Question

为QT运行Boost.Graph示例4会产生流动错误：

无法匹配调用'（boost :: dynamic_properties）（std :: bacic_ostream＆gt;＆amp ;, unsigned int）'graphvic.hpp

错误发生在graphvic.hpp的以下行：

for(boost::tie(i,end) = vertices(g); i != end; ++i) {
      out << escape_dot_string(get(vertex_id, *i));
      vpw(out, *i); //print vertex attributes
      out << ";" << std::endl;
}

我无法找出错误的原因。下面是Boost.Graph示例4代码。请帮帮我。

typedef boost::adjacency_list
  <   
    boost::vecS,  
    boost::vecS,  
    boost::undirectedS,  
    boost::property<boost::vertex_name_t,std::string>,   
    boost::property<boost::edge_weight_t,double>,   
    boost::property<boost::graph_name_t,std::string>
  > Graph;

  Graph  g;

  std::vector<std::string> names;
  names.push_back("Mr_A");
  names.push_back("Mrs_B");
  names.push_back("Dr_C");
  names.push_back("Prof_D");

  const Graph::vertex_descriptor v0 = boost::add_vertex(names[0],g);
  const Graph::vertex_descriptor v1 = boost::add_vertex(names[1],g);
  const Graph::vertex_descriptor v2 = boost::add_vertex(names[2],g);
  const Graph::vertex_descriptor v3 = boost::add_vertex(names[3],g);

  std::vector<double> frequencies;
  frequencies.push_back(0.9);
  frequencies.push_back(0.5);
  frequencies.push_back(0.6);
  frequencies.push_back(0.1);

  boost::add_edge(v0,v1,frequencies[0],g);
  boost::add_edge(v1,v2,frequencies[1],g);
  boost::add_edge(v2,v3,frequencies[2],g);
  boost::add_edge(v0,v3,frequencies[3],g);

  //Writing graph to file
  {
    std::ofstream f("test.dot");

    boost::dynamic_properties p;
    p.property("label", boost::get(boost::edge_weight, g));
    p.property("weight", boost::get(boost::edge_weight, g));
    p.property("node_id", boost::get(boost::vertex_name, g));
    boost::write_graphviz(f,g,p);
    f.close();
  }

谢谢，普拉卡什

Answer 1

您可以将write_graphviz更改为write_graphviz_dp并重试，它应该可以工作，但是，我不知道下面的故事。有人会给出一些解释吗？

Answer 2

函数get()的调用无效。第二个参数应该是图形，而不是顶点描述符。另外，您没有指定它是什么vertex_id。可能你的意思是vertext_name_t？

Boost.Graph示例4 dynamic_properties错误

2 个答案: