public EdgeViewModel(SwapablePair <NodeViewModel> pos)
{
Pos = pos;
Pos.First.PropertyChanged += NodeViewPropertyChanged;
Pos.Second.PropertyChanged += NodeViewPropertyChanged;
_weight = 1;
_color = new SolidColorBrush(Colors.Black);
}
public Path(int node1, int node2, int weight)
{
Target = new SwapablePair <int>(node1, node2);
Weight = weight;
}