Function ReadHeader

IO/Core/vtkArrayReader.cxx:44–92

}

void ReadHeader(
  istream& stream, vtkArrayExtents& extents, vtkArrayExtents::SizeT& non_null_size, vtkArray* array)
{
  if (!array)
    throw std::runtime_error("Missing array.");

  // Load the array name ...
  std::string name;
  std::getline(stream, name);
  array->SetName(name);

  // Load array extents ...
  std::string extents_string;
  std::getline(stream, extents_string);
  std::istringstream extents_buffer(extents_string);

  vtkArrayExtents::CoordinateT extent;
  std::vector<vtkArrayExtents::CoordinateT> temp_extents;
  for (extents_buffer >> extent; extents_buffer; extents_buffer >> extent)
    temp_extents.push_back(extent);

  extents.SetDimensions(0);
  while (temp_extents.size() > 1)
  {
    const vtkArrayExtents::CoordinateT begin = temp_extents.front();
    temp_extents.erase(temp_extents.begin());
    const vtkArrayExtents::CoordinateT end = temp_extents.front();
    temp_extents.erase(temp_extents.begin());
    extents.Append(vtkArrayRange(begin, end));
  }

  if (extents.GetDimensions() < 1)
    throw std::runtime_error("Array cannot have fewer than one dimension.");

  if (temp_extents.empty())
    throw std::runtime_error("Missing non null size.");

  non_null_size = temp_extents.back();

  array->Resize(extents);

  // Load dimension-labels ...
  for (vtkArrayExtents::DimensionT i = 0; i != extents.GetDimensions(); ++i)
  {
    std::string label;
    std::getline(stream, label);
    array->SetDimensionLabel(i, label);
  }
}

void ReadEndianOrderMark(istream& stream, bool& swap_endian)
{