public void AddStep(RenderTargetBitmap bitmap, GraphAdjList <string> graph)
{
Grid grid = new Grid();
ColumnDefinition newColumnDefinition = new ColumnDefinition();
//newColumnDefinition.Width = 1;
grid.ColumnDefinitions.Add(newColumnDefinition);
grid.ColumnDefinitions.Add(new ColumnDefinition());
Image image = new Image();
image.Width = bitmap.Width / 2;
image.Height = bitmap.Height / 2;
image.Source = bitmap;
grid.Children.Add(image);
Grid.SetColumn(image, 0);
ControlLibrary_Graph.GraphAdjListShow graphAdjListShow = new ControlLibrary_Graph.GraphAdjListShow();
graphAdjListShow.Graph = graph;
grid.Children.Add(graphAdjListShow);
Grid.SetColumn(graphAdjListShow, 1);
grids.AddLast(grid);
this.topologicalSortImages.ItemsSource = grids;
}
void BFS(GraphAdjList G, int s)
{
var queue = new Queue <int>();
queue.Enqueue(s);
distTo[s] = 0;
while (queue.Count != 0)
{
int v = queue.Dequeue();
foreach (var w in G.GetAdj(v))
{
//if we reach the destination node, clear the queue to stop the search.
if (w == e)
{
distTo[w] = distTo[v] + 1;
edgeTo[w] = v;
queue.Clear();
break;
}
if (distTo[w] == -1)
{
queue.Enqueue(w);
distTo[w] = distTo[v] + 1;
edgeTo[w] = v;
}
}
}
}
public void BreadthFirstTest()
{
var nodes = new GraphNode <int> [8];
for (int i = 0; i < nodes.Length; i++)
{
nodes[i] = new GraphNode <int>(i + 1);
}
var graph = new GraphAdjList <int>(nodes);
graph.SetEdge(nodes[0], nodes[1], 1);
graph.SetEdge(nodes[0], nodes[2], 1);
graph.SetEdge(nodes[1], nodes[3], 1);
graph.SetEdge(nodes[1], nodes[4], 1);
graph.SetEdge(nodes[3], nodes[7], 1);
graph.SetEdge(nodes[4], nodes[7], 1);
graph.SetEdge(nodes[2], nodes[5], 1);
graph.SetEdge(nodes[2], nodes[6], 1);
graph.SetEdge(nodes[5], nodes[6], 1);
foreach (var node in graph.BreadthFirst())
{
Console.WriteLine(node.Data.Data);
}
}
private IGraph <string> ReadDirectedGraphFromString(string graphString)
{
var graph = new GraphAdjList <string>();
var lines = graphString.Split(Environment.NewLine).Where(s => !string.IsNullOrEmpty(s)).ToList();
foreach (var line in lines)
{
string[] strings = line.Split("-");
Vertex <string> v = new Vertex <string> {
Value = strings[0]
};
graph.Vertices.Add(v);
}
foreach (var line in lines)
{
string[] strings = line.Split("-");
Vertex <string> vertex = graph.Vertices.First(v => v.Value == strings[0]);
foreach (string neighbour in strings[1].Split(","))
{
if (neighbour != "")
{
var edge = new Edge <string>()
{
From = vertex, To = graph.Vertices.First(v => v.Value == neighbour)
};
graph.AddEdges(new [] { edge });
}
}
}
return(graph);
}
private void ButtonClick_SubmitGraph(object sender, RoutedEventArgs e)
{
this.graph = new ClassLibrary_Graph.GraphAdjList <string>(this.graphShowControl.Graph);
topoSort = new LinkedList <VexNode <string> >();
ShowGraphAdjListShowWindow();
ShowCriticalPathWindow();
ShowTopologicalSortWindow();
}
public void Create_Graph_With_6_Nodes_Add_Link_From_0To1_Assert_AreLinked_ZeroToOne()
{
var graph = new GraphAdjList(new int[] { 0, 1, 2, 3, 4, 5 });
Assert.AreEqual(6, graph.NumberOfVertices);
graph.AddDirectedEdge(0, 1);
var neighbours = graph.GetNeighbours(0);
Assert.AreEqual(1, neighbours[0]);
}
void Start()
{
nodes = new Node <string> [8];
graph = new GraphAdjList <string>(nodes);
nodes[0] = new Node <string>("a");
graph.SetNode(0, nodes[0]);
nodes[1] = new Node <string>("b");
graph.SetNode(1, nodes[1]);
