I can provide some details in that regard. The PGPLOT and GD graphics capabilities are certainly available, and come with the PDL ppm package available from the Uwinnipeg repository.
. It builds fine for me on Win32, though it's still in the development stage. I don't personally use any of this stuff, so I don't know what sort of milage is provided. All I know is that 'dmake test' (or 'nmake test', as the case may be) works fine.