mirror of
https://github.com/mihakralj/QuanTAlib.git
synced 2026-08-05 12:37:43 +00:00
Miha Kralj
060649192f
- Remove 'C# Implementation Considerations' sections from 34 indicator .md files - Delete 29 temp PowerShell scripts (_fix_mojibake.ps1, _hex_scan.ps1, etc.) - Move test files into tests/ subdirectories for consistent project structure - Add trader-focused bullet points to indicator documentation
91 lines
3.2 KiB
C#
91 lines
3.2 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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/// <summary>
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/// SAREXT (Parabolic SAR Extended) Quantower indicator.
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/// Extended Parabolic SAR with asymmetric acceleration factors for long/short positions.
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/// Sign-encoded output: positive = long, negative = short.
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/// </summary>
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[SkipLocalsInit]
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public sealed class SarextIndicator : Indicator, IWatchlistIndicator
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{
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[InputParameter("Start Value", sortIndex: 0, -1000.0, 1000.0, 0.01, 2)]
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public double StartValue { get; set; } = 0;
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[InputParameter("Offset On Reverse", sortIndex: 1, 0.0, 100.0, 0.01, 2)]
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public double OffsetOnReverse { get; set; } = 0;
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[InputParameter("AF Init Long", sortIndex: 2, 0.001, 1.0, 0.001, 3)]
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public double AfInitLong { get; set; } = 0.02;
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[InputParameter("AF Long", sortIndex: 3, 0.001, 1.0, 0.001, 3)]
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public double AfLong { get; set; } = 0.02;
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[InputParameter("AF Max Long", sortIndex: 4, 0.001, 1.0, 0.01, 2)]
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public double AfMaxLong { get; set; } = 0.20;
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[InputParameter("AF Init Short", sortIndex: 5, 0.001, 1.0, 0.001, 3)]
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public double AfInitShort { get; set; } = 0.02;
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[InputParameter("AF Short", sortIndex: 6, 0.001, 1.0, 0.001, 3)]
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public double AfShort { get; set; } = 0.02;
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[InputParameter("AF Max Short", sortIndex: 7, 0.001, 1.0, 0.01, 2)]
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public double AfMaxShort { get; set; } = 0.20;
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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 Sarext _indicator = null!;
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private readonly LineSeries _sarSeries;
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public static int MinHistoryDepths => 2;
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int IWatchlistIndicator.MinHistoryDepths => MinHistoryDepths;
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public override string ShortName =>
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$"SAREXT({AfInitLong:F2},{AfMaxLong:F2},{AfInitShort:F2},{AfMaxShort:F2})";
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public override string SourceCodeLink =>
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"https://github.com/mihakralj/QuanTAlib/blob/main/lib/reversals/sarext/Sarext.cs";
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public SarextIndicator()
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{
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OnBackGround = true;
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SeparateWindow = false;
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Name = "SAREXT - Parabolic SAR Extended";
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Description = "Extended Parabolic SAR with asymmetric acceleration factors for long and short positions. Sign-encoded output.";
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_sarSeries = new LineSeries(name: "SAREXT", color: Color.DodgerBlue, width: 2, style: LineStyle.Dot);
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AddLineSeries(_sarSeries);
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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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_indicator = new Sarext(StartValue, OffsetOnReverse,
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AfInitLong, AfLong, AfMaxLong,
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AfInitShort, AfShort, AfMaxShort);
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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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_ = _indicator.Update(this.GetInputBar(args), args.IsNewBar());
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double sarValue = _indicator.Last.Value;
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double displayValue = Math.Abs(sarValue);
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_sarSeries.SetValue(displayValue, _indicator.IsHot, ShowColdValues);
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if (_indicator.IsHot || ShowColdValues)
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{
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Color color = _indicator.IsLong ? Color.Green : Color.Red;
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_sarSeries.SetMarker(0, new IndicatorLineMarker(color));
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}
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}
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}
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