110 lines
4.1 KiB
Python
Executable File
110 lines
4.1 KiB
Python
Executable File
#!/usr/bin/env python
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# -*- coding: UTF-8 no BOM -*-
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import os,sys,string,re,vtk
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import numpy as np
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from optparse import OptionParser
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import damask
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scriptID = string.replace('$Id$','\n','\\n')
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scriptName = os.path.splitext(scriptID.split()[1])[0]
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#--------------------------------------------------------------------------------------------------
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# MAIN
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#--------------------------------------------------------------------------------------------------
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parser = OptionParser(option_class=damask.extendableOption, usage='%prog [file[s]]', description = """
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Produce VTK rectilinear mesh of structure data from geom description
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""", version = scriptID)
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parser.add_option('-m','--nodata',
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dest = 'data',
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action = 'store_false',
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help = 'generate mesh without microstructure index data')
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parser.set_defaults(data = True,
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)
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(options, filenames) = parser.parse_args()
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# --- loop over input files -------------------------------------------------------------------------
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if filenames == []: filenames = ['STDIN']
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for name in filenames:
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if not (name == 'STDIN' or os.path.exists(name)): continue
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table = damask.ASCIItable(name = name, outname = None,
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buffered = False, labeled = False, readonly = True)
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table.croak('\033[1m'+scriptName+'\033[0m'+(': '+name if name != 'STDIN' else ''))
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# --- interpret header ----------------------------------------------------------------------------
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table.head_read()
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info,extra_header = table.head_getGeom()
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table.croak(['grid a b c: %s'%(' x '.join(map(str,info['grid']))),
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'size x y z: %s'%(' x '.join(map(str,info['size']))),
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'origin x y z: %s'%(' : '.join(map(str,info['origin']))),
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'homogenization: %i'%info['homogenization'],
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'microstructures: %i'%info['microstructures'],
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])
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errors = []
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if np.any(info['grid'] < 1): errors.append('invalid grid a b c.')
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if np.any(info['size'] <= 0.0): errors.append('invalid size x y z.')
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if errors != []:
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file['croak'](errors)
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table.close(dismiss = True)
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continue
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# --- generate VTK rectilinear grid --------------------------------------------------------------------------------
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grid = vtk.vtkRectilinearGrid()
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grid.SetDimensions([x+1 for x in info['grid']])
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for i in xrange(3):
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temp = vtk.vtkDoubleArray()
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temp.SetNumberOfTuples(info['grid'][i]+1)
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for j in xrange(info['grid'][i]+1):
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temp.InsertTuple1(j,j*info['size'][i]/info['grid'][i]+info['origin'][i])
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if i == 0: grid.SetXCoordinates(temp)
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elif i == 1: grid.SetYCoordinates(temp)
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elif i == 2: grid.SetZCoordinates(temp)
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#--- read microstructure information --------------------------------------------------------------
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if options.data:
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microstructure = table.microstructure_read(info['grid']) # read microstructure
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structure = vtk.vtkIntArray()
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structure.SetName('Microstructures')
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for idx in microstructure:
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structure.InsertNextValue(idx)
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grid.GetCellData().AddArray(structure)
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# --- write data -----------------------------------------------------------------------------------
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if name == 'STDIN':
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writer = vtk.vtkRectilinearGridWriter()
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writer.WriteToOutputStringOn()
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writer.SetFileTypeToASCII()
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writer.SetHeader('# powered by '+scriptID)
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if vtk.VTK_MAJOR_VERSION <= 5: writer.SetInput(grid)
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else: writer.SetInputData(grid)
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writer.Write()
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sys.stdout.write(writer.GetOutputString()[0:writer.GetOutputStringLength()])
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else:
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(dir,filename) = os.path.split(name)
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writer = vtk.vtkXMLRectilinearGridWriter()
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writer.SetDataModeToBinary()
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writer.SetCompressorTypeToZLib()
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writer.SetFileName(os.path.join(dir,'mesh_'+os.path.splitext(filename)[0]
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+'.'+writer.GetDefaultFileExtension()))
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if vtk.VTK_MAJOR_VERSION <= 5: writer.SetInput(grid)
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else: writer.SetInputData(grid)
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writer.Write()
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table.close()
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