Method ReadArrayValues

IO/XML/vtkXMLReader.cxx:977–1017

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//------------------------------------------------------------------------------
int vtkXMLReader::ReadArrayValues(vtkXMLDataElement* da, vtkIdType arrayIndex,
  vtkAbstractArray* array, vtkIdType startIndex, vtkIdType numValues, FieldType fieldType)
{
  // Skip real read if aborting.
  if (this->AbortExecute)
  {
    return 0;
  }
  this->InReadData = 1;
  int result;
  vtkArrayIterator* iter = array->NewIterator();
  if (arrayIndex + numValues > array->GetNumberOfValues())
  {
    vtkErrorMacro("Array has " << array->GetNumberOfValues() << " allocated elements, but "
                               << arrayIndex + numValues << " were requested to be read");
    return 0;
  }
  switch (array->GetDataType())
  {
    vtkArrayIteratorTemplateMacro(result = vtkXMLDataReaderReadArrayValues(da, this->XMLParser,
                                    arrayIndex, static_cast<VTK_TT*>(iter), startIndex, numValues));
    default:
      result = 0;
  }
  if (iter)
  {
    iter->Delete();
  }

  this->ConvertGhostLevelsToGhostType(fieldType, array, startIndex, numValues);
  // Marking the array modified is essential, since otherwise, when reading
  // multiple time-steps, the array does not realize that its contents may have
  // changed and does not recompute the array ranges.
  // This becomes an issue only because we reuse the vtkAbstractArray* instance
  // when reading time-steps. The array is allocated only for the first timestep
  // read (see vtkXMLReader::ReadXMLData() and its use of
  // this->TimeStepWasReadOnce flag).
  array->Modified();
  this->InReadData = 0;
  return result;
}

//------------------------------------------------------------------------------
int vtkXMLReader::ReadArrayTuples(vtkXMLDataElement* da, vtkIdType arrayTupleIndex,