Template Class LocalizationFilter

Class Documentation

template<class T>
class maplab::LocalizationFilter

Public Functions

LocalizationFilter()

Constructor.

The RosFilter constructor makes sure that anyone using this template is doing so with the correct object type

~LocalizationFilter()

Destructor.

Clears out the message filters and topic subscribers.

void reset()

Resets the filter to its initial state.

void initialize(const common::LocalizationResult &T_G_M_init, const aslam::Transformation &T_M_B)
bool localizationCallback(const common::LocalizationResult &localization, const vio::ViNodeState &T_M_B_buffered)

Callback method for receiving all localization messages.

Parameters

  • localization – [in] - The Localization Result from world - base_link

  • T_M_B_buffered – [in] - The odometry estimate from mission - base_link

inline int64_t getLastMessageTimeNs()
void getFusedLocalization(common::LocalizationResult *fused_localization_result) const
inline bool isInitialized() const

Protected Functions

void localizationResultToMeasurement(const common::LocalizationResult &msg, LocalizationFilterMeasurement &localization_G_B)

Converts a localization result for integration into the filter.

Parameters

  • msg – [in] - The localization message to prepare

  • localization_G_B – [out] - The localization in the desired format (base_link - global)

void aslamTransformationToStateVector(const aslam::Transformation &transformation, Eigen::VectorXd &state_vector) const

Protected Attributes

std::atomic<int64_t> last_message_time_
common::LocalizationMode localization_mode_
T filter_

Our filter (EKF, UKF, etc.)

std::vector<size_t> update_vector_

Which entries of the filter state are being updated by a measurement.

Currently set to true for all of them, but might be useful for extensions of the filter state later on.