protected void CheckRange(int xleft, int xright, int y, int z, ParentDirections ptype)
{
for (int i = xleft; i <= xright;)
{
if ((!flagsMap.GetFlagOn(i, y, z)) && IncludePredicate(i, y, z))
{
int lb = i;
int rb = i + 1;
while (rb <= xright && (!flagsMap.GetFlagOn(rb, y, z)) && IncludePredicate(rb, y, z))
{
rb++;
}
rb--;
Span span = new Span();
span.XLeft = lb;
span.XRight = rb;
span.Y = y;
span.Z = z;
if (lb == xleft && rb == xright)
{
span.Extended = ExtendTypes.UnRez;
}
else if (rb == xright)
{
span.Extended = ExtendTypes.RightRequired;
}
else if (lb == xleft)
{
span.Extended = ExtendTypes.LeftRequired;
}
else
{
span.Extended = ExtendTypes.AllRez;
}
span.ParentDirection = ptype;
for (int j = lb; j <= rb; j++)
{
flagsMap.SetFlagOn(j, y, z, true);
Process(new Int16Triple(j, y, z));
}
container.Push(span);
i = rb + 1;
}
else
{
i++;
}
}
}//区段法的CheckRange 注意与扫描线的CheckRange的不同
protected virtual void ExcuteFloodFill(BitMap3d data, Int16Triple seed)
{
this.bmp = data;
data.ResetVisitCount();
flagsMap = new FlagMap3d(data.width, data.height, data.depth);
Int16Triple[] adjPoints6 = new Int16Triple[6];
flagsMap.SetFlagOn(seed.X, seed.Y, seed.Z, true);
container.Push(seed);
Process(seed);
while (!container.Empty())
{
Int16Triple p = container.Pop();
InitAdj6(ref adjPoints6, ref p);
for (int adjIndex = 0; adjIndex < 6; adjIndex++)
{
Int16Triple t = adjPoints6[adjIndex];
if (t.X < data.width && t.X >= 0 && t.Y < data.height && t.Y >= 0 && t.Z < data.depth && t.Z >= 0)
{
if (!flagsMap.GetFlagOn(t.X, t.Y, t.Z) && IncludePredicate(t))
{
flagsMap.SetFlagOn(t.X, t.Y, t.Z, true);
container.Push(t);
Process(t);
}
}
}
}
return;
}
}//该函数为扫描线法主体
protected void CheckRange(int xleft, int xright, int y, int z)
{
for (int i = xleft; i <= xright;)
{
if ((!flagsMap.GetFlagOn(i, y, z)) && IncludePredicate(i, y, z))
{
int rb = i + 1;
while (rb <= xright && (!flagsMap.GetFlagOn(rb, y, z)) && IncludePredicate(rb, y, z))
{
rb++;
}
rb--;
Int16Triple t = new Int16Triple(rb, y, z);
flagsMap.SetFlagOn(rb, y, z, true);
container.Push(t);
Process(t);
i = rb + 1;
}
else
{
i++;
}
}
}//CheckRange操作
private void ProcessXSeeds(SpanFillInput input)
{
for (int k = 0; k < 2; k++)
{
List <Int16Triple> list = input.overstepPointList[k];
for (int i = 0; i < list.Count; i++)
{
Int16Triple p = list[i];
if (!flagsMap.GetFlagOn(p.X, p.Y, p.Z) && IncludeConditionMeets(p.X, p.Y, p.Z))
{
Process(p);
flagsMap.SetFlagOn(p.X, p.Y, p.Z, true);
Span span = new Span();
span.XLeft = p.X;
span.XRight = p.X;
span.Y = p.Y;
span.Z = p.Z;
span.ParentDirection = ParentDirections.Non;
span.Extended = ExtendTypes.UnRez;
container.Push(span);
}
}
}
}
public FloodFillResult ExecuteSeededGrow(FloodFillInput input)
{
queue.Clear();
//result.Clear();
resultCount = 0;
this.width = input.width;
this.height = input.height;
this.depth = input.depth;
this.flagsMap = input.flag;
this.data = input.data;
List <Int16Triple> oversteps = input.overstepList;
FloodFillResult ret = new FloodFillResult();
ret.Init();
Int16Triple[] adjPoints6 = new Int16Triple[6];
if (!input.IsFirst)
{
for (int i = 0; i < oversteps.Count; i++)
{
if (!flagsMap.GetFlagOn(oversteps[i].X, oversteps[i].Y, oversteps[i].Z) && IncludeConditionMeets(oversteps[i]))
{
flagsMap.SetFlagOn(oversteps[i].X, oversteps[i].Y, oversteps[i].Z, true);
