protected string SearchForPath(ISearchPathEngine searchEngine, bool countTimeEnable)
{
start = map.GetStartPosition();
end = map.GetEndPosition();
searchPathEngine = searchEngine;
if (start != null && end != null)
{
searchEngine.InitEngineForMap(map.GetPositionSet_Connected());
path = searchEngine.SearchPath(start, end);
if (path != null)
{
double length = 0, dx, dy;
for (int i = 1; i < path.Count; i++)
{
dx = path[i].GetX() - path[i - 1].GetX();
dy = path[i].GetY() - path[i - 1].GetY();
length += Math.Sqrt(dx * dx + dy * dy);
}
if (countTimeEnable)
{
return(string.Format("Time:{0} milliseconds.\nPath length:{1}", timeCounter.CountTimeForRepeatableMethod(SearchForPath_countTime), length));
}
else
{
return(string.Format("Path length:{1}", length));
}
}
}
return("There is not any path between the start point and the end point!");
}
protected void performTest(ISearchPathEngine searchEngine)
{
List <IPosition_Connected> newPath;
for (int i = 0; i < path.Count; i++)
{
searchEngine.InitEngineForMap(set[i]);
newPath = searchEngine.SearchPath(start[i], end[i]);
Console.WriteLine("There are " + newPath.Count.ToString() + " nodes in the path.");
foreach (IPosition_Connected p in newPath)
{
Console.WriteLine(p.ToString() + "\t" + p.GetAttachment().ToString());
}
Assert.AreEqual(newPath.Count, path[i].Count);
for (int j = 0; j < newPath.Count; j++)
{
Assert.AreEqual(com.Compare(newPath[j], path[i][j]), 0);
}
}
}
private void pathFindingToolStripMenuItem_Click(object sender, EventArgs e)
{
IPositionSet_Connected positionSet_Connected = (IPositionSet_Connected)positionSetContainer.GetPositionSet();
Dijkstra dijkstra = new Dijkstra();
AStar astar = new AStar();
M2M_PF m2m_PF = new M2M_PF();
IM2MStructure m2mStructure = null;
List <IPosition_Connected> m2mPath = null;
List <IPosition_Connected> path = null;
//计算算法运行时间用
//IPosition_Connected start = null;
//IPosition_Connected end = null;
ISearchPathEngine searchPathEngine1 = m2m_PF;
ISearchPathEngine searchPathEngine2 = dijkstra;
m2m_PF.GetM2MStructure += delegate(IM2MStructure m2mS) { m2mStructure = m2mS; };
m2m_PF.GetM2MStructureInPreprocess += delegate(IM2MStructure m2mS) { m2mStructure = m2mS; };
List <ushort> timeStampList = new List <ushort>();
m2m_PF.GetTimeStamp += delegate(ushort timeStamp) { timeStampList.Add(timeStamp); };
searchPathEngine1.InitEngineForMap(positionSet_Connected);
searchPathEngine2.InitEngineForMap(positionSet_Connected);
//以下代码必须在UI线程中调用，即不能在另开的线程中调用
LayersExOptDlg layers = new LayersExOptDlg();
LayersPainterForm layersPainterForm = new LayersPainterForm(layers);
LayersPaintedControl layersPaintedControl = layersPainterForm.LayersPaintedControl;
LayersEditedControl layersEditedControl = new LayersEditedControl();
layersEditedControl.Dock = DockStyle.Top;
layersEditedControl.LayersPaintedControl = layersPaintedControl;
layersPainterForm.Controls.Add(layersEditedControl);
layersPainterForm.Show();
//打开一个Worker线程来进行算法流程的演示（否则会阻塞UI线程以至于演示不能进行）
IAsyncResult result = new dDemoProcess(delegate
{
Layer_PositionSet_Connected layer_PositionSet_Connected = new Layer_PositionSet_Connected(positionSet_Connected);
