DAMASK_EICMD/processing/post/blowUp.py

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#!/usr/bin/env python3
import os
import sys
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from io import StringIO
from optparse import OptionParser
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from scipy import ndimage
import numpy as np
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 [ASCIItable(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 = 'pos', 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',
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help = 'grid in x,y,z (optional)')
parser.add_option('-s','--size',
dest = 'dimension', type = 'float', nargs = 3, metavar = 'int int int',
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help = 'size in x,y,z (optional)')
parser.set_defaults(pos = 'pos',
packing = (2,2,2),
grid = (0,0,0),
size = (0.0,0.0,0.0),
)
(options,filenames) = parser.parse_args()
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if filenames == []: filenames = [None]
options.packing = np.array(options.packing)
prefix = 'blowUp{}x{}x{}_'.format(*options.packing)
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for name in filenames:
damask.util.report(scriptName,name)
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table = damask.Table.from_ASCII(StringIO(''.join(sys.stdin.read())) if name is None else name)
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grid,size,origin = damask.grid_filters.cell_coord0_gridSizeOrigin(table.get(options.pos))
packing = np.array(options.packing,'i')
outSize = grid*packing
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data = table.data.values.reshape(tuple(grid)+(-1,),order='F')
blownUp = ndimage.interpolation.zoom(data,tuple(packing)+(1,),order=0,mode='nearest').reshape(outSize.prod(),-1,order='F')
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table = damask.Table(blownUp,table.shapes,table.comments)
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coords = damask.grid_filters.cell_coord0(outSize,size,origin)
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table.set(options.pos,coords.reshape(-1,3,order='F'))
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table.set('elem',np.arange(1,outSize.prod()+1))
outname = os.path.join(os.path.dirname(name),prefix+os.path.basename(name))
table.to_ASCII(sys.stdout if name is None else outname)