kbevers released this
Apr 1, 2018
· 167 commits to master since this release
This is purely a bug fixing release that fixes a range of problems in the initial PROJ 5 release.
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 +datum 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
Version 5.0.1 is made possible by the following contributors:
Mike Toews Kurt Schwehr Even Rouault Charles Karney Thomas Knudsen Kristian Evers
kbevers released this
Mar 1, 2018
· 52 commits to master since this release
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.
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.
o The PROJ.4 project provides the product PROJ, which is now at version 5.0.0.
o The foundational component of PROJ is the library libproj.
o Other PROJ components include the application proj, which provides a command line interface to libproj.
o The PROJ.4 project also distributes the datum-grid package, which at the time of writing is at version 1.6.0.
o Introduced new API in proj.h.
o Introduced the concept of "transformation pipelines" that makes it possible to do complex geodetic transformations of spatiotemporal coordinates by daisy chaining simple coordinate operations.
o Introduced cct, the Coordinate Conversion and Transformation application.
o Introduced gie, the Geospatial Integrity Investigation Environment.
o Adopted terminology from the OGC/ISO-19100 geospatial standards series. Key definitions are:
o New operations:
o Significant documentation updates, including
o 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".
o Added metadata to init-files that can be read with the proj_init_info() function in the new proj.h API.
o Added ITRF2000, ITRF2008 and ITRF2014 init-files with ITRF transformation parameters, including plate motion model parameters.
o 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.
o Added Copenhagen prime meridian.
o Updated EPSG database to version 9.2.0.
o Geodesic library updated to version 1.49.2-c.
o Support for analytical partial derivatives has been removed.
o Improved performance in Winkel Tripel and Aitoff.
o Introduced pj_has_inverse() function to proj_api.h. Checks if an operation has an inverse. Use this instead of checking whether P->inv exists, since that can no longer be relied on.
o ABI version number updated to 13:0:0.
o Removed support for Windows CE.
o Removed the VB6 COM interface.
All bug fix numbers refer to issues indexed at https://github.com/OSGeo/proj.4/issues/
o Fixed incorrect convergence calculation in Lambert Conformal Conic. #16.
o Handle ellipsoid parameters correctly when using +nadgrids=@null. #22.
o Return correct latitude when using negative northings in Transverse Mercator (tmerc). #138.
o Return correct result at origin in inverse Mod. Stererographic of Alaska. #161.
o Return correct result at origin in inverse Mod. Stererographic of 48 U.S. #162.
o Return correct result at origin in inverse Mod. Stererographic of 50 U.S. #163.
o Return correct result at origin in inverse Lee Oblated Stereographic. #164.
o Return correct result at origin in inverse Miller Oblated Stereographic. #164.
o Fixed scaling and wrap-around issues in Oblique Cylindrical Equal Area. #166.
o Corrected a coefficient error in inverse Transverse Mercator. #174.
o Respect -r flag when calling proj with -V. #184.
o Remove multiplication by 2 at the equator error in Stereographic projection. #194.
o Allow +alpha=0 and +gamma=0 when using Oblique Mercator. #195.
o Return correct result of inverse Oblique Mercator when alpha is between 90 and 270. #331.
o Avoid segmentation fault when accessing point outside grid. #369.
o Avoid segmentation fault on NaN input in Robin inverse. #463.
o Very verbose use of proj (-V) on Windows is fixed. #484.
o Fixed memory leak in General Oblique Transformation. #497.
o Equations for meridian convergence and partial derivatives have been corrected for non-conformal projections. #526.
o Fixed scaling of cartesian coordinates in pj_transform(). #726.
o Additional bug fixes courtesy of Google's OSS-Fuzz program: https://bugs.chromium.org/p/oss-fuzz/issues/list?can=1&q=proj4
o The projects.h header and the functions related to it is considered deprecated from version 5.0.0 and onwards.
!!! PROJECTS.H WILL BE REMOVED FROM THE LIBRARY !!!
!!! WITH VERSION 6.0.0 !!!
o The nmake build system on Windows will not be supported from version 6.0.0 on onwards. Use CMake instead.
