public IPositionSet ApproximateSearchKNearestNeighbor2(IPosition targetPoint, int k)
{
int levelSequence;
int BottonlevelSequence = m2mStructure.GetLevelNum() - 1;
IPart currentPart = m2mStructure.GetLevel(1).GetPartRefByPoint(targetPoint);
if (currentPart == null)
{
return(m2mStructure.GetBottonLevelPositionSetByAncestorPart(m2mStructure.GetLevel(0).GetPartRefByPoint(targetPoint), 0));
}
for (levelSequence = 2; levelSequence < BottonlevelSequence; levelSequence++)
{
ILevel currentLevel = m2mStructure.GetLevel(levelSequence);
currentPart = currentLevel.GetPartRefByPoint(targetPoint);
if ((currentPart == null) || (currentPart.GetBottomLevelPointNum() <= k))
{
return(m2mStructure.GetBottonLevelPositionSetByAncestorPart(currentPart, levelSequence));
}
}
currentPart = m2mStructure.GetLevel(BottonlevelSequence).GetPartRefByPoint(targetPoint);
return(m2mStructure.GetBottonLevelPositionSetByAncestorPart(currentPart, BottonlevelSequence));
}
private void OnGetLinePositionSetInSpecificLevel(ILevel level, int levelSequence, IPositionSet positionSet)
{
lock (layers)
{
if (linePartSetLayer == null)
{
linePartSetLayer = new Layer_M2MPartSetInSpecificLevel(level, positionSet);
linePartSetLayer.MainColor = Settings.Default.LinePositionSetInSpecificLevelColor;
linePartSetLayer.Alpha = 50;
//linePartSetLayer.LineColor = Color.Red;
linePartSetLayer.Active = true;
layers.Add(linePartSetLayer);
positionSetSet = new PositionSetSet();
BottonLevelPositionSetLayer = new Layer_PositionSet_Point(positionSetSet);
BottonLevelPositionSetLayer.Point.IsDrawPointBorder = true;
BottonLevelPositionSetLayer.Point.PointRadius = 2;
BottonLevelPositionSetLayer.Point.PointColor = Settings.Default.BottonLevelPositionSetColor;
layers.Add(BottonLevelPositionSetLayer);
}
else
{
linePartSetLayer.SpringLayerRepresentationChangedEvent(linePartSetLayer);
}
positionSetSet.Clear();
positionSet.InitToTraverseSet();
while (positionSet.NextPosition())
{
IPart tempPart = level.GetPartRefByPartIndex((int)positionSet.GetPosition().GetX(), (int)positionSet.GetPosition().GetY());
if (tempPart != null)
{
positionSetSet.AddPositionSet(m2mStructure.GetBottonLevelPositionSetByAncestorPart((
tempPart), levelSequence));
}
}
BottonLevelPositionSetLayer.SpringLayerRepresentationChangedEvent(BottonLevelPositionSetLayer);
}
flowControlerForm.BeginInvoke(Update);
flowControlerForm.SuspendAndRecordWorkerThread();
}
public IPosition GetTheNearestPointInPart()
{
IPositionSet BottonLevelPositionSet =
M2MS.GetBottonLevelPositionSetByAncestorPart(currentPart, AncestorLevelSequence);
BottonLevelPositionSet.InitToTraverseSet();
while (BottonLevelPositionSet.NextPosition())
{
CompareToThePoint(BottonLevelPositionSet.GetPosition());
}
//currentPart.OnGetOnePoint = this.CompareToThePoint;
//((Part)currentPart).OnGetOnePoint += CompareToThePoint;
//((Part)currentPart).TravelAllPointInPart();
//((Part)currentPart).OnGetOnePoint -= CompareToThePoint;
return(nearestPointToComparePoint);
}
public void TraversalEveryLevelAndBuild(IM2MStructure m2mStructure)
{
IPart rootPart = m2mStructure.GetLevel(0).GetPartRefByPartIndex(0, 0);
IPositionSet bottonLevelPositionSet = m2mStructure.GetBottonLevelPositionSetByAncestorPart(rootPart, 0);
bottonLevelPositionSet.InitToTraverseSet();
while (bottonLevelPositionSet.NextPosition())
{
((IPosition_Connected)(bottonLevelPositionSet.GetPosition())).SetAttachment(new Tag_M2M_Position());
}
//遍历每一层
for (int levelSequence = m2mStructure.GetLevelNum() - 1; levelSequence >= 0; levelSequence--)
{
Queue <PositionAndPositon> partAndPositonQueue = new Queue <PositionAndPositon>();
