DAMASK_EICMD/processing/post/addPole.py

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#!/usr/bin/env python2
# -*- 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
# --------------------------------------------------------------------
parser = OptionParser(option_class=damask.extendableOption, usage='%prog options [file[s]]', description = """
Add x,y coordinates of stereographic projection of given direction (pole) in crystal frame.
""", version = scriptID)
parser.add_option('-p', '--pole',
dest = 'pole',
type = 'float', nargs = 3, metavar = 'float float float',
help = 'crystal frame direction for pole figure [%default]')
parser.add_option('--polar',
dest = 'polar',
action = 'store_true',
help = 'output polar coordinates r,phi [%default]')
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(pole = (1.0,0.0,0.0),
degrees = False,
polar = False,
)
(options, filenames) = parser.parse_args()
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
pole = np.array(options.pole)
pole /= np.linalg.norm(pole)
# --- 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:]))
table.labels_append(['{}_pole_{}{}{}'.format(i+1,*options.pole) for i in xrange(2)])
table.head_write()
# ------------------------------------------ process data ------------------------------------------
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)
elif inputtype == 'matrix':
o = damask.Orientation(matrix = np.array(map(float,table.data[column:column+9])).reshape(3,3).transpose())
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))
elif inputtype == 'quaternion':
o = damask.Orientation(quaternion = np.array(map(float,table.data[column:column+4])))
rotatedPole = o.quaternion*pole # rotate pole according to crystal orientation
(x,y) = rotatedPole[0:2]/(1.+abs(pole[2])) # stereographic projection
table.data_append([np.sqrt(x*x+y*y),np.arctan2(y,x)] if options.polar else [x,y]) # cartesian coordinates
outputAlive = table.data_write() # output processed line
# ------------------------------------------ output finalization -----------------------------------
table.close() # close ASCII tables