#!/usr/bin/env python # -*- coding: UTF-8 no BOM -*- import os,sys,string,re,math,numpy from optparse import OptionParser, OptionGroup, Option, SUPPRESS_HELP # ----------------------------- class extendedOption(Option): # ----------------------------- # used for definition of new option parser action 'extend', which enables to take multiple option arguments # taken from online tutorial http://docs.python.org/library/optparse.html ACTIONS = Option.ACTIONS + ("extend",) STORE_ACTIONS = Option.STORE_ACTIONS + ("extend",) TYPED_ACTIONS = Option.TYPED_ACTIONS + ("extend",) ALWAYS_TYPED_ACTIONS = Option.ALWAYS_TYPED_ACTIONS + ("extend",) def take_action(self, action, dest, opt, value, values, parser): if action == "extend": lvalue = value.split(",") values.ensure_value(dest, []).extend(lvalue) else: Option.take_action(self, action, dest, opt, value, values, parser) # ----------------------- MAIN ------------------------------- identifiers = { 'grid': ['a','b','c'], 'size': ['x','y','z'], 'origin': ['x','y','z'], } mappings = { 'grid': lambda x: int(x), 'size': lambda x: float(x), 'origin': lambda x: float(x), 'homogenization': lambda x: int(x), 'microstructures': lambda x: int(x), } parser = OptionParser(option_class=extendedOption, usage='%prog options [file[s]]', description = """ Scales a geometry description independently in x, y, and z direction in terms of grid and/or size. """ + string.replace('$Id$','\n','\\n') ) parser.add_option('-g', '--grid', dest='grid', type='int', nargs = 3, \ help='a,b,c grid of hexahedral box [unchanged]') parser.add_option('-s', '--size', dest='size', type='float', nargs = 3, \ help='x,y,z size of hexahedral box [unchanged]') parser.add_option('-2', '--twodimensional', dest='twoD', action='store_true', \ help='output geom file with two-dimensional data arrangement') parser.set_defaults(grid = [0,0,0]) parser.set_defaults(size = [0.0,0.0,0.0]) parser.set_defaults(twoD = False) (options, filenames) = parser.parse_args() # ------------------------------------------ setup file handles --------------------------------------- files = [] if filenames == []: files.append({'name':'STDIN', 'input':sys.stdin, 'output':sys.stdout, 'croak':sys.stderr, }) else: for name in filenames: if os.path.exists(name): files.append({'name':name, 'input':open(name), 'output':open(name+'_tmp','w'), 'croak':sys.stdout, }) # ------------------------------------------ loop over input files --------------------------------------- for file in files: if file['name'] != 'STDIN': file['croak'].write(file['name']+'\n') # get labels by either read the first row, or - if keyword header is present - the last line of the header firstline = file['input'].readline() m = re.search('(\d+)\s*head', firstline.lower()) if m: headerlines = int(m.group(1)) headers = [file['input'].readline() for i in range(headerlines)] else: headerlines = 1 headers = firstline content = file['input'].readlines() file['input'].close() info = { 'grid': numpy.array(options.grid), 'size': numpy.array(options.size), 'origin': numpy.zeros(3,'d'), 'microstructures': 0, 'homogenization': 0 } new_header = [] new_header.append('$Id$\n') for header in headers: headitems = map(str.lower,header.split()) if headitems[0] == 'resolution': headitems[0] = 'grid' if headitems[0] == 'dimension': headitems[0] = 'size' if headitems[0] in mappings.keys(): if headitems[0] in identifiers.keys(): for i in xrange(len(identifiers[headitems[0]])): info[headitems[0]][i] = \ mappings[headitems[0]](headitems[headitems.index(identifiers[headitems[0]][i])+1]) else: info[headitems[0]] = mappings[headitems[0]](headitems[1]) else: new_header.append(header) if numpy.all(info['grid'] == 0): file['croak'].write('no grid info found.\n') continue if numpy.all(info['size'] == 0.0): file['croak'].write('no size info found.\n') continue file['croak'].write('-- input --\n' +\ 'grid a b c: %s\n'%(' x '.join(map(str,info['grid']))) + \ 'size x y z: %s\n'%(' x '.join(map(str,info['size']))) + \ 'origin x y z: %s\n'%(' : '.join(map(str,info['origin']))) + \ 'homogenization: %i\n'%info['homogenization'] + \ 'microstructures: %i\n'%info['microstructures']) if options.grid == [0,0,0]: options.grid = info['grid'] if options.size == [0.0,0.0,0.0]: options.size = info['size'] microstructure = numpy.zeros(info['grid'],'i') i = 0 for line in content: for item in map(int,line.split()): microstructure[i%info['grid'][0], (i/info['grid'][0])%info['grid'][1], i/info['grid'][0] /info['grid'][1]] = item i += 1 info['microstructures'] = microstructure.max() formatwidth = 1+int(math.floor(math.log10(microstructure.max()))) file['croak'].write('-- output --\n' +\ 'grid a b c: %s\n'%(' x '.join(map(str,options.grid))) + \ 'size x y z: %s\n'%(' x '.join(map(str,options.size))) + \ 'microstructures: %i\n'%info['microstructures']) new_header.append("grid\ta %i\tb %i\tc %i\n"%(options.grid[0],options.grid[1],options.grid[2],)) new_header.append("size\tx %f\ty %f\tz %f\n"%(options.size[0],options.size[1],options.size[2],)) new_header.append("origin\tx %f\ty %f\tz %f\n"%(info['origin'][0],info['origin'][1],info['origin'][2],)) new_header.append("microstructures\t%i\n"%info['microstructures']) new_header.append("homogenization\t%i\n"%info['homogenization']) # ------------------------------------------ assemble header --------------------------------------- output = '%i\theader\n'%(len(new_header)) output += ''.join(new_header) # ------------------------------------- regenerate texture information ---------------------------------- for c in xrange(options.grid[2]): z = int(info['grid'][2]*(c+0.5)/options.grid[2])%info['grid'][2] for b in xrange(options.grid[1]): y = int(info['grid'][1]*(b+0.5)/options.grid[1])%info['grid'][1] for a in xrange(options.grid[0]): x = int(info['grid'][0]*(a+0.5)/options.grid[0])%info['grid'][0] output += str(microstructure[x,y,z]).rjust(formatwidth) + {True:' ',False:'\n'}[options.twoD] output += {True:'\n',False:''}[options.twoD] # ------------------------------------------ output result --------------------------------------- file['output'].write(output) if file['name'] != 'STDIN': file['input'].close() file['output'].close() os.rename(file['name']+'_tmp',file['name'])