97 lines
3.4 KiB
Python
Executable File
97 lines
3.4 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,vtk
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import damask
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from optparse import OptionParser
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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 options [file[s]]', description = """
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Produce a VTK point cloud dataset based on coordinates given in an ASCIItable.
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""", version = scriptID)
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parser.add_option('-p','--position',
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dest = 'position',
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type = 'string', metavar = 'string',
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help = 'column label for coordinates [%default]')
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parser.set_defaults(position = 'pos',
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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 = [None]
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for name in filenames:
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try:
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table = damask.ASCIItable(name = name,
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buffered = False, readonly = True)
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except: continue
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damask.util.croak(damask.util.emph(scriptName)+(': '+name if name else ''))
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# --- interpret header ----------------------------------------------------------------------------
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table.head_read()
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errors = []
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remarks = []
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if table.label_dimension(options.position) != 3: errors.append('columns "{}" have dimension {}'.format(options.position,
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table.label_dimension(options.position)))
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if remarks != []: damask.util.croak(remarks)
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if errors != []:
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damask.util.croak(errors)
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table.close(dismiss=True)
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continue
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# ------------------------------------------ process data ---------------------------------------
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table.data_readArray(options.position)
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Polydata = vtk.vtkPolyData()
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Points = vtk.vtkPoints()
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Vertices = vtk.vtkCellArray()
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for p in table.data:
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id = Points.InsertNextPoint(p)
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Vertices.InsertNextCell(1)
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Vertices.InsertCellPoint(id)
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Polydata.SetPoints(Points)
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Polydata.SetVerts(Vertices)
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Polydata.Modified()
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if vtk.VTK_MAJOR_VERSION <= 5: Polydata.Update()
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# ------------------------------------------ output result ---------------------------------------
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if name:
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(dir,filename) = os.path.split(name)
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writer = vtk.vtkXMLPolyDataWriter()
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writer.SetDataModeToBinary()
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writer.SetCompressorTypeToZLib()
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writer.SetFileName(os.path.join(dir,os.path.splitext(filename)[0]+'_{}'.format(options.position) \
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+'.'+writer.GetDefaultFileExtension()))
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if vtk.VTK_MAJOR_VERSION <= 5: writer.SetInput(Polydata)
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else: writer.SetInputData(Polydata)
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writer.Write()
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else:
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writer = vtk.vtkPolyDataWriter()
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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(Polydata)
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else: writer.SetInputData(Polydata)
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writer.Write()
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sys.stdout.write(writer.GetOutputString()[0:writer.GetOutputStringLength()])
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table.close() # close input ASCII table
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