1. 02 May, 2012 1 commit
  2. 29 Apr, 2012 1 commit
  3. 21 Mar, 2012 1 commit
  4. 10 Feb, 2011 1 commit
  5. 02 Feb, 2011 1 commit
  6. 04 Dec, 2010 1 commit
  7. 13 Nov, 2010 1 commit
  8. 09 Aug, 2010 1 commit
  9. 07 Mar, 2010 1 commit
  10. 06 Sep, 2009 1 commit
  11. 25 Apr, 2009 1 commit
  12. 10 Mar, 2009 1 commit
    • Tiago Peixoto's avatar
      Implement optional wrapping of graphs to deal with edge index housekeeping · 684efca7
      Tiago Peixoto authored
      Thins changes the graph filtering code slightly to wrap graph types with
      GraphWrap, which automatically updates the edge index list when edges
      are removed and added to the graph.
      
      This also changes how graphs are passed to algorithms, which is now by
      reference instead of pointer. (hence this touches lots of code, but
      changes are trivial)
      684efca7
  13. 14 Feb, 2009 1 commit
  14. 10 Feb, 2009 1 commit
  15. 06 Feb, 2009 2 commits
    • Tiago Peixoto's avatar
      Fix symbol visibility · d6422b73
      Tiago Peixoto authored
      Now all symbols are exported by default, except those strictly marked
      as hidden.
      d6422b73
    • Tiago Peixoto's avatar
      Disable internal bounds checking in property maps · 0ababf9c
      Tiago Peixoto authored
      This includes a new vector property map type (fast_vector_property_map)
      which has optional disabling of bounds checking, through its associate
      map type (unchecked_fast_vector_property_map). This should improve
      performance on algorithms which depend on tight loops which access
      property maps.
      
      Bounds checking is only disabled locally just before the algorithms run,
      and proper care is taken for bounds checking _beforehand_. The property
      maps exposed to python still have internal bounds checking.
      0ababf9c
  16. 21 Jul, 2008 1 commit
  17. 14 Apr, 2008 1 commit
  18. 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
  19. 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
  20. 10 Feb, 2008 1 commit
    • Tiago Peixoto's avatar
      Refactor metaprogramming engine · 0b66e272
      Tiago Peixoto authored
      This is a huge commit which completely refactors the metaprogramming
      engine which generates and selects (at run time) the graph view type and
      the desired algorithm implementation (template instantiation) that runs
      on it.
      
      Things are laid out now as following. There exists a main underlying
      graph type (GraphInterface::multigraph_t) and several other template
      classes that mask it some way or another, in a hierarchic fashion:
      
           multigraph_t -> filtered_graph (edges only, vertices only, both)
               |                               |           |           |
               |                               |           |           |
               |-------(reversed_graph)--------|-----------|-----------|
               |                               |           |           |
               \------(UndirectedAdaptor)------------------------------/
      
      The filtered_graph filters out edges and/or vertices from the graph
      based on some scalar boolean property. The reversed_graph reversed the
      direction of the edges and, finally, the UndirectedAdaptor treats the
      original directed graphs as undirected, transversing the in- and
      out-edges of each vertex indifferently. Thus, the total number of graph
      view types is 12. (The option --disable-graph-filtering can be passed to
      the configure script, which will disable graph filtering altogether and
      bring the total number down to 3, to reduce compile time and memory
      usage)
      
      In general, some specific algorithm, implemented as a template function
      object, needs to be instantiated for each of those types. Furthermore,
      the algorithm may also depend on other types, such as specific
      property_maps. Thus, the following scheme is used:
      
          struct my_algorithm // algorithm to be implemented
          {
              template <class Graph, class PropertyMap>
              void operator()(Graph *g, PropertyMap p, double& result) const
              {
                  // ...
              }
          };
      
          // in order for the above code to be instantiated at compile time
          // and selected at run time, the run_action template function object
          // is used from a member function of the GraphInterface class:
      
          double GraphInterface::MyAlgorithm(string prop_name)
          {
              double result;
              boost::any vprop = prop(property, _vertex_index, _properties);
              run_action<>()(*this, bind<void>(my_algorithm(), _1, _2,
                                               var(result)),
                             vertex_scalar_properties())(vprop);
              return result;
          }
      
      The whole code was changed to reflect this scheme, but now things are
      more centralized and less ad-hoc code needed to be
      written. Unfortunately, due to GCC's high memory usage during template
      instantiations, some of the code (namely all the degree correlation
      things) had to be split in multiple compilation units... Maybe this will
      change in the future if GCC gets optimized.
      
