Hi Sangyeol,

I think this is because the system on your coworker’s computer by default is non-sequential.  The ZOS-API has a check to see if TheSystem is sequential, non-sequential or both.  If TheSystem is non-sequential, even if it’s a new system (this comes from either the default Lens.ZMX file or the Setup > Project Preferences > General > Change Startup Defaults button), then sequential analysis will return null.  

Can you try calling the following command before you open up the analysis:

TheSystem.MakeSequential();

If this doesn’t work, can you upload more of your code?

Hi MichaelH,

Making theSystem sequential sounds great. 

Unfortunately, it didn’t work to get NULL when GetDataSeries is called. 

Again, it’s working nicely in my computer, but NULL from another computer.

I am posting more code below.

Thanks.

internal static double[,] CalculateFftMtf(IOpticalSystem theSystem, int szSample, int maxFreq)

        {

            IA_ winFftMtf = theSystem.Analyses.New_FftMtf();

         

            IAS_FftMtf settings = winFftMtf.GetSettings() as IAS_FftMtf;

         

            settings.SampleSize = (ZOSAPI.Analysis.SampleSizes)szSample;

         

            settings.MaximumFrequency = maxFreq;

         

            winFftMtf.ApplyAndWaitForCompletion();

         

            IAR_ results = winFftMtf.GetResults();

         

            IAR_DataSeries dataSeries = results.GetDataSeries(1);

            if (dataSeries == null)

                return null;

…..

}