fixed small bugs.
modernized file treatment. improved Laguerre speed by a factor of 2 due to precalculating the squared weights.
This commit is contained in:
Philip Eisenlohr
parent
50bcfe6e0d
commit
129026662c
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@ -31,44 +31,50 @@ def meshgrid2(*arrs):
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return tuple(ans)
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def laguerreTessellation(undeformed, coords, weights):
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bestdist = np.ones(len(undeformed)) * np.finfo('d').max
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bestseed = np.zeros(len(undeformed))
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for i,seed in enumerate(coords):
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for copy in np.array([[1, 0, 0, ],
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[0, 1, 0, ],
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[0, 0, 1, ],
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[-1, 0, 0, ],
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[0, -1, 0, ],
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[0, 0, -1, ],
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[1, 1, 0, ],
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[1, 0, 1, ],
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[0, 1, 1, ],
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[-1, 1, 0, ],
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[-1, 0, 1, ],
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[0, -1, 1, ],
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[-1, -1, 0, ],
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[-1, 0, -1, ],
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[0, -1, -1, ],
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[1, -1, 0, ],
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[1, 0, -1, ],
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[0, 1, -1, ],
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[1, 1, 1, ],
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[-1, 1, 1, ],
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[1, -1, 1, ],
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[1, 1, -1, ],
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[-1, -1, -1, ],
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[1, -1, -1, ],
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[-1, 1, -1, ],
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[-1, -1, 1, ]]).astype(float):
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diff = undeformed - np.repeat((seed+info['size']*copy).reshape(3,1),len(undeformed),axis=1).T
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dist = np.sum(diff*diff,axis=1) - weights[i]
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bestseed = np.where(dist < bestdist, np.ones(len(undeformed))*(i+1),bestseed)
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bestdist = np.where(dist < bestdist, dist,bestdist)
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return bestseed
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weight = np.power(np.tile(weights, 27),2) # Laguerre weights (squared)
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micro = np.zeros(undeformed.shape[0])
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N = coords.shape[0] # Number of seeds points
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periodic = np.array([
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[ -1,-1,-1 ],
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[ 0,-1,-1 ],
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[ 1,-1,-1 ],
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[ -1, 0,-1 ],
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[ 0, 0,-1 ],
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[ 1, 0,-1 ],
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[ -1, 1,-1 ],
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[ 0, 1,-1 ],
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[ 1, 1,-1 ],
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[ -1,-1, 0 ],
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[ 0,-1, 0 ],
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[ 1,-1, 0 ],
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[ -1, 0, 0 ],
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[ 0, 0, 0 ],
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[ 1, 0, 0 ],
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[ -1, 1, 0 ],
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[ 0, 1, 0 ],
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[ 1, 1, 0 ],
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[ -1,-1, 1 ],
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[ 0,-1, 1 ],
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[ 1,-1, 1 ],
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[ -1, 0, 1 ],
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[ 0, 0, 1 ],
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[ 1, 0, 1 ],
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[ -1, 1, 1 ],
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[ 0, 1, 1 ],
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[ 1, 1, 1 ],
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]).astype(float)
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for i,vec in enumerate(periodic):
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seeds = np.append(seeds, coords+vec, axis=0) if i > 0 else coords+vec
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for i,point in enumerate(undeformed):
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tmp = np.repeat(point.reshape(3,1), N*27, axis=1).T
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dist = np.sum((tmp - seeds)*(tmp - seeds),axis=1) - weight
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micro[i] = np.argmin(dist)%N
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return micro
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# --------------------------------------------------------------------
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# MAIN
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@ -109,48 +115,39 @@ parser.add_option('-r', '--rnd', dest='randomSeed', type='int', metavar='int',
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help='seed of random number generator for second phase distribution [%default]')
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parser.add_option('--secondphase', type='float', dest='secondphase', metavar= 'float',
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help='volume fraction of randomly distribute second phase [%default]')
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parser.add_option('--laguerre', dest='laguerre', action='store_true',
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help='for weighted voronoi (Laguerre) tessellation [%default]')
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parser.set_defaults(grid = (0,0,0))
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parser.set_defaults(size = (0.0,0.0,0.0))
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parser.set_defaults(origin = (0.0,0.0,0.0))
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parser.set_defaults(homogenization = 1)
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parser.set_defaults(phase = 1)
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parser.set_defaults(crystallite = 1)
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parser.set_defaults(secondphase = 0.0)
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parser.set_defaults(config = False)
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parser.set_defaults(laguerre = False)
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parser.set_defaults(randomSeed = None)
