添加项目文件。

2026-04-14 13:16:38 +08:00 · 2021-07-23 09:42:22 +08:00
commit f25a958797
2798 changed files with 352360 additions and 0 deletions
--- a/Live-Charts-master/Examples/Wpf/CartesianChart/StackedArea/StackedAreaExample.xaml.cs
+++ b/Live-Charts-master/Examples/Wpf/CartesianChart/StackedArea/StackedAreaExample.xaml.cs
@@ -0,0 +1,140 @@
+using System;
+using System.ComponentModel;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using System.Windows;
+using System.Windows.Controls;
+using LiveCharts;
+using LiveCharts.Defaults;
+using LiveCharts.Wpf;
+using Wpf.Annotations;
+
+namespace Wpf.CartesianChart.StackedArea
+{
+    /// <summary>
+    /// Interaction logic for StackedLine.xaml
+    /// </summary>
+    public partial class StackedAreaExample : INotifyPropertyChanged
+    {
+        private Func<double, string> _yFormatter;
+
+        public StackedAreaExample()
+        {
+            InitializeComponent();
+
+            SeriesCollection = new SeriesCollection
+            {
+                new StackedAreaSeries
+                {
+                    Title = "Africa",
+                    Values = new ChartValues<DateTimePoint>
+                    {
+                        new DateTimePoint(new DateTime(1950, 1, 1), .228),
+                        new DateTimePoint(new DateTime(1960, 1, 1), .285),
+                        new DateTimePoint(new DateTime(1970, 1, 1), .366),
+                        new DateTimePoint(new DateTime(1980, 1, 1), .478),
+                        new DateTimePoint(new DateTime(1990, 1, 1), .629),
+                        new DateTimePoint(new DateTime(2000, 1, 1), .808),
+                        new DateTimePoint(new DateTime(2010, 1, 1), 1.031),
+                        new DateTimePoint(new DateTime(2013, 1, 1), 1.110)
+                    },
+                    LineSmoothness = 0
+                },
+                new StackedAreaSeries
+                {
+                    Title = "N & S America",
+                    Values = new ChartValues<DateTimePoint>
+                    {
+                        new DateTimePoint(new DateTime(1950, 1, 1), .339),
+                        new DateTimePoint(new DateTime(1960, 1, 1), .424),
+                        new DateTimePoint(new DateTime(1970, 1, 1), .519),
+                        new DateTimePoint(new DateTime(1980, 1, 1), .618),
+                        new DateTimePoint(new DateTime(1990, 1, 1), .727),
+                        new DateTimePoint(new DateTime(2000, 1, 1), .841),
+                        new DateTimePoint(new DateTime(2010, 1, 1), .942),
+                        new DateTimePoint(new DateTime(2013, 1, 1), .972)
+                    },
+                    LineSmoothness = 0
+                },
+                new StackedAreaSeries
+                {
+                    Title = "Asia",
+                    Values = new ChartValues<DateTimePoint>
+                    {
+                        new DateTimePoint(new DateTime(1950, 1, 1), 1.395),
+                        new DateTimePoint(new DateTime(1960, 1, 1), 1.694),
+                        new DateTimePoint(new DateTime(1970, 1, 1), 2.128),
+                        new DateTimePoint(new DateTime(1980, 1, 1), 2.634),
+                        new DateTimePoint(new DateTime(1990, 1, 1), 3.213),
+                        new DateTimePoint(new DateTime(2000, 1, 1), 3.717),
+                        new DateTimePoint(new DateTime(2010, 1, 1), 4.165),
+                        new DateTimePoint(new DateTime(2013, 1, 1), 4.298)
+                    },
+                    LineSmoothness = 0
+                },
+                new StackedAreaSeries
+                {
+                    Title = "Europe",
+                    Values = new ChartValues<DateTimePoint>
+                    {
+                        new DateTimePoint(new DateTime(1950, 1, 1), .549),
+                        new DateTimePoint(new DateTime(1960, 1, 1), .605),
+                        new DateTimePoint(new DateTime(1970, 1, 1), .657),
+                        new DateTimePoint(new DateTime(1980, 1, 1), .694),
+                        new DateTimePoint(new DateTime(1990, 1, 1), .723),
+                        new DateTimePoint(new DateTime(2000, 1, 1), .729),
+                        new DateTimePoint(new DateTime(2010, 1, 1), .740),
+                        new DateTimePoint(new DateTime(2013, 1, 1), .742)
+                    },
+                    LineSmoothness = 0
+                }
+            };
+
+            XFormatter = val => new DateTime((long) val).ToString("yyyy");
+            YFormatter = val => val.ToString("N") + " M";
+
+            DataContext = this;
+        }
+
+        public SeriesCollection SeriesCollection { get; set; }
+        public Func<double, string> XFormatter { get; set; }
+
+        public Func<double, string> YFormatter
+        {
+            get { return _yFormatter; }
+            set
+            {
+                _yFormatter = value;
+                OnPropertyChanged();
+            }
+        }
+
+        public StackMode StackMode { get; set; }
+
+        private void ChangeStackModeOnClick(object sender, RoutedEventArgs e)
+        {
+            foreach (var series in SeriesCollection.Cast<StackedAreaSeries>())
+            {
+                series.StackMode = series.StackMode == StackMode.Percentage
+                    ? StackMode.Values
+                    : StackMode.Percentage;
+            }
+
+            if (((StackedAreaSeries) SeriesCollection[0]).StackMode == StackMode.Values)
+            {
+                YFormatter = val => val.ToString("N") + " M";
+            }
+            else
+            {
+                YFormatter = val => val.ToString("P");
+            }
+        }
+
+        public event PropertyChangedEventHandler PropertyChanged;
+
+        protected virtual void OnPropertyChanged(string propertyName = null)
+        {
+            if (PropertyChanged != null) PropertyChanged.Invoke(this, new PropertyChangedEventArgs(propertyName));
+        }
+    }
+}