NCL notebook using Python2

First, you have to import the Image module from IPython.display to be able to display an PNG image inline the notebook.



In [13]:

    
from IPython.display import Image

With the command line

%%writefile <file name>

the content of the code cell underneath this line will be written into the file in current the directory. If it already exist it will be overwritten.



In [14]:

    
%%writefile ipython_ncl.ncl
begin

  f = addfile("$HOME/NCL/NUG/Version_1.0/data/rectilinear_grid_2D.nc","r")
  printVarSummary(f)


  t = f->tsurf
  printVarSummary(t)

  wks_type            = "png"
  wks_type@wkWidth    = 800
  wks_type@wkHeight   = 800
  wks = gsn_open_wks(wks_type,"plot_contour")

  res                 =  True
  res@gsnMaximize     =  True
  res@cnFillOn        =  True
  res@cnLevelSpacingF =  5
  res@tiMainString    = "Title string"

  plot = gsn_csm_contour_map(wks,t(1,:,:),res)

end









    



Overwriting ipython_ncl.ncl

Running the NCL script and save messages from stdout into the file log. Cut off the white space around the plot and displa ythe plot inline.



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!ncl ipython_ncl.ncl > log
!convert -trim +repage plot_contour.png plot_contour_small.png
Image('plot_contour_small.png')









    Out[15]:



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