FinancialChart for UWP
Envelopes
分析機能 > オーバーレイ > Envelopes

Envelopes（エンベロープ）オーバーレイは、FinancialChartの移動平均エンベロープオーバーレイ系列を表します。この移動平均エンベロープは、標準移動平均の上および下に設定されるパーセントベースのエンベロープです。移動平均には、単純移動平均または指数移動平均を使用できます。強気配トレンドの間は、上部エンベロープを越えたブレークスルーが強さと上昇トレンドの継続を示します。弱気配トレンドの間は、下部エンベロープを越えたブレークスルーが強さと下降トレンドの継続を示します。

FinancialChart にエンベロープオーバーレイを追加するには、FinancialChart コントロールをアプリケーションに追加し、コントロールに適切なデータソースを連結するか、Quote Collection でコントロールにデータを追加します。FinancialChart にデータを連結または追加するには、ItemsSource オブジェクトを使用します。

Envelopes クラスは、上下エンベロープをレンダリングするためのパーセンテージ値を受け取る Size プロパティと、単純移動平均または指数移動平均を指定する Type プロパティを公開します。IndicatorBase クラスは Period プロパティを提供します。これは、単純または指数移動平均を計算するための基準期間を指定する整数値を受け取ります。これらのプロパティの値に基づいて、エンベロープオーバーレイが計算され、FinancialChartにプロットされます。

また、FinancialChart では、アプリケーションでアラートを作成したり、動的データの使用中にログを取るために、計算された下限 y 値、上限 y 値を実行時に取得できます。

Envelopes-Overlay

次の例は、上の図で示すように、企業 Box Inc. の一定期間の株価を考察し、同じ株価チャートにエンベロープオーバーレイをプロットします。この例では、 json ファイルのデータを使用します。この json ファイルにアクセスするために、DataService.cs クラスを作成します。

json ファイルの［ビルドアクション］プロパティが［埋め込まれたリソース］に設定されていることを確認します。
XAML
コードのコピー 
<Page xmlns:Finance="using:C1.Xaml.Chart.Finance"
      xmlns:Chart="using:C1.Xaml.Chart"
    xmlns:c1="using:C1.Xaml"
    x:Class="Envelope.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:Envelope"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
      DataContext="{Binding RelativeSource={RelativeSource Mode=Self}}">

    <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
        <Finance:C1FinancialChart x:Name="financialChart"
                             ItemsSource="{Binding Data}"
                             Background="White"
                             ChartType="Candlestick"
                             BindingX="Date"
                             ToolTipContent="{}{seriesName}&#x000A;{Date} {y}" 
                             Margin="0,37,-1,71">
            <Finance:FinancialSeries Binding="High,Low,Open,Close" 
                                SeriesName="Box Inc." />
            <Finance:Envelopes Binding="High,Low,Close" 
                          Period="20" 
                          Size="0.03" 
                          Type="Simple" 
                          SeriesName="Envelopes">
                <Finance:Envelopes.Style>
                    <Chart:ChartStyle Stroke="Green" StrokeThickness="2" />
                </Finance:Envelopes.Style>
            </Finance:Envelopes>
            <Finance:C1FinancialChart.AxisX>
                <Chart:Axis LabelAngle="45" MajorUnit="3"/>
            </Finance:C1FinancialChart.AxisX>
        </Finance:C1FinancialChart>
    </Grid>
</Page>
   

DataService.cs に次の参照を追加します。

Public Class DataService
    Public Function GetData() As List(Of Quote)
        Dim path As String = "EnvelopeVB.box.json"
        'EnvelopeVBをアプリケーション名で置き換えます。      
        Dim asm As Assembly = Me.[GetType]().GetTypeInfo().Assembly
        Dim stream = asm.GetManifestResourceStream(path)
        Dim ser = New DataContractJsonSerializer(GetType(Quote()))
        Dim data As Quote() = CType(ser.ReadObject(stream), Quote())
        Return data.ToList()
    End Function

