Method EnforceColumnName

IO/Infovis/vtkTemporalDelimitedTextReader.cxx:208–261

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
bool vtkTemporalDelimitedTextReader::EnforceColumnName()
{
  this->InternalColumnName = "";

  if (this->TimeColumnName.empty() && this->TimeColumnId == -1)
  {
    // No user specified input, the reader simply output the whole content of
    // the input file.
    return true;
  }

  // Set TimeColumnName from user input
  if (this->TimeColumnId != -1)
  {
    // use id to retrieve column
    if (this->TimeColumnId >= 0 && this->TimeColumnId < this->ReadTable->GetNumberOfColumns())
    {
      this->InternalColumnName = this->ReadTable->GetColumnName(this->TimeColumnId);
    }
    else
    {
      vtkErrorMacro("Invalid column id: " << this->TimeColumnId);
      return false;
    }
  }
  else if (!this->TimeColumnName.empty())
  {
    // use name to retrieve column
    vtkAbstractArray* arr = this->ReadTable->GetColumnByName(this->TimeColumnName.c_str());
    if (arr == nullptr)
    {
      vtkErrorMacro("Invalid column name: " << this->TimeColumnName);
      return false;
    }
    else
    {
      // check valid array
      vtkDataArray* numArr = vtkDataArray::SafeDownCast(arr);
      if (numArr == nullptr)
      {
        vtkErrorMacro("Not a numerical column: " << this->TimeColumnName);
        return false;
      }
      else if (numArr->GetNumberOfComponents() != 1)
      {
        vtkErrorMacro("The time column must have only one component: " << this->TimeColumnName);
        return false;
      }
    }
    this->InternalColumnName = this->TimeColumnName;
  }

  return true;
}

//------------------------------------------------------------------------------
void vtkTemporalDelimitedTextReader::InternalModified()