public static void TestTextAnnotation()
{
// the PlotView is a WPF control that's created in the .xaml code
OxyPlot.Wpf.PlotView examplePlotView = new OxyPlot.Wpf.PlotView();
// create the plot
Plot plot = new ScatterPlot(examplePlotView, new List <Datum> {
new Datum(0, 1), new Datum(2, 3)
});
plot.AddTextAnnotationToPlotArea("PEPTIDESEQUENCE", 100, -10, OxyColors.Blue);
Assert.That(plot.Model.Annotations.Count == 1);
Assert.That(((PlotTextAnnotation)plot.Model.Annotations[0]).Text == "PEPTIDESEQUENCE");
Assert.That(((PlotTextAnnotation)plot.Model.Annotations[0]).TextColor == OxyColors.Blue);
string exportPath = Path.Combine(TestContext.CurrentContext.TestDirectory, "testTextAnnotatedPdfExport.pdf");
plot.ExportToPdf(exportPath);
Assert.That(File.Exists(exportPath));
File.Delete(exportPath);
}