DAMASK_EICMD/processing/post/rotateData.py

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#!/usr/bin/env python3
# -*- coding: UTF-8 no BOM -*-
import os,sys,math
import numpy as np
from optparse import OptionParser
import damask
scriptName = os.path.splitext(os.path.basename(__file__))[0]
scriptID = ' '.join([scriptName,damask.version])
# --------------------------------------------------------------------
# MAIN
# --------------------------------------------------------------------
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parser = OptionParser(option_class=damask.extendableOption, usage='%prog options [ASCIItable(s)]', description = """
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Rotate vector and/or tensor column data by given angle around given axis.
""", version = scriptID)
parser.add_option('-d', '--data',
dest = 'data',
action = 'extend', metavar = '<string LIST>',
help = 'vector/tensor value(s) label(s)')
parser.add_option('-r', '--rotation',
dest = 'rotation',
type = 'float', nargs = 4, metavar = ' '.join(['float']*4),
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help = 'angle and axis to rotate data [%default]')
parser.add_option('--degrees',
dest = 'degrees',
action = 'store_true',
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help = 'angles are given in degrees')
parser.set_defaults(rotation = (0.,1.,1.,1.), # no rotation about 1,1,1
degrees = False,
)
(options,filenames) = parser.parse_args()
if options.data is None:
parser.error('no data column specified.')
toRadians = math.pi/180.0 if options.degrees else 1.0 # rescale degrees to radians
q = damask.Quaternion().fromAngleAxis(toRadians*options.rotation[0],options.rotation[1:])
R = q.asMatrix()
# --- loop over input files -------------------------------------------------------------------------
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if filenames == []: filenames = [None]
for name in filenames:
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try:
table = damask.ASCIItable(name = name,
buffered = False)
except: continue
damask.util.report(scriptName,name)
# --- interpret header ----------------------------------------------------------------------------
table.head_read()
errors = []
remarks = []
active = {'vector':[],'tensor':[]}
for i,dim in enumerate(table.label_dimension(options.data)):
label = options.data[i]
if dim == -1:
remarks.append('"{}" not found...'.format(label))
elif dim == 3:
remarks.append('adding vector "{}"...'.format(label))
active['vector'].append(label)
elif dim == 9:
remarks.append('adding tensor "{}"...'.format(label))
active['tensor'].append(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:]))
table.head_write()
# ------------------------------------------ process data ------------------------------------------
outputAlive = True
while outputAlive and table.data_read(): # read next data line of ASCII table
for v in active['vector']:
column = table.label_index(v)
table.data[column:column+3] = q * np.array(list(map(float,table.data[column:column+3])))
for t in active['tensor']:
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column = table.label_index(t)
table.data[column:column+9] = \
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np.dot(R,np.dot(np.array(list(map(float,table.data[column:column+9]))).reshape((3,3)),
R.transpose())).reshape((9))
outputAlive = table.data_write() # output processed line
# ------------------------------------------ output finalization -----------------------------------
table.close() # close ASCII tables