public void AddEdge(Vertex partner, int weight)
{
Edges.Add(new Edge(this, partner, weight));
if (!partner.Edges.Contains(Edges.LastOrDefault()))
{
partner.AddEdge(Edges.LastOrDefault());
}
}
public bool AreConnect(Vertex v1, Vertex v2, List<Vertex> tree, List<Edge> visited)
{
bool connected = false;
Queue<Vertex> queue = new Queue<Vertex>();
List<Edge> visitedEdges = new List<Edge>();
queue.Enqueue(v1);
while(queue.Count > 0)
{
Vertex temp = queue.Dequeue();
if (temp == v2)
{
connected = true;
break;
}
foreach (Edge e in temp.Edges)
{
if(visited.Contains(e))
{
if (!visitedEdges.Contains(e))
{
visitedEdges.Add(e);
if (e.Vertex1 == temp)
{
queue.Enqueue(e.Vertex2);
}
else
{
queue.Enqueue(e.Vertex1);
}
}
}
}
}
return connected;
}
private void DFS(Vertex v)
{
v.visited = true; //将访问标志设为true
//Console.Write(v.data + " "); //访问
dfsPath.Append(v.data + " ");
Node node = v.firstEdge;
while (node != null) //访问此顶点的所有邻接点
{
//如果邻接点未被访问，则递归访问它的边
if (!node.adjvex.visited)
{
DFS(node.adjvex); //递归
}
node = node.next; //访问下一个邻接点
}
}
//添加有向边
private void AddDirectedEdge(Vertex fromVer, Vertex toVer)
{
if (fromVer.firstEdge == null) //无邻接点时
{
fromVer.firstEdge = new Node(toVer);
}
else
{
Node tmp, node = fromVer.firstEdge;
do
{ //检查是否添加了重复边
if (node.adjvex.data.Equals(toVer.data))
{
throw new ArgumentException("添加了重复的边！");
}
tmp = node;
node = node.next;
} while (node != null);
tmp.next = new Node(toVer); //添加到链表未尾
}
}
public int GetIndexOfVertex(Vertex v1)
{
for (int V = 0; V < Vertices.Length; V++) {
if (v1.label == Vertices [V].label) {
return V;
}
}
return -1;
}
public Edge(Vertex vertex, Vertex partner, int weight)
{
this.Vertex1 = vertex;
this.Vertex2 = partner;
this.Weight = weight;
}
private static void ConsoleWriteFromTo(Func <Vertex, Vertex, List <Vertex> > function, Vertex from, Vertex to)
{
Console.WriteLine($"Путь из {from} в {to}");
var tmp = function(from, to);
if (tmp == null || tmp.Count == 0)
{
Console.Write("Нет такого пути!!");
}
else
{
foreach (var item in function(from, to))
{
Console.Write($"{item},");
}
}
Console.WriteLine();
}
/// <summary>
/// 頂点を追加する
/// </summary>
/// <param name="v"></param>
public void AddVertex(Vertex v)
{
Vertices.Add(v);
InEdges.Add(new List<Edge>());
OutEdges.Add(new List<Edge>());
}
public void LinkVertex(Vertex v1, Vertex v2, int weight)
{
v1.AddEdge(v2, weight);
Edges.Add(v1.Edges.LastOrDefault());
}
public void LinkVertex(Vertex v1, Vertex v2)
{
v1.AddEdge(v2);
Edges.Add(v1.Edges.LastOrDefault());
}
public void InsertVertex(Vertex vertex)
{
if (Vertices.Count == 0)
{
Root = vertex;
}
Vertices.Add(vertex);
}
public Edge(Vertex <T> from, Vertex <T> to, int weight = 1)
{
v = from;
u = to;
w = weight;
}
public void ShowEdgesOfVertex(Vertex v)
{
int thisIndex = GetIndexOfVertex (v);
Console.WriteLine (" Vertex Data is " + v.label);
Console.WriteLine (" Edges are ");
for (int i = 0; i < Edges.GetLength(0); i++) {
if (Edges [thisIndex, i] == 1)
Console.Write (GetVertexAtIndex (i).label + " ,");
}
}