    Shared _ds As DataService
    Public Shared Function GetService() As DataService
        If _ds Is Nothing Then
            _ds = New DataService()
        End If
        Return _ds
    End Function
End Class

public class DataService
{
    public List<Quote> GetData()
    {
        string path = "Envelope.Resources.box.json";
        //Envelopeをアプリケーション名で置き換えます。       
        var asm = this.GetType().GetTypeInfo().Assembly;
        var stream = asm.GetManifestResourceStream(path);
        var ser = new DataContractJsonSerializer(typeof(Quote[]));
        var data = (Quote[])ser.ReadObject(stream);
        return data.ToList();
    }
    static DataService _ds;
    public static DataService GetService()
    {
        if (_ds == null)
            _ds = new DataService();
        return _ds;
    }
}

Json Data

[
    {"date":"15/01/23","open":20.2,"high":24.73,"low":20.16,"close":23.23,"volume":42593223},
    {"date":"15/01/26","open":23.67,"high":24.39,"low":22.5,"close":22.6,"volume":8677164},
    {"date":"15/01/27","open":22,"high":22.47,"low":21.17,"close":21.3,"volume":3272512},
    {"date":"15/01/28","open":21.62,"high":21.84,"low":19.6,"close":19.78,"volume":5047364},
    {"date":"15/01/29","open":19.9,"high":19.95,"low":18.51,"close":18.8,"volume":3419482},
    {"date":"15/01/30","open":18.47,"high":19.48,"low":18.22,"close":18.81,"volume":2266439},
    {"date":"15/02/02","open":19.18,"high":19.3,"low":18.01,"close":18.02,"volume":2071168},
    {"date":"15/02/03","open":18.22,"high":18.64,"low":18.12,"close":18.24,"volume":1587435},
    {"date":"15/02/04","open":18.2,"high":18.35,"low":17,"close":17.1,"volume":2912224},
    {"date":"15/02/05","open":17.3,"high":17.31,"low":16.41,"close":16.66,"volume":2682187},
    {"date":"15/02/06","open":17.39,"high":18.88,"low":17.21,"close":18.12,"volume":3929164},
    {"date":"15/02/09","open":18.86,"high":19.95,"low":18.45,"close":19.6,"volume":3226650},
    {"date":"15/02/10","open":20.5,"high":21,"low":19.63,"close":20.99,"volume":2804409},
    {"date":"15/02/11","open":20.89,"high":21,"low":20.2,"close":20.96,"volume":1698365},
    {"date":"15/02/12","open":20.66,"high":20.85,"low":19.75,"close":20.17,"volume":1370320},
    {"date":"15/02/13","open":20.19,"high":20.68,"low":20,"close":20.18,"volume":711951},
    {"date":"15/02/17","open":19.5,"high":20.1,"low":18.8,"close":19.05,"volume":2093602},
    {"date":"15/02/18","open":18.31,"high":18.5,"low":17.96,"close":18,"volume":1849490},
    {"date":"15/02/19","open":18.33,"high":19.25,"low":17.91,"close":18.96,"volume":1311518},
    {"date":"15/02/20","open":18.68,"high":19.3,"low":18.65,"close":18.85,"volume":1001692},
    {"date":"15/02/23","open":18.8,"high":18.89,"low":18.11,"close":18.21,"volume":670087},
    {"date":"15/02/24","open":18.46,"high":19,"low":18.27,"close":18.83,"volume":759263},
    {"date":"15/02/25","open":18.83,"high":19.48,"low":18.47,"close":18.67,"volume":915580},
    {"date":"15/02/26","open":18.64,"high":19.2,"low":18.64,"close":18.94,"volume":461283},
    {"date":"15/02/27","open":18.8,"high":19.12,"low":18.55,"close":18.66,"volume":617199},
    {"date":"15/03/02","open":18.66,"high":19.09,"low":18.65,"close":18.79,"volume":519605},
    {"date":"15/03/03","open":18.79,"high":19.21,"low":18.45,"close":18.59,"volume":832415},
    {"date":"15/03/04","open":18.64,"high":19.05,"low":18.32,"close":19,"volume":539688},
    {"date":"15/03/05","open":19.2,"high":19.2,"low":18.8,"close":19.14,"volume":486149},
    {"date":"15/03/06","open":19.03,"high":19.1,"low":18.7,"close":18.91,"volume":685659},
    {"date":"15/03/09","open":18.98,"high":20.15,"low":18.96,"close":19.4,"volume":1321363},
    {"date":"15/03/10","open":19.3,"high":19.8,"low":18.85,"close":19.64,"volume":615743},
    {"date":"15/03/11","open":20.08,"high":20.65,"low":19.24,"close":20.53,"volume":2167167},
    {"date":"15/03/12","open":17.17,"high":18.2,"low":16.76,"close":18.2,"volume":6837638},
    {"date":"15/03/13","open":18.05,"high":18.05,"low":17.3,"close":17.88,"volume":1715629},
    {"date":"15/03/16","open":17.91,"high":18,"low":17.01,"close":17.13,"volume":1321313},
    {"date":"15/03/17","open":17.28,"high":17.37,"low":16.6,"close":17.12,"volume":1272242},
    {"date":"15/03/18","open":17.1,"high":17.27,"low":16.91,"close":17.01,"volume":530063},
    {"date":"15/03/19","open":17,"high":17.28,"low":17,"close":17.06,"volume":536427},
