logplot.py
6a199236de91lammm-master-deprecated

logplot.py
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			#!/usr/bin/env python -i

			# Script: logplot.py
			# Purpose: use GnuPlot to plot two columns from a LAMMPS log file
			# Syntax: logplot.py log.lammps X Y
			# log.lammps = LAMMPS log file
			# X,Y = plot Y versus X where X,Y are thermo keywords
			# once plot appears, you are in Python interpreter, type C-D to exit
			# Author: Steve Plimpton (Sandia), sjplimp at sandia.gov

			import sys,os
			path = os.environ["LAMMPS_PYTHON_TOOLS"]
			sys.path.append(path)
			from log import log
			from gnu import gnu

			if len(sys.argv) != 4:
			raise StandardError, "Syntax: logplot.py log.lammps X Y"

			logfile = sys.argv[1]
			xlabel = sys.argv[2]
			ylabel = sys.argv[3]

			lg = log(logfile)
			x,y = lg.get(xlabel,ylabel)
			g = gnu()
			g.plot(x,y)
			print "Type Ctrl-D to exit Python"