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| <Head> |
| <Title>Boost Graph Library: Random Graph Layout</Title> |
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| |
| <TT>random_graph_layout</TT> |
| </H1> |
| |
| |
| <P> |
| <PRE> |
| <i>// non-named parameter version</i> |
| template<typename Graph, typename PositionMap, typename Topology> |
| void |
| random_graph_layout(const Graph& g, PositionMap position_map, |
| const Topology& space); |
| </PRE> |
| |
| <P> This algorithm places the points of the graph at random |
| locations within a given space. </p> |
| |
| <h3>Where Defined</h3> |
| |
| <a href="../../../boost/graph/random_layout.hpp"><tt>boost/graph/random_layout.hpp</tt></a> |
| |
| <h3>Parameters</h3> |
| |
| IN: <tt>const Graph& g</tt> |
| <blockquote> |
| The graph object on which the algorithm will be applied. |
| The type <tt>Graph</tt> must be a model of |
| <a href="./VertexAndEdgeListGraph.html">Vertex And Edge List Graph</a>. |
| </blockquote> |
| |
| IN/OUT: <tt>PositionMap position</tt> |
| <blockquote> |
| The property map that stores the position of each vertex. The type |
| <tt>PositionMap</tt> must be a model of <a |
| href="../../property_map/doc/LvaluePropertyMap.html">Lvalue Property |
| Map</a> such that the vertex descriptor type of <tt>Graph</tt> is |
| convertible to its key type. Its value type must be |
| <tt>Topology::point_type</tt>, representing the coordinates of the vertex. |
| </blockquote> |
| |
| IN: <tt>const Topology& space</tt> |
| <blockquote> |
| The topology used to lay out the vertices. This parameter describes both the |
| size and shape of the layout area and provides a random number generator used |
| to create random positions within the space. Topologies are described in |
| more detail (with a list of BGL-provided topologies) <a |
| href="topology.html">in separate documentation</a>. |
| </blockquote> |
| |
| <H3>Complexity</H3> |
| <P> The time complexity is <i>O(|V|)</i>. |
| |
| <br> |
| <HR> |
| <TABLE> |
| <TR valign=top> |
| <TD nowrap>Copyright © 2004, 2010</TD><TD> |
| <A HREF="http://www.boost.org/people/doug_gregor.html">Doug Gregor</A>, Indiana University |
| </TD></TR></TABLE> |
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