DAMASK_EICMD/processing/post/addOrientations.py

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#!/usr/bin/env python2
# -*- coding: UTF-8 no BOM -*-
import os,sys,math
import numpy as np
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from optparse import OptionParser
import damask
scriptName = os.path.splitext(os.path.basename(__file__))[0]
scriptID = ' '.join([scriptName,damask.version])
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# --------------------------------------------------------------------
# MAIN
# --------------------------------------------------------------------
parser = OptionParser(option_class=damask.extendableOption, usage='%prog options [file[s]]', description = """
Add quaternion and/or Bunge Euler angle representation of crystal lattice orientation.
Orientation is given by quaternion, Euler angles, rotation matrix, or crystal frame coordinates
(i.e. component vectors of rotation matrix).
""", version = scriptID)
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outputChoices = ['quaternion','rodrigues','eulers']
parser.add_option('-o', '--output',
dest = 'output',
action = 'extend', metavar = '<string LIST>',
help = 'output orientation formats {%s}'%(','.join(outputChoices)))
parser.add_option('-r', '--rotation',
dest='rotation',
type = 'float', nargs = 4, metavar = ' '.join(['float']*4),
help = 'angle and axis to (pre)rotate orientation')
parser.add_option('-s', '--symmetry',
dest = 'symmetry',
type = 'choice', choices = damask.Symmetry.lattices[1:], metavar='string',
help = 'crystal symmetry [%default] {{{}}} '.format(', '.join(damask.Symmetry.lattices[1:])))
parser.add_option('-e', '--eulers',
dest = 'eulers',
type = 'string', metavar = 'string',
help = 'Euler angles label')
parser.add_option('-d', '--degrees',
dest = 'degrees',
action = 'store_true',
help = 'Euler angles are given in degrees [%default]')
parser.add_option('-m', '--matrix',
dest = 'matrix',
type = 'string', metavar = 'string',
help = 'orientation matrix label')
parser.add_option('-a',
dest = 'a',
type = 'string', metavar = 'string',
help = 'crystal frame a vector label')
parser.add_option('-b',
dest = 'b',
type = 'string', metavar = 'string',
help = 'crystal frame b vector label')
parser.add_option('-c',
dest = 'c',
type = 'string', metavar = 'string',
help = 'crystal frame c vector label')
parser.add_option('-q', '--quaternion',
dest = 'quaternion',
type = 'string', metavar = 'string',
help = 'quaternion label')
parser.set_defaults(output = [],
symmetry = damask.Symmetry.lattices[-1],
rotation = (0.,1.,1.,1.), # no rotation about 1,1,1
degrees = False,
)
(options, filenames) = parser.parse_args()
options.output = map(lambda x: x.lower(), options.output)
if options.output == [] or (not set(options.output).issubset(set(outputChoices))):
parser.error('output must be chosen from {}.'.format(', '.join(outputChoices)))
input = [options.eulers is not None,
options.a is not None and \
options.b is not None and \
options.c is not None,
options.matrix is not None,
options.quaternion is not None,
]
if np.sum(input) != 1: parser.error('needs exactly one input format.')
(label,dim,inputtype) = [(options.eulers,3,'eulers'),
([options.a,options.b,options.c],[3,3,3],'frame'),
(options.matrix,9,'matrix'),
(options.quaternion,4,'quaternion'),
][np.where(input)[0][0]] # select input label that was requested
toRadians = math.pi/180.0 if options.degrees else 1.0 # rescale degrees to radians
r = damask.Quaternion().fromAngleAxis(toRadians*options.rotation[0],options.rotation[1:]) # pre-rotation
# --- loop over input files ------------------------------------------------------------------------
if filenames == []: filenames = [None]
for name in filenames:
try:
table = damask.ASCIItable(name = name,
buffered = False)
except: continue
damask.util.report(scriptName,name)
# ------------------------------------------ read header ------------------------------------------
table.head_read()
# ------------------------------------------ sanity checks -----------------------------------------
errors = []
remarks = []
if not np.all(table.label_dimension(label) == dim): errors.append('input {} does not have dimension {}.'.format(label,dim))
else: column = table.label_index(label)
if remarks != []: damask.util.croak(remarks)
if errors != []:
damask.util.croak(errors)
table.close(dismiss = True)
continue
# ------------------------------------------ assemble header ---------------------------------------
table.info_append(scriptID + '\t' + ' '.join(sys.argv[1:]))
for output in options.output:
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if output == 'quaternion': table.labels_append(['{}_quat({})'.format( i+1,options.symmetry) for i in xrange(4)])
if output == 'rodrigues': table.labels_append(['{}_rodrigues({})'.format(i+1,options.symmetry) for i in xrange(3)])
if output == 'eulers': table.labels_append(['{}_eulers({})'.format( i+1,options.symmetry) for i in xrange(3)])
table.head_write()
# ------------------------------------------ process data ------------------------------------------
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outputAlive = True
while outputAlive and table.data_read(): # read next data line of ASCII table
if inputtype == 'eulers':
o = damask.Orientation(Eulers = np.array(map(float,table.data[column:column+3]))*toRadians,
symmetry = options.symmetry).reduced()
elif inputtype == 'matrix':
o = damask.Orientation(matrix = np.array(map(float,table.data[column:column+9])).reshape(3,3).transpose(),
symmetry = options.symmetry).reduced()
elif inputtype == 'frame':
o = damask.Orientation(matrix = np.array(map(float,table.data[column[0]:column[0]+3] + \
table.data[column[1]:column[1]+3] + \
table.data[column[2]:column[2]+3])).reshape(3,3),
symmetry = options.symmetry).reduced()
elif inputtype == 'quaternion':
o = damask.Orientation(quaternion = np.array(map(float,table.data[column:column+4])),
symmetry = options.symmetry).reduced()
o.quaternion = r*o.quaternion
for output in options.output:
if output == 'quaternion': table.data_append(o.asQuaternion())
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if output == 'rodrigues': table.data_append(o.asRodrigues())
if output == 'eulers': table.data_append(o.asEulers('Bunge', degrees=options.degrees))
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outputAlive = table.data_write() # output processed line
# ------------------------------------------ output finalization -----------------------------------
table.close() # close ASCII tables