/**
* Saves the graph as a PNG image.
* @param title - the filename of the PNG image
*/
void Graph::savePNG(string title) const
{
std::ofstream neatoFile;
string filename = "images/" + title + ".dot";
neatoFile.open(filename.c_str());
if (!neatoFile.good())
error("couldn't create " + filename + ".dot");
neatoFile
<< "strict graph G {\n"
<< "\toverlap=\"false\";\n"
<< "\tdpi=\"160\";\n"
<< "\tsep=\"1.5\";\n"
<< "\tnode [fixedsize=\"true\", shape=\"circle\", fontsize=\"6.0\"];\n"
<< "\tedge [penwidth=\"1.5\", fontsize=\"6.0\"];\n";
VertexMap::const_iterator it;
for (it = graph.begin(); it != graph.end(); ++it) {
EdgeMap::const_iterator git;
for (git = it->second.begin(); git != it->second.end(); ++git) {
string vertex1Text = getVertexName(it->first);
string vertex2Text = getVertexName(git->first);
neatoFile << "\t\"" << it->first;
neatoFile << vertex1Text;
neatoFile << "\" -- \"" << git->first;
neatoFile << vertex2Text;
neatoFile << "\"";
string edgeLabel = git->second.label;
if (edgeLabel == "MST" || edgeLabel == "MIN"
|| edgeLabel == "MINPATH")
neatoFile << "[color=\"blue\"]";
else if (edgeLabel == "CROSS")
neatoFile << "[color=\"red\"]";
else if (edgeLabel == "DISCOVERY")
neatoFile << "[color=\"green\"]";
else if (edgeLabel == "VISITED")
neatoFile << "[color=\"grey\"]";
if (weighted && git->second.weight != -1)
neatoFile << "[label=\"" << git->second.weight << "\"]";
neatoFile << ";\n";
}
}
neatoFile << "}";
neatoFile.close();
string command = "neato -Tpng " + filename + " -o " + "images/" + title
+ ".png 2> /dev/null";
system(command.c_str());
string rmCommand = "rm -f " + filename + " 2> /dev/null";
system(rmCommand.c_str());
}
/**
* Prints the graph to stdout.
*/
void Graph::print() const
{
VertexMap::const_iterator it;
for (it = graph.begin(); it != graph.end(); ++it) {
cout << it->first << getVertexName(it->first) << endl;
EdgeMap::const_iterator git;
for (git = it->second.begin(); git != it->second.end(); ++git) {
std::stringstream ss;
ss << git->second.dest;
string vertexColumn = " => " + ss.str();
vertexColumn += " " + getVertexName(git->first);
cout << std::left << std::setw(26) << vertexColumn;
string edgeColumn = "edge label = \"" + git->second.label + "\"";
cout << std::left << std::setw(26) << edgeColumn;
if (weighted)
cout << "weight = " << git->second.weight;
cout << endl;
}
cout << endl;
}
}
std::string MultipleNetwork::getGlobalVertexName(std::string local_vertex_name, std::string network_name) {
network_id net = getNetworkId(network_name);
vertex_id local_id = getNetwork(net)->getVertexId(local_vertex_name);
global_vertex_id global_id = getGlobalVertexId(local_id, net);
return getVertexName(global_id);
}
