Using a signal with only one datapoint will not show up this single point:

WpfPlot1.Plot.AddSignal(new double[] { 1 }, 1, System.Drawing.Color.Blue);

If I add a second point, the two points are showing up like expected.

WpfPlot1.Plot.AddSignal(new double[] { 1, 2 }, 1, System.Drawing.Color.Blue);

Is this the desired bahaviour? For me it would be nice to plot the single point as well here.