Hello again. I've managed to make polar plot and underneath it I've placed image using image annotations.
But now a new problem arises, and that is how to resize image to fit in plot area?
Do you guys have some ideas?

Some of my code:

imgScanMap = resizeImage(imgScanMap, new Size(Convert.ToInt32(_plotModel.PlotArea.Width), Convert.ToInt32(_plotModel.PlotArea.Height)));
OxyImage oxyImg = new OxyImage(OxyPlotter.ImageToByte2(imgScanMap));
ImageAnnotation imgA = new ImageAnnotation(oxyImg, 0, 1, HorizontalAlignment.Left, VerticalAlignment.Bottom);
imgA.Layer = AnnotationLayer.BelowAxes;
_plotModel.Annotations.Add(imgA);