Method ReadData

IO/Legacy/vtkGenericDataObjectReader.cxx:49–90

template <typename ReaderT, typename DataT>
void vtkGenericDataObjectReader::ReadData(
  const char* fname, const char* DataClass, vtkDataObject* Output)
{
  ReaderT* const reader = ReaderT::New();

  reader->SetFileName(fname);
  reader->SetInputArray(this->GetInputArray());
  reader->SetInputString(this->GetInputString(), this->GetInputStringLength());
  reader->SetReadFromInputString(this->GetReadFromInputString());
  reader->SetScalarsName(this->GetScalarsName());
  reader->SetVectorsName(this->GetVectorsName());
  reader->SetNormalsName(this->GetNormalsName());
  reader->SetTensorsName(this->GetTensorsName());
  reader->SetTCoordsName(this->GetTCoordsName());
  reader->SetLookupTableName(this->GetLookupTableName());
  reader->SetFieldDataName(this->GetFieldDataName());
  reader->SetReadAllScalars(this->GetReadAllScalars());
  reader->SetReadAllVectors(this->GetReadAllVectors());
  reader->SetReadAllNormals(this->GetReadAllNormals());
  reader->SetReadAllTensors(this->GetReadAllTensors());
  reader->SetReadAllColorScalars(this->GetReadAllColorScalars());
  reader->SetReadAllTCoords(this->GetReadAllTCoords());
  reader->SetReadAllFields(this->GetReadAllFields());
  reader->Update();

  // copy the header from the reader.
  this->SetHeader(reader->GetHeader());

  // Can we use the old output?
  if (!(Output && strcmp(Output->GetClassName(), DataClass) == 0))
  {
    // Hack to make sure that the object is not modified
    // with SetNthOutput. Otherwise, extra executions occur.
    const vtkTimeStamp mtime = this->MTime;
    Output = DataT::New();
    this->GetExecutive()->SetOutputData(0, Output);
    Output->Delete();
    this->MTime = mtime;
  }
  Output->ShallowCopy(reader->GetOutput());
  reader->Delete();
}

vtkGenericDataObjectReader::vtkGenericDataObjectReader() = default;
vtkGenericDataObjectReader::~vtkGenericDataObjectReader() = default;