#!/usr/bin/env python3
# -*- coding: UTF-8 no BOM -*-
import os,sys,math
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 option(s) [geomfile(s)]', description = """
Changes the (three-dimensional) canvas of a spectral geometry description.
Grid can be given as absolute or relative values, e.g. 16 16 16 or 2x 0.5x 32.
""", version = scriptID)
parser.add_option('-g',
'--grid',
dest = 'grid',
type = 'string', nargs = 3, metavar = ' '.join(['string']*3),
help = 'a,b,c grid of hexahedral box. [auto]')
parser.add_option('-o',
'--offset',
dest = 'offset',
type = 'int', nargs = 3, metavar = ' '.join(['int']*3),
help = 'a,b,c offset from old to new origin of grid [%default]')
parser.add_option('-f',
'--fill',
dest = 'fill',
type = 'float', metavar = 'float',
help = '(background) canvas grain index. "0" selects maximum microstructure index + 1 [%default]')
parser.add_option('--float',
dest = 'real',
action = 'store_true',
help = 'use float input')
parser.add_option('--blank',
dest = 'blank',
action = 'store_true',
help = 'blank out (optional) input canvas content')
parser.set_defaults(grid = ['0','0','0'],
offset = (0,0,0),
fill = 0,
real = False,
)
(options, filenames) = parser.parse_args()
datatype = 'f' if options.real else 'i'
options.grid = ['1','1','1'] if options.blank and options.grid == ['0','0','0'] else options.grid
options.fill = 1 if options.blank and options.fill == 0 else options.fill
# --- loop over input files -------------------------------------------------------------------------
if filenames == []: filenames = [None]
for name in filenames:
try: table = damask.ASCIItable(name = name,
buffered = False,
labeled = False)
except: continue
damask.util.report(scriptName,name)
if options.blank:
extra_header = []
info = {}
info['grid'] = np.zeros(3,dtype=int)
info['size'] = np.zeros(3,dtype=float)
info['origin'] = np.zeros(3,dtype=float)
info['microstructures'] = 0
info['homogenization'] = 1
else:
# --- interpret header ----------------------------------------------------------------------------
table.head_read()
info,extra_header = table.head_getGeom()
damask.util.report_geom(info)
errors = []
if np.any(info['grid'] < 1): errors.append('invalid grid a b c.')
if np.any(info['size'] <= 0.0): errors.append('invalid size x y z.')
if errors != []:
damask.util.croak(errors)
table.close(dismiss = True)
continue
# --- read data ------------------------------------------------------------------------------------
microstructure = table.microstructure_read(info['grid'],datatype).reshape(info['grid'],order='F') # read microstructure
# --- do work ------------------------------------------------------------------------------------
newInfo = {
'grid': np.zeros(3,'i'),
'origin': np.zeros(3,'d'),
'microstructures': 0,
}
newInfo['grid'] = np.array([int(o*float(n.translate(None,'xX'))) if n[-1].lower() == 'x'\
else int(n) for o,n in zip(info['grid'],options.grid)],'i')
newInfo['grid'] = np.where(newInfo['grid'] > 0, newInfo['grid'],info['grid'])
microstructure_cropped = np.zeros(newInfo['grid'],datatype)
microstructure_cropped.fill(options.fill if options.real or options.fill > 0 else microstructure.max()+1)
if not options.blank:
xindex = np.arange(max(options.offset[0],0),min(options.offset[0]+newInfo['grid'][0],info['grid'][0]))
yindex = np.arange(max(options.offset[1],0),min(options.offset[1]+newInfo['grid'][1],info['grid'][1]))
zindex = np.arange(max(options.offset[2],0),min(options.offset[2]+newInfo['grid'][2],info['grid'][2]))
translate_x = [i - options.offset[0] for i in xindex]
translate_y = [i - options.offset[1] for i in yindex]
translate_z = [i - options.offset[2] for i in zindex]
if 0 in map(len,[xindex,yindex,zindex,translate_x,translate_y,translate_z]):
damask.util.croak('invaldid combination of grid and offset.')
table.close(dismiss = True)
continue
microstructure_cropped[min(translate_x):max(translate_x)+1,
min(translate_y):max(translate_y)+1,
min(translate_z):max(translate_z)+1] \
= microstructure[min(xindex):max(xindex)+1,
min(yindex):max(yindex)+1,
min(zindex):max(zindex)+1]
newInfo['size'] = info['size']/info['grid']*newInfo['grid'] if np.all(info['grid'] > 0) else newInfo['grid']
newInfo['origin'] = info['origin']+(info['size']/info['grid'] if np.all(info['grid'] > 0) \
else newInfo['size']/newInfo['grid'])*options.offset
newInfo['microstructures'] = microstructure_cropped.max()
# --- report ---------------------------------------------------------------------------------------
remarks = []
errors = []
if (any(newInfo['grid'] != info['grid'])):
remarks.append('--> grid a b c: {}'.format(' x '.join(map(str,newInfo['grid']))))
if (any(newInfo['size'] != info['size'])):
remarks.append('--> size x y z: {}'.format(' x '.join(map(str,newInfo['size']))))
if (any(newInfo['origin'] != info['origin'])):
remarks.append('--> origin x y z: {}'.format(' : '.join(map(str,newInfo['origin']))))
if ( newInfo['microstructures'] != info['microstructures']):
remarks.append('--> microstructures: {}'.format(newInfo['microstructures']))
if np.any(newInfo['grid'] < 1): errors.append('invalid new grid a b c.')
if np.any(newInfo['size'] <= 0.0): errors.append('invalid new size x y z.')
if remarks != []: damask.util.croak(remarks)
if errors != []:
damask.util.croak(errors)
table.close(dismiss = True)
continue
# --- write header ---------------------------------------------------------------------------------
table.info_clear()
table.info_append(extra_header+[
scriptID + ' ' + ' '.join(sys.argv[1:]),
"grid\ta {}\tb {}\tc {}".format(*newInfo['grid']),
"size\tx {}\ty {}\tz {}".format(*newInfo['size']),
"origin\tx {}\ty {}\tz {}".format(*newInfo['origin']),
"homogenization\t{}".format(info['homogenization']),
"microstructures\t{}".format(newInfo['microstructures']),
])
table.labels_clear()
table.head_write()
table.output_flush()
# --- write microstructure information ------------------------------------------------------------
format = '%g' if options.real else '%{}i'.format(int(math.floor(math.log10(microstructure_cropped.max())+1)))
table.data = microstructure_cropped.reshape((newInfo['grid'][0],newInfo['grid'][1]*newInfo['grid'][2]),order='F').transpose()
table.data_writeArray(format,delimiter=' ')
# --- output finalization --------------------------------------------------------------------------
table.close() # close ASCII table