Histogram

Source/Meadow.Desktop/HMI_Views/MeadowApp.cs

@@ -28,12 +28,13 @@ public override Task Initialize()
         //var views = new CultivarView(Device.Display);
         //var views = new ProjectLabDemoView(Device.Display);
         //var views = new AtmosphericHMI(Device.Display);
-        var views = new WifiWeatherV2(Device.Display);
+        //var views = new WifiWeatherV2(Device.Display);
+        var views = new HistogramView(Device.Display);
 
         _ = Task.Run(() =>
         {
             Thread.Sleep(2000);
-            views.Run();
+            _ = views.Run();
         });
 
         return Task.CompletedTask;

Source/Meadow.Desktop/HMI_Views/Views/CultivarView.cs

@@ -8,7 +8,7 @@ namespace HMI_Views.Views;
 
 public class CultivarView
 {
-    DisplayScreen screen;
+    private DisplayScreen screen;
 
     private readonly Image imgWifi = Image.LoadFromResource("HMI_Views.Resources.img-wifi.bmp");
     private readonly Image imgSync = Image.LoadFromResource("HMI_Views.Resources.img-sync.bmp");

Source/Meadow.Desktop/HMI_Views/Views/HistogramView.cs

@@ -0,0 +1,68 @@
+using Meadow;
+using Meadow.Foundation.Graphics.MicroLayout;
+using Meadow.Peripherals.Displays;
+using System;
+using System.Threading.Tasks;
+
+namespace HMI_Views.Views;
+
+public class HistogramView
+{
+    private DisplayScreen screen;
+    private HistogramChart spectraChart1;
+    private HistogramChart spectraChart2;
+
+    public HistogramView(IPixelDisplay _display)
+    {
+        screen = new DisplayScreen(_display);
+
+        spectraChart1 = new HistogramChart(10, 0, screen.Width - 20, screen.Height / 2);
+        spectraChart1.Series.Add(new HistogramChartSeries { ForeColor = Color.Red });
+
+        spectraChart2 = new HistogramChart(10, screen.Height / 2, screen.Width - 20, screen.Height / 2);
+        spectraChart2.Series.Add(new HistogramChartSeries { ForeColor = Color.Green });
+
+        screen.Controls.Add(spectraChart1, spectraChart2);
+    }
+
+    public async Task Run()
+    {
+        var count = 30;
+
+        while (true)
+        {
+            screen.BeginUpdate();
+
+            var s1 = new (int X, int Y)[count];
+            s1[0].X = 1;
+            s1[0].Y = 0;
+            for (var i = 1; i < s1.Length - 1; i++)
+            {
+                s1[i].X = Random.Shared.Next(1, 50000);
+                s1[i].Y = Random.Shared.Next(1, 300);
+            }
+            s1[s1.Length - 1].X = 50000;
+            s1[s1.Length - 1].Y = 0;
+
+            spectraChart1.Series[0].DataElements = s1;
+
+            var s2 = new (int X, int Y)[count];
+            s2[0].X = 100;
+            s2[0].Y = 0;
+            for (var i = 1; i < s2.Length - 1; i++)
+            {
+                s2[i].X = Random.Shared.Next(100, 50000);
+                s2[i].Y = Random.Shared.Next(1, 300);
+            }
+            s2[s2.Length - 1].X = 50000;
+            s2[s2.Length - 1].Y = 0;
+
+            spectraChart2.Series[0].DataElements = s2;
+
+            screen.EndUpdate();
+
+            await Task.Delay(500);
+        }
+    }
+
+}