Process(oversteps[i]);
InitAdj6(adjPoints6, oversteps[i]);
for (int adjIndex = 0; adjIndex < 6; adjIndex++)
{
Int16Triple t = adjPoints6[adjIndex];
if (t.X < width && t.X >= 0 && t.Y < height && t.Y >= 0 && t.Z < depth && t.Z >= 0)
{
int indext = t.X + width * t.Y + width * height * t.Z;
if (!flagsMap.GetFlagOn(t.X, t.Y, t.Z) && IncludeConditionMeets(t))
{
flagsMap.SetFlagOn(t.X, t.Y, t.Z, true);
queue.Push(t);
Process(t);
}
}
}
}//首次生长需要避免让越界种子点又重新回溯到原先的层
}
}
else
{
//以下是第一次生长的时候种子点不需要担心回溯
if (oversteps.Count != 1)
{
throw new Exception();
}
for (int i = 0; i < oversteps.Count; i++)
{
if (!flagsMap.GetFlagOn(oversteps[i].X, oversteps[i].Y, oversteps[i].Z) && IncludeConditionMeets(oversteps[i]))
{
flagsMap.SetFlagOn(oversteps[i].X, oversteps[i].Y, oversteps[i].Z, true);
queue.Push(oversteps[i]);
Process(oversteps[i]);
}
}
}
while (!queue.Empty())
{
Int16Triple p = queue.Pop();
InitAdj6(adjPoints6, p);
for (int adjIndex = 0; adjIndex < 6; adjIndex++)
{
Int16Triple t = adjPoints6[adjIndex];
if (t.X < width && t.X >= 0 && t.Y < height && t.Y >= 0 && t.Z < depth && t.Z >= 0)
{
int indext = t.X + width * t.Y + width * height * t.Z;
if (!flagsMap.GetFlagOn(t.X, t.Y, t.Z) && IncludeConditionMeets(t))
{
flagsMap.SetFlagOn(t.X, t.Y, t.Z, true);
queue.Push(t);
Process(t);
}
}
else
{
if (input.recordLower && t.Z < 0)
{
if (t.Z != -1)
{
throw new Exception();
}
ret.boundaryRequestPoints[0].Add(t);
continue;
}
if (input.recordUpper && t.Z >= depth)
{
if (t.Z > depth)
{
throw new Exception();
}
ret.boundaryRequestPoints[1].Add(t);
continue;
}
}
}
}
//ret.resultPointSet = this.result;
ret.resultCount = this.resultCount;
return(ret);
}
public void ExecuteSeededGrow(FloodFillInput input, FloodFillResult ret)
{
queue.Clear();
result = ret;
this.width = input.width;
this.height = input.height;
this.depth = input.depth;
this.data = input.data;
if (input.flagsMap != null)
{
this.flagsMap = input.flagsMap;
}
else
{
this.flagsMap = new FlagMap3d(input.width, input.height, input.depth);
}
Int16Triple[] adjPoints6 = new Int16Triple[6];
if (!input.GetIsFirst())
{
List <Int16Triple>[] oversteps = input.overstepList;
for (int j = 0; j < 6; j++)
{
for (int i = 0; i < oversteps[j].Count; i++)
{
Int16Triple p = oversteps[j][i];
if (!flagsMap.GetFlagOn(p.X, p.Y, p.Z) && IncludeConditionMeets(p))
{
flagsMap.SetFlagOn(p.X, p.Y, p.Z, true);
Process(p);
queue.Push(new Int16TripleWithDirection(p, j));
}
}
}
}
else
{
Int16Triple seed = input.seed;
flagsMap.SetFlagOn(seed.X, seed.Y, seed.Z, true);
queue.Push(new Int16TripleWithDirection(seed, 6));
Process(seed);
}
while (!queue.Empty())
{
Int16TripleWithDirection p = queue.Pop();
InitAdj6(adjPoints6, p.Poistion);
for (int adjIndex = 0; adjIndex < 6; adjIndex++)
{
if (adjIndex == p.PDirection)
{
continue;
}
Int16Triple t = adjPoints6[adjIndex];
if (t.X < width && t.X >= 0 && t.Y < height && t.Y >= 0 && t.Z < depth && t.Z >= 0)
{
int indext = t.X + width * t.Y + width * height * t.Z;
if (!flagsMap.GetFlagOn(t.X, t.Y, t.Z) && IncludeConditionMeets(t))
{
flagsMap.SetFlagOn(t.X, t.Y, t.Z, true);
queue.Push(new Int16TripleWithDirection(t, OppositePos[adjIndex]));
Process(t);
}
}
else
{
if (input.GetCanSeekAdj(adjIndex))
{
result.boundaryRequestPoints[adjIndex].Add(t);
}
}
}
}
}
