VTK/Examples/Cxx/Graphs/ConstructGraph

This example shows how to construct a simple graph.

#include <vtkMutableUndirectedGraph.h>

#include <iostream>
#include <string>

int main(int argc, char *argv[])
{
	vtkMutableUndirectedGraph* G = vtkMutableUndirectedGraph::New();
	
	vtkIdType V1 = G->AddVertex();
	vtkIdType V2 = G->AddVertex();
	
	G->AddEdge(V1, V2);
			
    std::cout << "Number of vertices: " << G->GetNumberOfVertices() << std::endl;
    
    std::cout << "Number of edges: " << G->GetNumberOfEdges() << std::endl;
    
    //cleanup
    G->Delete();
	return 0;
}