Step 1: Create a new WinUI project: Blank App, Packaged (WinUI 3 in Desktop)

Step 2: Upgrade the Microsoft.WindowsAppSDK to the latest (non-prerelease) version

Step 3: Install the ScottPlot.WinUI package (include prerelease packages in search)

Step 4: In the solution explorer, right-click the app, and select properties. In the Application settings (General section) set the “Target OS version” to 10.0.22200.0 or later.

Step 5: Edit MainWindow.xaml to reference the ScottPlot.WinUI package and add a WinUIPlot control to the window

<?xml version="1.0" encoding="utf-8"?>
<Window
    x:Class="QuickstartApp.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:QuickstartApp"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:ScottPlot="using:ScottPlot.WinUI"
    mc:Ignorable="d">

    <ScottPlot:WinUIPlot x:Name="WinUIPlot1"/>
</Window>

Step 6: Edit MainWindow.xaml.cs to add data to the plot and initiate a render

using Microsoft.UI.Xaml;
using ScottPlot;

namespace QuickstartApp;

public sealed partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();

        double[] sin = Generate.Sin(51);
        double[] cos = Generate.Cos(51);
        WinUIPlot1.Plot.Add.Signal(sin);
        WinUIPlot1.Plot.Add.Signal(cos);

        WinUIPlot1.Refresh();
    }
}