      This commit also touches other parts of code. More specifically, the way
      filtering gets done is very different. Now we only filter on boolean
      properties, and with the above scheme, the desired implementation runs
      with the correct chosen type, and no implicit type conversions should
      ever happen, which would have a bad impact on performance.
      0b66e272
  21. 13 Dec, 2007 1 commit
  22. 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
  23. 26 Nov, 2007 1 commit
    • Tiago Peixoto's avatar
      Further improvement of python interface · 06358b7c
      Tiago Peixoto authored
      Vertices and edges can be accessed from the graph class, as such:
      
          import graph_tool
          g = graph_tool.Graph()
          for v in g.vertices():
              for e in v.out_edges():
                 # do something...
      
      Additionally, the --edit-{vertex|edge|graph}-property was ported to the
      new interface, and is working again, as it used to.
      
      The Vertex and Edge class no longer have the 'get_property' and
      'set_property' method. They'll be replaced by a new method of accessing
      property maps.
      06358b7c
  24. 04 Nov, 2007 1 commit
  25. 07 Oct, 2007 1 commit
    • Tiago Peixoto's avatar
      Complete overhaul of command line parsing, and support for loading graph-tool... · cb61cc74
      Tiago Peixoto authored
      Complete overhaul of command line parsing, and support for loading graph-tool as whole as a python module
          
      The command line parsing was completely rewritten. It now supports
      better parsing of sub-options, with type checking and grouping
      support. Error reporting was also significantly improved, and it now
      warns of invalid options and option values, before the option is
      executed. Some syntax has changed, such as range filtering:
      --[vertex|edge]-range-filter was replaced by
      --exclude-[vertex|edge]-range and --keep-[vertex|edge]-range, which
      should have a clearer meaning. Ranges can also be specified now by
      comparison operators (>,<,>=,<=,=), such as ">=10", to indicate a
      range of (10, inf). In addition, ranges can now be easily open or
      closed at either end, by suffixing the specific end with '*', to
      indicate it is closed, ex: "10 700*" means (10,700].
          
      The graph-tool script can now be loaded as a python module (it must be
      renamed first to 'something.py'). All the command line options (except
      'for' and 'history' which become irrelevant) are available as
      functions, with full description and optional parameter support. In
      addition, pure function objects can be given as parameters where
      expressions are asked, instead of strings and files, which enables
      convenient extension of graph-tool.
      cb61cc74
  26. 04 Oct, 2007 1 commit
    • Tiago Peixoto's avatar
      · 8e962092
      Tiago Peixoto authored
      Simplify range filtering, and definitely remove python filtering
          
      Simplify range filtering of vertices and edges, by always filtering
      both at once, even if all vertices or edges are being considered. This
      severely reduces compilation time and memory, at a small potential
      cost in run-time speed, which will probably be overshadowed by other
      things, such as dynamic_map look-ups ("premature optimization is the
      root of all evil"). Also, remove python-filtering, since, in the end,
      it is just code bloat, since it is quite slow for most uses and can be
      replaced, generally, by python property editing + range filtering.
      8e962092
  27. 11 Jul, 2007 1 commit
    • Tiago Peixoto's avatar
      · 32990eb6
      Tiago Peixoto authored
              * ChangeLog: updated ChangeLog file with svn history
      
              * src/graph/graph_filtering.hh: added add_edge() and remove_edge() functions for filtered graphs
      
              * src/graph/shared_map.hh: included SharedContainer
      
              * src/graph/graph_rewiring.cc: initial support for random graph rewiring
      
      
      
      git-svn-id: https://svn.forked.de/graph-tool/trunk@114 d4600afd-f417-0410-95de-beed9576f240
      32990eb6
  28. 30 Jun, 2007 2 commits
  29. 18 May, 2007 1 commit
  30. 30 Jan, 2007 1 commit
  31. 29 Jan, 2007 1 commit
  32. 25 Jan, 2007 1 commit
  33. 15 Nov, 2006 1 commit
  34. 14 Nov, 2006 1 commit
  35. 04 Sep, 2006 1 commit
  36. 17 Aug, 2006 1 commit
  37. 16 Aug, 2006 1 commit
  38. 15 Aug, 2006 1 commit