mirror of
https://github.com/mihakralj/QuanTAlib.git
synced 2026-07-31 10:57:43 +00:00
Miha Kralj
87 lines
3.0 KiB
C#
87 lines
3.0 KiB
C#
using System.Drawing;
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using System.Runtime.CompilerServices;
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using TradingPlatform.BusinessLayer;
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namespace QuanTAlib;
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[SkipLocalsInit]
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public sealed class KstIndicator : Indicator, IWatchlistIndicator
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{
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[InputParameter("ROC Period 1", sortIndex: 1, 1, 500, 1, 0)]
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public int R1 { get; set; } = 10;
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[InputParameter("ROC Period 2", sortIndex: 2, 1, 500, 1, 0)]
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public int R2 { get; set; } = 15;
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[InputParameter("ROC Period 3", sortIndex: 3, 1, 500, 1, 0)]
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public int R3 { get; set; } = 20;
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[InputParameter("ROC Period 4", sortIndex: 4, 1, 500, 1, 0)]
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public int R4 { get; set; } = 30;
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[InputParameter("SMA Smooth 1", sortIndex: 5, 1, 500, 1, 0)]
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public int S1 { get; set; } = 10;
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[InputParameter("SMA Smooth 2", sortIndex: 6, 1, 500, 1, 0)]
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public int S2 { get; set; } = 10;
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[InputParameter("SMA Smooth 3", sortIndex: 7, 1, 500, 1, 0)]
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public int S3 { get; set; } = 10;
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[InputParameter("SMA Smooth 4", sortIndex: 8, 1, 500, 1, 0)]
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public int S4 { get; set; } = 15;
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[InputParameter("Signal Period", sortIndex: 9, 1, 500, 1, 0)]
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public int SignalPeriod { get; set; } = 9;
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[IndicatorExtensions.DataSourceInput(sortIndex: 10)]
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public SourceType Source { get; set; } = SourceType.Close;
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[InputParameter("Show cold values", sortIndex: 21)]
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public bool ShowColdValues { get; set; } = true;
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private Kst _kst = null!;
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private readonly LineSeries _kstSeries;
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private readonly LineSeries _signalSeries;
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public static int MinHistoryDepths => 0;
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int IWatchlistIndicator.MinHistoryDepths => MinHistoryDepths;
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public override string ShortName => $"KST ({R1},{R2},{R3},{R4})";
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public override string SourceCodeLink => "https://github.com/mihakralj/QuanTAlib/blob/main/lib/oscillators/kst/Kst.Quantower.cs";
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public KstIndicator()
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{
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OnBackGround = true;
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SeparateWindow = true;
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Name = "KST - Know Sure Thing Oscillator";
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Description = "Weighted sum of 4 smoothed ROC values with signal line (SMA of KST)";
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_kstSeries = new LineSeries(name: "KST", color: Color.Yellow, width: 2, style: LineStyle.Solid);
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_signalSeries = new LineSeries(name: "Signal", color: Color.Aqua, width: 1, style: LineStyle.Solid);
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AddLineSeries(_kstSeries);
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AddLineSeries(_signalSeries);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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protected override void OnInit()
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{
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_kst = new Kst(R1, R2, R3, R4, S1, S2, S3, S4, SignalPeriod);
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base.OnInit();
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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protected override void OnUpdate(UpdateArgs args)
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{
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var priceSelector = Source.GetPriceSelector();
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var item = HistoricalData[0, SeekOriginHistory.End];
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double price = priceSelector(item);
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_ = _kst.Update(new TValue(item.TimeLeft, price), args.IsNewBar());
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_kstSeries.SetValue(_kst.KstValue.Value, _kst.IsHot, ShowColdValues);
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_signalSeries.SetValue(_kst.Signal.Value, _kst.IsHot, ShowColdValues);
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}
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}
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