void Init()
{
if (this.Data == null)
{
return;
}
Len = Data.Count;
BegT = Data[0].Date;
MACDDataItem LastItem = Data[Len - 1 < 0?0:(Len - 1)];
EndT = LastItem.Date;
UpDir = false;
for (int i = 0; i < Len; i++)//初始化该区初始方向
{
decimal vMacd = Data[Len - i].MACD;
if (vMacd == 0)
{
continue;
}
UpDir = vMacd > 0;
break;
}
Summ = Data.MACDs.Sum();
MaxinMACD = UpDir ? Data.MACDs.Max() : Data.MACDs.Min();
MaxinPrice = UpDir ? Data.Highs.Max() : Data.Lows.Min();
MaxinClose = UpDir ? Data.Closes.Max() : Data.Closes.Min();
MaxinOCPrice = UpDir ? Math.Max(Data.Opens.Max(), Data.Closes.Max()) : Math.Min(Data.Opens.Min(), Data.Closes.Min());
}
public new MACDDataItem this[int rowid]
{
get
{
MACDDataItem item = new MACDDataItem(this.Table.Rows[rowid]);
item.RowId = rowid;
return(item);
}
}
public List <MACDAreaClass> SplitSubMACDAreas()
{
var Arr = from n in Data.ItemList
orderby n.RowId
select n;
List <MACDAreaClass> ret = new List <MACDAreaClass>();
MACDDataItem firstObj = Arr.First <MACDDataItem>();
firstObj.Color = firstObj.MACD > 0 ? MACDColor.Red : MACDColor.Green;
firstObj.IsAreaStart = true;
MACDDataItem endObj = Arr.Last <MACDDataItem>();
endObj.Color = endObj.MACD > 0 ? MACDColor.Red : MACDColor.Green;
endObj.IsAreaEnd = true;
for (int i = 1; i < Len - 1; i++)
{
MACDDataItem CurrObj = Arr.ElementAt <MACDDataItem>(i);
MACDDataItem NextObj = Arr.ElementAt <MACDDataItem>(i + 1);
MACDDataItem PreObj = Arr.ElementAt <MACDDataItem>(i - 1);
if (CurrObj.MACD > 0 && PreObj.MACD <= 0) //MACD上穿0线
{
CurrObj.Color = MACDColor.Red;
CurrObj.IsAreaStart = true;
PreObj.Color = MACDColor.Green;
PreObj.IsAreaEnd = true;
continue;
}
if (CurrObj.MACD < 0 && PreObj.MACD >= 0) //MACD下穿0线
{
CurrObj.Color = MACDColor.Green;
CurrObj.IsAreaStart = true;
PreObj.Color = MACDColor.Red;
PreObj.IsAreaEnd = true;
continue;
}
}
var KeyArr = from n in Arr
where n.Color != MACDColor.None
select n; //上下穿切换点
int KeyCnt = KeyArr.Count <MACDDataItem>();
var startArr = from Item in KeyArr
let begDate = Item.Date
let endDate = 0
where Item.IsAreaStart = false
select new { Item, begDate };
var endArr = from n in startArr
let Item = n.Item
let begDate = n.begDate
let endDate = n.Item.Date
where n.Item.IsAreaEnd = false
select new { Item, begDate, endDate };
int Keyindex = -1;
bool Skip = false;
foreach (var key in endArr)
{
Keyindex++;
if (Skip)
{
Skip = false;
continue;
}
var subAreaArr = from n in Arr
where n.Date >= key.begDate
where n.Date <= key.endDate
select n;
MACDAreaClass subObj = new MACDAreaClass(new MACDTable(subAreaArr as List <MACDDataItem>));
//subObj.UpDir = subAreaArr.First<MACDDataItem>().Color == MACDColor.Red;
if (subObj.Len < 3)
{
if (Keyindex > 0 && Keyindex < KeyCnt - 1)
{
var UnionArea = from n in Arr
where n.Date >= ret[ret.Count - 1].BegT && n.Date <= key.endDate
select n;
MACDAreaClass unionAreaObj = new MACDAreaClass(new MACDTable(UnionArea as List <MACDDataItem>));
ret[ret.Count - 1] = unionAreaObj;
Skip = true;
continue;
}
}
ret.Add(subObj);
}
List <MACDAreaClass> lastRes = new List <MACDAreaClass>();
if (ret.Count > 0)
{
lastRes.Add(ret[0]);
}
int cnt = 0;
for (int i = 1; i < ret.Count; i++)
{
if (ret[i].UpDir == ret[cnt].UpDir)//方向相同，合并
{
lastRes[lastRes.Count] = this.MergeArea(lastRes[lastRes.Count - 1], ret[i]);
}
else
{
cnt++;
lastRes.Add(ret[i]);
}
}
return(lastRes);
}