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WPF Fan Chart
// WPF Chart Examples
SciChart WPF ships with hundreds of WPF Chart Examples which you can browse, play with, view the source-code and even export each WPF Chart Example to a stand-alone Visual Studio solution. All of this is possible with the new and improved SciChart WPF Examples Suite, which ships as part of the SciChart WPF SDK.
Demonstrates how to use multiple FastBandRenderableSeries to simulate a Fan Chart.
The FastBandRenderableSeries requires an XyyDataSeries, which has X,Y0,Y1 points, to display a solid band between high and low Y-value.
In this example, we overlay several Band-Series with varying opacity to simulate a Fan-chart.
Documentation Links
// Source Code
The C#/WPF source code for the WPF Fan Chart example is included below (Scroll down!).
Did you know you can also view the source code from one of the following sources as well?
- Clone the SciChart.WPF.Examples from Github.
- Or, view source and export each example to a Visual Studio project from the SciChart WPF Examples suite.
- Also the SciChart WPF Trial contains the full source for the examples (link below).
// FanChartExampleView.xaml
<UserControl x:Class="SciChart.Examples.Examples.CreateMultiseriesChart.FanChartExampleView"
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:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:ext="http://schemas.abtsoftware.co.uk/scichart/exampleExternals"
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 Source={x:Reference Name=sciChart}}" />
<s:SciChartSurface x:Name="sciChart" Padding="0" BorderThickness="0" Grid.Column="1">
<s:SciChartSurface.RenderableSeries>
<!-- Visualise the three levels of projections, e.g the Fan -->
<s:FastBandRenderableSeries x:Name="projectedVar3"
FillY1="Red"
Opacity="0.2"
Stroke="Transparent" />
<s:FastBandRenderableSeries x:Name="projectedVar2"
FillY1="Red"
Opacity="0.4"
Stroke="Transparent" />
<s:FastBandRenderableSeries x:Name="projectedVar1"
FillY1="Red"
Opacity="0.6"
Stroke="Transparent" />
<!-- Visualize the actual (known values) line -->
<s:FastLineRenderableSeries x:Name="lineSeries" Stroke="Red" />
</s:SciChartSurface.RenderableSeries>
<s:SciChartSurface.XAxis>
<s:DateTimeAxis GrowBy="0.1, 0.1" />
</s:SciChartSurface.XAxis>
<s:SciChartSurface.YAxis>
<s:NumericAxis GrowBy="0.1, 0.1" />
</s:SciChartSurface.YAxis>
</s:SciChartSurface>
</Grid>
</UserControl>
// FanChartExampleView.xaml.cs
// *************************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2018. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales: sales@scichart.com
//
// FanChartExampleView.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;
using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using SciChart.Charting.Model.DataSeries;
using SciChart.Examples.ExternalDependencies.Data;
namespace SciChart.Examples.Examples.CreateMultiseriesChart
{
/// <summary>
/// Interaction logic for FanChartExampleView.xaml
/// </summary>
public partial class FanChartExampleView : UserControl
{
public FanChartExampleView()
{
InitializeComponent();
this.Loaded += FanChartExampleViewLoaded;
}
private void FanChartExampleViewLoaded(object sender, RoutedEventArgs e)
{
// Variance data is a 2D table containing actual values and several levels of projected high, low values
IEnumerable<VarPoint> varianceData = GetVarianceData().ToArray();
// To render the Fan, we use an XyDataSeries and three band series'
var actualDataSeries = new XyDataSeries<DateTime, double>();
var var3DataSeries = new XyyDataSeries<DateTime, double>();
var var2DataSeries = new XyyDataSeries<DateTime, double>();
var var1DataSeries = new XyyDataSeries<DateTime, double>();
// Append data values from the Variance table
actualDataSeries.Append(varianceData.Select(x => x.Date), varianceData.Select(x => x.Actual));
var3DataSeries.Append(varianceData.Select(x => x.Date), varianceData.Select(x => x.VarMin), varianceData.Select(x => x.VarMax));
var2DataSeries.Append(varianceData.Select(x => x.Date), varianceData.Select(x => x.Var1), varianceData.Select(x => x.Var4));
var1DataSeries.Append(varianceData.Select(x => x.Date), varianceData.Select(x => x.Var2), varianceData.Select(x => x.Var3));
// Assign data to renderableseries
lineSeries.DataSeries = actualDataSeries;
projectedVar3.DataSeries = var3DataSeries;
projectedVar2.DataSeries = var2DataSeries;
projectedVar1.DataSeries = var1DataSeries;
sciChart.ZoomExtents();
}
// Create a table of Variance data. Each row in the table consists of
//
// DateTime, Actual (Y-Value), Projected Min, Variance 1, 2, 3, 4 and Projected Maximum
//
// DateTime Actual Min Var1 Var2 Var3 Var4 Max
// Jan-11 y0 - - - - - -
// Feb-11 y1 - - - - - -
// Mar-11 y2 - - - - - -
// Apr-11 y3 - - - - - -
// May-11 y4 - - - - - -
// Jun-11 y5 min0 var1_0 var2_0 var3_0 var4_0 max_0
// Jul-11 y6 min1 var1_1 var2_1 var3_1 var4_1 max_1
// Aug-11 y7 min2 var1_2 var2_2 var3_2 var4_2 max_2
// Dec-11 y8 min3 var1_3 var2_3 var3_3 var4_3 max_3
// Jan-12 y9 min4 var1_4 var2_4 var3_4 var4_4 max_4
private IEnumerable<VarPoint> GetVarianceData()
{
var dates = Enumerable.Range(0, 10).Select(i => new DateTime(2011, 01, 01).AddMonths(i)).ToArray();
var yValues = new RandomWalkGenerator().GetRandomWalkSeries(10).YData;
for (int i = 0; i < 10; i++)
{
double varMax = double.NaN;
double var4 = double.NaN;
double var3 = double.NaN;
double var2 = double.NaN;
double var1 = double.NaN;
double varMin = double.NaN;
if (i > 4)
{
varMax = yValues[i] + (i - 5) * 0.3;
var4 = yValues[i] + (i - 5) * 0.2;
var3 = yValues[i] + (i - 5) * 0.1;
var2 = yValues[i] - (i - 5) * 0.1;
var1 = yValues[i] - (i - 5) * 0.2;
varMin = yValues[i] - (i - 5) * 0.3;
}
yield return new VarPoint(dates[i], yValues[i], var4, var3, var2, var1, varMin, varMax);
}
}
private struct VarPoint
{
public readonly DateTime Date;
public readonly double Actual;
public readonly double VarMax;
public readonly double Var4;
public readonly double Var3;
public readonly double Var2;
public readonly double Var1;
public readonly double VarMin;
public VarPoint(DateTime date, double actual, double var4, double var3, double var2, double var1, double varMin, double varMax) : this()
{
Date = date;
Actual = actual;
Var4 = var4;
Var3 = var3;
Var2 = var2;
Var1 = var1;
VarMin = varMin;
VarMax = varMax;
}
}
}
}