Using OxyPlot to render png images from a PlotModel

Question

From the documentation on the OxyPlot Documentation Website , it says to use the PngExporter class. This class no longer exists in OxyPlot, but rather there are classes called PngEncoder and PngDecoder . I suspect the equivalent method to PngExporter.Export is PngEncoder.Encode however it asks for a 2d array of OxyColor called "pixels", but I do not know where to get this data from. NOTE: Exporting to SVG or PDF works but this form is useless.

Problem: I need to export PNGs from code only of a PlotModel in OxyPlot but documentation is outdated.

This is the code I have been told to use:

 using (var stream = File.Create(fileName))
    {
        var pngExporter = new PngExporter();
        pngExporter.Export(plotModel, stream, 600, 400, Brushes.White);
    }

Answer 1

To add to Jamie's answer, if you want to export a png from say a class library, you can do something like this with STAThread:

        var thread = new Thread(() =>
        {
            PngExporter.Export(plotModel, @"C:\file.png", 600, 400, OxyColors.White);
        });
        thread.SetApartmentState(ApartmentState.STA);
        thread.Start();
        thread.Join();

This is using the latest pre-release v1.0.0-unstable2100.

Answer 2

Using the [GitHub Oxyplot] files to build the librarys, both oxyplot and oxyplot.wpf , and then use these libraries instead. Note any method which exports a PNG must be have the STAThread tag.