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parser.add_option('-l', '--laguerre', dest='laguerre', action='store_true',
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help='use Laguerre (weighted Voronoi) tessellation [%default]')
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parser.set_defaults(grid = (0,0,0),
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size = (0.0,0.0,0.0),
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origin = (0.0,0.0,0.0),
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homogenization = 1,
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phase = 1,
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crystallite = 1,
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secondphase = 0.0,
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config = False,
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laguerre = False,
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randomSeed = None,
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)
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(options,filenames) = parser.parse_args()
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if options.secondphase > 1.0 or options.secondphase < 0.0:
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parser.error('volume fraction of second phase (%f) out of bounds...'%options.secondphase)
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#--- setup file handles ---------------------------------------------------------------------------
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files = []
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# --- loop over input files -------------------------------------------------------------------------
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if filenames == []:
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files.append({'name': 'STDIN',
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'input': sys.stdin,
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'output': sys.stdout,
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'croak': sys.stderr,
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})
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else:
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for name in filenames:
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if os.path.exists(name):
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files.append({'name': name,
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'input': open(name),
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'output': open(name+'_tmp','w'),
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'croak': sys.stdout,
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})
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filenames = ['STDIN']
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for name in filenames:
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if name == 'STDIN':
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file = {'name':'STDIN', 'input':sys.stdin, 'output':sys.stdout, 'croak':sys.stderr}
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file['croak'].write('\033[1m'+scriptName+'\033[0m\n')
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else:
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if not os.path.exists(name): continue
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file = {'name':name, 'input':open(name), 'output':open(name+'_tmp','w'), 'croak':sys.stderr}
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file['croak'].write('\033[1m'+scriptName+'\033[0m: '+file['name']+'\n')
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#--- loop over input files ------------------------------------------------------------------------
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for file in files:
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file['croak'].write('\033[1m' + scriptName + '\033[0m: ' + (file['name'] if file['name'] != 'STDIN' else '') + '\n')
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table = damask.ASCIItable(file['input'],file['output'],buffered = False)
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table.head_read()
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table = damask.ASCIItable(file['input'],file['output'],buffered=False) # make unbuffered ASCII_table
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table.head_read() # read ASCII header info
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labels = []
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if np.all(table.label_index(['1_coords','2_coords','3_coords']) != -1):
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@ -241,7 +238,7 @@ for file in files:
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#--- switch according to task ---------------------------------------------------------------------
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if options.config: # write config file
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phase=np.empty(info['microstructures'],'i')
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phase = np.empty(info['microstructures'],'i')
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phase.fill(options.phase)
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phase[0:int(float(info['microstructures'])*options.secondphase)] = options.phase+1
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randomSeed = int(os.urandom(4).encode('hex'), 16) if options.randomSeed == None else options.randomSeed # radom seed per file for second phase
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@ -286,10 +283,10 @@ for file in files:
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newInfo['microstructures'] = info['microstructures']
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for i in grainIDs:
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if i not in indices: newInfo['microstructures'] -= 1
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file['croak'].write('all' if [newInfo['microstructures'] == info['microstructures'] ] else 'only' +
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file['croak'].write(('all' if newInfo['microstructures'] == info['microstructures'] else 'only') +
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' %i'%newInfo['microstructures'] +
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'' if [newInfo['microstructures'] == info['microstructures']] else \
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'out of %i'%info['microstructures'] +
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('' if newInfo['microstructures'] == info['microstructures'] else \
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' out of %i'%info['microstructures']) +
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' grains mapped.\n')
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#--- write header ---------------------------------------------------------------------------------
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@ -312,8 +309,7 @@ for file in files:
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#--- output finalization --------------------------------------------------------------------------
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table.close()
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if file['name'] != 'STDIN':
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table.input_close()
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table.output_close()
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os.rename(file['name']+'_tmp',
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os.path.splitext(file['name'])[0] +'%s'%('_material.config' if options.config else '.geom'))
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