/// <summary>
/// Removes an edge, if the edge doesn't exist then nothing happens.
/// </summary>
/// <param name="edge">edge reference</param>
virtual public void RemoveEdge(Edge edge)
{
if (edge == null)
{
return;
}
if (!Edges.Contains(edge))
{
return;
}
Node source = edge.SourceNode;
Node target = edge.TargetNode;
if (source != target)
{
source.RemoveOutEdge(edge);
target.RemoveInEdge(edge);
}
else
{
source.RemoveSelfEdge(edge);
}
Edges.Remove(edge);
GeometryGraph.RemoveEdge(edge.GeometryObject as Msagl.Edge);
}
public void AddEdge(Edge edge)
{
if (!Edges.Contains(edge))
{
Edges.Add(edge);
}
}
/// <summary>
/// Adds the edge.
/// </summary>
/// <param name="argEdge">
/// The argument edge.
/// </param>
private void AddEdge(EdgeItem argEdge)
{
if (!Edges.Contains(argEdge))
{
Edges.Add(argEdge);
}
}
public void AddEdge(Node edge)
{
if (!Edges.Contains(edge))
{
Edges.Add(edge);
edge.AddEdge(this);
}
}
/// <summary>
/// Finds edge that connects to the vertex and is not equal to given edge.
/// </summary>
/// <param name="a_edge"></param>
/// <param name="a_vertex"></param>
/// <returns></returns>
public TriangleEdge OtherEdge(TriangleEdge a_edge, Vector2 a_vertex)
{
if (!Edges.Contains(a_edge) || !Vertices.Contains(a_vertex))
{
throw new GeomException("Edge or vertex not contained in triangle");
}
return(Edges.Find(e => e != a_edge && e.IsEndpoint(a_vertex)));
}
/// <summary>
/// Удаление существующего ребра
/// </summary>
protected void RemoveEdge(TE edge)
{
if (!Edges.Contains(edge))
{
throw new Exception("Такого ребра не существует");
}
edge.Previous.NextVertex.Remove(edge);
}
/// <summary>
/// Finds the edge that is not equal to given two.
/// </summary>
/// <param name="a_edge0"></param>
/// <param name="a_edge1"></param>
/// <returns></returns>
public TriangleEdge OtherEdge(TriangleEdge a_edge0, TriangleEdge a_edge1)
{
if (!Edges.Contains(a_edge0) || !Edges.Contains(a_edge1))
{
throw new GeomException("One of the edges not contained in triangle");
}
return(Edges.Find(e => e != a_edge0 && e != a_edge1));
}
public Edge GetOppositeSide(Edge side)
{
if (!Edges.Contains(side))
{
throw new Exception("Side is not part of this quadrangle.");
}
return(Edges.Find(s => !s.HasVertex(side.A) && !s.HasVertex(side.B)));
}
public void AddEdge(ISimpleGraphEdge <T> edge)
{
if (!Edges.Contains(edge))
{
Edges.Add(edge);
}
TopologicalSort();
}
public void SetEdgeWeight(IEdge edge, double weight)
{
if (Edges.Contains(edge))
{
edge.Weight = weight;
}
else
{
throw new ArgumentException("Edge not found");
}
}
/// <summary>
/// Adds an edge to the graph
/// </summary>
/// <param name="first">First vertex</param>
/// <param name="second">Second vertex</param>
/// <param name="data">Data saved in edge</param>
/// <returns>Reference to the created edge</returns>
public void AddEdge(Edge edge)
{
AssertEdge(edge);
if (Edges.Contains(edge))
{
throw new System.ArgumentException("Edge already present in Graph!");
}
Edges.Add(edge);
edge.V1.Edges.Add(edge);
edge.V2.Edges.Add(edge);
}
/// <summary>
/// removes an edge from the graph
/// </summary>
/// <param name="edge">Edge to remove</param>
public void RemoveEdge(Edge edge)
{
AssertEdge(edge);
if (!Edges.Contains(edge))
{
throw new System.ArgumentException("Edge not in Graph!");
}
Edges.Remove(edge);
// remove the edge from both end vertices
edge.V1.Edges.Remove(edge);
edge.V2.Edges.Remove(edge);
}
/// <summary>
/// Adding edge to graph, if it still doesn't exist in graph. And adding vertexes FROM and TO if they still doesn't exist in graph.
/// </summary>
/// <param name="from"></param>
/// <param name="to"></param>
/// <param name="weight"></param>
public void AddEdge(Edge edge)
{
//TODO: check coming data to class MYGRAPH.
