Re: Data Comparison

From: Mary Haley <haley_at_nyahnyahspammersnyahnyah>
Date: Mon, 11 Aug 2008 14:44:48 -0600 (MDT)

Hi Gabrielle,

I think you are almost there.

For each contour map, you want to either set res_at_cnLevelSelectionMode
to "ExplicitLevels" or "ManualLevels", as you suggested below.

Use "ManualLevels" if you want equally-spaced contour levels, and
"ExplicitLevels" if not.

For example, for equally-spaced contour levels:

   res_at_cnLevelSelectionMode = "ManualLevels"
   res_at_cnMinLevelValF = -2.0 ; minimum level
   res_at_cnMaxLevelValF = 5.0 ; maximum level
   res_at_cnLevelSpacingF = 0.5 ; contour level spacing

For non-equally-spaced contour levels:

   res_at_cnLevelSelectionMode = "ExplicitLevels"
   res_at_cnLevels = (/-1.0, 0., 1.1, 2.2, 3.3, 4.4/)

For a complete example, see examples 3 or 4 at:

    http://www.ncl.ucar.edu/Applications/panel.shtml

--Mary

On Mon, 11 Aug 2008, Gabrielle Ferreira Pires wrote:

> Dear NCL users!
> I need to generate maps to South America of a variable obtained by two
> different products and to compare them amongst themselves, and the group of
> maps of each product has a range of different data. My problem is that I
> need to plot all the maps with same scale of colors, and I would like to
> know if you can help me to solve this problem, since I already consulted
> other friends that work with NCL and I didn't obtain success. I already
> tried to use res_at_cnLevelSelectionMode = "ExplicitLevels" or "ManualLevels",
> and it didn't work. I tried to plot panels, but in each generated map, the
> value 2.2, for example, corresponded to a different color. I thought the
> reason could be the different interval of data in each file.
> All the files can be found at ftp://madeira.dea.ufv.br/users/elnunes/
>
> Respectfully,
>
> Gabrielle
>
> ----------------------------------------------------------
>
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Received on Mon Aug 11 2008 - 14:44:48 MDT

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