    {"date":"15/03/20","open":17.13,"high":17.24,"low":16.88,"close":17.21,"volume":1320237},
    {"date":"15/03/23","open":17.21,"high":17.23,"low":17.01,"close":17.11,"volume":509798},
    {"date":"15/03/24","open":17.02,"high":17.18,"low":16.82,"close":17,"volume":962149},
    {"date":"15/03/25","open":16.92,"high":16.99,"low":16.82,"close":16.97,"volume":565673},
    {"date":"15/03/26","open":16.83,"high":17.56,"low":16.83,"close":17.54,"volume":884523},
    {"date":"15/03/27","open":17.58,"high":18.3,"low":17.11,"close":18.3,"volume":705626},
    {"date":"15/03/30","open":18.5,"high":19.4,"low":18.4,"close":19.05,"volume":1151620},
    {"date":"15/03/31","open":19.08,"high":20.58,"low":18.4,"close":19.75,"volume":2020679},
    {"date":"15/04/01","open":19.69,"high":19.69,"low":18.55,"close":18.65,"volume":961078},
    {"date":"15/04/02","open":18.56,"high":18.66,"low":17.85,"close":17.9,"volume":884233},
    {"date":"15/04/06","open":17.78,"high":17.94,"low":17.51,"close":17.66,"volume":605252},
    {"date":"15/04/07","open":17.62,"high":17.9,"low":17.53,"close":17.61,"volume":591988},
    {"date":"15/04/08","open":17.64,"high":17.85,"low":17.32,"close":17.36,"volume":618855},
    {"date":"15/04/09","open":17.33,"high":17.54,"low":17.1,"close":17.1,"volume":761855},
    {"date":"15/04/10","open":17.08,"high":17.36,"low":17,"close":17.05,"volume":568373},
    {"date":"15/04/13","open":17.24,"high":17.26,"low":16.81,"close":17.1,"volume":667142},
    {"date":"15/04/14","open":17.1,"high":17.89,"low":17.02,"close":17.52,"volume":870138},
    {"date":"15/04/15","open":17.6,"high":17.99,"low":17.5,"close":17.69,"volume":530456},
    {"date":"15/04/16","open":17.95,"high":18,"low":17.6,"close":17.82,"volume":548730},
    {"date":"15/04/17","open":17.75,"high":17.79,"low":17.5,"close":17.79,"volume":446373},
    {"date":"15/04/20","open":17.63,"high":17.98,"low":17.52,"close":17.93,"volume":487017},
    {"date":"15/04/21","open":17.96,"high":17.98,"low":17.71,"close":17.92,"volume":320302},
    {"date":"15/04/22","open":17.88,"high":18.33,"low":17.57,"close":18.29,"volume":644812},
    {"date":"15/04/23","open":18.29,"high":18.61,"low":18.18,"close":18.28,"volume":563879},
    {"date":"15/04/24","open":18.5,"high":18.5,"low":17.61,"close":17.75,"volume":650762},
    {"date":"15/04/27","open":17.97,"high":18.05,"low":17.45,"close":17.57,"volume":437294},
    {"date":"15/04/28","open":17.65,"high":17.79,"low":17.39,"close":17.5,"volume":224519},
    {"date":"15/04/29","open":17.68,"high":17.68,"low":17.1,"close":17.21,"volume":495706},
    {"date":"15/04/30","open":17.22,"high":17.3,"low":17,"close":17.11,"volume":391040},
    {"date":"15/05/01","open":17.11,"high":17.55,"low":16.85,"close":17.5,"volume":563075},
    {"date":"15/05/02","open":17.56,"high":17.85,"low":17.3,"close":17.4,"volume":253138},
    {"date":"15/05/05","open":17.68,"high":17.68,"low":17.09,"close":17.43,"volume":290935},
    {"date":"15/05/06","open":17.48,"high":17.48,"low":17,"close":17.04,"volume":313662},
    {"date":"15/05/07","open":17.05,"high":17.19,"low":16.92,"close":17.04,"volume":360284},
    {"date":"15/05/08","open":17.13,"high":17.21,"low":16.91,"close":17.1,"volume":297653},
    {"date":"15/05/11","open":17.16,"high":17.44,"low":17.13,"close":17.31,"volume":268504},
    {"date":"15/05/12","open":17.28,"high":17.44,"low":16.99,"close":17.24,"volume":376961},
    {"date":"15/05/13","open":17.24,"high":17.3,"low":17.06,"close":17.2,"volume":244617},
    {"date":"15/05/14","open":17.24,"high":17.25,"low":17.02,"close":17.08,"volume":252526},
    {"date":"15/05/15","open":17.06,"high":17.16,"low":16.95,"close":16.95,"volume":274783},
    {"date":"15/05/18","open":16.95,"high":17.01,"low":16.76,"close":16.87,"volume":418513},
    {"date":"15/05/19","open":16.93,"high":16.94,"low":16.6,"close":16.83,"volume":367660},
    {"date":"15/05/20","open":16.8,"high":16.9,"low":16.65,"close":16.86,"volume":297914},
    {"date":"15/05/21","open":16.9,"high":17.08,"low":16.79,"close":16.88,"volume":229346},
    {"date":"15/05/22","open":16.9,"high":17.05,"low":16.85,"close":17,"volume":253279},
    {"date":"15/05/26","open":17.03,"high":17.08,"low":16.86,"close":17.01,"volume":212640},
    {"date":"15/05/27","open":17.01,"high":17.99,"low":16.87,"close":17.75,"volume":857109},
    {"date":"15/05/28","open":17.77,"high":17.77,"low":17.44,"close":17.62,"volume":338482}
]

