New release

GUDHI version 1.3.0

We are pleased to announce the release 1.3.0 of the GUDHI library.

Below is a list of changes made since Gudhi 1.2.0:

  • GudhUI (new package) This package provides a User Interface to have a quick overview of GUDHI features. GudhUI allows to load OFF points or meshes files that can be visualized on a 3D viewer. A tool suite is available to perform edge contraction, point cloud persistence, and so on.

  • Alpha complex (new package)

    • Alpha_complex is a simplicial complex data structure constructed from the finite cells of a Delaunay Triangulation.
  • Cubical complex (new package)

    • The cubical complex is an example of a structured complex useful in computational mathematics (specially rigorous numerics) and image analysis.
  • Witness complex (new package)

    • Witness complex Wit(W,L) is a simplicial complex defined on two sets of points in Rd. The data structure is described in the paper “Jean-Daniel Boissonnat and Clément Maria. The Simplex Tree: An Efficient Data Structure for General Simplicial Complexes. Algorithmica, pages 1–22, 2014.”
  • Persistent cohomology (new examples)

    • alpha_complex_persistence: How to compute persistent homology from an alpha complex.
    • periodic_alpha_complex_3d_persistence.cpp: How to compute persistent homology on a periodic alpha complex in 3D.
    • Bitmap_cubical_complex.cpp: How to compute persistent homology from an cubical complex.
    • Bitmap_cubical_complex_periodic_boundary_conditions.cpp: How to compute persistent homology from a periodic cubical complex.
  • Documentation

    • a section on examples.

    • a summary of modules on the main page.

  • Data sets

    • tore3D_300.off: 300 random points on a 3D torus.

    • grid_10_10_10_in_0_1.off: Points every 0.1 in each 3 dimensions in [0, 1].

    • in data/bitmaps : examples of Perseus style file for Cubical complex

All modules are distributed under the terms of the GPL Open Source license (GNU General Public License v3 or later versions).

We kindly ask users to cite the GUDHI library as appropriately as possible in their papers, and to mention the use of the GUDHI library on the web pages of their projects using GUDHI and provide us with links to these web pages. Feel free to contact us in case you have any question or remark on this topic.

We provide bibtex entries for the modules of the User and Reference Manual, as well as for publications directly related to the GUDHI library.

For further information and for downloading the library and its documentation, please visit the GUDHI documentation web site.