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Hi- > Full Name: Hyo-Kyung Joe Lee > Email Address: address@hidden > Organization: The HDF Group > Package Version: 2.7u2 build date:2009-08-26 16:33 UTC > Operating System: Windows XP > Hardware: Java: home: C:\Program Files\IDV_2.7u2\jre version: 1.6.0_13 > j3d:1.5.2 fcs (build4) > Description of problem: For the TotO3_D dataset from the OPeNDAP URL, > > http://eoszoo.hdfgroup.uiuc.edu:8887/opendap/data/HDF4/HDF-EOS2/AQUA/AIRS/Grid/AIRS.2002.08.24.L3.RetStd_H008.v4.0.21.0.G06104133343.hdf > > the IDV 2.7 result looks quite different from the result of IDV 2.6. I've > attached the output of IDV 2.6 for comparison. > > Can anyone explain why IDV 2.7 behaves differently for the same dataset? In IDV 2.7, Fast Rendering is turned on by default to improve performance. That does not account for projection seams. In this case it shows up as bad rendering west of the dateline. If you use the Edit->Properties menu of the display control, you can turn off Fast Rendering and the 2.7 display will look like the 2.6 display. You can set Fast Rendering off for all displays using the Edit->Preferences menu in the Main Menu. It's under the General tab. For more information on Fast Rendering, see: http://www.unidata.ucar.edu/software/idv/docs/userguide/misc/PerformanceTuning.html#fastrender Don Murray Ticket Details =================== Ticket ID: VVT-842114 Department: Support IDV Priority: Normal Status: Open