Adding multiple instances of a LineSeries to OxyPlot

Hello,

I am trying to add multiple LineSeries to my OxyPlot graph. I am using WPF so I decided to switch to OxyPlot. I am not used to the way OxyPlot works as I am used to using Winforms chart controls so please bare with me. I have read the example project code for plotting multiple series on a PlotModel, but this does not seem to be helping me.

My approach so far:

I am taking a c# List array and adding a new copy of the LineSeries that holds new data to be plotted. My code:

        // Function to plot data
        private void plotData(double numWeeks, double startingSS)
        {

            // Initialize new Salt Split class for acess to data variables
            Salt_Split_Builder calcSS = new Salt_Split_Builder();
            calcSS.compute(numWeeks, startingSS, maxDegSS);

            // Create the OxyPlot graph for Salt Split
            OxyPlot.Wpf.PlotView plot = new OxyPlot.Wpf.PlotView();
            
            var model = new PlotModel();

            // Add Chart Title
            model.Title = "Salt Split Degradation";

            // Create new Line Series
            LineSeries linePoints = new LineSeries() { StrokeThickness = 1, MarkerSize = 1, Title = numWeeks.ToString() + " weeks" };


            // Add each point to the new series
            foreach (var point in calcSS.saltSplitCurve)
            {
                DataPoint XYpoint = new DataPoint();
                XYpoint = new DataPoint(point.Key, point.Value * 100);
                linePoints.Format("%", XYpoint.Y);
                linePoints.Points.Add(XYpoint);
            }

            listPointAray.Add(linePoints);


            // Define X-Axis
            var Xaxis = new OxyPlot.Axes.LinearAxis();
            Xaxis.Maximum = numWeeks;
            Xaxis.Minimum = 0;
            Xaxis.Position = OxyPlot.Axes.AxisPosition.Bottom;
            Xaxis.Title = "Number of Weeks";
            model.Axes.Add(Xaxis);

            //Define Y-Axis
            var Yaxis = new OxyPlot.Axes.LinearAxis();
            Yaxis.MajorStep = 15;
            Yaxis.Maximum = calcSS.saltSplitCurve.Last().Value * 100;
            Yaxis.MaximumPadding = 0;
            Yaxis.Minimum = 0;
            Yaxis.MinimumPadding = 0;
            Yaxis.MinorStep = 5;
            Yaxis.Title = "Percent Degradation";
            model.Axes.Add(Yaxis);

            // Add Each series to the
            foreach (var series in listPointAray)
            {
                LineSeries newpoints = new LineSeries();
                newpoints = linePoints;
                model.Series.Add(newpoints);
            }


            // Add the plot to the window
            plot.Model = model;
            SaltSplitChartGrid.Children.Add(plot);
            
        }

My code works the first time I press my "Graph Data" button, but fails on consecutive attempts with the following error:

The element cannot be added, it already belongs to a Plot Model

The following plot is the type of plot I would like to produce (it worked fine using WinForms Chart control):




I would like a new line with a new color to be plotted each time I run the method.

Anyone with an idea?

...bump

In my opinion you are doing it wrong, try to follow any example where the model is linked using "Binding". That way you only need to create a LineSeries and then to add it to the Series collection of the PlotModel.
Note that you will need to update the plot using MyModel.RefreshPlot(true); after that.

Good luck!

Thanks, I'll try to create a DataBinding so I don't have to do all the work from code-Behind. Maybe things will work better, but won't I still have the issue of adding multiple LineSeries to the same PlotModel?

For the record, I answered my own question. The answer can be found here:

"http://stackoverflow.com/questions/24938689/how-to-plot-multiple-lineseries-on-an-oxyplot-chart/24942582#24942582"