Arlene, This is not a VisAD problem but rather a limitation of the program. The code failing is Plain plain = new Plain(); Field sstdata = (Field) plain.open("Geo_Corrected_SST_EDR.nc"); Plain.open returns in general a DataType not a Field; in your case with this data file it returns a Tuple of FileFlatFields. -- Stuart Wier UCAR Unidata Program wier@xxxxxxxxxxxxxxxx P.O. Box 3000 http://www.unidata.ucar.edu/staff/wier Boulder, CO 80307
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