public void BuildSeries(ChartControl chart)
{
seriesRSI.Data.Clear();
seriesBound.data.Clear();
// границы
var reg = new BarRegion {
Color = Color.Black, UpperBound = 100 - marginPercent, LowerBound = marginPercent
};
seriesBound.data.Add(reg);
// RSI
for (var i = 0; i < Period; i++)
{
seriesRSI.Data.Add(50);
}
var dataCount = GetSourceDataCount();
for (var i = Period; i < dataCount; i++)
{
double sumU = 0, sumD = 0;
for (var j = 0; j < Period; j++)
{
var delta = GetSourcePrice(i - j)
- GetSourcePrice(i - j - 1);
if (delta < 0)
{
sumD -= delta;
}
else
{
sumU += delta;
}
}
double RSI;
if (sumU == sumD && sumU == 0)
{
RSI = 50;
}
else if (sumD == 0)
{
RSI = 100;
}
else
{
RSI = 100 - 100.0 / (1 + sumU / sumD);
}
seriesRSI.Data.Add(RSI);
}
}
private void AddDivergenceRegion(int endIndex, int sign)
{
var reg = new BarRegion
{
IndexStart = endIndex,
IndexEnd = endIndex + 1,
Color = sign < 0 ? ColorArrowDown : ColorArrowUp
};
// найти цены
var seriesSrc = SeriesSources[0];
if (seriesSrc is StockSeries)
{
var candle = ((StockSeries)seriesSrc).Data.Candles[endIndex];
reg.UpperBound = Math.Max(candle.open, candle.close);
reg.LowerBound = Math.Min(candle.open, candle.close);
}
seriesRegion.data.Add(reg);
}