Operational Commands

The smallest number of commands are the operational commands, which are the commands that carry out some action. It is easiest to remember these by general functional area, as shown in the tables below. It is also possible to learn some of the operational commands by using the history buffer. When you set up a command from the menu, the command that you execute is placed in the history buffer and can be accessed by clicking on the combo box control at the right hand end of the command line.

If you use the history buffer, you should be aware that some menu commands construct intermediate commands that in turn execute the built-in OSLO commands, so that what you find in the history buffer may not be what you are looking for. Also, please note that the contents of the history buffer depend on whether the Cmd_history_aliases (chal) preference is on or off. If it is on, the short forms of commands will be placed in the buffer; if it is off, the long forms will appear.

The following tables list some of the more common commands. More commands are shown in the Program Reference manual, and the Help system contains almost all of the commands that you would want to execute directly (some hidden commands perform special functions, and are usually modular). Command arguments are not shown; you can use the Help argument (?) to learn these, or read the command definition in the Help system.

Cmd	Action
dir	List directory
chd	Change directory
open	Open a file
save	Save a file
erase	Delete a file
gwo	Open a graphics window
twr	Reset (clear) the text window
gwr	Reset (clear) the graphics window
twp	Print the text window
gwp	Print the graphics window
prt	Print numbers or strings
ewo	Open the text edit window
stp	Set a preference
exit	Quit OSLO

Cmd	Action
rtg	Show radius, thickness, glass, and aperture data
spe	Show special data
opc	Show operating conditions
wav	Show wavelengths
cfg	Show configuration data
var	Show variables
rst	Show ray set
ope	Show (and compute) operands
drl	draw the lens
drr	draw user-specified rays
ddr	draw default rays

Cmd	Action
pxc	Paraxial constants
pxt	Paraxial ray trace
sei	Seidel (third-order) aberrations
fif	Fifth-order aberrations
sop	Set object point
tra	Trace single ray
trf	Trace a ray fan
plr	Plot ray-intercept curves
plf	Plot field curves
pld	Plot distortion
spd	Compute spot diagram
prs	Print spot diagram
pls	Plot spot diagram
mtf	Modulation transfer function
plm	Plot modulation transfer function
psf	Point spread function
plp	Plot point spread function
red	Radial energy distribution
ple	Plot radial energy distribution
wvf	Wavefront statistics
plw	Plot wavefront map

Cmd	Action
ide	Interactive design
ite	Iterate
opg	Generate error function (PRO & SIX only)
auf	Autofocus
asa	Adaptive Simulated Annealing (SIX only)