170 lines
7.6 KiB
Python
Executable File
170 lines
7.6 KiB
Python
Executable File
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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import os,sys,math,string,numpy, damask
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from optparse import OptionParser, OptionGroup, Option, SUPPRESS_HELP
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# -----------------------------
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class extendedOption(Option):
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# -----------------------------
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# used for definition of new option parser action 'extend', which enables to take multiple option arguments
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# taken from online tutorial http://docs.python.org/library/optparse.html
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ACTIONS = Option.ACTIONS + ("extend",)
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STORE_ACTIONS = Option.STORE_ACTIONS + ("extend",)
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TYPED_ACTIONS = Option.TYPED_ACTIONS + ("extend",)
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ALWAYS_TYPED_ACTIONS = Option.ALWAYS_TYPED_ACTIONS + ("extend",)
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def take_action(self, action, dest, opt, value, values, parser):
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if action == "extend":
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lvalue = value.split(",")
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values.ensure_value(dest, []).extend(lvalue)
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else:
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Option.take_action(self, action, dest, opt, value, values, parser)
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# --------------------------------------------------------------------
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# MAIN
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# --------------------------------------------------------------------
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parser = OptionParser(option_class=extendedOption, usage='%prog options [file[s]]', description = """
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generates geom file and material_config file using seeds file
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""" + string.replace('$Id$','\n','\\n')
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)
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parser.add_option('-d', '--dimension', dest='dimension', type='float', nargs = 3, \
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help='x,y,z dimension of specimen')
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parser.add_option('-r', '--resolution', dest='resolution', type='int', nargs = 3, \
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help='a,b,c resolution of specimen')
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parser.add_option('-o', '--outputName', dest='outputName', type='string', nargs = 1, \
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help='Output Name')
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parser.set_defaults(resolution = (0,0,0))
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parser.set_defaults(dimension = (0.0,0.0,0.0))
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parser.set_defaults(outputName = '')
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(options,filenames) = parser.parse_args()
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# ------------------------------------------ setup file handles ---------------------------------------
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files = []
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if filenames == []:
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files.append({'name':'STDIN', 'input':sys.stdin, 'output':sys.stdout})
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else:
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for name in filenames:
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if os.path.splitext(name)[1]=='': name = name+'.seeds'
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if options.outputName=='': options.outputName = name
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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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'geom':open(os.path.splitext(options.outputName)[0]+'.geom','w+'),\
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'material.config':open(os.path.splitext(options.outputName)[0]+'_material.config','w+')})
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# ------------------------------------------ loop over input files ---------------------------------------
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for file in files:
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spatialDim = 3
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unmapped = 0
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if file['name'] != 'STDIN': print file['name']
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Favg = numpy.array(([1.0,0.0,0.0],\
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[0.0,1.0,0.0],\
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[0.0,0.0,1.0]),'d')
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for lineCount, line in enumerate(file['input']):
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words = line.split()
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if('head' in line): headCount=int(words[0])+1
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if(lineCount<=headCount):
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if('grains'.lower()==words[0]):
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N_seeds=int(words[1])
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checkGrain=numpy.zeros(N_seeds)
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if 'resolution'==words[0] :
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if options.resolution==(0,0,0):
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resolution=[int(words[2]),int(words[4]),int(words[6])]
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else:
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resolution = [options.resolution[0],options.resolution[1],options.resolution[2]]
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if lineCount==headCount: # all header info there, allocating arrays
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if resolution[2]==1: spatialDim=2
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validDim = numpy.zeros(3)
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dimension = numpy.zeros(3)
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for i in xrange(3):
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if(options.dimension[i]>0): validDim[i]= 1
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for i in xrange(3):
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if(any(validDim) and options.dimension[i]==0):
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dimension[i] = max(numpy.array(options.dimension,dtype='float')/resolution) *resolution[i]
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print 'rescaling invalid dimension '+str(i+1)
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if(any(validDim)==0):
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print 'No valid dimension specified, rescaling all dimensions'
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for i in xrange(spatialDim): dimension[i]=1.0/max(resolution)*resolution[i]
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if(all(validDim)): dimension= [options.dimension[0],options.dimension[1],options.dimension[2]]
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coords = numpy.zeros((spatialDim,N_seeds),'d')
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eulers = numpy.zeros((N_seeds,3),'d')
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else:
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Npoints = resolution[0]*resolution[1]*resolution[2]
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coords[0:spatialDim,lineCount-headCount] = numpy.array(words[0:spatialDim],'d')
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eulers[lineCount-headCount,0:3] = words[3:6]
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undeformed = numpy.zeros((spatialDim,Npoints),'d').reshape(spatialDim,Npoints)
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for i in xrange(spatialDim):
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for j in xrange(N_seeds):
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if(coords[i][j]>=1.0 or coords[i][j]<0.0):
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print 'WARNING: Seed Coordinate '+ str(coords[i][j]) +' located outside Grid '
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digits = 1+int(math.log10(int(N_seeds)))
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file['geom'].write('3 header' +'\n')
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file['geom'].write('resolution a '+ str(resolution[0])+ ' b '+str(resolution[1])+ ' c '+str( resolution[2])+'\n')
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file['geom'].write('dimension x '+ str(dimension[0]) + ' y '+ str(dimension[1])+ ' z '+ str( dimension[2])+'\n')
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file['geom'].write('homogenization 1'+'\n')
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file['material.config'].write('<microstructure>'+'\n')
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for i in xrange(N_seeds):
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file['material.config'].write('[Grain' +str( i+1).zfill(digits)+']'+'\n')
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file['material.config'].write('crystallite 1'+'\n')
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file['material.config'].write('(constituent) phase 1 texture '+ str(i+1).zfill(digits)+ ' fraction 1.0'+'\n')
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file['material.config'].write('\n'+'<texture>'+'\n')
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for i in xrange(N_seeds):
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file['material.config'].write('[Grain'+ str(i+1).zfill(digits)+ ']'+'\n')
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file['material.config'].write('(gauss) phi1 '+ str(eulers[i][0])+ ' Phi '+ str(eulers[i][1])+ \
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' phi2 '+ str(eulers[i][2])+ ' scatter 0.0 fraction 1.0'+'\n')
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shift = dimension[0:spatialDim]/numpy.array( resolution,dtype='float')[0:spatialDim]*0.5 # shift by half of side length to center of element
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for i in xrange(Npoints):
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undeformed[0,i] = dimension[0]\
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* float(i % resolution[0])\
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/float( resolution[0])
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undeformed[1,i] = dimension[1]\
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* float(i// resolution[0] % resolution[1])\
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/float( resolution[1])
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if spatialDim==3:
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undeformed[2,i] = dimension[2]\
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* float(i// resolution[0]// resolution[1] % resolution[2])\
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/float( resolution[2])
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undeformed[0:spatialDim,i] += shift
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indices=damask.core.math.math_nearestNeighborSearch(spatialDim,Favg,numpy.array( dimension,dtype='float'),Npoints,N_seeds,undeformed,coords)
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for n in xrange(Npoints):
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file['geom'].write( str(indices[n]//3**spatialDim+1).zfill(digits)+{True:'\n',False:' '}[(n+1)% resolution[0] == 0])
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grainIndex=indices//3**spatialDim+1
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for i in xrange(1,N_seeds+1):
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if i not in grainIndex: unmapped+=1
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if(unmapped == 0): print 'All Grains Mapped'
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else: print 'Only '+str(N_seeds-unmapped )+' Grains mapped'
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file['geom'].close()
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file['material.config'].close()
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file['input'].close()
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