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foam-extend4.1-coherent-io/bin/plotResCoupled.py

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#!/usr/bin/python
import sys
if len(sys.argv) != 2:
print 'script requires name of log file'
sys.exit()
logfilename = sys.argv[1]
print 'Reading file', logfilename
import re
UpRegex=r"([A-Z,a-z]*):*.*Solving for Up, Initial residual = \(([0-9.Ee\-+]*)\s([0-9.Ee\-+]*)\s([0-9.Ee\-+]*)\s([0-9.Ee\-+]*)\), Final residual = \(([0-9.Ee\-+]*)\s([0-9.Ee\-+]*)\s([0-9.Ee\-+]*)\s([0-9.Ee\-+]*)\), No Iterations ([0-9]*)"
komegaRegex=r"([A-Z,a-z]*):*.*Solving for kOmega, Initial residual = \(([0-9.Ee\-+]*)\s([0-9.Ee\-+]*)\), Final residual = \(([0-9.Ee\-+]*)\s([0-9.Ee\-+]*)\), No Iterations ([0-9]*)"
tUp = []
Ux = []
Uy = []
Uz = []
p = []
iUp = 0
tkomega = []
k = []
omega = []
ikomega = 0
#HJ take name of log file as script argument
pipefile=open(logfilename,'r')
lines = pipefile.readlines()
for line in lines:
matchUp=re.search(UpRegex,line)
if matchUp:
iUp = iUp + 1
tUp.append(iUp)
Ux.append(float(matchUp.group(2)))
Uy.append(float(matchUp.group(3)))
Uz.append(float(matchUp.group(4)))
p.append(float(matchUp.group(5)))
matchkomega=re.search(komegaRegex,line)
if matchkomega:
ikomega = ikomega + 1
tkomega.append(ikomega)
k.append(float(matchkomega.group(2)))
omega.append(float(matchkomega.group(3)))
outfile=open('residual.dat','w')
print 'hits = ', ikomega
#HJ need better way of combining lists
if ikomega > 0:
for index in range(0,ikomega):
outfile.write(str(tUp[index])+' '+str(Ux[index])+' '+str(Uy[index])+' '+str(Uz[index])+' '+str(p[index])+' '+str(k[index])+' '+str(omega[index])+'\n')
elif iUp > 0:
for index in range(0,iUp):
outfile.write(str(tUp[index])+' '+str(Ux[index])+' '+str(Uy[index])+' '+str(Uz[index])+' '+str(p[index])+'\n')
outfile.close()
# prepare plot
import pylab
pylab.xlabel('iteration')
pylab.ylabel('residual')
pylab.grid(True)
# plot in log scale
if iUp > 0:
pylab.semilogy(tUp,Ux,'-',label="Ux")
pylab.semilogy(tUp,Uy,'-',label="Uy")
pylab.semilogy(tUp,Uz,'-',label="Uz")
pylab.semilogy(tUp,p,'-',label="p")
if ikomega > 0:
pylab.semilogy(tkomega,k,'-',label="k")
pylab.semilogy(tkomega,omega,'-',label="omega")
pylab.legend()
pylab.show()