Dear Dr. Yang, Would it be possible to upload your data to http://motherlode.ucar.edu/repository/alias/idvupload so that we may further examine this problem? Please let us know when the data have been uploaded. Best Wishes, Unidata IDV Support > Dear Support, > > I am plotting the 3D flow trajectory from WRF output. I followed the > instruction on following webpage, > > http://www.unidata.ucar.edu/software/idv/docs/workshop/datadisplays/wrf/InteractiveWRFDerivedData.html > > > The animation on that webpage shows the trajectories start at a lower > level, and then develop to higher levels, but what I have is the > trajectories start at all levels, no matter what level I choose. > > What I do is: Formulas->Grids->Create 3D Flow Trajectory->Trajectory > Colored By Parameter, and then choose u, v, w, and pressure as s and s0. > I tried to use the level=1, level=all or level=several levels, it seems > not much difference. I use one time (start time) and one level (start > level) for s0. It would be so much appreciated if you can provide me any > suggestion. > > BTW, is that possible to plot two or three main streamlines for such as > a hurricane? > > Regards, > Huiyi > > Ticket Details =================== Ticket ID: QOX-659454 Department: Support IDV Priority: Normal Status: Open
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