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[IDV #LJG-859874]: Vector Plot from Coards

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  • Subject: [IDV #LJG-859874]: Vector Plot from Coards
  • Date: Thu, 18 Aug 2011 13:08:17 -0600
> Full Name: Leif Rasmuson
> Email Address: address@hidden
> Organization: University of Oregon
> Package Version: 3.0b1 build date:2011-07-01 17:24 UTC
> Operating System: Mac OS X
> Hardware: Java: home: 
> /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home version: 
> 1.6.0_26 j3d:1.5.2 fcs (build4)
> Description of problem: Hi,
> 
> So I am working with a Netcdf file provided by Mercator Ocean Products, see 
> attached, it has current northward and current eastward velocities and I am 
> hoping to create a vector plot of these two values.  I am unable to figure 
> our how I go about doing this.  When I add the data and then look at the 
> field selector the only options are for me to use contour's which do not 
> provide what I am attempting to create.
> 
> Thank you very much for your time,
> Leif Rasmuson
> 
> 
Hi Leif,
       There are two ways to do this vector plot, first way, you let the IDV 
know northward is v and eastward is u, to do this, you can right click on the 
variable name under Fields, and add alias as U component and V component for 
each variable, after that, you will see the the vector plan view display option 
in the list. The second way is to use the grid formula, Formula > Grid > Make 
flow vector from u and v, and then create the display, after the new window 
popup, you need to specify the u and v from your dataset.

Let me know if you need more help.


Yuan

Ticket Details
===================
Ticket ID: LJG-859874
Department: Support IDV
Priority: Normal
Status: Closed