ScatterLineSeries

Overview

The ScatterLineSeries are represented on the chart as data points connected with straight line segments. The ScatterLineSeries inherit from the ScatterPointSeries class and also require both axes of the chart to be of type NumericalAxis.

Features

ScatterLineSeries provide the following properties to change their style:

  • Stroke (Color): changes the color used to draw lines.
  • StrokeThickness (double): changes the width of the lines.

Example

Here is an example of how to create a basic RadCartesianChart with ScatterLineSeries in xaml:

<telerikChart:RadCartesianChart>
  <telerikChart:RadCartesianChart.BindingContext>
    <viewMoedls:ScatterViewModel/>
  </telerikChart:RadCartesianChart.BindingContext>
  <telerikChart:RadCartesianChart.HorizontalAxis>
    <telerikChart:NumericalAxis/>
  </telerikChart:RadCartesianChart.HorizontalAxis>
  <telerikChart:RadCartesianChart.VerticalAxis>
    <telerikChart:NumericalAxis/>
  </telerikChart:RadCartesianChart.VerticalAxis>
  <telerikChart:RadCartesianChart.Series>
    <telerikChart:ScatterLineSeries ItemsSource="{Binding ScatterData}">
      <telerikChart:ScatterLineSeries.XValueBinding>
        <telerikChart:PropertyNameDataPointBinding PropertyName="XValue"/>
      </telerikChart:ScatterLineSeries.XValueBinding>
      <telerikChart:ScatterLineSeries.YValueBinding>
        <telerikChart:PropertyNameDataPointBinding PropertyName="YValue"/>
      </telerikChart:ScatterLineSeries.YValueBinding>
    </telerikChart:ScatterLineSeries>
  </telerikChart:RadCartesianChart.Series>
</telerikChart:RadCartesianChart>

Where:

xmlns:telerikChart="clr-namespace:Telerik.XamarinForms.Chart;assembly=Telerik.XamarinForms.Chart"

Here is an example of how to create a RadCartesianChart with ScatterLineSeries in code:

var chart = new RadCartesianChart
{
    HorizontalAxis = new NumericalAxis(),
    VerticalAxis = new NumericalAxis(),
    BindingContext = new ScatterViewModel()
};

var series = new ScatterLineSeries();
series.SetBinding(ScatterLineSeries.ItemsSourceProperty, new Binding("ScatterData"));   
series.XValueBinding = new PropertyNameDataPointBinding("XValue");
series.YValueBinding = new PropertyNameDataPointBinding("YValue");

Here is the sample data:

public class NumericalData
{
    public double XValue { get; set; }
    public double YValue { get; set; }
}

public class ScatterViewModel
{
    private static Random random = new Random();

    public ScatterViewModel()
    {
        this.ScatterData = GetScatterData(10, 0.1, 0.1, this.GenerateX, this.GenerateY);
    }

    public ObservableCollection<NumericalData> ScatterData { get; set; }

    public static ObservableCollection<NumericalData> GetScatterData(int dataCount, double xDispersion, double yDispersion, Func<int, double> xFunc, Func<int, double> yFunc)
    {
        var data = new ObservableCollection<NumericalData>();
        for (int i = 0; i < dataCount; i++)
        {
            data.Add(new NumericalData() { XValue = xFunc(i) + xDispersion * random.NextDouble(), YValue = yFunc(i) + yDispersion * random.NextDouble() });
        }

        return data;
    }

    private double GenerateX(int i)
    {
        return 1 + Math.Sin(i);
    }

    private double GenerateY(int i)
    {
        return i;
    }
}

Basic ScatterLineSeries

Here we make some customization:

var series = new ScatterLineSeries { Stroke = new Color(0.6, 0.6, 0.9), StrokeThickness = 5 };