I have to code a simple control in .Net that draws geometry that looks like following image and the geometry doesn\'t get any more complex than shown in this image, i.e. it
While WPF probably does have drawing capabilities, it is really a completely different UI toolkit than WinForms. If you are planning on porting your app to WPF eventually, I could see drawing your image using it, but otherwise I don't really see why you'd want to introduce WPF just to draw one image. That seems like overkill to me.
You can find out more about WPF at MSDN or WindowsClient.net.