DAMASK_EICMD/processing/pre/seeds_fromTable.py

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#!/usr/bin/env python
# -*- coding: UTF-8 no BOM -*-
import os,sys,string,itertools,numpy,damask
from optparse import OptionParser, Option
scriptID = '$Id$'
scriptName = scriptID.split()[1]
# -----------------------------
class extendableOption(Option):
# -----------------------------
# used for definition of new option parser action 'extend', which enables to take multiple option arguments
# taken from online tutorial http://docs.python.org/library/optparse.html
ACTIONS = Option.ACTIONS + ("extend",)
STORE_ACTIONS = Option.STORE_ACTIONS + ("extend",)
TYPED_ACTIONS = Option.TYPED_ACTIONS + ("extend",)
ALWAYS_TYPED_ACTIONS = Option.ALWAYS_TYPED_ACTIONS + ("extend",)
def take_action(self, action, dest, opt, value, values, parser):
if action == "extend":
lvalue = value.split(",")
values.ensure_value(dest, []).extend(lvalue)
else:
Option.take_action(self, action, dest, opt, value, values, parser)
#--------------------------------------------------------------------------------------------------
# MAIN
#--------------------------------------------------------------------------------------------------
synonyms = {
'grid': ['resolution'],
'size': ['dimension'],
}
identifiers = {
'grid': ['a','b','c'],
'size': ['x','y','z'],
'origin': ['x','y','z'],
}
mappings = {
'grid': lambda x: int(x),
'size': lambda x: float(x),
'origin': lambda x: float(x),
'homogenization': lambda x: int(x),
'microstructures': lambda x: int(x),
}
parser = OptionParser(option_class=extendableOption, usage='%prog options [file[s]]', description = """
Create seed file by taking microstructure indices from given ASCIItable column.
White and black-listing of microstructure indices is possible.
Examples:
--white 1,2,5 --index grainID isolates grainID entries of value 1, 2, and 5;
--black 1 --index grainID takes all grainID entries except for value 1.
""" + string.replace(scriptID,'\n','\\n')
)
parser.add_option('-p', '--positions', dest='pos', type='string',
help = 'coordinate label')
parser.add_option('-i', '--index', dest='index', type='string',
help = 'microstructure index label')
parser.add_option('-w','--white', dest='whitelist', action='extend', type='string', \
help='white list of microstructure indices', metavar='<LIST>')
parser.add_option('-b','--black', dest='blacklist', action='extend', type='string', \
help='black list of microstructure indices', metavar='<LIST>')
parser.set_defaults(pos = 'pos')
parser.set_defaults(index = 'microstructure')
parser.set_defaults(whitelist = [])
parser.set_defaults(blacklist = [])
(options,filenames) = parser.parse_args()
datainfo = { # list of requested labels per datatype
'scalar': {'len':1,
'label':[]},
'vector': {'len':3,
'label':[]},
}
if options.pos != None: datainfo['vector']['label'] += [options.pos]
if options.index != None: datainfo['scalar']['label'] += [options.index]
options.whitelist = map(int,options.whitelist)
options.blacklist = map(int,options.blacklist)
#--- 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(os.path.splitext(name)[0]+'.seeds','w'),
'croak':sys.stdout,
})
#--- 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')
theTable = damask.ASCIItable(file['input'],file['output'],buffered = False)
theTable.head_read()
# --------------- figure out columns to process
active = {}
column = {}
head = []
for datatype,info in datainfo.items():
for label in info['label']:
foundIt = False
for key in ['1_'+label,label]:
if key in theTable.labels:
foundIt = True
if datatype not in active: active[datatype] = []
if datatype not in column: column[datatype] = {}
active[datatype].append(label)
column[datatype][label] = theTable.labels.index(key) # remember columns of requested data
if not foundIt:
file['croak'].write('column %s not found...\n'%label)
break
# ------------------------------------------ process data ---------------------------------------
theTable.data_readArray(list(itertools.chain.from_iterable(map(lambda x:[x+i for i in range(datainfo['vector']['len'])],
[column['vector'][label] for label in active['vector']]))) +
[column['scalar'][label] for label in active['scalar']])
#--- finding bounding box ------------------------------------------------------------------------------------
boundingBox = numpy.array((numpy.amin(theTable.data[:,0:3],axis=0),numpy.amax(theTable.data[:,0:3],axis=0)))
#--- rescaling coordinates ------------------------------------------------------------------------------------
theTable.data[:,0:3] -= boundingBox[0,:]
theTable.data[:,0:3] /= boundingBox[1,:]-boundingBox[0,:]
#--- filtering of grain voxels ------------------------------------------------------------------------------------
mask = numpy.logical_and(\
numpy.ones_like(theTable.data[:,3],bool) \
if options.whitelist == [] \
else numpy.in1d(theTable.data[:,3].ravel(), options.whitelist).reshape(theTable.data[:,3].shape),
numpy.ones_like(theTable.data[:,3],bool) \
if options.blacklist == [] \
else numpy.invert(numpy.in1d(theTable.data[:,3].ravel(), options.blacklist).reshape(theTable.data[:,3].shape))
)
theTable.data = theTable.data[mask]
# ------------------------------------------ output result ---------------------------------------
# ------------------------------------------ assemble header ---------------------------------------
theTable.info = [
scriptID,
'size %s'%(' '.join(list(itertools.chain.from_iterable(zip(['x','y','z'],
map(str,boundingBox[1,:]-boundingBox[0,:])))))),
]
theTable.labels_clear()
theTable.labels_append(['x','y','z','microstructure']) # implicitly switching label processing/writing on
theTable.head_write()
theTable.data_writeArray()
theTable.output_flush()
file['input'].close() # close input ASCII table
if file['name'] != 'STDIN':
file['output'].close() # close output ASCII table