Archive for May, 2011

GEOS 3.3.0

Tuesday, May 31st, 2011

GEOS 3.3.0 is out: http://download.osgeo.org/geos/geos-3.3.0.tar.bz2

This release introduces a fair amount of new C-API interfaces and a brand new PHP binding. Full details in the NEWS file: http://trac.osgeo.org/geos/browser/tags/3.3.0/NEWS

As with any release since 3.0.0 there is complete binary compatibility with clients linked against the C-API. These include, but are not limited to, PostGIS. For a list of known clients: http://trac.osgeo.org/geos/wiki/Applications (add yours, if not already listed!)

GEOS is a C++ port of the JTS Topology Suite. This release targets version 1.12 of the library, but doesn’t reach full feature parity yet. Missing JTS functionalities:

  • Densifier class
  • Geometric similarity detection package (HausdorffSimilarityMeasure, AreaSimilarityMeasure)
  • MinimumDiameter.getMiminumRectangle()
  • Triangulation API
  • VoronoiDiagramBuilder
  • createSquircle and createSuperCircle in GeometricShapeFactory
  • MinimumClearance class
  • nearestNeighbours method to STRtree
  • RandomPointsBuilder / RandomPointsInGridBuilder
  • KochSnowflakeBuilder
  • SierpinksiCarpetBuilder

If you’d like to sponsor development of any of the above items (or others) for next feature release of GEOS (3.4.0) please drop me a note.

Software libero e tecnologie partecipative

Monday, May 30th, 2011

Lunedi’ 6 Giugno 2011 alle 20:30 presso la sede dell’ associazione Cubibi’ di Ispra si terra’ un’ incontro aperto sul software libero e le tecnologie partecipative.

[ via Madonnina del Grappa, 40-48 - Ispra. 6 Giugno 2011 ore 20:30 ]

L’ incontro e’ rivolto a tutti coloro che coltivano la propria curiosita’ come una risorsa e vogliono scoprire qualcosa in piu’ sugli strumenti elettronici che mediano sempre piu’ le nostre attivita’ personali e sociali estendendone o limitandone le possibilita’, aiutando od ostacolando la nostra capacita’ di scelta.

UPDATE: qui il materiale per stampare il volantino.