old_contents: #!/usr/bin/env python
  import argparse
  import shutil
  from pkg_resources import resource_filename
  
  import icqsol_utils
  from icqsol.shapes.icqShapeManager import ShapeManager
  
  # Parse Command Line.
  parser = argparse.ArgumentParser()
  parser.add_argument('--input', dest='input', help='Shape dataset selected from history')
  parser.add_argument('--input_file_format_and_type', dest='input_file_format_and_type', help='Input file format and type')
  parser.add_argument('--input_dataset_type', dest='input_dataset_type', help='Input dataset_type')
  parser.add_argument('--max_edge_length', dest='max_edge_length', type=float, default='0', help='Maximum edge length')
  parser.add_argument('--texture', dest='texture', default='stone', help='Select texture (currently stone, wood, or checkerboard)')
  parser.add_argument('--output', dest='output', help='Output dataset')
  parser.add_argument('--output_vtk_type', dest='output_vtk_type', help='Output VTK type')
  
  args = parser.parse_args()
  
  input_format, input_file_type = icqsol_utils.get_format_and_type(args.input_file_format_and_type)
  tmp_dir = icqsol_utils.get_temp_dir()
  
  # Instantiate a ShapeManager for loading the input.
  if input_format == icqsol_utils.VTK:
      shape_mgr = ShapeManager(file_format=input_format, vtk_dataset_type=args.input_dataset_type)
  else:
      shape_mgr = ShapeManager(file_format=input_format)
  
  # Get the vtk polydata from the input dataset.
  vtk_poly_data = shape_mgr.loadAsVtkPolyData(args.input)
  
  # Add texture. We use setuptools, which installs the package as a python "egg", 
  # essentially a zip file containing the modules and data files. Must use resource_filename
  # to access the data files.
  texture_name_to_filename = {
      'stone': resource_filename('icqsol', 'textures/220px-COnglomerate-sandstone_layers_Nerriga.jpg'),
      'wood': resource_filename('icqsol', 'textures/Swietenia_macrophylla_wood.jpg'),
      'checkerboard': resource_filename('icqsol', 'textures/checkerboard.png'),
  }
  
  # Selected texture is "stone" if the texture name does not match any of our values.s
  texture_file = texture_name_to_filename.get(args.texture, 'stone')
  vtk_poly_data = shape_mgr.addTextureToVtkPolyData(vtk_poly_data, texture_file=texture_file, max_edge_length=args.max_edge_length)
  
  # Define the output file format and type (the output_format can only be 'vtk').
  output_format, output_file_type = icqsol_utils.get_format_and_type(args.output_vtk_type)
  tmp_output_path = icqsol_utils.get_temporary_file_path(tmp_dir, output_format)
  
  # Make sure the ShapeManager's writer is vtk.
  shape_mgr.setWriter(file_format=icqsol_utils.VTK, vtk_dataset_type=icqsol_utils.POLYDATA)
  
  # Save the output.
  shape_mgr.saveVtkPolyData(vtk_poly_data=vtk_poly_data, file_name=tmp_output_path, file_type=output_file_type)
  shutil.move(tmp_output_path, args.output)
  
new_contents: #!/usr/bin/env python
  import argparse
  import shutil
  from pkg_resources import resource_filename
  
  import icqsol_utils
  from icqsol.shapes.icqShapeManager import ShapeManager
  
  # Parse Command Line.
  parser = argparse.ArgumentParser()
  parser.add_argument('--input', dest='input', help='Shape dataset selected from history')
  parser.add_argument('--input_file_format_and_type', dest='input_file_format_and_type', help='Input file format and type')
  parser.add_argument('--input_dataset_type', dest='input_dataset_type', help='Input dataset_type')
  parser.add_argument('--max_edge_length', dest='max_edge_length', type=float, default='0', help='Maximum edge length')
  parser.add_argument('--texture', dest='texture', default='stone', help='Select texture (currently stone, wood, or checkerboard)')
  parser.add_argument('--output', dest='output', help='Output dataset')
  parser.add_argument('--output_vtk_type', dest='output_vtk_type', help='Output VTK type')
  
  args = parser.parse_args()
  
  input_format, input_file_type = icqsol_utils.get_format_and_type(args.input_file_format_and_type)
  tmp_dir = icqsol_utils.get_temp_dir()
  
  # Instantiate a ShapeManager for loading the input.
  if input_format == icqsol_utils.VTK:
      shape_mgr = ShapeManager(file_format=input_format, vtk_dataset_type=args.input_dataset_type)
  else:
      shape_mgr = ShapeManager(file_format=input_format)
  
  # Get the vtk polydata from the input dataset.
  vtk_poly_data = shape_mgr.loadAsVtkPolyData(args.input)
  
  # Add texture. We use setuptools, which installs the package as a python "egg", 
  # essentially a zip file containing the modules and data files. Must use resource_filename
  # to access the data files.
  texture_name_to_filename = {
      'stone': resource_filename('icqsol', 'textures/220px-COnglomerate-sandstone_layers_Nerriga.jpg'),
      'wood': resource_filename('icqsol', 'textures/Swietenia_macrophylla_wood.jpg'),
      'checkerboard': resource_filename('icqsol', 'textures/checkerboard.png'),
  }
  
  # Selected texture is "stone" if the texture name does not match any of our values.s
  texture_file = texture_name_to_filename.get(args.texture, 'stone')
  max_edge_length = args.max_edge_length
  if max_edge_length <= 0:
      # no refinement will be applied
      max_edge_length = float('inf') 
  vtk_poly_data = shape_mgr.addTextureToVtkPolyData(vtk_poly_data, texture_file=texture_file, max_edge_length=args.max_edge_length)
  
  # Define the output file format and type (the output_format can only be 'vtk').
  output_format, output_file_type = icqsol_utils.get_format_and_type(args.output_vtk_type)
  tmp_output_path = icqsol_utils.get_temporary_file_path(tmp_dir, output_format)
  
  # Make sure the ShapeManager's writer is vtk.
  shape_mgr.setWriter(file_format=icqsol_utils.VTK, vtk_dataset_type=icqsol_utils.POLYDATA)
  
  # Save the output.
  shape_mgr.saveVtkPolyData(vtk_poly_data=vtk_poly_data, file_name=tmp_output_path, file_type=output_file_type)
  shutil.move(tmp_output_path, args.output)
  
subject: make sure max_edge_length is non-zero when calling refine