!!! NMAKE BUILD SYSTEM WILL BE REMOVED FROM THE LIBRARY !!!
!!! WITH VERSION 6.0.0 !!!
o The proj_api.h header and the functions related to it is consided deprecated from version 5.0.0 and onwards.
!!! PROJ_API.H WILL BE REMOVED FROM THE LIBRARY !!!
!!! WITH VERSION 7.0.0 !!!
Version 5.0.0 is made possible by the following contributors:
Elliott Sales de Andrade
o UTM now uses etmerc, following NGA recommendations. Tests adjusted for tiny changes in values.
o new projections: Times, Natural Earth II, Compact Miller, Patterson Cylindrical, and inverse for Hammer and Eckert-Greifendorff.
o runtime self tests are now opt-in instead of opt-out
o math constants moved to projects.h
o New (optional) runtime self tests added to proj
o proj_def.dat was missing from source distribution see #274 for more detail
o Update Geodesic library from GeographicLib
o Remove setlocale() use in pj_init_ctx()
o Renamed PVALUE in pj_param.c to prevent clash with Windows
o 4.9.0RC2 release was abandoned because it was not promoted in a timely fashion. Subsequent maintenance of tickets has continued, and a new 4.9.1 release was issued in its place.
o Implement inverse solution for Winkel Tripel from Drazan Tutic #250
o More CMake configuration tweaks. The CMake configuration is probably not at feature parity with the autotools builds at this point but it is converging #256
o Tweak initialization ordering around setlocal which may have caused issues #237
o Support out-of-tree autoconf builds more completely #247
o Fix NaN handling by geod_inverse and geod_polygon_addedge #251 & #253
o Update config.sub and config.guess #257
o Adapt Charles Karney's CMake patches for smoother build #258
o Define default PROJ_LIB location for CMake compilation #261
o Fix Windows compilation on PJ_aitoff.c
o Align CMake SOVERSION with autotools #263
o Regenerate nad/epsg with GDAL r28536 to avoid precision loss in TOWGS84 parameters, e.g. on Amersfoort / RD EPSG:4289 (#260)
o Add CMake project-config.cmake scripts (#264 from Charles Karney)
o Dial back test sensitivity #255
o Implement CMake as an option for building PROJ.4
o Implement new virtual file api (projFileAPI) so that all access to grid shift and init files can be hooked.
o Replace geodesic implementation with one from Charles Karney and add a supported public interface (geodesic.h).
o Upgraded to EPSG 8.5.
o Removed old (deprecated) Java bindings in favor of the new api introduced in 4.8.0.
o Implement the calcofi (Cal Coop Ocean Fish Invest Lines/Stations) projection
o Install projects.h again for applications that want access to internal structures and functions despite the inherent fragility.
o Various bug fixes and cleanup.
o Added the CalCOFI pseudo-projection, #135
o Added the Natural Earth projection.
o Added HEALPIX, rHEALPIX and Icosahedral Snyder Equal Area projections.
o nad2bin now produces "CTable2" format grid shift files by default which are platform independent.
o nad2nad removed, use cs2cs for datum shift operations.
o projects.h no longer installed as a public include file. Please try to only use proj_api.h.
o Add pj_get_spheroid_defn() accessor.
o Added an alternate version of pj_init() that takes a projCtx (execution context) structure to address multithreading issues with error management and to provide a support for application hookable error reporting and logging.
o Upgrade to EPSG 7.9. Some changes in ideal datum selection.
o JNI bindings reworked, org.proj4.Projections deprecated in favor of org.proj4.PJ.
o Added preliminary vertical datum support.
o Fix various multithreading issues, particular in datum grid handling code.
o Added support for the +axis= option for alternate axis orientations as part of a coordinate system (used for TM South Orientated support).
o +proj=omerc implementatioin replaced with code from libproj4. +rot_conv flag no longer works, and some coordinate systems (ie. Malaysian) will need to use +gamma instead. "epsg" init file updated accordingly.
o Added in memory caching of init file search results for substantial acceleration in some application environments (like MapServer).
