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The Display Menu

The display menu allows the user to choose between lookup tables and to change the contrast of the display. There are two lookup tables, a colour table and a greyscale. When driven from the Mouse interface, the chosen table always covers a range between 0 and , where n is in the range 1 to 16. However the display wraps around, so the full range of allowed data values (0 to 65535) is covered by wraps of the lookup table.

The following options can be selected by placing the cursor on the option name on the display menu and pressing :--

• GREY - Selects the Greyscale lookup table and leaves the user in the Display menu.
• COLOUR - Selects the Colour lookup table and leaves the user in the Display menu.
• REVERSE - Reverses the lookup table and leaves the user in the Display menu.
• SHIFT - After selecting this option with , pressing again increases the contrast of the display, i.e. reduces the range that one wrap of the lookup table covers, by a factor of two. decreases the contrast of the display, i.e. increases the range that one wrap of the lookup table covers, by a factor two. returns the user to the Display menu, leaving the lookup table as it was last set.
• NORMAL -