DAMASK_EICMD/processing/post/addCalculation.py

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#!/usr/bin/env python
# -*- coding: UTF-8 no BOM -*-
import os,re,sys,math,string
import numpy as np
from optparse import OptionParser
import damask
scriptID = '$Id$'
scriptName = scriptID.split()[1]
def unravel(item):
if hasattr(item,'__contains__'): return ' '.join(map(unravel,item))
else: return str(item)
# --------------------------------------------------------------------
# MAIN
# --------------------------------------------------------------------
parser = OptionParser(option_class=damask.extendableOption, usage='%prog options [file[s]]', description = """
Add column(s) with derived values according to user defined arithmetic operation between column(s).
Columns can be specified either by label or index. Use ';' for ',' in functions.
Example: distance to IP coordinates -- "math.sqrt( #ip.x#**2 + #ip.y#**2 + round(#ip.z#;3)**2 )"
""" + string.replace(scriptID,'\n','\\n')
)
parser.add_option('-l','--label', dest='labels', action='extend', type='string', \
help='(list of) new column labels', metavar='<LIST>')
parser.add_option('-f','--formula', dest='formulas', action='extend', type='string', \
help='(list of) formulas corresponding to labels', metavar='<LIST>')
parser.set_defaults(labels= [])
parser.set_defaults(formulas= [])
(options,filenames) = parser.parse_args()
if len(options.labels) != len(options.formulas):
parser.error('number of labels (%i) and formulas (%i) do not match'%(len(options.labels),len(options.formulas)))
for i in xrange(len(options.formulas)):
options.formulas[i]=options.formulas[i].replace(';',',')
# ------------------------------------------ setup file handles ---------------------------------------
files = []
if filenames == []:
files.append({'name':'STDIN', 'input':sys.stdin, 'output':sys.stdout, 'croak':sys.stderr})
else:
for name in filenames:
if os.path.exists(name):
files.append({'name':name, 'input':open(name), 'output':open(name+'_tmp','w'), 'croak':sys.stderr})
#--- loop over input files ------------------------------------------------------------------------
for file in files:
if file['name'] != 'STDIN': file['croak'].write('\033[1m'+scriptName+'\033[0m: '+file['name']+'\n')
else: file['croak'].write('\033[1m'+scriptName+'\033[0m\n')
specials = { \
'_row_': 0,
}
table = damask.ASCIItable(file['input'],file['output'],False) # make unbuffered ASCII_table
table.head_read() # read ASCII header info
table.info_append(string.replace(scriptID,'\n','\\n') + \
'\t' + ' '.join(sys.argv[1:]))
evaluator = {}
brokenFormula = {}
for label,formula in zip(options.labels,options.formulas):
interpolator = []
for column in re.findall(r'#(.+?)#',formula): # loop over column labels in formula
formula = formula.replace('#'+column+'#','%f')
if column in specials:
interpolator += ['specials["%s"]'%column]
elif column.isdigit():
if len(table.labels) > int(column):
interpolator += ['float(table.data[%i])'%(int(column))]
else:
file['croak'].write('column %s not found...\n'%column)
brokenFormula[label] = True
else:
try:
interpolator += ['float(table.data[%i])'%table.labels.index(column)]
except:
file['croak'].write('column %s not found...\n'%column)
brokenFormula[label] = True
if label not in brokenFormula:
evaluator[label] = "'" + formula + "'%(" + ','.join(interpolator) + ")"
# ------------------------------------------ calculate one result to get length of labels ------
table.data_read()
labelLen = {}
for label in options.labels:
labelLen[label] = np.size(eval(eval(evaluator[label])))
# ------------------------------------------ assemble header ---------------------------------------
for label,formula in zip(options.labels,options.formulas):
if labelLen[label] == 0:
brokenFormula[label] = True
if label not in brokenFormula:
if labelLen[label] == 1:
table.labels_append(label)
else:
table.labels_append(['%i_%s'%(i+1,label) for i in xrange(labelLen[label])])
table.head_write()
# ------------------------------------------ process data ---------------------------------------
outputAlive = True
table.data_rewind()
while outputAlive and table.data_read(): # read next data line of ASCII table
specials['_row_'] += 1 # count row
for label in options.labels: table.data_append(unravel(eval(eval(evaluator[label]))))
outputAlive = table.data_write() # output processed line
# ------------------------------------------ output result ---------------------------------------
outputAlive and table.output_flush() # just in case of buffered ASCII table
file['input'].close() # close input ASCII table
if file['name'] != 'STDIN':
file['output'].close() # close output ASCII table
os.rename(file['name']+'_tmp',file['name']) # overwrite old one with tmp new