Re: How to force pyNGl to contour-plot a constant field with a label bar?

From: Mary Haley <haley_at_nyahnyahspammersnyahnyah>
Date: Wed Mar 17 2010 - 16:51:29 MDT

Hi Alex,

I'm afraid that when PyNGL hits a constant-field contour plot, it
doesn't behave very well. I thought maybe I could force a labelbar by
explicitly setting some contour levels, but this didn't work.

The only thing I'm left with is to create the labelbar by hand. The
problem with this is that it will be hard to match it up with the
other labelbars.

Let me try to come up with an example for you.

Meanwhile, I think we fixed that PDF media box bug you reported
awhile back, but I haven't propagated the bug to PyNGL yet. Maybe I
can do this while working on that example for you...


On Mar 17, 2010, at 1:28 PM, Alexander Radebach wrote:

> Dear list members,
> as I prepared a panel plot of 6 contour world maps (each having its
> own label bar) showing different network measures, I sometimes have
> a constant field for one of the six plots. No problem so far.
> But then, pyNgl assigns a "CONSTANT FIELD"-label to the plot and
> also inhibits the label bar to appear. The former can be handled by
> "cnConstFLabelOn", the latter cannot (as far as I know).
> Does anyone know how to force pyNgl to plot the label bar and also
> the colour fill for a constant field, too? (I know that this sounds
> to be redundant, but is not in comparison to other plots.) (And of
> course I'm searching for a clean solution; not: the "Just assign
> one non-constant value to your field!"-method.)
> See attached jpg for illustration of the problem. The plot in the
> middle on the left is our delinquent. (As a consequence of the non-
> appearing label bar, the maximization is influenced.)
> Thanks in advance,
> Alex
> --
> Alexander Radebach
> Potsdam Institute for Climate Impact Research (PIK)
> Research Domain IV: Transdisciplinary concepts and methods
> P.O. Box 60 12 03
> D-14412 Potsdam, Germany
> E-Mail:
> --<local_measures.jpg>_______________________________________________
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Received on Wed Mar 17 16:52:28 2010

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