Trk::TrackParametersIdHelper Node1 Trk::TrackParametersIdHelper - m_version + TrackParametersIdHelper() + encode() + encodeInValidIdentifier() + isValid() + isEntryToVolume() + technology() + caloSample() - setVersion() Node2 Trk::BitField< unsigned int > - m_offset - m_bits - m_maxValue - m_mask + BitField() + encode() + decode() Node2->Node1 -m_caloSamplingField -m_isEntryToLayerField -m_technologyField -m_validField -m_versionField