o Regenerated nad/epsg init file with EPSG 7.1 database, including new support for Google Mercator (EPSG:3857).
o Various thread safety improvements, including preliminary support for a mutex lock around some operations, like grid loading.
o Upgraded to EPSG 6.17 version for nad/epsg. Also corrected the precision problem introduced in the last version.
o Added logic for tmerc projection to fail rather than return crazy results if more than 90 degrees away from the central meridian (#5). This change may only be temporary till a more comprehensive solution is found.
o Fixed handling of extra text in cs2cs.
o Renamed INSTALL to INSTALL.TXT.
o The eqc projection has been generalized to include a latitude of origin.
o Added the glabsgm (Gauss Laborde / Sphere Geometric Mean) projection, and gstmerc variation.
o nad/IGNF init catalogue created.
o added the ntf_r93.gsb datum shift file.
o Add /Op in nmake.opt compile options to avoid VC7 optimization bug (#12)
o Fix testvarious test script so it works properly when grid files available
o MAJOR: Rework pj_transform() to avoid applying ellipsoid to ellipsoid transformations as a datum shift when no datum info is available.
o Avoid applying "change of ellipsoid" during datum shifting based on ellipsoids getting changed to spheres for spherical projections.
o Upgrade to EPSG 6.13
o Added "900913" "Google Mercator" code in nad/esri.extra.
o Avoid some static variable based multi-threading problems.
o Improve error recovery if ctable style datum shift grid fails to load.
o Support drive letters properly in PROJ_LIB paths for win32.
o Fix occasional problem with DMS parsing.
o Removed non-functional mpoly projection.
o add lonlat, and latlon as aliases for longlat.
o Microsoft Visual Studio 8 compatibility changes.
o Upgraded to EPSG 6.11.1 database.
o Several bug fixes to pj_transform() to handle transient errors properly.
o Fix Krovak projection (include +czech flag)
o Added Roussilhe Stereographic projection from libproj4 (proj=rouss).
o Added experimental +lon_wrap flag for alternate pj_transform() longitude wrapping behavior on output.
o Win32 build uses proj.dll by default now.
o Added accessor functions for the datums, ellps, prime_meridians, units and main projection definition lists so they can be used on windows where data objects exported from the DLL don't work easily.
o Added JNI (Java Native Interface) support within the jniwrap directory, and some supporting entry points directly in the proj dll/so. See --with-jni configure switch, and jniwrap/README.
o Added the proj=stereoa and proj=geos projections, incorporated from Gerald's libproj4.
o A few other bug fixes.
o Updated epsg file to EPSG 6.5, added other.extra pseudo-EPSG WMS definitions
o Made significant fixes to prime meridian support.
o Substantially change pj_datum_transform(), so it and pj_transform() will work between coordinate systems with different ellipsoids but no datum shift information (assume +towgs84=0,0,0).
o Added pj_get_release() function.
o Ensure pj_transform() will try to transform all points in provided list if even some might transform properly.
o Improved the accuracy of Geocentric_To_Geodetic() via an iterative solution.
o Various other bug fixes.
o Added NTv2 (.gsb) grid shift file support.
o Modified datum shift support so that data file data is only loaded if needed. Also added 'null' grid as a fallback option, and support for making grids optional (prefix with '@' in +nadgrids).
o Regenerated nad/epsg file with towgs84 parameters for non-greenwich prime meridians.
o Updated nad/esri file with better generated form from Paul Ramsey.
o Various bug fixes.
o Incorporated new lcca (Lambert Conformal Conic Alternate) projection from Gerald.
o Updated 'espg' translation file for EPSG 6.2.2 with better support for prime meridians.
o Added Prime Meridians via +pm command switch to cs2cs (and pj_transform).
o Fixed bug with 7 parameter transforms.
o Added 'esri' pseudo-epsg coordinate system file.
o Cleanup so that PROJ.4 compiles clean as C++ code.
o Added pj_get_def() to expand definitions of stuff like +init clauses.
o Added a Krovak implementation (proj=krov). Note this may change again in the next release.