This example shows a simple graph import plug-in.It details the different functions and possibilities of a Graph import plug-in.
#include <string>
#include <tulip/TulipPluginHeaders.h>
using namespace tlp;
using namespace std;
class CliqueImport: public tlp::ImportModule {
public:
  PLUGININFORMATION(
"Clique", 
"Tulip Team", 
"05/10/2012", 
"Clique Import Plugin", 
"1.0", 
"Graph")
 
  ~CliqueImport();
};
const char * nodeCountDescription =
  
  HTML_HELP_OPEN() \
  HTML_HELP_DEF( "type", "unsigned int" ) \
  HTML_HELP_BODY() \
  "How many nodes the clique will contain" \
  HTML_HELP_CLOSE();
CliqueImport::CliqueImport(tlp::
PluginContext* context):ImportModule(context) {
 
  
  addInParameter<unsigned int>("nodeCount", nodeCountDescription, "5");
  
  addDependency("Circular", "1.1");
}
CliqueImport::~CliqueImport() {
}
  
  unsigned int nodeCount = 5;
  dataSet->get("nodeCount", nodeCount);
  
  for(unsigned int i = 0; i < nodeCount; ++i) {
  }
  
  
  forEach(current, graph->getNodes()) {
    forEach(other, graph->getNodes()) {
      if(current != other) {
        graph->addEdge(current, other);
      }
    }
  }
  
  string message;
  graph->applyPropertyAlgorithm("Circular", layout, message);
  
  return true;
}