UPDATE

Updates pupil positions, index data, paraxial constants, clear semi-diameter or semi-diameters, maximum field normalization values, solves, non-sequential objects, and other data required for both sequential and non-sequential ray tracing.

The UPDATE keyword MUST be used before tracing or evaluating a system if the prescription data, such as surface type, radii, thicknesses, system apertures, wavelengths, or non-sequential object types or parameters, have been altered since the last UPDATE.

If the UPDATE command is followed by the keyword "ALL", then all open windows, except ZPL macro windows, will be updated as well. If the UPDATE command is followed by an expression which evaluates to an integer corresponding to an open window, then the specified window is updated, as long as it is not the window of the macro currently executing. If UPDATE is followed by EDITORS, any open spreadsheet editors will be refreshed to show recent changes in the lens data. If UPDATE is followed by the keyword MACROS, then all open ZPL macro windows other than the calling window are updated.

Syntax:

UPDATE 
UPDATE ALL 
UPDATE n
UPDATE EDITORS 
UPDATE MACROS

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