private PlotCollection getLowPoints(PlotCollection data, int nLevel, int nLookahead)
{
if (data == null || data.Count < 3)
{
return(null);
}
PlotCollection dataLow = new PlotCollection(data.Name + " L" + nLevel.ToString());
int nOpen = data[0].PrimaryIndexY;
int nHigh = data[0].PrimaryIndexY;
int nLow = data[0].PrimaryIndexY;
int nClose = data[0].PrimaryIndexY;
if (data[0].Y_values.Length == 4)
{
nHigh = 1;
nLow = 2;
nClose = 3;
}
List <Tuple <int, Plot> > rgActive = new List <Tuple <int, Plot> >();
for (int i = 0; i < data.Count - nLookahead; i++)
{
if (data[i].Active)
{
rgActive.Add(new Tuple <int, Plot>(i, data[i]));
}
}
if (rgActive.Count < 3)
{
return(null);
}
MinMax minmax = new MinMax();
int nIdx = 1;
for (int i = 0; i < data.Count; i++)
{
int nIdxCurrent = rgActive[nIdx].Item1;
if (i == nIdxCurrent && nIdx < rgActive.Count - 1)
{
Plot plotCurrent = data[nIdxCurrent];
int nIdxPast = rgActive[nIdx - 1].Item1;
Plot plotPast = data[nIdxPast];
int nIdxFuture = rgActive[nIdx + 1].Item1;
Plot plotFuture = data[nIdxFuture];
double dfOpen = (plotCurrent.Y_values.Length == 1) ? plotCurrent.Y : plotCurrent.Y_values[nOpen];
double dfClose = (plotCurrent.Y_values.Length == 1) ? plotCurrent.Y : plotCurrent.Y_values[nClose];
double dfHigh1 = (plotCurrent.Y_values.Length == 1) ? plotCurrent.Y : plotCurrent.Y_values[nHigh];
double dfLow1 = (plotCurrent.Y_values.Length == 1) ? plotCurrent.Y : plotCurrent.Y_values[nLow];
double dfHigh0 = (plotPast.Y_values.Length == 1) ? plotPast.Y : plotPast.Y_values[nHigh];
double dfLow0 = (plotPast.Y_values.Length == 1) ? plotPast.Y : plotPast.Y_values[nLow];
double dfHigh2 = (plotFuture.Y_values.Length == 1) ? plotFuture.Y : plotFuture.Y_values[nHigh];
double dfLow2 = (plotFuture.Y_values.Length == 1) ? plotFuture.Y : plotFuture.Y_values[nLow];
bool bLow = false;
if (dfLow1 < dfLow0 && dfLow1 < dfLow2)
{
bLow = true;
}
minmax.Add(dfLow1);
dataLow.Add(new Plot(data[nIdxCurrent].X, dfLow1, null, bLow, data[nIdxCurrent].Index));
nIdx++;
}
else
{
double dfLow = (data[i].Y_values.Length == 1) ? data[i].Y : data[i].Y_values[nLow];
dataLow.Add(new Plot(data[i].X, dfLow, null, false, data[i].Index));
}
}
dataLow.SetMinMax(minmax);
return(dataLow);
}