private OverlayEdge AddEdge(OverlayGraph graph, double x1, double y1, double x2, double y2)
{
var pts = new [] {
new Coordinate(x1, y1), new Coordinate(x2, y2)
};
return(graph.AddEdge(pts, new OverlayLabel()));
}
private OverlayGraph CreateGraph(params Coordinate[][] edges)
{
var graph = new OverlayGraph();
foreach (var e in edges)
{
graph.AddEdge(e, new OverlayLabel());
}
return(graph);
}