bool isPart = true;
ILevel currentLevel = m2mStructure.GetLevel(levelSequence);
IPositionSet currrentLevelPositionSet = null;
//如果处于最底层
if (levelSequence == m2mStructure.GetLevelNum() - 1)
{
isPart = false;
}
if (levelSequence == 0)
{
IPositionSetEdit temp = new Position_Implement.PositionSetEdit_ImplementByICollectionTemplate();
temp.AddPosition(rootPart);
currrentLevelPositionSet = temp;
}
else
{
currrentLevelPositionSet = m2mStructure.GetDescendentPositionSetByAncestorPart(levelSequence, rootPart, 0);
}
currrentLevelPositionSet.InitToTraverseSet();
//遍历每一个分块
while (currrentLevelPositionSet.NextPosition())
{
List <IPart_Connected> SubPartList = new List <IPart_Connected>();
IPart_Multi currentMultiPart = (IPart_Multi)(currrentLevelPositionSet.GetPosition());
//计算part的边界
float minSequenceX;
float maxSequenceX;
float minSequenceY;
float maxSequenceY;
if (isPart)
{
float unitNumInLength = (int)(m2mStructure.GetLevel(levelSequence + 1).GetUnitNumInHeight() / currentLevel.GetUnitNumInHeight());
minSequenceX = currentMultiPart.GetX() * unitNumInLength;
maxSequenceX = minSequenceX + unitNumInLength;
minSequenceY = currentMultiPart.GetY() * unitNumInLength;
maxSequenceY = minSequenceY + unitNumInLength;
}
else
{
minSequenceX = currentLevel.ConvertPartSequenceXToRealValue(currentMultiPart.GetX());
maxSequenceX = minSequenceX + currentLevel.GetGridWidth();
minSequenceY = currentLevel.ConvertPartSequenceYToRealValue(currentMultiPart.GetY());
maxSequenceY = minSequenceY + currentLevel.GetGridHeight();
}
IPositionSet childPositionSetOfCurrentPart = m2mStructure.GetChildPositionSetByParentPart(levelSequence, currentMultiPart);
childPositionSetOfCurrentPart.InitToTraverseSet();
//遍历每一个子分块或点
while (childPositionSetOfCurrentPart.NextPosition())
{
if (isPart)
{
IPart_Multi childPartMulti = (IPart_Multi)childPositionSetOfCurrentPart.GetPosition();
foreach (IPosition_Connected currentPosition_Connected in childPartMulti.GetSubPartSet())
{
BFSInOnePoint(partAndPositonQueue, isPart, SubPartList, currentMultiPart, minSequenceX, maxSequenceX, minSequenceY, maxSequenceY, currentPosition_Connected);
}
}
else
{
IPosition_Connected currentPosition_Connected = (IPosition_Connected)childPositionSetOfCurrentPart.GetPosition();
BFSInOnePoint(partAndPositonQueue, isPart, SubPartList, currentMultiPart, minSequenceX, maxSequenceX, minSequenceY, maxSequenceY, currentPosition_Connected);
}
}
//遍历每一个子分块结束
currentMultiPart.SetSubPartSet(SubPartList);
}
//遍历完某层的每个分块
//处理还没建立链接的点和分块对
foreach (PositionAndPositon pap in partAndPositonQueue)
{
IPosition_Connected position_Connected = pap.position;
IPart_Connected currentParentPart = GetParentPart(position_Connected, isPart);
IPart_Connected currentParentPart2 = GetParentPart(pap.positionInExistPart, isPart);
float distance = CalculateTheDistanceBetweenTwoPosition(currentParentPart2, currentParentPart);
IPositionSet_Connected_AdjacencyEdit positionSet_Connected_Adjacency = currentParentPart2.GetAdjacencyPositionSetEdit();
bool isContain = false;
positionSet_Connected_Adjacency.InitToTraverseSet();
while (positionSet_Connected_Adjacency.NextPosition())
{
if (positionSet_Connected_Adjacency.GetPosition() == currentParentPart)
{
isContain = true;
break;
}
}
if (isContain)
{
continue;
}
else
{
positionSet_Connected_Adjacency.AddAdjacency(currentParentPart, distance);
}
positionSet_Connected_Adjacency = currentParentPart.GetAdjacencyPositionSetEdit();
isContain = false;
positionSet_Connected_Adjacency.InitToTraverseSet();
while (positionSet_Connected_Adjacency.NextPosition())
{
