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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
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> Hi Yuan - > > Yes, this does the trick. Thanks. There is a more straightforward way to > edit the alias - right click on the param, and you are guided to add the > correct term to the alias list. Great, I know you are a more advanced users. > > However, I have some problems with the plan views. > 1. The vector plot uses a colour scale (for speed) although it offers > the possibility to change the solid colour (without effect, of course). > I miss the possibility of having speed-proportional vectors in solid colour. I need to think about this when I back in office next week, changing to a solid color layout model is easy but I better check with Don first. > 2. Wind barbs are not working. This should be the same as the vector plot. Could you double check? > 3. Streamlines are not working, though I suspect that there might be a > basic problem with generating them from this type of data. I think this doesn't make sense to plot stream line in this kind of dataset. > Yuan > cheers, HP > > On 2010-06-02 01:50, Unidata IDV Support wrote: > >> Full Name: HansPeter Roesli > >> Email Address: address@hidden > >> Organization: EUMETSAT > >> Package Version: 2.9 build date:@DATE@ > >> Operating System: Windows Vista > >> Hardware: Java: home: C:\Program Files\IDV_2.9\jre version: 1.6.0_20 > >> j3d:1.5.2 fcs (build4) > >> Description of problem: Hi - > >> > >> I have an nc files of ASCAT wind data downloaded from > >> > >> ftp://podaac.jpl.nasa.gov/pub/ocean_wind/ascat/preview/L2/12km/ > >> > >> A sample is attached. The files decodes fine in IDL and among other > >> parameters offers - as expected - wind speed and wind direction at 10m. > >> I would like to plot flow vectors from these param couples, but cannot > >> find any ready-made formula that would calculate/display vectors. Am I > >> overlooking something here. I would have expceted a Derived list in the > >> Fields widget that would offer this option, but there is no list > >> appearing. > >> > > HP, > > The naming in this dataset is the cause of the derived list not > > showing. If you want to > > do the flow vector plan view, the easy way is to edit the alias table in > > the IDV. You can > > go to Tools> Parameter Alias Eidtor, and add the model_speed and model_dir > > to the Users alias > > table, Name as speed, Description as wind speed, and Alias as model_speed. > > Exit the IDV and > > restart it, you should now see the Derived list and the formula of flow > > vector. Let me know if you need further help. > > > > Yuan > > > >> HP > >> > >> > > > > Ticket Details > > =================== > > Ticket ID: CFO-475744 > > Department: Support IDV > > Priority: Normal > > Status: Open > > > > > > > > Ticket Details =================== Ticket ID: CFO-475744 Department: Support IDV Priority: Normal Status: Open