nodes[2] = new Node <string>("c");
graph.SetNode(2, nodes[2]);
nodes[3] = new Node <string>("d");
graph.SetNode(3, nodes[3]);
nodes[4] = new Node <string>("e");
graph.SetNode(4, nodes[4]);
nodes[5] = new Node <string>("f");
graph.SetNode(5, nodes[5]);
nodes[6] = new Node <string>("g");
graph.SetNode(6, nodes[6]);
nodes[7] = new Node <string>("h");
graph.SetNode(7, nodes[7]);
graph.SetEdge(graph.GetNode(0), graph.GetNode(1), 100);
graph.SetEdge(graph.GetNode(0), graph.GetNode(2), 150);
graph.SetEdge(graph.GetNode(1), graph.GetNode(3), 200);
graph.SetEdge(graph.GetNode(1), graph.GetNode(4), 50);
graph.SetEdge(graph.GetNode(3), graph.GetNode(7), 75);
graph.SetEdge(graph.GetNode(4), graph.GetNode(7), 300);
graph.SetEdge(graph.GetNode(2), graph.GetNode(5), 300);
graph.SetEdge(graph.GetNode(2), graph.GetNode(6), 300);
graph.SetEdge(graph.GetNode(5), graph.GetNode(6), 300);
//for (int i = 0; i < graph.GetNumOfVertex(); i++)
//{
// Debug.Log(graph.GetNode(i).Data);
//}
//for (int i = 0; i < graph.GetNumOfVertex(); i++)
//{
// for (int j = 0; j < graph.GetNumOfVertex(); j++)
// {
// Debug.Log(graph.GetEdge(i, j));
// }
//}
//graph.BFSTravel();
//graph.DFSTravel();
}
public void Create_Graph_With_6_Nodes_Add_Another_Node_Add_Link_From_5To6_Assert_AreLinked_ZeroToOne()
{
var graph = new GraphAdjList(new int[] { 0, 1, 2, 3, 4, 5 });
Assert.AreEqual(6, graph.NumberOfVertices);
graph.AddVertex();
graph.AddDirectedEdge(5, 6);
var neighbours = graph.GetNeighbours(5);
Assert.AreEqual(6, neighbours[0]);
}
public void DFS(GraphAdjList G, int v)
{
marked[s] = true;
foreach (var w in G.GetAdj(v))
{
if (!marked[w])
{
DFS(G, w);
edgeTo[w] = v;
}
}
}
public BreadthFirstSearch(GraphAdjList G, int s)
{
edgeTo = new int[G.VertexCount];
distTo = new int[G.VertexCount];
for (int i = 0; i < G.VertexCount; i++)
{
distTo[i] = -1;
edgeTo[i] = -1;
}
this.s = s;
BFS(G, s);
}
public void TestAdjacencyListGraphTraversal()
{
GraphAdjList g = new GraphAdjList(4);
g.AddEdge(0, 1);
g.AddEdge(0, 2);
g.AddEdge(1, 2);
g.AddEdge(2, 0);
g.AddEdge(2, 3);
g.AddEdge(3, 3);
string dfs = g.DepthFirstTraversal(2).Trim();
Assert.IsTrue(string.Equals(dfs, "2 0 1 3", System.StringComparison.OrdinalIgnoreCase));
string bfs = g.BreadthFirstTraversal(2).Trim();
Assert.IsTrue(string.Equals(bfs, "2 0 3 1", System.StringComparison.OrdinalIgnoreCase));
}
public int RunSimulation()
{
if (Data.UniqueListOfNodes.Count == null || Data.UniqueListOfNodes.Count < 2)
{
Console.WriteLine("\n\nTrivial or non-existent graph, exiting.");
return(0);
}
//Get the user to enter the starting and destination node
int startNode = getUserToEnterNode(1);
int destinationNode = getUserToEnterNode(2);
if (startNode == destinationNode)
{
Console.WriteLine("\n\nTrivial case, i.e. distance from node to itself is 0, exiting.");
return(0);
}
Console.WriteLine("\n\nRunning simulation.");
//Generate and populate the GraphAdjList object
GraphAdjList graph = new GraphAdjList(Data.UniqueListOfNodes.Count());
for (int i = 0; i < Data.IndexI.Count; i++)
{
graph.AddEdge(Data.IndexI[i], Data.IndexJ[i]);
}
BreadthFirstSearch bfs = new BreadthFirstSearch(graph, startNode, destinationNode);
if (bfs.distTo[destinationNode] != -1)
{
Console.WriteLine("\n\nNode {0} and Node {1} linked after {2} steps. Exiting.", startNode, destinationNode, bfs.distTo[destinationNode]);
}
else
{
