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PortfolioManager/DataSeriesViewModels/CompositeDataSource.cs

@@ -1,3 +1,4 @@
+using System;
 using CommunityToolkit.Mvvm.ComponentModel;
 using Eremex.AvaloniaUI.Charts;
 
@@ -6,5 +7,20 @@ namespace PortfolioManager.DataSeriesViewModels
   public partial class CompositeDataSource : ObservableObject
   {
     [ObservableProperty] ISeriesDataAdapter dataAdapter;
+    public (DateTime[],double[]) ToXYData()
+    {
+      double[] values = default;
+      DateTime[] dates = default;
+
+      if (null == DataAdapter) return (dates, values);
+      values = new double[DataAdapter.ItemCount];
+      dates = new DateTime[DataAdapter.ItemCount];
+      for (int index = 0; index < DataAdapter.ItemCount; index++)
+      {
+        values[index] = DataAdapter.GetNumericalValue(index, SeriesDataMemberType.Value);
+        dates[index] = DataAdapter.GetDateTimeValue(index, SeriesDataMemberType.Value1);
+      }
+      return (dates, values);
+    }
   }
 }

PortfolioManager/ViewModels/ScottPlotViewModel.cs

@@ -1,6 +1,10 @@
 using System;
+using Eremex.AvaloniaUI.Charts;
 using MarketData.DataAccess;
+using MarketData.Generator;
 using MarketData.MarketDataModel;
+using PortfolioManager.DataSeriesViewModels;
+using PortfolioManager.Models;
 using ScottPlot.Avalonia;
 using ScottPlot.Plottables;
 using ShimSkiaSharp;
@@ -8,6 +12,119 @@ using SkiaSharp;
 
 namespace PortfolioManager.ViewModels
 {
+    public class BollingerBandCompositeDataSourceGenerater
+    {
+      public BollingerBandCompositeDataSourceGenerater()
+      {
+      }
+
+    public void GenerateCompositeDataSources(AvaPlot plotter, BollingerBands bollingerBands)
+    {
+      K = BollingerBandModel.K(bollingerBands);
+      KL1 = BollingerBandModel.KL1(bollingerBands);
+      L = BollingerBandModel.L(bollingerBands);
+      LP1 = BollingerBandModel.LP1(bollingerBands);
+      High = BollingerBandModel.High(bollingerBands);
+      Low = BollingerBandModel.Low(bollingerBands);
+      Close = BollingerBandModel.Close(bollingerBands);
+      SMAN = BollingerBandModel.SMAN(bollingerBands);
+      Volume = BollingerBandModel.Volume(bollingerBands);
+      LeastSquares = BollingerBandModel.LeastSquares(bollingerBands);
+
+      Scatter scatter = default;
+      {
+        (DateTime[] dates, double[] values) = K.ToXYData();
+        scatter = plotter.Plot.Add.ScatterLine(dates, values, ScottPlot.Color.FromSKColor(SKColors.Green));
+        scatter.LegendText = "K";
+        scatter.LineWidth = 2;
+      }
+
+      {
+        (DateTime[] dates, double[] values) = KL1.ToXYData();
+        scatter = plotter.Plot.Add.ScatterLine(dates, values, ScottPlot.Color.FromSKColor(SKColors.Green));
+        scatter.LegendText = "KL1";
+        scatter.LineWidth = 1;
+      }
+
+      {
+        (DateTime[] dates, double[] values) = L.ToXYData();
+        scatter = plotter.Plot.Add.ScatterLine(dates, values, ScottPlot.Color.FromSKColor(SKColors.Green));
+        scatter.LegendText = "L";
+        scatter.LineWidth = 2;
+      }
+
+      {
+        (DateTime[] dates, double[] values) = LP1.ToXYData();
+        scatter = plotter.Plot.Add.ScatterLine(dates, values, ScottPlot.Color.FromSKColor(SKColors.Green));
+        scatter.LegendText = "LP1";
+        scatter.LineWidth = 1;
+      }
+
+      {
+        (DateTime[] dates, double[] values) = High.ToXYData();
+        scatter = plotter.Plot.Add.ScatterLine(dates, values, ScottPlot.Color.FromSKColor(SKColors.Blue));
+        scatter.LegendText = "High";
+        scatter.LineWidth = 1;
+      }
+
+      {
+        (DateTime[] dates, double[] values) = Low.ToXYData();
+        scatter = plotter.Plot.Add.ScatterLine(dates, values, ScottPlot.Color.FromSKColor(SKColors.Red));
+        scatter.LegendText = "Low";
+        scatter.LineWidth = 1;
+      }
+
+      {
+        (DateTime[] dates, double[] values) = Close.ToXYData();
+        scatter = plotter.Plot.Add.ScatterLine(dates, values, ScottPlot.Color.FromSKColor(SKColors.Black));
+        scatter.LegendText = "Close";
+        scatter.LineWidth = 1;
+      }
+
+      {
+        (DateTime[] dates, double[] values) = LeastSquares.ToXYData();
+        scatter = plotter.Plot.Add.ScatterLine(dates, values, ScottPlot.Color.FromSKColor(SKColors.Orange));
+        scatter.LegendText = "LeastSquares";
+        scatter.LineWidth = 1;
+      }      
+
+      {
+        (DateTime[] dates, double[] values) = SMAN.ToXYData();
+        scatter = plotter.Plot.Add.ScatterLine(dates, values, ScottPlot.Color.FromSKColor(SKColors.Purple));
+        scatter.LegendText = "SMAN";
+        scatter.LineWidth = 1;
+      }                
+
+
+
+
+
+
+    }
+
+
+
+      public CompositeDataSource K { get; private set; } = Empty();
+      public CompositeDataSource KL1 { get; private set; } = Empty();
+      public CompositeDataSource L { get; private set; } = Empty();
+      public CompositeDataSource LP1 { get; private set; } = Empty();
+      public CompositeDataSource High { get; private set; } = Empty();
+      public CompositeDataSource Low { get; private set; } = Empty();
+      public CompositeDataSource Close { get; private set; } = Empty();
+      public CompositeDataSource SMAN { get; private set; } = Empty();
+      public CompositeDataSource Volume { get; private set; } = Empty();
+      public CompositeDataSource LeastSquares { get; private set; } = Empty();
+      
+      private static CompositeDataSource Empty()
+      {
+        return new CompositeDataSource()
+        {
+          DataAdapter = new SortedDateTimeDataAdapter()
+        };
+      }      
+    }
+    
+
 
