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[ferret_users] How to control contours interval?



Hello ferret users,

Is it possible to have more control over labels used for contour intervals?
I have the following script for producing attached plot (please have a look at 
the attached file: giants_pme_anom.gif)

contour/fill/levels=(-1600,-800,200)(-800,-300,100)(-300,300,25)(300,800,100)
(800,1600,200)/key=continous/nolab/set_up pme-pme_ctrl  
ppl axlint,2,2
ppl axlsze,0.2,0.2
ppl shakey 1, 0, 0.14, 6, , , 1.15, 9.25, 0.5, 0.7 
ppl fill
contour/size=.1/levels=(-1600,-800,200)(-800,-300,100)(-300,300,25)
(300,800,100)(800,1600,200)del(0)/nolab/ov pme-pme_ctrl
go land

I have several anomaly patterns that I want to compare (values spans from 
-1600 to 1600), but for the attached figure values spans form -250 to 250. 
However, altough values are in that range (-250, 250), when I plot the 
contour only labels for 25 and -25 isolines appear, even though I used levels 
qualifier. I would expect that not only 25 levels are marked, but also 
25,50,75 etc... How to do that?

Thank you for your support,

Goran
 


-- 
Goran Georgievski
ICBM, Physical Oceanography (Theory), University of Oldenburg
PO Box 2503, D-26111 Oldenburg, Germany
Tel: +49-(0)441-798-4061, Fax: +49-(0)441-798-3404


Attachment: giants_pme_anom.gif
Description: GIF image


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