Hi list,

Boost 1.56.0 has been released. See also the message from the release managers below my message.

For Boost.Geometry this involves numerous additions and improvements:

* New algorithm buffer for inflating/deflating geometries
* New algorithm remove_spikes, algorithm to remove spikes from a ring, polygon or multi_polygon.
* New algorithm point_on_surface, generating a point lying on the surface (interior) of the polygon
* New algorithm is_simple, returning true if a geometry is simple according to the OGC standard
* New algorithm is_valid, returning true if a geometry is valid according to the OGC standard
* New algorithm crosses for checking this spatial relation according to the OGC standard
* The set operation algorithms (difference, intersection, sym_difference and union_) now support as input pairs of pointlike or linear geometries
* The distance and comparable_distance algorithms now support all pairs of geometry combinations
* The spatial relations which didn't support it (covered_by, touches, within, etc.) now support as input linear and/or areal geometries
* The support for boost::variants as input geometries in various algorithms
* The rtree support for indexing segments
* The rtree nearest() predicate support for arbitrary geometries


* Set operations for polygons (union, intersection, (sym)difference) more robust
* The rtree pack-creation algorithm optimization

This counts together for probably a manyear or more of work since 1.55.
Thanks a lot for your hard work, especially Adam and Menelaos!

The transition of Boost from svn to git was aldo done during this release. For contributions to our library this is fortunate: we received and merged several github pull requests. Thanks for them!


Regards, Barend

-------- Original message --------
Onderwerp: [Boost-users] Boost 1.56.0 has been released
Datum: Thu, 7 Aug 2014 10:54:04 -0700
Van: Marshall Clow <mclow.lists@gmail.com>
Antwoord-naar: boost-users@lists.boost.org
Aan: boost@lists.boost.org List <boost@lists.boost.org>, boost-users@lists.boost.org, Boost announce list <boost-announce@lists.boost.org>

Release 1.56.0 of the Boost C++ Libraries is now available.

These open-source libraries work well with the C++ Standard Library, and are usable across a broad spectrum of applications. 
The Boost license encourages both commercial and non-commercial use.

This release contains one new library and numerous enhancements and bug fixes for existing libraries.

=== Modularization ===
Boost version control has migrated to a system using git submodules. This shouldn't make too much of a difference to users, although the directory structure is now a bit different.

Parts of some libraries have been moved into different modules, and several new modules have been extracted from existing code. All header paths should remain the same. The new modules are:

• Assert: Customizable assert macros. Maintained by Peter Dimov.
• Core:  Core utilities used by other libraries, with minimal dependencies. Maintained by Peter Dimov, Glen Fernandes and Andrey Semashev.
• Lexical_Cast: General literal text conversions, such as an int represented a string, or vice-versa, from Kevlin Henney.
• Throw_Exception: A common infrastructure for throwing exceptions from Boost libraries, from Emil Dotchevski.
• Winapi: Windows API declarations without <windows.h>, for internal Boost use.

=== New Libraries ===
• Align: Memory alignment functions, allocators, and adaptors, from Glen Fernandes.
• Type_Index: Runtime/Compile time copyable type info, from Antony Polukhin.

For details, including download links, see http://www.boost.org/users/news/version_1.56.0

You can also download directly from SourceForge: http://sourceforge.net/projects/boost/files/boost/1.56.0/

To install this release on your system, see http://www.boost.org/doc/libs/release/more/getting_started/index.html


--The Boost release team

  Vladimir Prus
  Rene Rivera
  Marshall Clow
  Eric Niebler
  Daniel James
  Beman Dawes