 
 
@@ -21,26 +138,37 @@ namespace PortfolioManager.ViewModels
 
         public void PlotterLoadedEvent(object sender, PlotterLoadedEventArgs e)
         {
+            plotter = e.AvaPlot;   // we should store this somewhere
             Prices prices = PricingDA.GetPrices("SPY", 180);
-            DateTime[] dates = new DateTime[prices.Count];
+            BollingerBands bollingerBands = BollingerBandGenerator.GenerateBollingerBands(prices);
-            double[] closes = new double[prices.Count];
 
-            for (int index = 0; index < prices.Count; index++)
+            BollingerBandCompositeDataSourceGenerater bollingerBandCompositeDataSourceGenerater = new BollingerBandCompositeDataSourceGenerater();
-            {
+            bollingerBandCompositeDataSourceGenerater.GenerateCompositeDataSources(plotter, bollingerBands);
-                dates[index] = prices[index].Date;
+            plotter.Plot.Axes.AutoScale();
-                closes[index] = prices[index].Close;
+            plotter.Refresh();             
-            }
 
 
-            plotter = e.AvaPlot;
+
+            // DateTime[] dates = new DateTime[prices.Count];
+            // double[] closes = new double[prices.Count];
+
+            // for (int index = 0; index < prices.Count; index++)
+            // {
+            //     dates[index] = prices[index].Date;
+            //     closes[index] = prices[index].Close;
+            // }
+
+
+
+            // plotter = e.AvaPlot;
             // double[] dataX = { 1, 2, 3, 4, 5 };
             // double[] dataY = { 1, 4, 9, 16, 25 };
             //            plotter.Plot.Add.Scatter(dataX, dataY);
-            Scatter closeScatter = plotter.Plot.Add.ScatterLine(dates, closes, ScottPlot.Color.FromSKColor(SKColors.Red));
+            // Scatter closeScatter = plotter.Plot.Add.ScatterLine(dates, closes, ScottPlot.Color.FromSKColor(SKColors.Red));
-            closeScatter.LegendText = "Close";
+            // closeScatter.LegendText = "Close";
-            closeScatter.LineWidth = 3;
+            // closeScatter.LineWidth = 2;
-            plotter.Plot.Axes.AutoScale();
+            // plotter.Plot.Axes.AutoScale();
-            plotter.Refresh();
+            // plotter.Refresh();
         }
         // ********************************************** P E R S I S T E N C E *************************
         public override bool CanPersist()