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WPF Chart Datapoint Markers
// 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 the FastLineRenderableSeries and the Data-Point Markers API to apply fast bitmap-rendered data point markers to a line series.
The Point-markers are created using FrameworkElements, but applied to the line as a bitmap, so it’s possible to render tens or hundreds of thousands of point-markers using this method.
Documentation Links
// Source Code
The C#/WPF source code for the WPF Chart Datapoint Markers 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).
// DatapointMarkersView.xaml
<UserControl x:Class="SciChart.Examples.Examples.AnnotateAChart.DatapointMarkersView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:sciChart="http://schemas.abtsoftware.co.uk/scichart"
xmlns:ext="http://schemas.abtsoftware.co.uk/scichart/exampleExternals"
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 Source={x:Reference Name=sciChart}}" />
<sciChart:SciChartSurface x:Name="sciChart" Grid.Column="1" Padding="0" BorderThickness="0">
<!-- Declare Axes -->
<sciChart:SciChartSurface.XAxis>
<sciChart:NumericAxis DrawMajorBands="True" GrowBy="0.1, 0.1"/>
</sciChart:SciChartSurface.XAxis>
<sciChart:SciChartSurface.YAxis>
<sciChart:NumericAxis DrawMajorBands="True" GrowBy="0.2, 0.2"/>
</sciChart:SciChartSurface.YAxis>
<!-- Declare RenderableSeries -->
<sciChart:SciChartSurface.RenderableSeries>
<!-- Declare first line series with a PointMarker control template -->
<sciChart:FastLineRenderableSeries Stroke="DarkSlateGray">
<sciChart:FastLineRenderableSeries.PointMarker>
<sciChart:EllipsePointMarker Width="7" Height="7" Fill="Lavender"/>
</sciChart:FastLineRenderableSeries.PointMarker>
</sciChart:FastLineRenderableSeries>
<!-- Declare second line series with a PointMarker control template -->
<sciChart:FastLineRenderableSeries Stroke="RosyBrown">
<sciChart:FastLineRenderableSeries.PointMarker>
<sciChart:EllipsePointMarker Width="7" Height="7" Fill="Lavender"/>
</sciChart:FastLineRenderableSeries.PointMarker>
</sciChart:FastLineRenderableSeries>
</sciChart:SciChartSurface.RenderableSeries>
</sciChart:SciChartSurface>
</Grid>
</UserControl>
// DatapointMarkersView.xaml.cs
// *************************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2018. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales: sales@scichart.com
//
// DatapointMarkersView.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.Windows;
using System.Windows.Controls;
using SciChart.Charting.Model.DataSeries;
using SciChart.Data.Model;
namespace SciChart.Examples.Examples.AnnotateAChart
{
public partial class DatapointMarkersView : UserControl
{
public DatapointMarkersView()
{
InitializeComponent();
Loaded += DatapointMarkersViewLoaded;
}
private void DatapointMarkersViewLoaded(object sender, RoutedEventArgs e)
{
var seriesA = new XyDataSeries<double, double>();
var seriesB = new XyDataSeries<double, double>();
seriesA.SeriesName = "Sinewave A";
seriesB.SeriesName = "Sinewave B";
double count = 100.0;
double k = 2 * Math.PI / 30.0;
for (int i = 0; i < (int)count; i++)
{
var phi = k * i;
seriesA.Append(i, (1.0 + i / count) * Math.Sin(phi));
seriesB.Append(i, (0.5 + i / count) * Math.Sin(phi));
}
sciChart.RenderableSeries[0].DataSeries = seriesA;
sciChart.RenderableSeries[1].DataSeries = seriesB;
}
}
}