Ros2AckermannDriveStampedMessage#

Fully qualified name: isaacsim::ros2::bridge::Ros2AckermannDriveStampedMessage

class Ros2AckermannDriveStampedMessage : public isaacsim::ros2::bridge::Ros2Message#

Class implementing a ackermann_msgs/msg/AckermannDriveStamped.

Provides functionality to read and write ROS 2 AckermannDriveStamped messages that contain control commands for a vehicle with Ackermann steering.

Subclassed by isaacsim::ros2::bridge::Ros2AckermannDriveStampedMessageImpl

Public Functions

virtual void writeHeader(
const double timeStamp,
const std::string &frameId,
) = 0#

Write the message header.

Sets the header fields in a ROS 2 AckermannDriveStamped message.

Parameters:

  • timeStamp – [in] Time (seconds).

  • frameId – [in] Transform frame with which this data is associated.

virtual void readData(
double &timeStamp,
std::string &frameId,
double &steeringAngle,
double &steeringAngleVelocity,
double &speed,
double &acceleration,
double &jerk,
) = 0#

Read the message field values.

Extracts timestamp, frame ID, and Ackermann drive parameters from a ROS 2 AckermannDriveStamped message.

Parameters:

  • timeStamp – [out] Time (seconds).

  • frameId – [out] Transform frame with which this data is associated.

  • steeringAngle – [out] Virtual angle.

  • steeringAngleVelocity – [out] Rate of change.

  • speed – [out] Forward speed.

  • acceleration – [out] Acceleration.

  • jerk – [out] Jerk.

virtual void writeData(
const double &steeringAngle,
const double &steeringAngleVelocity,
const double &speed,
const double &acceleration,
const double &jerk,
) = 0#

Write the message field values from the given arguments.

Sets the Ackermann drive parameters in a ROS 2 AckermannDriveStamped message.

Parameters:

  • steeringAngle – [in] Virtual angle.

  • steeringAngleVelocity – [in] Rate of change.

  • speed – [in] Forward speed.

  • acceleration – [in] Acceleration.

  • jerk – [in] Jerk.

inline void *getPtr()#

Retrieves the message pointer.

Returns the pointer to the underlying ROS 2 message if it has been properly created and initialized.

Note

This method does not perform type checking - the caller is responsible for proper casting to the appropriate message type.

Returns:

Pointer to the message or nullptr if not initialized.

virtual const void *getTypeSupportHandle() = 0#

Gets the type support handle for the message.

Returns a pointer to the ROS IDL message type support data structure. The actual type depends on the message category:

  • Topic: rosidl_message_type_support_t

  • Service: rosidl_service_type_support_t

  • Action: rosidl_action_type_support_t

Returns:

Pointer to the type support structure or nullptr.

Protected Attributes

void *m_msg = nullptr#

Message pointer.