コードビューで次の参照を追加します。

Public NotInheritable Class MainPage
    Inherits Page
    Private dataService As DataService = DataService.GetService()
    Public Sub New()
        InitializeComponent()
    End Sub
    Public ReadOnly Property Data() As List(Of Quote)
        Get
            Return dataService.GetData()
        End Get
    End Property

End Class

<DataContract>
Public Class Quote
    <DataMember(Name:="date")>
    Public Property [Date]() As String
        Get
            Return m_Date
        End Get
        Set
            m_Date = Value
        End Set
    End Property
    Private m_Date As String

    <DataMember(Name:="high")>
    Public Property High() As Double
        Get
            Return m_High
        End Get
        Set
            m_High = Value
        End Set
    End Property
    Private m_High As Double

    <DataMember(Name:="low")>
    Public Property Low() As Double
        Get
            Return m_Low
        End Get
        Set
            m_Low = Value
        End Set
    End Property
    Private m_Low As Double

    <DataMember(Name:="open")>
    Public Property Open() As Double
        Get
            Return m_Open
        End Get
        Set
            m_Open = Value
        End Set
    End Property
    Private m_Open As Double

    <DataMember(Name:="close")>
    Public Property Close() As Double
        Get
            Return m_Close
        End Get
        Set
            m_Close = Value
        End Set
    End Property
    Private m_Close As Double

    <DataMember(Name:="volume")>
    Public Property Volume() As Double
        Get
            Return m_Volume
        End Get
        Set
            m_Volume = Value
        End Set
    End Property
    Private m_Volume As Double
End Class

public sealed partial class MainPage : Page
{
    DataService dataService = DataService.GetService();
    public MainPage()
    {
        this.InitializeComponent();
    }

    public List<Quote> Data
    {
        get
        {
            return dataService.GetData();
        }
    }

}
[DataContract]
public class Quote
{
    [DataMember(Name = "date")]
    public string Date { get; set; }

    [DataMember(Name = "high")]
    public double High { get; set; }

    [DataMember(Name = "low")]
    public double Low { get; set; }

    [DataMember(Name = "open")]
    public double Open { get; set; }

    [DataMember(Name = "close")]
    public double Close { get; set; }

    [DataMember(Name = "volume")]
    public double Volume { get; set; }
}

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