Пример #1
0
        /// <summary>
        /// Action to be executd for calculating indicator
        /// </summary>
        /// <returns>for future usage. Must be ignored at this time.</returns>
        protected override bool TrueAction()
        {
// Validate
            int size = _chartPanel._chartX.RecordCount;

            if (size == 0)
            {
                return(false);
            }

            int paramInt1 = ParamInt(1);

            if (paramInt1 < 1 || paramInt1 > size / 2)
            {
                ProcessError("Invalid Periods for indicator " + FullName, IndicatorErrorType.ShowErrorMessage);
                return(false);
            }

            // Get the data
            string paramStr0 = ParamStr(0);
            Field  pOpen     = SeriesToField("Open", paramStr0 + ".open", size);

            if (!EnsureField(pOpen, paramStr0 + ".open"))
            {
                return(false);
            }
            Field pHigh = SeriesToField("High", paramStr0 + ".high", size);

            if (!EnsureField(pHigh, paramStr0 + ".high"))
            {
                return(false);
            }
            Field pLow = SeriesToField("Low", paramStr0 + ".low", size);

            if (!EnsureField(pLow, paramStr0 + ".low"))
            {
                return(false);
            }
            Field pClose = SeriesToField("Close", paramStr0 + ".close", size);

            if (!EnsureField(pClose, paramStr0 + ".close"))
            {
                return(false);
            }

            Navigator pNav = new Navigator();
            Recordset pRS  = new Recordset();

            pRS.AddField(pOpen);
            pRS.AddField(pHigh);
            pRS.AddField(pLow);
            pRS.AddField(pClose);

            pNav.Recordset_ = pRS;


            // Calculate the indicator
            Oscillator ta   = new Oscillator();
            Recordset  pInd = ta.Aroon(pNav, pRS, paramInt1);


            // Output the indicator values
            Clear();

            TwinIndicator pAroonDown = (TwinIndicator)EnsureSeries(FullName + " Down");

            pAroonDown.SetStrokeThickness(StrokeThickness, false);
            pAroonDown.SetStrokeColor(Colors.Red, false);

            pAroonDown.Clear();
            _title = FullName + " Up";

            for (int n = 0; n < size; ++n)
            {
                double?top;
                double?bottom;
                if (n < paramInt1)
                {
                    top    = null;
                    bottom = null;
                }
                else
                {
                    top    = pInd.Value("Aroon Up", n + 1);
                    bottom = pInd.Value("Aroon Down", n + 1);
                }
                AppendValue(DM.GetTimeStampByIndex(n), top);
                pAroonDown.AppendValue(DM.GetTimeStampByIndex(n), bottom);
            }

            return(_calculateResult = PostCalculate());
        }