I am currently studiyng the project at: http://gnuwin32.sourceforge.net/
for graphics output I think that the package hp2xx is very interesting, look at http://gnuwin32.sourceforge.net/packages/hp2xx.htm
working with the HPGL language you can generate scientific plots and technical drawing in several raster and vector graphic formats (eps and PDF).
By now I am experimenting with Delphi, but if all works fine I'll soon port all that on FPC/Lazarus...
But gnuwin32 is not only for graphics, it's a a lot of very interesting software for win32 that should be easily interfaced with FPC/Lazarus.
I hope this could be useful for you and others here, tiziano
