Function vtkXMLDataReaderReadArrayValues

IO/XML/vtkXMLReader.cxx:797–831

//------------------------------------------------------------------------------
template <class iterT>
int vtkXMLDataReaderReadArrayValues(vtkXMLDataElement* da, vtkXMLDataParser* xmlparser,
  vtkIdType arrayIndex, iterT* iter, vtkIdType startIndex, vtkIdType numValues)
{
  if (!iter)
  {
    return 0;
  }
  vtkAbstractArray* array = iter->GetArray();
  // XML Reader only creates AOS arrays.
  auto aosArray = vtkAOSDataArrayTemplate<typename iterT::ValueType>::FastDownCast(array);
  assert(aosArray != nullptr);
  // Number of expected words:
  size_t numWords = array->GetDataType() != VTK_BIT ? numValues : ((numValues + 7) / 8);
  int result;
  void* data = aosArray->GetPointer(arrayIndex);
  if (da->GetAttribute("offset"))
  {
    vtkTypeInt64 offset = 0;
    da->GetScalarAttribute("offset", offset);
    result = (xmlparser->ReadAppendedData(
                offset, data, startIndex, numWords, array->GetDataType()) == numWords);
  }
  else
  {
    int isAscii = 1;
    const char* format = da->GetAttribute("format");
    if (format && (strcmp(format, "binary") == 0))
    {
      isAscii = 0;
    }
    result = (xmlparser->ReadInlineData(
                da, isAscii, data, startIndex, numWords, array->GetDataType()) == numWords);
  }
  return result;
}

//------------------------------------------------------------------------------
template <>