sl@0: // Copyright 2004 The Trustees of Indiana University.
sl@0: 
sl@0: // Distributed under the Boost Software License, Version 1.0.
sl@0: // (See accompanying file LICENSE_1_0.txt or copy at
sl@0: // http://www.boost.org/LICENSE_1_0.txt)
sl@0: 
sl@0: //  Authors: Douglas Gregor
sl@0: //           Andrew Lumsdaine
sl@0: #ifndef BOOST_GRAPH_RANDOM_LAYOUT_HPP
sl@0: #define BOOST_GRAPH_RANDOM_LAYOUT_HPP
sl@0: 
sl@0: #include <boost/graph/graph_traits.hpp>
sl@0: #include <boost/random/uniform_int.hpp>
sl@0: #include <boost/random/uniform_01.hpp>
sl@0: #include <boost/random/uniform_real.hpp>
sl@0: #include <boost/type_traits/is_integral.hpp>
sl@0: #include <boost/mpl/if.hpp>
sl@0: 
sl@0: namespace boost {
sl@0: 
sl@0: template<typename Graph, typename PositionMap, typename Dimension, 
sl@0:          typename RandomNumberGenerator>
sl@0: void
sl@0: random_graph_layout(const Graph& g, PositionMap position_map,
sl@0:                     Dimension minX, Dimension maxX, 
sl@0:                     Dimension minY, Dimension maxY,
sl@0:                     RandomNumberGenerator& gen)
sl@0: {
sl@0:   typedef typename mpl::if_<is_integral<Dimension>,
sl@0:                             uniform_int<Dimension>,
sl@0:                             uniform_real<Dimension> >::type distrib_t;
sl@0:   typedef typename mpl::if_<is_integral<Dimension>,
sl@0:                             RandomNumberGenerator&,
sl@0:                             uniform_01<RandomNumberGenerator, Dimension> >
sl@0:     ::type gen_t;
sl@0: 
sl@0:   gen_t my_gen(gen);
sl@0:   distrib_t x(minX, maxX);
sl@0:   distrib_t y(minY, maxY);
sl@0:   typename graph_traits<Graph>::vertex_iterator vi, vi_end;
sl@0:   for(tie(vi, vi_end) = vertices(g); vi != vi_end; ++vi) {
sl@0:     position_map[*vi].x = x(my_gen);
sl@0:     position_map[*vi].y = y(my_gen);
sl@0:   }
sl@0: }
sl@0: 
sl@0: } // end namespace boost
sl@0: 
sl@0: #endif // BOOST_GRAPH_RANDOM_LAYOUT_HPP