Relative Vorticity Contouring

[Bill Bua]

set clab off (sets the contour labeling off so that #'s don't show up).

Bill

Dizzle Man wrote:
> Excellent!, I have tried option two and that works fine. There is one
> slight issue though. Is it possible to remove the numbers that come up
> on the display when I use contour plotting. They kind of get in the
> way when I am observing my data. Also in option 1, what do the min and
> max represent in set gxout stat?
>
> On Tue, Aug 5, 2008 at 2:38 PM, Austin Conaty
> <Austin.L.Conaty at nasa.gov <mailto:Austin.L.Conaty at nasa.gov>> wrote:
>
>     One possible solution is to
>     1) set gxout stat
>     2) loop through the data and capture min and max
>     3) using the min/max info, use the same set ccols and
>       set clevs commands before each display
>     4) set gxout shaded and plot.
>
>     Or, if you're happy with the color and shading used in the first
>     time period
>     another possible solution is to
>     1) set t 1
>     2) set gxout shaded
>     3) d relvort
>     4) q shades
>     5) set ccols and set clevs according to info returned
>       by q shades.
>
>
>     Eric Altshuler wrote:
>
>         That is odd because in my experience it is in animations that
>         contouring and color schemes can be ill-suited to the data
>         being plotted. That's because whatever contouring scheme is
>         used (or chosen by grads) for the first frame, is also applied
>         to all the remaining frames so as to ensure the same
>         contouring scheme for the whole animation. This can be a
>         problem, though, if the data field being animated changes a
>         lot during the animation (e.g. a rapidly intensifying hurricane).
>
>         When your are plotting each time step individually, grads
>         chooses the contouring/color scheme separately for each step
>         unless you set it yourself. In this situation, if the
>         character of the data field changes significantly in time,
>         grads will choose new contouring schemes to suit the data at
>         each time step. The disadvantage here is that the contouring
>         scheme is not consistent across all frames. It's a tradeoff.
>
>         How are you doing your animations? Are you setting T to vary
>         and plotting the variable, or have you set up a script loop to
>         display one time step, sleep for some interval, advance T and
>         then display the next time step? The behavior of animations
>         using these two methods can be quite different.
>
>         ----- Original Message -----
>         From: "Dizzle Man" <selfscience06 at GMAIL.COM
>         <mailto:selfscience06 at GMAIL.COM>>
>         To: GRADSUSR at LIST.CINECA.IT <mailto:GRADSUSR at LIST.CINECA.IT>
>         Sent: Saturday, August 2, 2008 1:28:03 PM GMT -05:00 US/Canada
>         Eastern
>         Subject: Relative Vorticity Contouring
>
>         Hello Everyone,
>
>         I am doing a plots for relative voricity [hcurl(u,v)].  The
>         issue that I am
>         having is when I run my animation I get a beautiful sequence
>         of images, so
>         when I begin the plot each time step individually I do not
>         receive that same
>         contouring intervals that is displayed in the animation. Its
>         like the
>         individual plotting loses coloring, but that animation gives
>         me what I am
>         looking for. Does this make sense? I was wondering how can I
>         maintain the
>         color sequence that the animation gives for individual time
>         step plotting?
>
>
>