layer_PositionSet_Connected.Point.PointColor = Color.Yellow;
layer_PositionSet_Connected.Connection.LineColor = Color.Blue;
layer_PositionSet_Connected.Connection.LineWidth = 0.6f;
layer_PositionSet_Connected.Point.PointRadius = 1.2f;
layers.Add(layer_PositionSet_Connected);
layer_PositionSet_Connected.SpringLayerRepresentationChangedEvent(layer_PositionSet_Connected);
for (int levelSequence = 1; levelSequence < m2mStructure.GetLevelNum(); levelSequence++)
{
Layer_PartSet_Connected layer_PartSet_Connected = new Layer_PartSet_Connected(m2mStructure, levelSequence);
layer_PartSet_Connected.Visible = false;
layers.Add(layer_PartSet_Connected);
}
while (true)
{
IPosition_Connected start = (IPosition_Connected)layersEditedControl.GetMouseDoubleChickedNearestPositionInCurrentPositionSet(positionSet_Connected);
PositionSet_ConnectedEdit startPointSet = new PositionSet_ConnectedEdit();
startPointSet.AddPosition_Connected(start);
Layer_PositionSet_Point layerStartPoint = new Layer_PositionSet_Point(startPointSet);
layerStartPoint.Active = true;
layerStartPoint.Point.IsDrawPointBorder = true;
layerStartPoint.Point.PointRadius = 5;
layerStartPoint.Point.PointColor = Color.PaleGreen;
layers.Add(layerStartPoint);
layerStartPoint.SpringLayerRepresentationChangedEvent(layerStartPoint);
IPosition_Connected end = (IPosition_Connected)layersEditedControl.GetMouseDoubleChickedNearestPositionInCurrentPositionSet(positionSet_Connected);
PositionSet_ConnectedEdit endPointSet = new PositionSet_ConnectedEdit();
endPointSet.AddPosition_Connected(end);
Layer_PositionSet_Point layerEndPoint = new Layer_PositionSet_Point(endPointSet);
layerEndPoint.Active = true;
layerEndPoint.Point.IsDrawPointBorder = true;
layerEndPoint.Point.PointRadius = 5;
layerEndPoint.Point.PointColor = Color.Cyan;
layers.Add(layerEndPoint);
layerEndPoint.SpringLayerRepresentationChangedEvent(layerEndPoint);
CountTimeTool.TimeCounter timeCounter = new CountTimeTool.TimeCounter();
searchPathEngine2.InitEngineForMap(positionSet_Connected);
double time2 = timeCounter.CountTimeForRepeatableMethod(delegate { searchPathEngine2.SearchPath(start, end); });
path = searchPathEngine2.SearchPath(start, end);
float pathLength2 = ((Dijkstra)searchPathEngine2).GetPathLength();
Console.WriteLine("Dijkstra consume time: " + time2 + " path Length = " + pathLength2);
searchPathEngine1.InitEngineForMap(positionSet_Connected);
//清空timeStampList以记录寻径过程各层的timeStamp
double time1 = timeCounter.CountTimeForRepeatableMethod(delegate { searchPathEngine1.SearchPath(start, end); });
timeStampList.Clear();
m2mPath = searchPathEngine1.SearchPath(start, end);
float pathLength1 = ((M2M_PF)searchPathEngine1).GetPathLength();
Console.WriteLine("M2M_PF consume time: " + time1 + " path Length = " + pathLength1);
//searchPathEngine1.SearchPath(start, end);
if (searchPathEngine1 is M2M_PF && m2mStructure != null)
{
for (int levelSequence = 1; levelSequence < m2mStructure.GetLevelNum(); levelSequence++)
{
ILevel level = m2mStructure.GetLevel(levelSequence);
IPart rootPart = m2mStructure.GetLevel(0).GetPartRefByPartIndex(0, 0);
IPositionSet positionSet = m2mStructure.GetDescendentPositionSetByAncestorPart(levelSequence, rootPart, 0);