Console.WriteLine("\n\nNode {0} and Node {1} are not linked. Exiting.", startNode, destinationNode);
}
return(1);
}
void BFS(GraphAdjList G, int s)
{
var queue = new Queue <int>();
queue.Enqueue(s);
distTo[s] = 0;
while (queue.Count != 0)
{
int v = queue.Dequeue();
foreach (var w in G.GetAdj(v))
{
if (distTo[w] == -1)
{
queue.Enqueue(w);
distTo[w] = distTo[v] + 1;
edgeTo[w] = v;
}
}
}
}
public void Create_Graph_With_7_Nodes_One_At_A_Time()
{
var graph = new GraphAdjList(new int[] { 0 });
graph.AddVertex();
graph.AddVertex();
graph.AddVertex();
graph.AddDirectedEdge(1, 2);
graph.AddDirectedEdge(2, 0);
graph.AddVertex();
graph.AddDirectedEdge(0, 3);
graph.AddVertex();
graph.AddDirectedEdge(3, 4);
graph.AddVertex();
graph.AddDirectedEdge(5, 4);
graph.AddVertex();
graph.AddDirectedEdge(6, 5);
graph.AddDirectedEdge(6, 4);
var zerosNeighbours = graph.GetNeighbours(0);
var onesNeighbours = graph.GetNeighbours(1);
var twosNeighbours = graph.GetNeighbours(2);
var threessNeighbours = graph.GetNeighbours(3);
var foursNeighbours = graph.GetNeighbours(4);
var fivesNeighbours = graph.GetNeighbours(5);
var sixsNeighbours = graph.GetNeighbours(6);
Assert.AreEqual(3, zerosNeighbours[0]);
Assert.IsTrue(sixsNeighbours.Contains(5));
Assert.IsTrue(sixsNeighbours.Contains(4));
Assert.IsTrue(onesNeighbours.Contains(2));
Assert.IsTrue(twosNeighbours.Contains(0));
Assert.IsTrue(threessNeighbours.Contains(4));
Assert.IsTrue(foursNeighbours.Count == 0);
Assert.IsTrue(fivesNeighbours.Contains(4));
}
public void Set(GraphAdjList <string> graph, Image image, int[] e, int[] l, int[] sub, bool[] flag, Edge <string>[] edges, int[] ve, int[] vl, int[] topo_sort_index)
{
this.CriticalPathGrid.Children.Add(image);
Grid.SetColumn(image, 1);
Grid.SetRow(image, 1);
this.e = e; this.l = l; this.sub = sub;
this.flag = flag; this.edges = edges;
this.ve = ve; this.vl = vl; this.topo_sort_index = topo_sort_index;
for (int i = 0; i < graph.GetNumOfVertex(); i++)
{
VexCPInfo newVexInfo = new VexCPInfo();
newVexInfo.Data = graph.GetVexNode(i).Data.Data;
newVexInfo.Ve = ve[i].ToString();
newVexInfo.Vl = vl[i].ToString();
vexCPData.Add(newVexInfo);
}
for (int i = 0; i < graph.GetNumOfEdge(); i++)
{
EdgeCPInfo newEdgeInfo = new EdgeCPInfo();
newEdgeInfo.Edge = edges[i].Tail + "-" + edges[i].Head;
newEdgeInfo.E = e[i].ToString();
newEdgeInfo.L = l[i].ToString();
newEdgeInfo.Sub = sub[i].ToString();
EdgeCPData.Add(newEdgeInfo);
}
//VexDataGrid.DataContext = vexCPData;
//EdgeDataGrid.DataContext = EdgeCPData;
VexDataGrid.ItemsSource = vexCPData;
EdgeDataGrid.ItemsSource = EdgeCPData;
}
public DepthFirstSearch(GraphAdjList G, int s)
{
marked = new bool[G.VertexCount];
edgeTo = new int[G.VertexCount];
this.s = s;
}
public void Create_Graph_With_6_Nodes_Assert_NumberOfVertex_6()
{
var graph = new GraphAdjList(new int[] { 0, 1, 2, 3, 4, 5 });
Assert.AreEqual(6, graph.NumberOfVertices);
}
public FFFF()
{
GraphAdjList <int> xx = new GraphAdjList <int>();
IGraph <int> xxx = xx;
}
public void MergePlanes()
{
GraphAdjList planeGraph = new GraphAdjList(extractionPlaneRec.Count);
for (int i = 0; i < extractionPlaneRec.Count; i++)
{
for (int j = i + 1; j < extractionPlaneRec.Count; j++)
{
double dis1 = 0;
for (int loop = 0; loop < extractionPlaneRec[i].Value; loop++)
{
dis1 += Math.Abs(extractionPlaneRec[i].Points[loop].x * extractionPlaneRec[j].NormalABC.x +
extractionPlaneRec[i].Points[loop].y * extractionPlaneRec[j].NormalABC.y +
