## Preview Plots

Commands for some observing modes, e.g., otfmap, automatically generate “preview” plots, see Figure 3.

The range of mapping offsets for these plots can be set with the usual GREG command limits, e.g., enter at the prompt PAKO > :

    DEVICE IMAGE W
    LIMITS 500 -500 -500 500
    SET BOX MATCH
    BOX

Similarly, you can use other commands from GREG to change the color of the plotting “pens” or background of the window.

Figure 3: Screen shot of the PAKO preview plot.