The CGAL Open Source Project is pleased to announce the Release 3.7 of CGAL, the Computational Geometry Algorithms Library. CGAL-3.7 provides improvements and fixes to existing packages, and support for new compilers. See http://www.**--****.com/ The CGAL project is a collaborative effort to develop a robust, easy-to-use, and efficient C++ software library of geometric data structures and algorithms, like - triangulations (2D constrained triangulations, Delaunay triangulations in 2D and 3D, periodic Delaunay triangulations in 3D), - Voronoi diagrams (for 2D and 3D points, 2D additively weighted Voronoi diagrams, and segment Voronoi diagrams), - Boolean operations on polygons and polyhedra, - Regularized Boolean operations on polygons with curved arcs - arrangements of curves, - mesh generation (2D, 3D and surface mesh generations) and processing (surface mesh subdivision and parametrization), - alpha shapes (in 2D and 3D), - convex hull algorithms (in 2D, 3D and dD), - operations on polygons (straight skeleton and offset polygon), - search structures (kd trees for nearest neighbor search, and range and segment trees), - interpolation (natural neighbor interpolation and placement of streamlines), - optimization algorithms (smallest enclosing sphere of points or spheres, smallest enclosing ellipsoid of points, principal component analysis), - kinetic data structures Some modules are distributed under the terms of the LGPL Open Source license (GNU Lesser General Public License v2.1). Most modules are distributed under the terms of the QPL Open Source license (Q Public License v1.0). If your intended usage does not meet the criteria of the aforementioned licenses, a commercial license can be purchased from GeometryFactory ( http://www.**--****.com/ ). For further information and for downloading the library and its documentation, please visit the CGAL web site: http://www.**--****.com/