41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
//=======================================================================
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// Copyright 2012 David Doria
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// Authors: David Doria
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//=======================================================================
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#include <iostream>
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#include <boost/array.hpp>
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#include <boost/graph/grid_graph.hpp>
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int main(int argc, char* argv[])
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{
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// A 2D grid graph
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typedef boost::grid_graph<2> GraphType;
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// Create a 5x5 graph
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const unsigned int dimension = 5;
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boost::array<std::size_t, 2> lengths = { { dimension, dimension } };
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GraphType graph(lengths);
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// Get the index map of the grid graph
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typedef boost::property_map<GraphType, boost::vertex_index_t>::const_type indexMapType;
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indexMapType indexMap(get(boost::vertex_index, graph));
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// Create a float for every node in the graph
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boost::vector_property_map<float, indexMapType> dataMap(num_vertices(graph), indexMap);
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// Associate the value 2.0 with the node at position (0,1) in the grid
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boost::graph_traits<GraphType>::vertex_descriptor v = { { 0, 1 } };
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put(dataMap, v, 2.0f);
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// Get the data at the node at position (0,1) in the grid
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float retrieved = get(dataMap, v);
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std::cout << "Retrieved value: " << retrieved << std::endl;
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return 0;
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}
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