Output user interface: the GREG package

Besides running messages, generated by IMAGER through the MESSAGE facility of SIC, IMAGER has advanced visualization tools. Graphics display in IMAGER are done using the GREG package. It allows multi-window displays, with cursor interaction, and publication quality plots in various format (PostScript, PDF, PNG). Please refer to the GreG documentation for more information.

When only the visualisation is needed, the user can select the VIEWER program instead of the full IMAGER package.