1. 21 Aug, 2009 1 commit
  2. 16 Aug, 2009 1 commit
  3. 14 Feb, 2009 1 commit
    • Tiago Peixoto's avatar
      Add centrality module · 96b9c5e7
      Tiago Peixoto authored
      This adds the centrality module, which supports betweenness, eigentrust,
      pagerank and absolute trust.
      96b9c5e7
  4. 01 Dec, 2008 1 commit
  5. 23 Oct, 2008 1 commit
  6. 21 Oct, 2008 1 commit
  7. 07 Oct, 2008 1 commit
  8. 24 Sep, 2008 1 commit
  9. 27 Mar, 2008 1 commit
    • Tiago Peixoto's avatar
      Port graph I/O to new filtering engine, enable graph pickling, and fix several issues · 99bf21c8
      Tiago Peixoto authored
      Now graphml files properly contain all the supported value types, which
      are all perfectly preserved when read (floating point data is now saved
      in hexadecimal format). Several other improvements were made, such as
      the ability to read and write to python file-like objects.
      
      It is also now possible to have arbitrary python object properties, and
      store them persistently (which is done internally with the pickling
      interface).
      
      vector<bool> was totally abolished, since its implementation is quite
      broken. See: http://www.gotw.ca/publications/N1211.pdf and
      http://www.gotw.ca/publications/N1185.pdf Now a uint8_t (aka. char) is
      used in graph properties instead of a bool.
      
      Graph types can now be fully pickled (this may not be feasible
      memory-wise if the graph is too large, since the whole XML
      representation is dumped to a string before it is saved on disc).
      99bf21c8
  10. 17 Feb, 2008 1 commit
    • Tiago Peixoto's avatar
      Split libgraph_tool into sub-modules and add test cases · 3cfff0cb
      Tiago Peixoto authored
      This commit splits libraph_tool into different libraries:
       
         - libgraph_tool_core
         - libgraph_tool_clustering (*)
         - libgraph_tool_community (*)
         - libgraph_tool_correlations (*)
         - libgraph_tool_distance (*)
         - libgraph_tool_generation (*)
         - libgraph_tool_layout (*)
         - libgraph_tool_misc (*)
         - libgraph_tool_stats (*)
      
      It also adds the python sub-module 'test', which provides extensive unit
      testing of the core functionality. The core library is fully functional
      and all test pass successfully.
      
      (*) -> module needs to be ported to new refactoring, and does not yet build
      3cfff0cb
  11. 21 Dec, 2007 2 commits
  12. 17 Dec, 2007 1 commit
    • Tiago Peixoto's avatar
      Fix visibility/RTTI problem with run_action() · 0c1f0df2
      Tiago Peixoto authored
      Some visibility voodoo is necessary to ensure that RTTI work properly
      across DSO boundaries, which is necessary to properly handle dynamic
      property maps and such. Additionally, the action template must have a
      different name each time the action code changes, to avoid additional
      weirdness.
      
      This also adds some other utility functions/typedefs to make writing
      "inline" c++ code easier.
      0c1f0df2
  13. 14 Dec, 2007 2 commits
    • Tiago Peixoto's avatar
      Fix add_edge_property() · 5b45d806
      Tiago Peixoto authored
      add_edge_property() should return a edge property not a vertex_property
      5b45d806
    • Tiago Peixoto's avatar
      Add support for running arbitrary C++ code from python · 866bb994
      Tiago Peixoto authored
      It is now possible to run arbitrary "inline" C++ code from python, using
      scipy.weave, as such:
      
              g = graph_tool.Graph()
              g.load("foo.xml")
              value = 2.0
              g.run_action('cout << num_vertices(g) << " " << value << endl;',
                           ["value"]);
      
      The code gets compiled the first time, and is reused after that. Python
      local and global variables can be passed to C++, as shown above, by
      specifying a list of passed variables as the second argument.
      866bb994
  14. 06 Dec, 2007 2 commits
    • Tiago Peixoto's avatar
      Fix edit_{vertex|edge|graph}_property() · db440664
      Tiago Peixoto authored
      The graph object passed to the edit function is now a instance of the
      Graph class which wraps GraphInterface, not a GraphInterface instance.
      db440664
    • Tiago Peixoto's avatar
      Implement lazy loading of graphs · de0a0a8e
      Tiago Peixoto authored
      Graphs can now be loaded "lazily" with the lazy_load() function, which
      works just like load(), but doesn't actually load the graph, which is
      delayed until the graph is accessed for the first time, e.g.
      
          import graph_tool
      
          g = graph_tool.Graph()
          g.lazy_load("example.xml")
      
          g.number_of_vertices()  # <- the graph is only loaded here
      de0a0a8e
  15. 03 Dec, 2007 1 commit
  16. 30 Nov, 2007 1 commit
    • Tiago Peixoto's avatar
      Further improvements of the python interface · 1a0e9b5f
      Tiago Peixoto authored
      Property maps can now be obtained as such:
      
               weight = g.edge_properties['weight']
               print weight[v] # v is a Vertex object
               weight[v] = 2.0
               # and so on...
      
      The list of properties is obtained from g.vertex_properties,
      g.edge_properties and g.graph_properties, which can be read as
      dictionaries. The last can be set also, as such:
      
               g.graph_properties = {foo:"bar", baz:42}
      
      Functions to add and remove vertices or adges were also added
      (add_{vertex|edge}, remove_{vertex|edgge}).
      
      Vertex and Edge types can also now be printed for convenience, as such:
      
             for v in g.vertices():
                 print v
             for e in g.edges():
                 print e
      
      which results, for example, in:
      0
      1
      2
      3
      4
      5
      6
      (0,1)
      (1,2)
      (2,6)
      (3,4)
      (4,5)
      (4,2)
      (5,6)
      (6,1)
      
      (this also adds the forgotten graph_tool.py file, which was previously
      on .gitignore)
      1a0e9b5f