Display real time data on Intensity Graph

[rajeeshp]

I am using measurement studio 2015 WPF version. My requirement is to display real time data on a intensity graph . I used uint[,] to store the data and set datasource through binding. When I refresh the data , chart is flickering always .

1. How to avoid flickering effect while updating new data ?

2. what is the best way to display live data on a IntensityGraph ?

Thanks,

Rajeesh P

[phansen · Accepted solution]

Could you provide a sample application that reproduces the issue? I was not able to reproduce the issue using the code below, and a simple DataSource="{Binding}" on the graph in XAML. I also tried using a single array and calling Refresh, but did not see any flickering.

public partial class MainWindow : Window {

    private readonly Random _random;
    private readonly DispatcherTimer _timer;

    public MainWindow( ) {
        InitializeComponent( );

        _random = new Random( );
        _timer = new DispatcherTimer( TimeSpan.FromSeconds( 0.1 ), DispatcherPriority.Normal, OnTimerTick, Dispatcher );
    }

    private void OnTimerTick( object sender, EventArgs e ) {
        const int Rows = 101;
        const int Columns = 101;

        var data = new uint[Rows, Columns];
        for( int i = 0; i < Rows; ++i )
            for( int j = 0; j < Rows; ++j )
                data[i, j] = (uint)_random.Next( 0, 101 );

        _graph.DataContext = data;
    }

}