Description Retrieves the focal length of a specific mirror from the associated FRED document.
Syntax fl = GetMirrorFocalLen ( n )
Parameters fl (Double) Returns the focal length of the mirror.
n As Long Node number of the mirror.
Remarks This function retrieves the focal length of a specific mirror from the associated FRED document. If there is a problem the function sets an error and returns 0.
See Also Examples
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