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GEOS 3.2 Released

December 15th, 2009

GEOS, the geometry engine underneath the PostGIS spatial database (part of the OpenGeo Suite), has achieved a version 3.2.0 release! The latest release includes performance improvements in buffering, general C++ performance improvements, and an implementation of single-sided buffering. PostGIS users who upgrade their GEOS will get all the performance improvements automatically. The upcoming release of PostGIS 1.5 (about which we are very excited) will also tie in support for the new single-sided buffers.

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This entry was written by Paul Ramsey on Tuesday, December 15th, 2009 at 4:57 pm and is filed under FrontPage, Technology. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

One Response to “GEOS 3.2 Released”

  1. Alex Willmer Says:

    Here are the major changes (taken form the NEWS file http://svn.osgeo.org/geos/tags/3.2.0/NEWS)

    - Add Single-sided buffer operation
    - JTS-1.10 sync …
    – Drastically improved Buffer speed (20x for a case in testsuite)
    – Improved EdgeList duplicate edge finding
    – Added algorithm::distance package
    – Added algorithm::Angle class
    – Added algorithm::BoundaryNodeRule class
    – IsSimpleOp can now return non-simple location coordinate
    – DistanceOp can now check for ‘within distance’ predicate
    (earlier exit)
    – MultiPolygon::getBoundary always return MultiLineString, also
    when the result is the EMPTY geometry.
    - Various bug and leak fixes, optimizations
    - Replace MarkupSTL with tinyXML

    December 18th, 2009 at 4:24 pm

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