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Tulipversion 3.0.0 Beta2 released

This is a new betarelease of the 3.0.0 version: new APIs for Tulip libraries, new tlpformat, new interactor mechanism, new 2D glyphs, OpenGL performanceimprovements and bug fixes, SVG format support, Qt 4.2 support, mouseinteraction improvements, new plugin dependencies mechanism, GEM pluginrewritten to support edge length (2D & 3D), many bug fixes, coderefactoring and documentation.

details : new APIs: renaming of main classes in order to ease codewriting, all classes are members of tlp namespace.new tlpformat (version 2.0): file informations added (author, date, comments);old file format still supported as input.2D glyphs: newcircle, hexagone, pentagone, ring, square and triangle glyphs with userspecified border color.OpenGL rendering engine: improvement ofnon visible elements detection (use tulip matrix classes), improvementof augmented display feature (display and selection of non-graphelements), better alpha channel management, use of GL_AUX_BUFFER (needsgraphic card support), improvements of coordinates transformation (usetulip matrix classes). Major bugs have been fixed allowing the use of Qt4 version on Windows platform.SVG format support: picture ofgraph can be saved in SVG format.mouse interactionimprovements: pan & zoom is always accessible. Selection editionuses image manipulation standard ergonomy.A plugindependencies mechanism has been added allowing to specify what otherplugins a plugin depends on. These dependencies are checked at load timeenforcing the reliability of the Tulip GUI.