Producing a Hard-Copy Contour Map Annotated with Celestial Coordinates

If the output were required on an image display device, the commands would be just KAPPA:TURBOCONT followed by SKYGRID. Complications arise when a hard-copy device is used because the two applications produce two separate pages of output. However, all is not lost if you are willing to use a POSTSCRIPT printer. In this case, the PSMERGE facility (see SUN/164) can be used to stack together the two separate POSTSCRIPT output files generated by the two applications. This operation has been packaged up into a procedure called PSCONT which is contained within IRAS90. It provides only limited facilities, but can be used as the basis for procedures written by the user.