PSE(OPCS) Optical Printer Control System PSE(OPCS) NAME pse - pause a run script USAGE pse [-noabort] DESCRIPTION This command will pause a running script to allow users to adjust filters, f-stops, and the like. This command simply prompts the operator with a 'Hit RETURN to continue' prompt. If the -noabort argument is specified, the user will not be able to hit 'allstop' to abort the PSE command, which can be used to prevent accidental ALLSTOPs made by the operator in such scripts as LOAD and LINEUP (which pause with a device out of phase). For instance, to shoot a 12x wedge of a single projector frame, PSE can be used to pause before shooting each frame: do 12 pse cam 1 # Wedging commands The above will shoot 12x frames, prompting the operator before shooting each frame with: * PAUSE * RETURN to continue, or SPACEBAR to abort: ..allowing the operator to change filters, and hit return to shoot each frame. (With a filter wheel, of course, one doesn't need to do this) To prompt for special filters each frame, make a 'wedge.run' script: ! echo Load ND-2 ! pse cam 1 ! echo Load ND-4 ! pse cam 1 ! echo Load ND-8 ! pse cam 1 [..etc..] This way the camera operator will see a prompt for each filter to load. NOTES Whenever PSE is encountered, the keyboard's buffer is CLEARED of any previous characters to prevent accidentally typed characters from skipping several PSE commands. SEE ALSO RUN(OPCS) - execute a run script ORIGIN Gregory Ercolano, Los Feliz California 04-23-91