[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[IDV #ZCS-923814]: Plotting Wave Directions



Matt,

I am still not clear on why the Derived formulas will not work for
you. Ultimately the data are derived from u and v.  See the attached figure just
so we are on the same page.

But any rate, if there is something you prefer in the Formulas, but would rather
avoid the tedium of going via the Formulas interface, the IDV has the capability
of putting whatever formula you want under the Derived node. See these
instructions:

https://www.unidata.ucar.edu/software/idv/docs/workshop/formulas/DerivedData.html

It a little tricky, but doable. I can give you help in this area if you need 
(and
if so, please supply the formula you want).

Best,

Unidata IDV Support

> Hello,
> 
> There isn't really anything different between the two. The sea direction 
> variable is the direction of waves in radians. Basically, when I click on the 
> "Primary wave direction @ Ground or water surface" field, I would like to 
> just plot a Flow Display with the arrows on the map without needing to go 
> into formulas and such. It's not really a parameter you would contour. You 
> want to see the actual direction it's representing.
> 
> 
> Matt
> 
> -----Original Message-----
> From: Unidata IDV Support [mailto:address@hidden]
> Sent: Tuesday, March 01, 2016 18:12
> To: Matthew Muscato <address@hidden>
> Cc: address@hidden
> Subject: [IDV #ZCS-923814]: Plotting Wave Directions
> 
> Matt,
> 
> Can you explain to me the difference between wind direction and sea direction?
> 
> I am trying to understand why the options under the derived node in the IDV
> field selector are not suitable where there are several options to plot as
> vectors (granted they are called "wind")?
> 
> Best,
> 
> Unidata IDV Support
> 
> > Full Name: Matt Muscato
> > Email Address: address@hidden
> > Organization: Weather Routing, Inc.
> > Package Version: 5.2 build date:2015-08-26 18:19 UTC
> > Operating System: Windows 7
> > Hardware: Java: home: C:\Program Files\IDV_5.2\jre version: 1.8.0_45 
> > j3d:1.6.0-pre9-daily-experimental daily
> > Description of problem:
> >
> > Hello again IDV Viewer Support!
> >
> > I'd like to plot wave directions as vectors. I'm not given any options
> > to do so. I also don't see any parameters for sea directions. I did set
> > my wave direction parameter to wind direction and plot the vectors that
> > way, but that's not ideal.
> >
> > Any thoughts on how i can plot wave directions?
> >
> > Thanks!
> >
> >
> 
> 
> Ticket Details
> ===================
> Ticket ID: ZCS-923814
> Department: Support IDV
> Priority: Normal
> Status: Closed
> 
> 


Ticket Details
===================
Ticket ID: ZCS-923814
Department: Support IDV
Priority: Normal
Status: Closed

Attachment: wave.png
Description: PNG image