phonopy/scripts/tdplot

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6.6 KiB
Python
Executable File

#!/usr/bin/env python
# Copyright (C) 2011 Atsushi Togo
# All rights reserved.
#
# This file is part of phonopy.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# * Neither the name of the phonopy project nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# Thermal displacement plot (tdplot)
#
# Usage:
# tdplot -i "1 2, 4 5" -o "td.pdf"
#
# The axis resolved thermal displacements are averaged by root mean
# square with the successive indices separated by ",". In this
# example, values at a temperature with the indices 1 and 2, 3 and 4
# are averaged by root mean square respectively as follwos:
# sqrt( ( x_1 ** 2 + x_2 ** 2 + x_3 ** 2 + x_4 ** 2 ) / 4 ),
# and then they are ploted as a function of temperature.
#
# The definition is that indices correspond to those as follows:
# 1 2 3 : X Y Z of the 1st atom,
# 4 5 6 : X Y Z of the 2nd atom,
# ...
import sys
import numpy as np
import matplotlib.pyplot as plt
try:
import yaml
except ImportError:
print "You need to install python-yaml."
exit(1)
try:
from yaml import CLoader as Loader
from yaml import CDumper as Dumper
except ImportError:
from yaml import Loader, Dumper
# Parse options
from optparse import OptionParser
parser = OptionParser()
parser.set_defaults( output_filename = None,
factor = 1.0,
td_indices = None,
show_legend = False,
is_distance = False,
is_gnuplot = False,
ymax = None,
ymin = None,
tmax = None,
tmin = None )
parser.add_option("-i", "--indices", dest="td_indices",
action="store", type="string",
help="Indices like 1 2, 3 4 5 6...")
parser.add_option("--factor", dest="factor", type="float",
help="Conversion factor of energy unit to internal electronic energy")
parser.add_option("--ymax", dest="ymax", type="float",
help="Maximum value of y axis")
parser.add_option("--ymin", dest="ymin", type="float",
help="Minimum value of y axis")
parser.add_option("--tmax", dest="tmax", type="float",
help="Maximum value of temperature")
parser.add_option("--tmin", dest="tmin", type="float",
help="Minimum value of temperature")
parser.add_option("-o", "--output", dest="output_filename",
action="store", type="string",
help="Output filename")
parser.add_option("-l", "--legend", dest="show_legend",
action="store_true",
help="Show legend")
parser.add_option("--distance", dest="is_distance",
action="store_true",
help="Plot thermal distance")
(options, args) = parser.parse_args()
if not options.is_distance:
if len( args ) == 0:
filename = 'thermal_displacements.yaml'
else:
filename = args[0]
yamldata = yaml.load( open( filename ).read(), Loader=Loader )
td = yamldata['thermal_displacements']
temperatures = [ v['temperature'] for v in td ]
displacements = [ v['displacements'] for v in td ]
displacements = np.array( displacements ).reshape( len( temperatures ), -1 )
else:
if len( args ) == 0:
filename = 'thermal_distances.yaml'
else:
filename = args[0]
yamldata = yaml.load( open( filename ).read(), Loader=Loader )
td = yamldata['thermal_distances']
temperatures = [ v['temperature'] for v in td ]
distances = [ v['distance'] for v in td ]
for t, dists in zip( temperatures, distances ):
print t,
for d in dists:
print d,
print
print
print
sys.exit(0)
# Set temperature range
tmin_index = 0
tmax_index = len( temperatures )
if not options.tmin == None:
for i, t in enumerate( temperatures ):
if t > options.tmin - ( temperatures[1] - temperatures[0] ) * 0.1:
tmin_index = i
break
if not options.tmax == None:
for i, t in enumerate( temperatures ):
if t > options.tmax + ( temperatures[1] - temperatures[0] ) * 0.1:
tmax_index = i
break
# Extract indices
set_of_indices = []
if options.td_indices == None:
set_of_indices.append( range( 1, displacements.shape[1]+1 ) )
else:
for v in options.td_indices.split(','):
set_of_indices.append([ int(x) for x in v.split() ])
print set_of_indices
# Plot
plots = []
for indices in set_of_indices:
d = np.zeros( len( temperatures ), dtype=float )
for i in indices:
d += displacements[:, i-1]
plots.append( plt.plot( temperatures[tmin_index:tmax_index],
d[tmin_index:tmax_index] / len( indices ) ) )
# Set y range
if ( not options.ymin == None ) and ( not options.ymax == None ):
plt.ylim( options.ymin, options.ymax )
elif options.ymin == None and ( not options.ymax == None ):
plt.ylim( ymax=options.ymax )
elif ( not options.ymin == None ) and options.ymax == None:
plt.ylim( ymin=options.ymin )
if options.show_legend:
plt.legend( plots, set_of_indices, loc='upper left' )
# Set output device and show
if not options.output_filename == None:
plt.rcParams['pdf.fonttype'] = 42
plt.rcParams['font.family'] = 'serif'
plt.savefig(options.output_filename)
else:
plt.show()