VelocityStampedSubscriber QML Type

Subscribes to geometry_msgs::msg::VelocityStamped messages — This expresses the timestamped velocity vector of a frame 'body_frame_id' in the reference frame 'reference_frame_id' expressed from arbitrary observation frame 'header.frame_id'. More...

• List of all members, including inherited members

Properties

• bodyFrameId : string
• header : header
• message : velocityStamped
• referenceFrameId : string
• velocity : twist

Signals

• messageReceived(velocityStamped msg)

Detailed Description

- If the 'body_frame_id' and 'header.frame_id' are identical, the velocity is observed and defined in the local coordinates system of the body which is the usual use-case in mobile robotics and is also known as a body twist.

VelocityStampedSubscriber receives velocityStamped values from a ROS 2 topic. Set the topic and node properties, then connect to the messageReceived() signal.

See also VelocityStampedPublisher and velocityStamped.

Property Documentation

bodyFrameId : string

The bodyFrameId field of the last received message. Updated whenever a new message arrives. bodyFrameIdChanged is emitted on every update.

header : header

The header field of the last received message. Updated whenever a new message arrives. headerChanged is emitted on every update.

message : velocityStamped

The last message received on topic. Updated whenever a new message arrives.

referenceFrameId : string

The referenceFrameId field of the last received message. Updated whenever a new message arrives. referenceFrameIdChanged is emitted on every update.

velocity : twist

The velocity field of the last received message. Updated whenever a new message arrives. velocityChanged is emitted on every update.

Signal Documentation

messageReceived(velocityStamped msg)

Emitted when a new velocityStamped arrives on topic. msg contains the received value.