/// <summary>
/// Connect vertext to pin.
/// </summary>
/// <param name="vertex">vertex</param>
public void Connect(IVertex vertex)
{
Edges.Add(new Edge(Owner, vertex));
}
/// <summary>
/// Disconnect vertext from pin.
/// </summary>
/// <param name="vertex">vertex</param>
public bool Disconnect(IVertex vertex)
{
return(Edges.Remove(Edges[vertex]));
}
/// <summary>
/// Determine whether the vertext is connected to the pin.
/// </summary>
/// <param name="vertex">vertex</param>
/// <returns>
/// true : if connected.
/// false: if not connected.
/// </returns>
public bool IsConnected(IVertex vertex)
{
return(Edges.Contains(vertex.Id));
}