jet.py

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import os
import sys
from numpy import *
from matplotlib.pyplot import *
import pyPLUTO as pp

plutodir = os.environ['PLUTO_DIR']
wdir = plutodir+'/Test_Problems/MHD/Jet/'
nlinf = pp.nlast_info(w_dir=wdir)

D = pp.pload(nlinf['nlast'],w_dir=wdir) # Loading the data into a pload object D.
I = pp.Image()
I.pldisplay(D, D.rho,x1=D.x1,x2=D.x2,label1='x',label2='y',
            title=r'Density $\rho$ [MHD jet]',cbar=(True,'vertical'),figsize=[7,12])

# Code to plot field lines. Requires 2 arrays xarr and yarr as 
# the starting point of integration i.e. x and y co-ordinate of the field point.
I.myfieldlines(D,linspace(D.x1.min(),D.x1.max(),10),linspace(D.x2.min(),D.x2.min(),10),
               colors='w',ls='-',lw=1.5)

savefig('jet_final.png') # Only to be saved as either .png or .jpg
show()