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[ferret_users] plot of differences, what pattern?
Hi everyone,
I'm trying to plot as clearly as possible a XY variable ranging between -1 and 1 let's say, by 0.1 step. The variable is a bit messy to the extent negative and positive values are next to each other and no clear separation appears. With a grey scale (no colour allowed this time), it's impossible to see what is negative, what is positive.
I'm wondering whether it'll be possible to plot a "+" symbol for positive values and a "-" symbol for negative values (instead of a filled gridmesh) and to mimic in the same time the pattern tool by changing the colour of the "+" and the "-". The closer the values would be to |1|, the darker the "+" or "-" symbol would be.
I've been playing with palette/pattern combinations, without any real success so far.
Is it possible to create one's own pattern?
Thanks for any suggestion,
Emilie
______________________________________________________________
Emilie VANVYVE
Physicist, PhD student
Regional climate modelling, Tropical climate
Université catholique de Louvain (UCL)
Institut d'astronomie et de géophysique G. Lemaître (ASTR)
Chemin du Cyclotron, 2, B-1348 Louvain-la-Neuve (Belgium)
Phone: +32 (0)10 473300 Fax: +32 (0)10 474722
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