Generates a digital Band Series chart in code, by using a FastBandRenderableSeries with the IsDigitalLine property set to true. The band series requires an XyyDataSeries, which contains one X-point and two Y-points.

Dual lines are drawn by Stroke, StrokeY1 and shaded bands are drawn using FillY1 and Fill, depending on whether Y1 is greater than Y2.

Tip!

If you have data where Y1 is greater than Y2 always, you’ll get an envelope effect. Great for rendering confidence intervals, error margins or Bollinger Bands! Documentation links are included below.

• FastBandRenderableSeries Type
• XyyDataSeries Type
• What is a RenderableSeries and what is a DataSeries?
• RenderableSeries API

// DigitalBandSeriesChartExampleView.xaml

<UserControl x:Class="SciChart.Examples.Examples.CreateSimpleChart.DigitalBandSeriesChartExampleView"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:s="http://schemas.abtsoftware.co.uk/scichart"
             xmlns:ext="http://schemas.abtsoftware.co.uk/scichart/exampleExternals"
             Loaded="DigitalBandSeriesChartExampleView_OnLoaded"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             d:DesignHeight="400"
             d:DesignWidth="600"
             mc:Ignorable="d">

    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto" />
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>

        <!-- The SciChartInteractionToolbar adds zoom, pan, zoom extents and rotate functionality -->
        <!-- to the chart and is included for example purposes. -->
        <!-- If you wish to know how to zoom and pan a chart then do a search for Zoom Pan in the Examples suite! -->
        <ext:SciChartInteractionToolbar TargetSurface="{Binding ElementName=sciChart}" />

        <!--  Create the chart surface  -->
        <s:SciChartSurface Name="sciChart"
                           Grid.Column="1"
                           Padding="0"
                           BorderThickness="0">

            <!--  Declare RenderableSeries  -->
            <s:SciChartSurface.RenderableSeries>
                <s:FastBandRenderableSeries x:Name="bandRenderSeries"
                                            Fill="#33279B27"
                                            FillY1="#33FF1919"
                                            IsDigitalLine="True"
                                            StrokeY1="#FF279B27"
                                            Stroke="#FFFF1919" />
            </s:SciChartSurface.RenderableSeries>

            <!--  Create an X Axis  -->
            <s:SciChartSurface.XAxis>
                <!--  Note, initial VisibleRange is set for display purposes only. Leave this unset to autorange once on startup  -->
                <s:NumericAxis x:Name="xAxis" VisibleRange="1.1, 2.7" DrawMajorBands="True" />
            </s:SciChartSurface.XAxis>

            <!--  Create a Y Axis with GrowBy  -->
            <s:SciChartSurface.YAxis>
                <s:NumericAxis DrawMajorBands="True">
                    <s:NumericAxis.GrowBy>
                        <s:DoubleRange Max="0.1" Min="0.1" />
                    </s:NumericAxis.GrowBy>
                </s:NumericAxis>
            </s:SciChartSurface.YAxis>

        </s:SciChartSurface>

    </Grid>
</UserControl>

// DigitalBandSeriesChartExampleView.xaml.cs

// *************************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2017. All rights reserved.
//  
// Web: http://www.scichart.com
//   Support: support@scichart.com
//   Sales:   sales@scichart.com
// 
// DigitalBandSeriesChartExampleView.xaml.cs is part of the SCICHART® Examples. Permission is hereby granted
// to modify, create derivative works, distribute and publish any part of this source
// code whether for commercial, private or personal use. 
// 
// The SCICHART® examples are distributed in the hope that they will be useful, but
// without any warranty. It is provided "AS IS" without warranty of any kind, either
// expressed or implied. 
// *************************************************************************************
using System.Windows;
using System.Windows.Controls;
using SciChart.Charting.Model.DataSeries;
using SciChart.Examples.ExternalDependencies.Data;

namespace SciChart.Examples.Examples.CreateSimpleChart
{
    /// <summary>
    /// Interaction logic for BandSeriesChartExampleView.xaml
    /// </summary>
    public partial class DigitalBandSeriesChartExampleView : UserControl
    {
        public DigitalBandSeriesChartExampleView()
        {
            InitializeComponent();
        }

        private void DigitalBandSeriesChartExampleView_OnLoaded(object sender, RoutedEventArgs e)
        {
            // Add a data series which handles X-Y0-Y1 data
            var dataSeries = new XyyDataSeries<double, double>();

            // Get some reference data to display
            var data = DataManager.Instance.GetDampedSinewave(1.0, 0.01, 1000);
            var moreData = DataManager.Instance.GetDampedSinewave(1.0, 0.005, 1000, 12);

            // Append data to series. SciChart automatically redraws
            dataSeries.Append(
                data.XData,
                data.YData, 
                moreData.YData);

            bandRenderSeries.DataSeries = dataSeries;
        }
    }
}

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