public void CreateEdge(Vertex start, Vertex finish)
{
var edge = new Edge(start, finish, EdgesAreDirected, EdgesAreWeighted);
if (EdgesAreDirected)
{
if (start.AdjacentNodes.Contains(finish)) return;
start.AdjacentNodes.Add(finish);
mainWindow.AdjacencyWindow.SetElement(start,finish,"1");
}
else
{
if (start.AdjacentNodes.Contains(finish)||finish.AdjacentNodes.Contains(start)) return;
start.AdjacentNodes.Add(finish);
finish.AdjacentNodes.Add(start);
mainWindow.AdjacencyWindow.SetElement(start, finish, "1");
mainWindow.AdjacencyWindow.SetElement(finish, start, "1");
}
start.IncidentEdges.Add(edge);
finish.IncidentEdges.Add(edge);
Edges.Add(edge);
Panel.SetZIndex(edge.Body, -1);
mainWindow.MainCanvas.Children.Add(edge.Body);
if (EdgesAreWeighted)
mainWindow.MainCanvas.Children.Add(edge.TbWeight);
edge.Update();
}
public void CreateEdge(Vertex source)
{
var newEdge = new Edge(source, EdgesAreDirected, EdgesAreWeighted);
Edges.Add(newEdge);
Panel.SetZIndex(newEdge.Body, -1);
mainWindow.MainCanvas.Children.Add(newEdge.Body);
}
public void FinalizeEdgeCreation(Vertex finish, Edge draggedEdge)
{
draggedEdge.B = finish;
finish.IncidentEdges.Add(draggedEdge);
draggedEdge.A.IncidentEdges.Add(draggedEdge);
if (EdgesAreWeighted)
{
draggedEdge.CreateWeightBlock();
mainWindow.MainCanvas.Children.Add(draggedEdge.TbWeight);
Keyboard.Focus(draggedEdge.TbWeight);
}
if (EdgesAreDirected)
{
draggedEdge.A.AdjacentNodes.Add(finish);
mainWindow.AdjacencyWindow.SetElement(draggedEdge.A, finish, "1");
}
else
{
finish.AdjacentNodes.Add(draggedEdge.A);
draggedEdge.A.AdjacentNodes.Add(finish);
mainWindow.AdjacencyWindow.SetElement(draggedEdge.A, finish, "1");
mainWindow.AdjacencyWindow.SetElement(finish, draggedEdge.A, "1");
}
draggedEdge.Update();
}
public void RemoveEdge(Edge edge)
{
Edges.Remove(edge);
edge.A.IncidentEdges.Remove(edge);
edge.B.IncidentEdges.Remove(edge);
if (EdgesAreDirected)
{
edge.A.AdjacentNodes.Remove(edge.B);
mainWindow.AdjacencyWindow.SetElement(edge.A, edge.B, "0");
}
else
{
edge.A.AdjacentNodes.Remove(edge.B);
edge.B.AdjacentNodes.Remove(edge.A);
mainWindow.AdjacencyWindow.SetElement(edge.A, edge.B, "0");
mainWindow.AdjacencyWindow.SetElement(edge.B, edge.A, "0");
}
mainWindow.MainCanvas.Children.Remove(edge.Body);
if (EdgesAreWeighted)
mainWindow.MainCanvas.Children.Remove(edge.TbWeight);
}
private async Task PrimFunc(Vertex node)
{
Vertex bestOptionVertex = node;
Parallel.For((long) 0, NumberOfVerticies, i =>
{
distance[i] = double.PositiveInfinity;
Visited[i] = false;
predecesor[i] = node;
});
distance[NodeDictionary[node]] = 0;
node.Body.Background = nodeFinalColor;
predecesor[NodeDictionary[node]] = null;
while (true)
{
var min = double.PositiveInfinity;
for (var i = 0; i < NumberOfVerticies; ++i)
{
int index = i;
var ind = NodeDictionary[MainWindow.VertexHandler.Verticies[index]];
if (!Visited[ind])
{
if(min > distance[ind])
{
min = distance[ind];
bestOptionVertex = MainWindow.VertexHandler.Verticies[index];
}
}
}
if (double.IsInfinity(min)) break;
var currInd = NodeDictionary[bestOptionVertex];
bestOptionVertex.Body.Background = nodeFinalColor;
if (!bestOptionVertex.Equals(node))
{
edge = MainWindow.EdgeHandler.GetEdgeBetween(bestOptionVertex, predecesor[currInd]);
edge.Body.Stroke = edgeFinalColor;
}
Visited[currInd] = true;
cost += distance[currInd];
foreach (var nextNode in bestOptionVertex.AdjacentNodes)
{
var weigth = MainWindow.VertexHandler.GetWeightBetween(bestOptionVertex, nextNode);
var nextInd = NodeDictionary[nextNode];
if (!Visited[nextInd])
{
if (distance[nextInd] > weigth)
{
predecesor[nextInd] = bestOptionVertex;
distance[nextInd] = weigth;
}
edge=MainWindow.EdgeHandler.GetEdgeBetween(nextNode, bestOptionVertex);
edge.Body.Stroke= edgeTempColor;
edge.Body.StrokeThickness = 3;
}
else
{
edge = MainWindow.EdgeHandler.GetEdgeBetween(nextNode, bestOptionVertex);
if (edge.Body.Stroke.Equals(edgeFinalColor)) continue;
edge.Body.Stroke = initColor;
edge.Body.StrokeThickness = 1;
}
}
if (!IsAnimationSkiping) await Task.Delay(AnimationSpeed);
}
MainWindow.MessageTextBlock.Text = cost.ToString(CultureInfo.InvariantCulture);
}