PyNGL example xy-plotΒΆ

Software requirements:

  • Python 2 or 3

  • Numpy

  • PyNGL 1.6.1

Run the xy-plot example script:

python PyNGL_xy_plot.py

Script PyNGL_xy_plot.py:

'''
  DKRZ PyNGL Script: PyNGL_xy_plot.py

  Description:       simple xy-plot

  11.05.15  meier-fleischer(at)dkrz.de
'''
import numpy, os
import Ngl

#-----------------------------------------------------------------------
#-- Function: main
#-----------------------------------------------------------------------
def main():

import numpy
import Ngl

#--  define x and y variables
x = [10., 20., 30., 40., 50., 60., 70., 80., 90.]
y = numpy.array([0., 0.7, 1., 0.7, 0., -0.7, -1., -0.7, 0.],'f')

#-- open a workstation
wkres           =  Ngl.Resources()
wks             =  Ngl.open_wks("png","plot_xy_0_py",wkres)

#-- set resources
res             =  Ngl.Resources()          #-- generate an res object for plot

#-- draw the plot
plot = Ngl.xy(wks,x,y,res)

#-- done
Ngl.end()

if __name__ == '__main__':
    main()

Result:

PyNGL xy-plot w400