Method ReadDataObject

IO/XML/vtkXMLCompositeDataReader.cxx:466–495

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//------------------------------------------------------------------------------
vtkDataObject* vtkXMLCompositeDataReader::ReadDataObject(
  vtkXMLDataElement* xmlElem, const char* filePath)
{
  // Get the reader for this file
  std::string fileName = this->GetFileNameFromXML(xmlElem, filePath);
  if (fileName.empty())
  { // No filename in XML element. Not necessarily an error.
    return nullptr;
  }
  vtkXMLReader* reader = this->GetReaderForFile(fileName);
  if (!reader)
  {
    vtkErrorMacro("Could not create reader for " << fileName);
    return nullptr;
  }
  reader->SetFileName(fileName.c_str());
  reader->GetPointDataArraySelection()->CopySelections(this->PointDataArraySelection);
  reader->GetCellDataArraySelection()->CopySelections(this->CellDataArraySelection);
  reader->GetColumnArraySelection()->CopySelections(this->ColumnArraySelection);
  reader->Update();
  vtkDataObject* output = reader->GetOutputDataObject(0);
  if (!output)
  {
    return nullptr;
  }

  vtkDataObject* outputCopy = output->NewInstance();
  outputCopy->ShallowCopy(output);
  return outputCopy;
}

//------------------------------------------------------------------------------
vtkDataSet* vtkXMLCompositeDataReader::ReadDataset(vtkXMLDataElement* xmlElem, const char* filePath)