I used to be able to successfully do this using the hp2ps command. Since then there has been a lot of change in the people that control the Unix machines here and the program was lost.
They recently installed a version that calls an Alun Jones DrawHPGL program. The problem here is that it generates errors. Specifically, the spots in the spot diagrams do not show up. What I would like is a version of hp2ps that supports all of the Oslo outputs.