How to Build a Custom Formatted Label with WPF

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Collections.ObjectModel;


namespace GaugeFormatter
{
    /// <summary>
    /// Interaction logic for Window1.xaml
    /// </summary>

    public partial class Window1 : System.Windows.Window
    {

        public Window1()
        {
            InitializeComponent();
        }

        void ReDo(object s, RoutedEventArgs e)
        {
            ObjectDataProvider odp = Resources["data"] as ObjectDataProvider;
            ((DataSource)odp.Data).Init();
        }

    }
    class DataConverter:IValueConverter
    {
        #region IValueConverter Members

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            int val = (int)value;
            int max = int.Parse(parameter.ToString());
            return new Point(val == 0 ? 0 : ((double)val / (double)max), 0.5);
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new Exception("The method or operation is not implemented.");
        }

        #endregion
    }
    class DataSource : ObservableCollection<int>
    {
        Random rnd = new Random();
        public DataSource()
        {
            Init();
        }

        public DataSource(int max)
        {
            Init(max);
        }

        public void Init()
        {
            Init(1000);
        }

        public void Init(int max)
        {
            this.Clear();
            for (int i = 0; i < 10; i++)
            {
                this.Add(rnd.Next(max));
            }
        }
    }
}