public void AddEdge(Vertex v1, Vertex v2)
{
int indexV1 = GetIndexOfVertex (v1);
int indexV2 = GetIndexOfVertex (v2);
Edges [indexV1, indexV2] = 1;
Edges [indexV2, indexV1] = 1;
}
private static void init_algo(List <int> distance, List <int> path, List <adjElement> adj_list, Vertex start_vertex)
{
int index_start_vertex = get_vertex_index(adj_list, start_vertex);
if (index_start_vertex == -1)
{
return;
}
for (int i = 0; i < adj_list[index_start_vertex].Adj_vertices.Count; i++)
{
int index_cur_to_vertex = get_vertex_index(adj_list, adj_list[index_start_vertex].Adj_vertices[i].Vertex);
distance[index_cur_to_vertex] = adj_list[index_start_vertex].Adj_vertices[i].Lenght;
path[index_cur_to_vertex] = index_start_vertex;
}
distance[index_start_vertex] = 0;
}
private static List <Vertex> get_short_path(List <adjElement> adj_list, Vertex start_vertex, Vertex end_vertex, List <int> path)
{
List <Vertex> short_path = new List <Vertex>();
int start_index = get_vertex_index(adj_list, start_vertex);
int end_index = get_vertex_index(adj_list, end_vertex);
while (path[end_index] != start_index)
{
short_path.Add(adj_list[end_index].Vertex);
end_index = path[end_index];
}
short_path.Add(adj_list[end_index].Vertex);
short_path.Add(adj_list[start_index].Vertex);
return(short_path);
}
public void RemoveEdgesFromVertex(Vertex vertex)
{
if (vertex == null)
{
return;
}
vertex.Edges.Clear();
}
public Node next; //下一个邻接点指针域
#endregion Fields
#region Constructors
public Node(Vertex value)
{
adjvex = value;
}
public void RemoveVertex(Vertex vertex)
{
if (vertex == null)
{
return;
}
foreach (Edge edge in vertex.Edges)
{
Vertex partner = null;
if (edge.Vertex1 == vertex)
{
partner = edge.Vertex2;
}
else
{
partner = edge.Vertex1;
}
partner.Edges.Remove(edge);
}
RemoveEdgesFromVertex(vertex);
Vertices.Remove(vertex);
}
public Edge(Vertex vertex, Vertex partner)
{
Vertex1 = vertex;
Vertex2 = partner;
}
public Dictionary<Vertex, int> ShortestPath(Vertex start)
{
Queue<Vertex> queue = new Queue<Vertex>();
List<Edge> visitedEdges = new List<Edge>();
List<Vertex> visitedVertices = new List<Vertex>();
Dictionary<Vertex, int> costs = new Dictionary<Vertex, int>();
costs.Add(start, 0);
queue.Enqueue(start);
while (queue.Count > 0)
{
Vertex temp = queue.Dequeue();
visitedVertices.Add(temp);
foreach (Edge e in temp.Edges)
{
if (!visitedEdges.Contains(e))
{
visitedEdges.Add(e);
}
if (e.Vertex1 == temp)
{
if (!costs.ContainsKey(e.Vertex2) || (costs[e.Vertex2] > costs[temp] + e.Weight))
{
costs[e.Vertex2] = costs[temp] + e.Weight;
queue.Enqueue(e.Vertex2);
}
}
else
{
if (!costs.ContainsKey(e.Vertex1) || (costs[e.Vertex1] > costs[temp] + e.Weight))
{
costs[e.Vertex1] = costs[temp] + e.Weight;
queue.Enqueue(e.Vertex1);
}
}
}
}
return costs;
}
public Creator(int[,] smatrix, bool isDigraph)
{
//Проверка данных
if (smatrix.GetLength(0) != smatrix.GetLength(1))
{
throw new ArgumentException();
}
int length = smatrix.GetLength(0);
if (length < 1 || length > 10)
{
throw new ArgumentException("Количество вершин некорректно");
