reading data files

[Joerg Kaduk <joerg@xxxxxxxxxxxxxxxxxxx>]

Hi Weiq,
as far as I can tell your file statement is just fine.
The only thing I can suggest right now is to try
defining the grid gridxy as follows:

   def axis/x=0.5:359.5:1/mod/unit=degrees x1
   def axis/y=-89.5:89.5:1/unit=degrees y1
   def axis/t=1:12:1 t1
define grid/x=x1,y=y1,t=t1 gridxy


 file/format=stream/grid=gridxy/columns=64800/var=xx  c:\tmp\sh2.dat

and then try a
shade xx[l=2]

I don't think that the x axis definition above
is much different from what you had. It should be the same.
I am not sure that you had the t-axis in your grid. So maybe
that's the trouble.
If this doesn't work try a grid without units, to get just a
360x180 plot. If that doesn't work then probably something
is wrong with the data access.
Cheers,
Joerg



--
Joerg Kaduk
Department of Plant Biology
Carnegie Institution of Washington        e-mail: joerg@jasper.stanford.edu
260 Panama Street                         phone:  +1 (650) 325 1521 ext 416
Stanford, CA 94305                        fax:    +1 (650) 325 6857