular releases over the coming years which will gradually remove the old programming interface.
This will cause breaking changes with the next two major version releases, which will affect all projects that depend on PROJ (cf. section "deprecations" below).
The decision to break the existing API has not been easy, but has ultimately been deemed necessary to ensure the long term survival of the project. Not only by improving the maintainability immensely, but also by extending the potential user (and hence developer) community.
The end goal is to deliver a generic coordinate transformation software package with a clean and concise code base appealing to both users and developers.
Versioning and naming
For the first time in more than 25 years the major version number of the software is changed. The decision to do this is based on the many new features and new API. While backwards compatibility remains - except in a few rare corner cases - the addition of a new and improved programming interface warrants a new major release.
The new major version number unfortunately leaves the project in a bit of a conundrum regarding the name. For the majority of the life-time of the product it has been known as PROJ.4, but since we have now reached version 5 the name is no longer aligned with the version number.
Hence we have decided to decouple the name from the version number and from this version and onwards the product will simply be called PROJ.
In recognition of the history of the software we are keeping PROJ.4 as the name of the organizing project. The same project team also produces the datum-grid package.
In summary:
The PROJ.4 project provides the product PROJ, which is now at version 5.0.0.
The foundational component of PROJ is the library libproj.
Other PROJ components include the application proj, which provides a command line interface to libproj.
The PROJ.4 project also distributes the datum-grid package, which at the time of writing is at version 1.6.0.
Updates
Introduced new API in
proj.h
.The new API is orthogonal to the existing
proj_api.h
API and the internally usedprojects.h
API.The new API adds the ability to transform spatiotemporal (4D) coordinates.
Functions in the new API use the
proj_
namespace.Data types in the new API use the
PJ_
namespace.
Introduced the concept of "transformation pipelines" that makes possible to do complex geodetic transformations of coordinates by daisy chaining simple coordinate operations.
Introduced cct, the Coordinate Conversion and Transformation application.
Introduced gie, the Geospatial Integrity Investigation Environment.
Adopted terminology from the OGC/ISO-19100 geospatial standards series. Key definitions are:
At the most generic level, a coordinate operation is a change of coordinates, based on a one-to-one relationship, from one coordinate reference system to another.
A transformation is a coordinate operation in which the two coordinate reference systems are based on different datums, e.g. a change from a global reference frame to a regional frame.
A conversion is a coordinate operation in which both coordinate reference systems are based on the same datum, e.g. change of units of coordinates.
A projection is a coordinate conversion from an ellipsoidal coordinate system to a plane. Although projections are simply conversions according to the standard, they are treated as separate entities in PROJ as they make up the vast majority of operations in the library.
New operations
The pipeline operator (
pipeline
)- Transformations
Helmert transform (
helmert
)Horner real and complex polynomial evaluation (
horner
)Horizontal gridshift (
hgridshift
)Vertical gridshift (
vgridshift
)Molodensky transform (
molodensky
)Kinematic gridshift with deformation model (
deformation
)
- Conversions
Unit conversion (
unitconvert
)Axis swap (
axisswap
)
- Projections
Central Conic projection (
ccon
)
Significant documentation updates, including
Overhaul of the structure of the documentation
A better introduction to the use of PROJ
a complete rewrite of the section on geodesic calculations
Figures for all projections
New "free format" option for operation definitions, which permits separating tokens by whitespace when specifying key/value- pairs, e.g.
proj = merc lat_0 = 45
.Added metadata to init-files that can be read with the
proj_init_info()
function in the newproj.h
API.Added ITRF2000, ITRF2008 and ITRF2014 init-files with ITRF transformation parameters, including plate motion model parameters.
Added ellipsoid parameters for GSK2011, PZ90 and "danish". The latter is similar to the already supported andrae ellipsoid, but has a slightly different semimajor axis.
Added Copenhagen prime meridian.
Updated EPSG database to version 9.2.0.
Geodesic library updated to version 1.49.2-c.
Support for analytical partial derivatives has been removed.
Improved performance in Winkel Tripel and Aitoff.
Introduced
pj_has_inverse()
function toproj_api.h
. Checks if an operation has an inverse. Use this instead of checking whetherP->inv
exists, since that can no longer be relied on.ABI version number updated to 13:0:0.
Removed support for Windows CE.
Removed the VB6 COM interface.
Bug fixes
Fixed incorrect convergence calculation in Lambert Conformal Conic. (#16)
Handle ellipsoid parameters correctly when using
+nadgrids=@null
. (#22)Return correct latitude when using negative northings in Transverse Mercator. (#138)
Return correct result at origin in inverse Mod. Stereographic of Alaska. (#161)
Return correct result at origin in inverse Mod. Stereographic of 48 U.S. (#162)
Return correct result at origin in inverse Mod. Stereographic of 50 U.S. (#163)
Return correct result at origin in inverse Lee Oblated Stereographic. (#164)
Return correct result at origin in inverse Miller Oblated Stereographic. (#165)
Fixed scaling and wrap-around issues in Oblique Cylindrical Equal Area. (#166)
Corrected a coefficient error in inverse Transverse Mercator. (#174)
Remove multiplication by 2 at the equator error in Stereographic projection. (#194)
Allow +alpha=0 and +gamma=0 when using Oblique Mercator. (#195)
Return correct result of inverse Oblique Mercator when alpha is between 90 and 270. (#331)
Avoid segmentation fault when accessing point outside grid. (#396)
Avoid segmentation fault on NaN input in Robin inverse. (#463)
Fixed memory leak in General Oblique Transformation. (#497)
Equations for meridian convergence and partial derivatives have been corrected for non-conformal projections. (#526)
Fixed scaling of cartesian coordinates in
pj_transform()
. (#726)Additional bug fixes courtesy of Google's OSS-Fuzz program