TransformStampedSubscriber QML Type

Subscribes to geometry_msgs::msg::TransformStamped messages — This expresses a transform from coordinate frame header.frame_id to the coordinate frame child_frame_id at the time of header.stamp. More...

• List of all members, including inherited members

Properties

• childFrameId : string
• header : header
• message : transformStamped
• transform : transform

Signals

• messageReceived(transformStamped msg)

Detailed Description

This message is mostly used by the tf2 package. See its documentation for more information.

The child_frame_id is necessary in addition to the frame_id in the Header to communicate the full reference for the transform in a self contained message.

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

See also TransformStampedPublisher and transformStamped.

Property Documentation

childFrameId : string

The childFrameId field of the last received message. Updated whenever a new message arrives. childFrameIdChanged 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 : transformStamped

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

transform : transform

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

Signal Documentation

messageReceived(transformStamped msg)

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