How to refresh oxyplot plot when data changes

Question

Oxyplot graphs 13 points which are derived from the 6 user input text boxes. The values in

Answer 1

The cleanest way I've found to get "sort of" auto-update is reacting to CollectionChanged on the collection that is LineSeries' ItemsSource.

In ViewModel:

ObservableCollection<DataPoint> Data { get; set; } 
    = new ObservableCollection<DataPoint>();

public PlotModel PlotModel
{
    get { return _plot_model; }
    set
    {
        _plot_model = value;
        RaisePropertyChanged(() => PlotModel);
    }
}
PlotModel _plot_model;

// Inside constructor:
Data.CollectionChanged += (a, b) => PlotModel.InvalidatePlot(true);