Hi,all
I am fluent with the longitude coordinates of (0E, 360E), but now was
a little puzzled when dealing with the coordinates of (-180E,175E) .
Here below is parts of my scripts :
; read the hadslp data
data = asciiread("/Work/smi/Hadslp2_185001-200412.dat",-1,"float")
x = onedtond(data,(/72,37,12,155/))
x!0 = "lon"
x!1 = "lat"
x!2 = "month"
x!3 = "year"
x&lon = fspan(-180.,175.,72) ; see more details in the
hadslpr2's data read instruction
x&lon@units = "degrees_east"
x&lat = fspan(90.,-90.,37)
x&lat@units = "degree_north"
x&month = ispan(1,12,1)
x&year = ispan(1850,2004,1)
printVarSummary(x)
......
res@mpMinLonF = 30
res@mpMaxLonF = -150
I want to pick out the sub-region eastward extending from 30E to 150W, but
of course the above resource would cause errors for the reason that
mpMinLonF must be less than
mpMaxLonF.
How could I set the region correctly for plot? Is there a way to transform
the coordinates such as (-180E, 175E) to the ones such as (0E,360E)? I
know the lonFlip and lonPivot,
However, I don't find a corresponding function to the opposite job.
Thanks!
best wish!
Lin
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Received on Wed Nov 23 09:55:30 2011
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