Re: setting cnLevelSelectionMode

From: Mary Haley <haley_at_nyahnyahspammersnyahnyah>
Date: Wed, 4 Mar 2009 13:57:53 -0700 (MST)


How exactly are you setting the manual contour labels, and are you
setting them when you create individual plots? (You don't want to set
them when calling gsn_panel.)

Also, make sure you have res_at_gsnSpreadColors set to True.

Finally, it looks like you don't have a ".hluresfile" in your home
directory. This file customizes your NCL graphics, and in particular,
it changes the default font from "times-roman" to "helvetica", which
looks better.

For more information and a sample file, see:


On Wed, 4 Mar 2009, Gina Henderson wrote:

> Hi there,
> I have a question about setting manual contour intervals in ncl. I am
> concerned because I created a panel plot for data using the "RasterFill"
> mode and added a common color bar. I then wanted to change the contour
> interval on the color bar and when I set my own contour values, the data
> values seemed to change. To check I set the manual levels to the same as
> what the default values had been (same max and min and breaks) and the two
> plots vary greatly.
> What I am concerned about is, how does the manual contour value option in
> ncl really work and why should setting this value manually (to the same
> value as the default) change the plot so drastically? I have attached two
> plots showing the difference between when I set the manual levels and when I
> do not.
> Any insight into this problem I would really appreciate,
> thanks, Gina.
> --
> Gina Henderson
> Graduate Student
> Department of Geography
> 215 Pearson Hall
> University of Delaware
> Newark DE
> 19718-2541
> Email:
> Ph: 302-831-2344
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Received on Wed Mar 04 2009 - 13:57:53 MST

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