DAMASK_EICMD/processing/post/blowUp.py

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#!/usr/bin/env python
# -*- coding: UTF-8 no BOM -*-
import os,sys
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 = """
Blows up each value to a surrounding data block of size 'packing' thus increasing the former resolution
to resolution*packing.
""", version = scriptID)
parser.add_option('-c','--coordinates',
dest = 'coords', metavar = 'string',
help = 'column label of coordinates [%default]')
parser.add_option('-p','--packing',
dest = 'packing', type = 'int', nargs = 3, metavar = 'int int int',
help = 'dimension of packed group [%default]')
parser.add_option('-g','--grid',
dest = 'resolution', type = 'int', nargs = 3, metavar = 'int int int',
help = 'resolution in x,y,z [autodetect]')
parser.add_option('-s','--size',
dest = 'dimension', type = 'float', nargs = 3, metavar = 'int int int',
help = 'dimension in x,y,z [autodetect]')
parser.set_defaults(coords = 'pos',
packing = (2,2,2),
grid = (0,0,0),
size = (0.0,0.0,0.0),
)
(options,filenames) = parser.parse_args()
options.packing = np.array(options.packing)
prefix = 'blowUp{}x{}x{}_'.format(*options.packing)
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# --- loop over input files -------------------------------------------------------------------------
if filenames == []: filenames = [None]
for name in filenames:
try: table = damask.ASCIItable(name = name,
outname = os.path.join(os.path.dirname(name),
prefix+os.path.basename(name)) if name else name,
buffered = False)
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except: continue
damask.util.report(scriptName,name)
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# ------------------------------------------ read header ------------------------------------------
table.head_read()
# ------------------------------------------ sanity checks ----------------------------------------
errors = []
remarks = []
if table.label_dimension(options.coords) != 3: errors.append('coordinates {} are not a vector.'.format(options.coords))
else: colCoord = table.label_index(options.coords)
colElem = table.label_index('elem')
if remarks != []: damask.util.croak(remarks)
if errors != []:
damask.util.croak(errors)
table.close(dismiss = True)
continue
# --------------- figure out size and grid ---------------------------------------------------------
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table.data_readArray(options.coords)
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coords = [np.unique(table.data[:,i]) for i in xrange(3)]
mincorner = np.array(map(min,coords))
maxcorner = np.array(map(max,coords))
grid = np.array(map(len,coords),'i')
size = grid/np.maximum(np.ones(3,'d'), grid-1.0) * (maxcorner-mincorner) # size from edge to edge = dim * n/(n-1)
size = np.where(grid > 1, size, min(size[grid > 1]/grid[grid > 1])) # spacing for grid==1 set to smallest among other spacings
packing = np.array(options.packing,'i')
outSize = grid*packing
# ------------------------------------------ assemble header --------------------------------------
table.info_append(scriptID + '\t' + ' '.join(sys.argv[1:]))
table.head_write()
# ------------------------------------------ process data -------------------------------------------
table.data_rewind()
data = np.zeros(outSize.tolist()+[len(table.labels)])
p = np.zeros(3,'i')
for p[2] in xrange(grid[2]):
for p[1] in xrange(grid[1]):
for p[0] in xrange(grid[0]):
d = p*packing
table.data_read()
data[d[0]:d[0]+packing[0],
d[1]:d[1]+packing[1],
d[2]:d[2]+packing[2],
: ] = np.tile(np.array(table.data_asFloat(),'d'),packing.tolist()+[1]) # tile to match blowUp voxel size
elementSize = size/grid/packing
elem = 1
for c in xrange(outSize[2]):
for b in xrange(outSize[1]):
for a in xrange(outSize[0]):
data[a,b,c,colCoord:colCoord+3] = [a+0.5,b+0.5,c+0.5]*elementSize
if colElem != -1: data[a,b,c,colElem] = elem
table.data = data[a,b,c,:].tolist()
outputAlive = table.data_write() # output processed line
elem += 1
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# ------------------------------------------ output finalization -----------------------------------
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table.close() # close input ASCII table (works for stdin)