DAMASK_EICMD/processing/post/vtk_addData.py

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#!/usr/bin/env python
# -*- coding: UTF-8 no BOM -*-
import os, sys, string, glob, re
import damask
from optparse import OptionParser
# -----------------------------
def findTag(filename,tag):
# -----------------------------
with open(filename,'r') as myfile:
mypattern = re.compile(str(tag))
for line in myfile:
if mypattern.search(line): return True
return False
# -----------------------------
# MAIN FUNCTION STARTS HERE
# -----------------------------
# --- input parsing
parser = OptionParser(usage='%prog [options] directory', description = """
Add data from an ASCII table to a VTK geometry file.
""" + string.replace('$Id$','\n','\\n')
)
parser.add_option('-s','--sub', action='store_true', dest='subdir', \
help='include files in subdirectories [%default]')
parser.set_defaults(subdir = False)
(options, dirname) = parser.parse_args()
# --- sanity checks
if dirname == []:
parser.print_help()
parser.error('no directory specified...')
else:
dirname = os.path.abspath(dirname[0]) # only use first argument
if not os.path.isdir(dirname):
parser.print_help()
parser.error('invalid directory "%s" specified...'%dirname)
# --- loop over "nodebased" and "ipbased" data files and
# copy data to corresponding geometry files
dataSetTag = {'nodebased':'POINT_DATA', 'ipbased':'CELL_DATA'}
for geomtype in ['nodebased','ipbased']:
for vtkfilename in glob.iglob(dirname+os.sep+'*'+geomtype+'*.vtk'):
if not os.path.dirname(vtkfilename) == dirname and not options.subdir: continue # include files in subdir?
datafilename = os.path.splitext(vtkfilename)[0] + '.txt'
if not os.path.exists(datafilename): continue # no corresponding datafile found
# --- read data from datafile
with open(datafilename,'r') as datafile: # open datafile in read mode
table = damask.ASCIItable(fileIn=datafile) # use ASCIItable class to read data file
table.head_read() # read ASCII header info
myData = []
while table.data_read(): # read line in datafile
myData.append(table.data)
myData = zip(*myData) # reorder data: first index now label, not node
# --- append data to vtkfile
with open(vtkfilename,'a') as vtkfile: # open vtkfile in append mode
print vtkfilename
if not findTag(vtkfilename,dataSetTag[geomtype]): # check if data set is already present...
vtkfile.write(dataSetTag[geomtype] + ' %i'%len(myData[0])) # ... if not, write keyword
for idx,label in enumerate(table.labels): # write data
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vtkfile.write('\nSCALARS '+label+' double 1\nLOOKUP_TABLE default\n') # all scalar data
vtkfile.write('\n'.join(map(str,myData[idx])))
# --------------------------- DONE --------------------------------