On Fri, 10 Jul 2009, Anna Kazeykina wrote:
Hello,
I tried to compile and run in VS 2008 the following example illustrating how to use read_graphviz() function:
#include <boost/graph/graphviz.hpp>
#include <boost/graph/adjacency_list.hpp>
#include <string>
#include <sstream>
using namespace boost;
using namespace std;
int main() {
// Vertex properties
typedef property < vertex_name_t, std::string,
property < vertex_color_t, float > > vertex_p;
// Edge properties
typedef property < edge_weight_t, double > edge_p;
// Graph properties
typedef property < graph_name_t, std::string > graph_p;
// adjacency_list-based type
typedef adjacency_list < vecS, vecS, directedS,
vertex_p, edge_p, graph_p > graph_t;
// Construct an empty graph and prepare the dynamic_property_maps.
graph_t graph(0);
dynamic_properties dp;
property_map<graph_t, vertex_name_t>::type name =
get(vertex_name, graph);
dp.property("node_id",name);
property_map<graph_t, vertex_color_t>::type mass =
get(vertex_color, graph);
dp.property("mass",mass);
property_map<graph_t, edge_weight_t>::type weight =
get(edge_weight, graph);
dp.property("weight",weight);
// Use ref_property_map to turn a graph property into a property map
boost::ref_property_map<graph_t*,std::string>
gname(get_property(graph,graph_name));
dp.property("name",gname);
// Sample graph as an std::istream;
std::istringstream
gvgraph("digraph { graph [name=\"graphname\"] a c e [mass = 6.66] }");
bool status = read_graphviz(gvgraph,graph,dp,"node_id");
return 0;
}
When I run the program I get the Debug Assertion Failed message (when I delete the line with read_graphviz everything is OK). Could you please help me with this problem?
What is the assertion saying? That might give you information about what to fix to make the code work. -- Jeremiah Willcock