velocityWithCovarianceStamped QML Value Type

A timestamped velocity of a body whose frame is 'body_frame_id', measured relative to the reference frame 'reference_frame_id', with the velocity and covariance both expressed in the basis of the observation frame 'header.frame_id'. More...

Properties

• bodyFrameId : string
• header : header
• referenceFrameId : string
• velocity : twistWithCovariance

Detailed Description

- If 'body_frame_id' and 'header.frame_id' are identical, the velocity and covariance are expressed in the body's own basis. This is functionally equivalent to the body-twist convention used by 'geometry_msgs/TwistStamped'.

This message is the covariance-bearing analogue of 'geometry_msgs/VelocityStamped'.

velocityWithCovarianceStamped is a structured value type usable in QML. It maps directly to the geometry_msgs::msg::VelocityWithCovarianceStamped ROS 2 message type.

Construct a velocityWithCovarianceStamped in QML by assigning a JavaScript object whose keys are its component properties, or by setting those properties individually.

See also VelocityWithCovarianceStampedPublisher and VelocityWithCovarianceStampedSubscriber.

Property Documentation

bodyFrameId : string

header : header

referenceFrameId : string

velocity : twistWithCovariance