if (positionSet_Connected_Adjacency.GetPosition() == currentParentPart2)
{
isContain = true;
break;
}
}
if (isContain)
{
continue;
}
else
{
positionSet_Connected_Adjacency.AddAdjacency(currentParentPart2, distance);
}
}
#region code for algorithm demo
if (GetPartSetInSpecificLevel != null)
{
GetPartSetInSpecificLevel(m2mStructure.GetLevel(levelSequence), levelSequence, m2mStructure.GetDescendentPositionSetByAncestorPart(levelSequence, rootPart, 0));
}
#endregion
}
//遍历每一层结束
}
public override void Draw(Graphics graphics)
{
if (Visible)
{
SetDrawerGraphic(graphics);
List <IPosition_Connected> PartMiddlePointList = new List <IPosition_Connected>();
List <PointF[]> PointArrayList = new List <PointF[]>();
ILevel level = m2mStructure.GetLevel(levelSequence);
IPart rootPart = m2mStructure.GetLevel(0).GetPartRefByPartIndex(0, 0);
IPositionSet positionSet = m2mStructure.GetDescendentPositionSetByAncestorPart(levelSequence, rootPart, 0);
Dictionary <IPosition, IPosition_Connected_Edit> partToPositionDictionary = new Dictionary <IPosition, IPosition_Connected_Edit>();
positionSet.InitToTraverseSet();
while (positionSet.NextPosition())
{
Position_Connected_Edit PartDeputyPosition_Connected = new Position_Connected_Edit();
partToPositionDictionary.Add(positionSet.GetPosition(), PartDeputyPosition_Connected);
}
positionSet.InitToTraverseSet();
while (positionSet.NextPosition())
{
IPart_Connected currentPart = (IPart_Connected)positionSet.GetPosition();
IPositionSet bottomLevelPositionSet = m2mStructure.GetBottonLevelPositionSetByAncestorPart(currentPart, levelSequence);
IPosition tempPoint = PositionSetAttribute.GetGravityCenter(bottomLevelPositionSet);
IPosition_Connected_Edit PartDeputyPosition_Connected;
partToPositionDictionary.TryGetValue(positionSet.GetPosition(), out PartDeputyPosition_Connected);
PartDeputyPosition_Connected.SetX(tempPoint.GetX());
PartDeputyPosition_Connected.SetY(tempPoint.GetY());
currentPart.GetAdjacencyPositionSet().InitToTraverseSet();
while (currentPart.GetAdjacencyPositionSet().NextPosition())
{
IPosition_Connected_Edit adjDeputy;
partToPositionDictionary.TryGetValue(currentPart.GetAdjacencyPositionSet().GetPosition(), out adjDeputy);
PartDeputyPosition_Connected.GetAdjacencyPositionSetEdit().AddAdjacency(
adjDeputy, currentPart.GetAdjacencyPositionSet().GetDistanceToAdjacency());
}
PartMiddlePointList.Add(PartDeputyPosition_Connected);
IPositionSet ConvexHullPointSet = null;
if (bottomLevelPositionSet.GetNum() > 1)
{
ConvexHullPointSet = new QuickHull().ConvexHull(bottomLevelPositionSet);
}
else
{
ConvexHullPointSet = bottomLevelPositionSet;
}
PointF[] tempArray = new PointF[ConvexHullPointSet.GetNum()];
int sequence = 0;
ConvexHullPointSet.InitToTraverseSet();
while (ConvexHullPointSet.NextPosition())
{
tempArray[sequence].X = ConvertRealXToScreenX(ConvexHullPointSet.GetPosition().GetX());
tempArray[sequence].Y = ConvertRealYToScreenY(ConvexHullPointSet.GetPosition().GetY());
sequence++;
}
PointArrayList.Add(tempArray);
}
Pen pen = new Pen(partColor, partBorderWidth);
Brush brush = new SolidBrush(Color.FromArgb(alpha, partColor));
foreach (PointF[] pointArray in PointArrayList)
{
if (pointArray.Length >= 2)
{
graphics.DrawPolygon(pen, pointArray);
graphics.FillPolygon(brush, pointArray);
}
}
this.positionSet = new PositionSet_ConnectedEdit(PartMiddlePointList);
positionSetDrawerPump.ResetPump();
positionSetDrawerPump.DrawCoordinate(pointCoordinateDrawer);
positionSetDrawerPump.DrawPoint(pointDrawer);
positionSetDrawerPump.DrawConnection(connectionDrawer);
positionSetDrawerPump.Run();
}
}