public static GraphExample Example2()
{
var graph = new GraphExample();
// 1. add vertexes
var vertices = new[]
{
new DataVertex(1),
new DataVertex(2),
new DataVertex(3),
new DataVertex(4),
};
// 2. add edges
graph.AddVertex(vertices[0]);
graph.AddVertex(vertices[1]);
graph.AddVertex(vertices[2]);
graph.AddEdge(new DataEdge(vertices[0], vertices[1]));
graph.AddEdge(new DataEdge(vertices[1], vertices[2]));
graph.AddEdge(new DataEdge(vertices[2], vertices[0]));
graph.AddVerticesAndEdge(new DataEdge(vertices[2], vertices[3]));
return(graph);
}