From f385096d7f8992e6811d1308d136690839847f8a Mon Sep 17 00:00:00 2001
From: syneffort <syneffort@gmail.com>
Date: Wed, 15 Nov 2023 13:20:15 +0900
Subject: [PATCH] stacked area

---
 .../BasicPlots/StackedAreaWindow.xaml         |  29 ++++
 .../BasicPlots/StackedAreaWindow.xaml.cs      | 145 ++++++++++++++++++
 LC_Tutorial/Tutorial/MainWindow.xaml          |   1 +
 LC_Tutorial/Tutorial/MainWindow.xaml.cs       |   6 +
 4 files changed, 181 insertions(+)
 create mode 100644 LC_Tutorial/Tutorial/BasicPlots/StackedAreaWindow.xaml
 create mode 100644 LC_Tutorial/Tutorial/BasicPlots/StackedAreaWindow.xaml.cs

diff --git a/LC_Tutorial/Tutorial/BasicPlots/StackedAreaWindow.xaml b/LC_Tutorial/Tutorial/BasicPlots/StackedAreaWindow.xaml
new file mode 100644
index 0000000..67de92c
--- /dev/null
+++ b/LC_Tutorial/Tutorial/BasicPlots/StackedAreaWindow.xaml
@@ -0,0 +1,29 @@
+<Window x:Class="Tutorial.BasicPlots.StackedAreaWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Tutorial.BasicPlots"
+        xmlns:lvc="clr-namespace:LiveCharts.Wpf;assembly=LiveCharts.Wpf"
+        mc:Ignorable="d"
+        Title="StackedAreaWindow" Height="450" Width="800">
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="*"/>
+            <RowDefinition Height="30"/>
+            <RowDefinition Height="30"/>
+        </Grid.RowDefinitions>
+
+        <lvc:CartesianChart Grid.Row="0" Series="{Binding SeriesCollection}" LegendLocation="Right">
+            <lvc:CartesianChart.AxisX>
+                <lvc:Axis Title="Year" LabelFormatter="{Binding XFormatter}"/>
+            </lvc:CartesianChart.AxisX>
+            <lvc:CartesianChart.AxisY>
+                <lvc:Axis Title="Population" LabelFormatter="{Binding YFormatter}"/>
+            </lvc:CartesianChart.AxisY>
+        </lvc:CartesianChart>
+
+        <Button x:Name="btnChageMode" Grid.Row="1" Content="Change Stack Mode" Click="btnChageMode_Click"/>
+        <Button x:Name="btnAdd" Grid.Row="2" Content="Add" Click="btnAdd_Click"/>
+    </Grid>
+</Window>
diff --git a/LC_Tutorial/Tutorial/BasicPlots/StackedAreaWindow.xaml.cs b/LC_Tutorial/Tutorial/BasicPlots/StackedAreaWindow.xaml.cs
new file mode 100644
index 0000000..cbacf42
--- /dev/null
+++ b/LC_Tutorial/Tutorial/BasicPlots/StackedAreaWindow.xaml.cs
@@ -0,0 +1,145 @@
+using LiveCharts;
+using LiveCharts.Defaults;
+using LiveCharts.Wpf;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace Tutorial.BasicPlots
+{
+    /// <summary>
+    /// StackedAreaWindow.xaml에 대한 상호 작용 논리
+    /// </summary>
+    public partial class StackedAreaWindow : Window
+    {
+        private int _index = 2014;
+
+        public event PropertyChangedEventHandler? PropertyChanged;
+
+        public SeriesCollection SeriesCollection { get; set; }
+        public string[] Labels { get; set; }
+        public StackMode StackMode { get; set; }
+        public Func<double, string> XFormatter { get; set; }
+        public Func<double, string> YFormatter { get; set; }
+
+        public StackedAreaWindow()
+        {
+            InitializeComponent();
+            InitInstance();
+        }
+
+        private void InitInstance()
+        {
+            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 = 1,
+                    PointGeometry = DefaultGeometries.Square
+                },
+                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 = 1,
+                    PointGeometry = DefaultGeometries.Square
+                },
+                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 = 1,
+                    PointGeometry = DefaultGeometries.Square
+                },
+                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 = 1,
+                    PointGeometry = DefaultGeometries.Square
+                }
+            };
+
+            XFormatter = val => new DateTime((long)val).ToString("yyyy");
+            YFormatter = val => $"{val.ToString("N")} M";
+
+            DataContext = this;
+        }
+
+        private void btnChageMode_Click(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");
+        }
+
+        private void btnAdd_Click(object sender, RoutedEventArgs e)
+        {
+            Random rand = new Random();
+            int year = _index++;
+            foreach (var series in SeriesCollection.Cast<StackedAreaSeries>())
+            {
+                series.Values.Add(new DateTimePoint(new DateTime(year, 1, 1), ((DateTimePoint)series.Values[series.Values.Count - 1]).Value + rand.NextDouble()));
+            }
+        }
+    }
+}
diff --git a/LC_Tutorial/Tutorial/MainWindow.xaml b/LC_Tutorial/Tutorial/MainWindow.xaml
index d82d789..7059e62 100644
--- a/LC_Tutorial/Tutorial/MainWindow.xaml
+++ b/LC_Tutorial/Tutorial/MainWindow.xaml
@@ -16,6 +16,7 @@
             <Button x:Name="btnColumns" Content="Columns" Margin="3" Click="btnColumns_Click"/>
             <Button x:Name="btnStackedColumns" Content="Stacked Columns" Margin="3" Click="btnStackedColumns_Click"/>
             <Button x:Name="btnRows" Content="Rows" Margin="3" Click="btnRows_Click"/>
+            <Button x:Name="btnStackedArea" Content="Stacked Area" Margin="3" Click="btnStackedArea_Click"/>
         </StackPanel>
     </Grid>
 </Window>
diff --git a/LC_Tutorial/Tutorial/MainWindow.xaml.cs b/LC_Tutorial/Tutorial/MainWindow.xaml.cs
index b3df232..4aaabf1 100644
--- a/LC_Tutorial/Tutorial/MainWindow.xaml.cs
+++ b/LC_Tutorial/Tutorial/MainWindow.xaml.cs
@@ -49,5 +49,11 @@ namespace Tutorial
             RowsWindow win = new RowsWindow();
             win.Show();
         }
+
+        private void btnStackedArea_Click(object sender, RoutedEventArgs e)
+        {
+            StackedAreaWindow win = new StackedAreaWindow();
+            win.Show();
+        }
     }
 }