Description Retrieves a singlet lens from the associated FRED document.
Syntax GetLens n, entity, lens
Parameters n As Long Node number of the lens.
entity As T_ENTITY Structure containing the basic entity data for the lens.
lens as T_LENS Structure containing the optical data specific to the lens.
Remarks This subroutine retrieves a singlet lens from the associated FRED document. If there is a problem the subroutine sets an error and returns without modifying the parameters.
See Also Examples
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