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[IDV #VIH-663165]: plotting wave direction vectors

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  • Subject: [IDV #VIH-663165]: plotting wave direction vectors
  • Date: Thu, 14 Apr 2011 13:44:55 -0600
> Full Name: Alan Bol
> Email Address: address@hidden
> Organization: COMET
> Package Version: 2.9u2 build date:2010-10-04 19:14 UTC
> Operating System: Windows 7
> Hardware: Java: home: C:\Program Files (x86)\IDV_2.9u2\jre version: 1.6.0_20 
> j3d:1.5.2 fcs (build4)
> Description of problem: Hi guys,
> I've got a gridded file of ocean wave directions (degrees) that I'd like to 
> plot as vectors. I made a stab at it but nothing shows up on the display.
> Here's what I did:
> 1. chose the file.
> 2. field sector/formulas/make flow vector from u and v
> 3. for u and v, I chose Misc/define a formula
> 4. for u, I entered sin(d), the selected my data file for d.
> 5. for v, I entered cos(d), and again chose my data file for d.
> 6. then, when I create display, nothing shows. But it doesn't show any 
> errors, either.
> Any ideas?
> 
> attached bundle and data file.
> thanks,
> alan
> 
> 
Alan,
     I think your data is between +/-360 degree, you need to convert to radian. 
Also, in the vector display control, change the range to -1 to 1. See the 
attached.


Yuan

Ticket Details
===================
Ticket ID: VIH-663165
Department: Support IDV
Priority: Normal
Status: Closed

Attachment: vector.gif
Description: GIF image