[vtkusers] saving vtkGraph to graphviz dot-files

[Dr. Roman Grothausmann]

Dear mailing list members,


It seems there is no vtk-Filter to save a vtkGraph as a graphviz dot-file. 
Therefore, I tried to create a simple program for that but it fails during 
compilation with:


/usr/include/boost/graph/graphviz.hpp:297:5:   required from ‘void 
boost::write_graphviz(std::ostream&, const Graph&, typename 
boost::enable_if_c<boost::is_base_and_derived<boost::vertex_list_graph_tag, 
typename boost::graph_traits<Graph>::traversal_category>::value, 
boost::graph::detail::no_parameter>::type) [with Graph = vtkGraph*; std::ostream 
= std::basic_ostream<char>; typename 
boost::enable_if_c<boost::is_base_and_derived<boost::vertex_list_graph_tag, 
typename boost::graph_traits<Graph>::traversal_category>::value, 
boost::graph::detail::no_parameter>::type = boost::graph::detail::no_parameter]’
/home/grothama/vtk/graphviz-vtk/vtp2dot_01.cxx:47:38:   required from here
/usr/include/boost/graph/graphviz.hpp:255:61: error: no type named 
‘directed_category’ in ‘struct boost::graph_traits<vtkGraph*>’
/usr/include/boost/graph/graphviz.hpp:256:42: error: no type named 
‘directed_category’ in ‘struct boost::graph_traits<vtkGraph*>’
make[2]: *** [CMakeFiles/vtp2dot_01.dir/vtp2dot_01.cxx.o] Error 1


Am I missing something in my code (see attached zip)?

Any help or hints are very much appreciated
Roman
_____


////convert a graph stored in a vtp-file to a dot-file (graphviz)


#include <vtkSmartPointer.h>
#include <vtkXMLPolyDataReader.h>//for vtp-files
#include <vtkPolyDataToGraph.h>

#include "vtkBoostGraphAdapter.h"
#include <boost/graph/graphviz.hpp> // For writing graphs to a file


int main(int argc, char* argv[]){
     if( argc != 3 )
	{
	std::cerr << "Usage: " << argv[0];
	std::cerr << " inputMesh";
	std::cerr << " outputFile";
	std::cerr << std::endl;
	return EXIT_FAILURE;
	}

     if(!(strcasestr(argv[1],".vtp"))) {
	std::cout << "The input should end with .vtp" << std::endl;
	return -1;
	}

     if(!(strcasestr(argv[2],".dot"))) {
	std::cout << "The input should end with .dot" << std::endl;
	return -1;
	}


     vtkSmartPointer<vtkXMLPolyDataReader> reader = 
vtkSmartPointer<vtkXMLPolyDataReader>::New();

     //reader->SetFileName(inputFileName);
     reader->SetFileName(argv[1]);
     reader->Update();

     vtkSmartPointer<vtkPolyDataToGraph> polyDataToGraphFilter= 
vtkSmartPointer<vtkPolyDataToGraph>::New();
     polyDataToGraphFilter->SetInputConnection(reader->GetOutputPort());
     polyDataToGraphFilter->Update();

     vtkGraph* graph= polyDataToGraphFilter->GetOutput();

     std::ofstream fout(argv[2]);
     boost::write_graphviz(fout, graph);


     return EXIT_SUCCESS;
     }


-- 
Dr. Roman Grothausmann

Tomographie und Digitale Bildverarbeitung
Tomography and Digital Image Analysis

Institut für Funktionelle und Angewandte Anatomie, OE 4120
Medizinische Hochschule Hannover
Carl-Neuberg-Str. 1
D-30625 Hannover

Tel. +49 511 532-9574
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