if (!Edges.Contains(edge))
{
Edges.Add(edge);
}
AddVertex(edge.From);
AddVertex(edge.To);
MaxLength += edge.Weight;
AllShortestWays = HelpGetAllShortestWays();
}
public static IEnumerable <Edge> Split(this Edges edges)
{
if (edges.Contains(Edge.Top))
{
yield return(Edge.Top);
}
if (edges.Contains(Edge.Bottom))
{
yield return(Edge.Bottom);
}
if (edges.Contains(Edge.Left))
{
yield return(Edge.Left);
}
if (edges.Contains(Edge.Right))
{
yield return(Edge.Right);
}
}
public Edges TriangleEdges(Triangles triangles)
{
if (triangles == null)
{
return(null);
}
Edges edges = new Edges();
int max = triangles.Count;
int pos = 0;
foreach (Triangle triangle in triangles)
{
Edge e1 = new Edge(triangle.p1, triangle.p2);
Edge e2 = new Edge(triangle.p1, triangle.p3);
Edge e3 = new Edge(triangle.p2, triangle.p3);
if (!edges.Contains(e1))
{
edges.Add(e1);
}
if (!edges.Contains(e2))
{
edges.Add(e2);
}
if (!edges.Contains(e3))
{
edges.Add(e3);
}
if (Progress != null)
{
Progress(pos++, max);
}
}
return(edges);
}
/// <summary>
/// Добавление вершины в одну сторону
/// </summary>
protected void AddEdge(TE edge)
{
var c = (Edges.Where(w => (edge.Previous == w.Previous) && (w.NextVertex == edge.NextVertex))).ToArray();
if (Edges.Contains(edge) || c.Any())
{
throw new Exception("Ребро уже присутствует в графе " + edge.Previous.Name + " -> " + edge.NextVertex.Name);
}
if (Vertex.Contains(edge.Previous) && Vertex.Contains(edge.NextVertex))
{
NameVertex[edge.Previous.Name].NextVertex.Add(edge);
}
else
{
IsExistVertex(edge.NextVertex.Name);
IsExistVertex(edge.Previous.Name);
}
}
/// <summary>
/// Adds a vertex to the graph
/// </summary>
/// <returns>Reference to the created vertex</returns>
public void AddVertex <TVertex>(TVertex vertex) where TVertex : Vertex
{
if (vertex == null)
{
throw new ArgumentException("Can't add a vertex that is null!");
}
if (Vertices.Contains(vertex))
{
throw new ArgumentException("Can't add a vertex twice! " + vertex);
}
Vertices.Add(vertex);
foreach (var edge in vertex.Edges)
{
if (!Edges.Contains(edge))
{
Edges.Add(edge);
}
}
}
// ----------------------------------------------------------------------------///
/// <summary>
/// Adds a vertex to the graph
/// </summary>
/// <param name="data">Data saved in vertex</param>
/// <returns>Reference to the created vertex</returns>
public VType AddVertex <VType>(VType vertex) where VType : Vertex
{
if (vertex == null)
{
throw new System.ArgumentException("Can't add a vertex that is null!");
}
if (Vertices.Contains(vertex))
{
throw new System.ArgumentException("Can't add a vertex twice! " + vertex);
}
Vertices.Add(vertex);
foreach (var edge in vertex.Edges)
{
if (!Edges.Contains(edge))
{
Edges.Add(edge);
}
}
return(vertex);
}
public void Connect(int from, int to)
{
NodeViewModel fromNode = Nodes.First(i => i.Key == from);
NodeViewModel toNode = Nodes.First(i => i.Key == to);
var edge1 = new EdgeViewModel(new SwapablePair <NodeViewModel>(fromNode, toNode));
var edge2 = new EdgeViewModel(new SwapablePair <NodeViewModel>(toNode, fromNode));
if (!Edges.Contains(edge1) && !Edges.Contains(edge2))
{
Edges.Add(edge1);
}
else if (Edges.Contains(edge1))
{
Edges.Remove(edge1);
}
else if (Edges.Contains(edge2))
{
Edges.Remove(edge2);
}
}
/// <summary>
/// Add edge to the analisys graph
/// </summary>
/// <param name="edge">New edge</param>
public void AddEdge(Edge edge)
{
List <Edge> startEdgesList = new List <Edge>();
List <Edge> endEdgesList = new List <Edge>();
if (_vertexEdgesDict.TryGetValue(edge.StartVertex, out startEdgesList))
{
if (!startEdgesList.Contains(edge))
{
startEdgesList.Add(edge);
}
}
else
{
_vertexEdgesDict.Add(edge.StartVertex, new List <Edge>()
{
edge
});
}
if (_vertexEdgesDict.TryGetValue(edge.EndVertex, out endEdgesList))
{
if (!endEdgesList.Contains(edge))
{
endEdgesList.Add(edge);
}
}
else
{
_vertexEdgesDict.Add(edge.EndVertex, new List <Edge>()
{
edge
});
}
if (!Edges.Contains(edge))
{
Edges.Add(edge);
}
}
private bool IsMatch(string key, out string matchingEdge)
{
matchingEdge = null;
string reversedKey = Reverse(key);
//if (key == reversedKey) throw new Exception($"{key} is a palindrome");
if (Edges.Contains(key))
{
matchingEdge = key;
return(true);
}
else
{
if (Edges.Contains(reversedKey))
{
matchingEdge = reversedKey;
return(true);
}
}
return(false);
}
public bool ContainsEdge(Relation <T, P> relation)
{
return(Edges.Contains(relation));
}
public bool IsMatchFor(Face face)
{
return(face.Edges.All(e => Edges.Contains(e)));
}
public bool ContainsEdge(object edge) => Edges.Contains(edge);
/// <summary>
/// Contains method for Edges in graph
/// </summary>
/// <param name="edge"></param>
/// <returns></returns>
public bool Contains(Edge edge)
{
return(Edges.Contains(edge));
}