项目结构调整

Others/Live-Charts-master/Examples/Wpf/CartesianChart/Chart to Image/ChartToImageSample.xaml

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+<UserControl x:Class="Wpf.CartesianChart.Chart_to_Image.ChartToImageSample"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:local="clr-namespace:Wpf.CartesianChart.Chart_to_Image"
+             mc:Ignorable="d" 
+             d:DesignHeight="300" d:DesignWidth="300">
+    <Grid>
+        <Button Click="BuildPngOnClick">Build Png</Button>
+    </Grid>
+</UserControl>

Others/Live-Charts-master/Examples/Wpf/CartesianChart/Chart to Image/ChartToImageSample.xaml.cs

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+using System.IO;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using LiveCharts;
+using LiveCharts.Wpf;
+
+namespace Wpf.CartesianChart.Chart_to_Image
+{
+    /// <summary>
+    /// Interaction logic for ChartToImageSample.xaml
+    /// </summary>
+    public partial class ChartToImageSample : UserControl
+    {
+        public ChartToImageSample()
+        {
+            InitializeComponent();
+        }
+
+        private void BuildPngOnClick(object sender, RoutedEventArgs e)
+        {
+            var myChart = new LiveCharts.Wpf.CartesianChart
+            {
+                DisableAnimations = true,
+                Width = 600,
+                Height = 200,
+                Series = new SeriesCollection
+                {
+                    new LineSeries
+                    {
+                        Values = new ChartValues<double> {1, 6, 7, 2, 9, 3, 6, 5}
+                    }
+                }
+            };
+
+            var viewbox = new Viewbox();
+            viewbox.Child = myChart;
+            viewbox.Measure(myChart.RenderSize);
+            viewbox.Arrange(new Rect(new Point(0, 0), myChart.RenderSize));
+            myChart.Update(true, true); //force chart redraw
+            viewbox.UpdateLayout();
+
+            SaveToPng(myChart, "chart.png");
+            //png file was created at the root directory.
+        }
+
+        private void SaveToPng(FrameworkElement visual, string fileName)
+        {
+            var encoder = new PngBitmapEncoder();
+            EncodeVisual(visual, fileName, encoder);
+        }
+
+        private static void EncodeVisual(FrameworkElement visual, string fileName, BitmapEncoder encoder)
+        {
+            var bitmap = new RenderTargetBitmap((int)visual.ActualWidth, (int)visual.ActualHeight, 96, 96, PixelFormats.Pbgra32);
+            bitmap.Render(visual);
+            var frame = BitmapFrame.Create(bitmap);
+            encoder.Frames.Add(frame);
+            using (var stream = File.Create(fileName)) encoder.Save(stream);
+        }
+    }
+}