Creating graphs with the Silverlight Toolkit
As i wrote already: In a chart the elements on the X-axis are usually numbers or dates, and the elements on the Y-axis are usually doubles. We can define such a combination as following
public class Point<T>
{
public T X { get; set; }
public double Y { get; set; }
}
Here is a little helper function for creating line series that are used by the Silverlight Toolkit:
public LineSeries Create<T>(string title, Series<T> series, Func<t, double> f) where T : IComparable<T>
{
var points = series.Select(x => new Point<T> { X = x, Y = f(x) });
var lineSeries = new LineSeries
{
Title = title,
ItemsSource = points,
IndependentValuePath = "X",
DependentValuePath = "Y"
};
return lineSeries;
}
Given all this infrastructure we can easily draw the graph of a function:
public MainPage()
{
InitializeComponent();
var series = 0.To(100);
Func<int, double> multiplyByTwo = x => 2 * x;
Chart1.Series.Add(Create("2x", series, multiplyByTwo));
Func<int, double> multiplyByThree = x => 3 * x;
Chart1.Series.Add(Create("x/2", series, multiplyByThree));
}
Here is how the result looks like (too much data on the chart)
