[Geographiclib-announce] GeographicLib 1.47 (released 2017-02-15)

[Charles K. <cha...@sr...>]

Changes between 1.47 (released 2017-02-15) and 1.46 versions:

   * Add NearestNeighbor class.

   * Improve accuracy of area calculation (fixing a flaw introduced in
     version 1.46); fix applied in Geodesic, GeodesicExact, and the
     implementations in C, Fortran, Java, JavaScript, Python, MATLAB, and
     Maxima.

   * Generalize NormalGravity to allow oblate and prolate ellipsoids.  As
     a consequence a new form of constructor has been introduced and the
     old form is now deprecated (and because the signatures of the two
     constructors are similar, the compiler will warn about the use of
     the old one).

   * Changes in Math class:
     + Math::sincosd, Math::sind, Math::cosd only return -0 for the case
       sin(-0);
     + Math::atan2d and Math::AngNormalize return results in (-180deg,
       180deg]; this may affect the longitudes and azimuth returned by
       several other functions.

   * Add Utility::trim() and Utility::val<T>(); Utility::num<T>() is now
     DEPRECATED.

   * Changes in cmake support:
     + remove support of PACKAGE_PATH and INSTALL_PATH in cmake
       configuration;
     + fix to FindGeographicLib.cmake to make it work on Debian systems;
     + use $<TARGET_PDB_FILE:tgt> (cmake version >= 3.1);
     + use NAMESPACE for exported targets;
     + geographiclib-config.cmake exports GEOGRAPHICLIB_DATA,
       GEOGRAPHICLIB_PRECISION, and GeographicLib_HIGHPREC_LIBRARIES.

   * Add pkg-config support for cmake and autoconf builds.

   * Minor fixes:
     + fix the order of declarations in C library, incorporating the
       patches in version 1.46.1;
     + fix the packaging of the python library, incorporating the patches
       in version 1.46.3;
     + restrict junit dependency in the Java package to testing scope
       (thanks to Mick Killianey);
     + various behind-the-scenes fixes to EllipticFunction;
     + fix documentation and default install location for Windows binary
       installers;
     + fix clang compiler warnings in GeodesicExactC4 and
       TransverseMercator.