extractionPlaneRec[i].Points[loop].z * extractionPlaneRec[j].NormalABC.z -
extractionPlaneRec[j].D) / extractionPlaneRec[j].D;
}
dis1 /= extractionPlaneRec[i].Value;
double dis2 = 0;
for (int loop = 0; loop < extractionPlaneRec[j].Value; loop++)
{
dis2 += Math.Abs(extractionPlaneRec[j].Points[loop].x * extractionPlaneRec[i].NormalABC.x +
extractionPlaneRec[j].Points[loop].y * extractionPlaneRec[i].NormalABC.y +
extractionPlaneRec[j].Points[loop].z * extractionPlaneRec[i].NormalABC.z -
extractionPlaneRec[i].D) / extractionPlaneRec[i].D;
}
dis2 /= extractionPlaneRec[j].Value;
double dis = (dis1 * extractionPlaneRec[j].Value + dis2 * extractionPlaneRec[i].Value) /
(extractionPlaneRec[i].Value + extractionPlaneRec[j].Value);
if (extractionPlaneRec[i].NormalABC.Dot(extractionPlaneRec[j].NormalABC) > Math.Cos(10 * Math.PI / 180) &&
dis < 0.04)
{
planeGraph.AddEdge(i, j);
}
}
}
int groupIdx = 0;
int[] clusterInd = new int[extractionPlaneRec.Count];
bool[] visited = new bool[extractionPlaneRec.Count];
DepthFirstSearch dfs = new DepthFirstSearch();
for (int i = 0; i < extractionPlaneRec.Count; i++)
{
if (!visited[i])
{
dfs.DFS(planeGraph, ref visited, i, ref clusterInd, groupIdx);
groupIdx++;
}
}
mergedPlaneRec = new List <pointPlaneClass>();
for (int i = 0; i < groupIdx; i++)
{
mergedPlaneRec.Add(new pointPlaneClass(i, 0));
}
for (int i = 0; i < extractionPlaneRec.Count; i++)
{
mergedPlaneRec[clusterInd[i]].Value += extractionPlaneRec[i].Value;
mergedPlaneRec[clusterInd[i]].Points.AddRange(extractionPlaneRec[i].Points);
mergedPlaneRec[clusterInd[i]].PointsIdx.AddRange(extractionPlaneRec[i].PointsIdx);
foreach (int pi in extractionPlaneRec[i].PointsIdx)
{
pointLabels[pi] = clusterInd[i];
}
}
for (int i = 0; i < mergedPlaneRec.Count; i++)
{
MyVector4 returnedvalue = pointToPlaneClustering.RANSACNormal(mergedPlaneRec[i].Points, null, 0.0002, 0.9, 100);
mergedPlaneRec[i].NormalABC = new MyVector3(returnedvalue.x, returnedvalue.y, returnedvalue.z);
mergedPlaneRec[i].D = returnedvalue.w;
}
}
private IGraph <MazeField> BuildGraphFromMaze(TwoDMaze maze)
{
GraphAdjList <MazeField> graph = new GraphAdjList <MazeField>();
List <Vertex <MazeField> > vertices = new List <Vertex <MazeField> >();
int W = maze.Fields.GetLength(0);
int H = maze.Fields.GetLength(1);
int[] ii = new[] { 0, 0, 1, -1 };
int[] jj = new[] { 1, -1, 0, 0 };
var verticeGrid = new Vertex <MazeField> [W, H];
for (int i = 0; i < W; i++)
{
for (int j = 0; j < H; j++)
{
if (maze.Fields[i, j].FieldType == FieldType.Obstacle)
{
continue;
}
verticeGrid[i, j] = new Vertex <MazeField>()
{
Value = maze.Fields[i, j]
};
}
}
for (int i = 0; i < W; i++)
{
for (int j = 0; j < H; j++)
{
if (maze.Fields[i, j].FieldType == FieldType.Obstacle)
{
continue;
}
for (int step = 0; step < 4; step++)
{
int nextX = i + ii[step];
int nextY = j + jj[step];
if (nextY >= H || nextY < 0)
{
continue;
}
if (nextX >= W || nextX < 0)
{
continue;
}
if (maze.Fields[nextX, nextY].FieldType == FieldType.Clear)
{
Edge <MazeField> edgeTo = new Edge <MazeField>()
{
From = verticeGrid[i, j],
To = verticeGrid[nextX, nextY]
};
Edge <MazeField> edgeFrom = new Edge <MazeField>()
{
To = verticeGrid[i, j],
From = verticeGrid[nextX, nextY]
};
graph.AddEdges(new [] { edgeFrom, edgeTo });
}
}
vertices.Add(verticeGrid[i, j]);
}
}
graph.AddVertices(vertices);
return(graph);
}