}
painter?.Dispose();
//Вершины и объекты
Graph.Vertex[] vertices = new Graph.Vertex[length];
List <Shape> shapes = new List <Shape>();
//Инициализация вершин
for (int i = 0; i < length; i++)
{
vertices[i] = new Graph.Vertex()
{
Name = nameVertex[i]
};
shapes.Add(vertices[i]);
}
//Проведем связи (ребра, кольца)
if (isDigraph)
{
//Если граф орентированный
for (int i = 0; i < length; i++)
{
for (int j = 0; j < length; j++)
{
if (smatrix[i, j] > 0)
{
if (i != j)
{
shapes.Add(vertices[i].SetConnect(vertices[j], TypeConnect.DigraphOwn, smatrix[i, j]));
}
else
{
shapes.Add(vertices[i].SetConnect(vertices[i], TypeConnect.Diloop, smatrix[i, j]));
}
}
}
}
}
else
{
//Если граф неорентированный
for (int i = 0; i < length; i++)
{
for (int j = 0; j < length; j++)
{
if (smatrix[i, j] > 0)
{
if (i != j)
{
shapes.Add(vertices[i].SetConnect(vertices[j], TypeConnect.Edge, smatrix[i, j]));
}
else
{
shapes.Add(vertices[i].SetConnect(vertices[i], TypeConnect.Loop, smatrix[i, j]));
}
}
}
}
}
shapes.RemoveAll(item => item == null);
//Размер абстракного блока на плоскости экрана(Размер вешины)
int size = 60;
//Передаем все объекты которые нужно отрисовать отрисовщику, их размер и матрицу их визуального расположениея
switch (length)
{
case 1:
painter = new Painter(shapes, size, new object[, ]
{
{ 'A' },
});
break;
case 2:
painter = new Painter(shapes, size, new object[, ]
{
{ 'A', '0', 'B' },
});
break;
case 3:
painter = new Painter(shapes, size, new object[, ]
{
{ 'A', '0', 'B' },
{ '0', '0', '0' },
{ '0', 'C', '0' },
});
break;
case 4:
painter = new Painter(shapes, size, new object[, ]
{
{ 'A', '0', 'B' },
{ '0', '0', '0' },
{ 'C', '0', 'D' },
});
break;
case 5:
painter = new Painter(shapes, size, new object[, ]
{
{ 'A', '0', '0', '0', 'B' },
{ '0', '0', 'C', '0', '0' },
{ 'D', '0', '0', '0', 'E' },
});
break;
case 6:
painter = new Painter(shapes, size, new object[, ]
{
{ 'A', '0', '0', '0', 'B' },
{ '0', 'C', '0', 'D', '0' },
{ 'E', '0', '0', '0', 'F' },
});
break;
case 7:
painter = new Painter(shapes, size, new object[, ]
{
{ '0', '0', 'C', '0', '0' },
{ 'A', '0', '0', '0', 'B' },
{ '0', 'D', '0', 'E', '0' },
{ 'F', '0', '0', '0', 'G' },
});
break;
case 8:
painter = new Painter(shapes, size, new object[, ]
{
{ '0', '0', 'C', '0', '0' },
{ 'A', '0', '0', '0', 'B' },
{ '0', 'D', '0', 'E', '0' },
{ 'F', '0', '0', '0', 'G' },
{ '0', '0', 'H', '0', '0' },
});
break;
case 9:
painter = new Painter(shapes, size, new object[, ]
{
{ '0', '0', 'C', '0', '0' },
{ 'A', '0', '0', '0', 'B' },
{ '0', 'D', '0', 'E', '0' },
{ 'F', '0', '0', '0', 'G' },
{ '0', 'H', '0', 'I', '0' },
});
break;
case 10:
painter = new Painter(shapes, size, new object[, ]
{
{ '0', 'B', '0', 'C', '0' },
{ 'A', '0', '0', '0', 'D' },
{ '0', 'E', '0', 'F', '0' },
{ 'G', '0', '0', '0', 'H' },
{ '0', 'I', '0', 'J', '0' },
});
break;
default:
break;
}
}
public void AddVertex(string lbl)
{
if (current < Vertices.Length) {
Vertex v = new Vertex (lbl);
Vertices [current] = v;
current++;
}
}