Steema Central

Code: Select all

  public class SquareSum : Steema.TeeChart.Functions.Function
  {
    public SquareSum() : base() { }
    public SquareSum(Steema.TeeChart.Chart c) : base(c) { }

    public override double Calculate(Series SourceSeries, int FirstIndex, int LastIndex)
    {
      ValueList v = ValueList(SourceSeries);
      if (FirstIndex == -1) return v.Total;
      else
      {
        double result = 0;
        for (int t = FirstIndex; t <= LastIndex; t++)
          result += Math.Sqrt(v[t]);
        return result;
      }
    }

    public override string Description()
    {
      return "Custom SquareSum";
    }

    public override double CalculateMany(ArrayList SourceSeriesList, int ValueIndex)
    {
      ValueList v;
      double result = 0;

      for (int t = 0; t < SourceSeriesList.Count; t++)
      {
        v = ValueList((Series)SourceSeriesList[t]);
        if (v.Count > ValueIndex)
          result += Math.Sqrt(v[ValueIndex]);
      }

      return result;
    }
  }

Code: Select all

    Line series1, series2;
    private void InitializeChart()
    {
      tChart1.Aspect.View3D = false;
      series1 = new Line(tChart1.Chart);
      series2 = new Line(tChart1.Chart);

      series1.FillSampleValues();

      series2.VertAxis = VerticalAxis.Right;
      series2.Function = new SquareSum(tChart1.Chart);
      series2.DataSource = series1;

      Utils.RegisterFunction(typeof(SquareSum), 0);
    }