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Contours on a Gaussian grid


I am trying to do a contour or shade plot of data that is on a Gaussian
grid.  This grid has the latitude circles that are not exactly equally
spaced.  How can I specify to ferret each latitude on the grid ?  I see
two methods to accomplish this, although I do not know if ferret is made
to do them:

1- contour the data as if it was regularly spaced but draw the axis tics
and labels unequally spaced;

2- stretch the plot so that I can have a regular latitude axis, maybe by

Any help appreciated.

Michel Beland                 beland@CERCA.UMontreal.CA
professionnel de recherche    tel: (514)369-5223  fax: (514)369-3880
CERCA (CEntre de Recherche en Calcul Applique)
5160, boul. Decarie, bureau 400(423), Montreal (Quebec), Canada, H3X 2H9 

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