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[IDV #ZAA-193317]: filtering "feature"

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  • Subject: [IDV #ZAA-193317]: filtering "feature"
  • Date: Tue, 04 May 2010 13:45:42 -0600
Jim-

> Full Name: Jim Steenburgh
> Email Address: address@hidden
> Organization: University of Utah
> Package Version: 2.9a1 build date:2010-05-03 07:07 UTC
> Operating System: Mac OS X
> Hardware: Java: home: 
> /System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home version: 
> 1.6.0_15 j3d:1.5.2 fcs (build4)
> Description of problem: Don:
> 
> I noticed in this bundle that if you go to the 700 hPa tab, you can apply 
> circular aperature to one of the Vertical velocity loads, but not both.  For 
> instance, I can apply circular to one, rectangular to the other, and it works 
> fine.  But not both.

This is the same problem you ran into over the weekend and is fixed in today's 
(2010-05-04 07:18 UTC) build.  The version you are running is _SO_ yesterday.

> I'm doin gthis because I'd like the field smoothed, but want negative values 
> one color and positive the other, with no zero contour plotted.  If there's 
> an easier way to do this, let me know.

Create a color table with 6 colors.  Make 1/2 blue, the other half red and set 
the range for the reasonable range of values (N) for the parameter from -N to 
+N.  For the contour interval, you can use GEMPAK syntax, so it could be 
something like:

2/-100/-2;2/2/100

to contour at 2 units from -100 to -2 and 2 to 100 (or whatever range you want).
That should eliminate 0.  If you want to dash the negative values, then set the 
base 
to be 0 and turn dashing on.

This way, you only need one display.

Don

Ticket Details
===================
Ticket ID: ZAA-193317
Department: Support IDV
Priority: Normal
Status: Open