Relative Vorticity Contouring

[Dizzle Man]

I am setting T to vary and plotting the variable. My data is from a WRF
output so I have 33 time steps. The first time step is shaded fine, but
everything after is not.

On Tue, Aug 5, 2008 at 1:32 PM, Eric Altshuler <ela at cola.iges.org> 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>
> To: 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?
>
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