List <IPosition_Connected> position_ConnectedList = new List <IPosition_Connected>();
positionSet.InitToTraverseSet();
while (positionSet.NextPosition())
{
if (positionSet.GetPosition() is IPart_Multi)
{
IPart_Multi partMulti = (IPart_Multi)positionSet.GetPosition();
IEnumerable <IPart_Connected> part_ConnectedEnumerable = partMulti.GetSubPartSet();
foreach (IPart_Connected part in part_ConnectedEnumerable)
{
IPosition_Connected tempPartConnected = (IPosition_Connected)part;
if (((Tag_M2M_Part)tempPartConnected.GetAttachment()).isNeedToSearch == true)
{
if (timeStampList[levelSequence - 1] == ((Tag_M2M_Part)tempPartConnected.GetAttachment()).timeStamp)
{
position_ConnectedList.Add(tempPartConnected);
}
}
}
}
else
{
IPosition_Connected tempPartConnected = (IPosition_Connected)positionSet.GetPosition();
if (((Tag_M2M_Part)tempPartConnected.GetAttachment()).isNeedToSearch == true)
{
if (timeStampList[levelSequence - 1] == ((Tag_M2M_Part)tempPartConnected.GetAttachment()).timeStamp)
{
position_ConnectedList.Add(tempPartConnected);
}
}
}
}
IPositionSet partSet = new PositionSet_Connected(position_ConnectedList);
Layer_M2MPartSetInSpecificLevel layer_M2MPartSetInSpecificLevel = new Layer_M2MPartSetInSpecificLevel(m2mStructure.GetLevel(levelSequence), partSet);
layer_M2MPartSetInSpecificLevel.Active = true;
layer_M2MPartSetInSpecificLevel.Alpha = 100;
//layer_M2MPartSetInSpecificLevel.
layers.Add(layer_M2MPartSetInSpecificLevel);
//PositionSet_Connected partSet_Connected = new PositionSet_Connected(position_ConnectedList);
//Layer_PositionSet_Connected layer_PartSet_Connected = new Layer_PositionSet_Connected(partSet_Connected);
////layer_PartSet_Connected.MainColor
////layer_PartSet_Connected.Active = true;
//layer_PartSet_Connected.SetPositionSetTransformByM2MLevel(level);
//layers.Add(layer_PartSet_Connected);
}
}
if (path != null)
{
Layer_PositionSet_Path layer = new Layer_PositionSet_Path(new PositionSet_Connected(path));
layer.Active = true;
layer.PathLine.LineColor = Color.Black;
layer.PathLine.LineWidth = 2;
layer.PathPoint.PointRadius = 2;
layer.PathPoint.IsDrawPointBorder = true;
//layer.EditAble = true;
//layer.Point.PointColor = Color.Yellow;
//layer.Point.PointRadius = 2;
//layer.Point.IsDrawPointBorder = true;
layers.Add(layer);
layer.SpringLayerRepresentationChangedEvent(layer);
}
else
{
this.BeginInvoke(new dShow(MessageBox.Show), new object[] { "There is no path between two node" });
}
if (m2mPath != null)
{
Layer_PositionSet_Path layer = new Layer_PositionSet_Path(new PositionSet_Connected(m2mPath));
layer.Active = true;
layer.PathLine.LineColor = Color.Red;
layer.PathLine.LineWidth = 2;
layer.PathPoint.PointRadius = 2;
layer.PathPoint.IsDrawPointBorder = true;
//layer.EditAble = true;
//layer.Point.PointColor = Color.Yellow;
//layer.Point.PointRadius = 2;
//layer.Point.IsDrawPointBorder = true;
layers.Add(layer);
layer.SpringLayerRepresentationChangedEvent(layer);
}
else
{
this.BeginInvoke(new dShow(MessageBox.Show), new object[] { "There is no path between two node by M2M_PF" });
}
}
}).BeginInvoke(null, null);
}