Pose2DSubscriber QML Type

Subscribes to geometry_msgs::msg::Pose2D messages — Please use the full 3D pose. More...

This type is deprecated since QtRos2.GeometryMsgs Foxy. We strongly advise against using it in new code.

• List of all members, including inherited members

Properties

• message : pose2D
• theta : double
• x : double
• y : double

Signals

• messageReceived(pose2D msg)

Detailed Description

In general our recommendation is to use a full 3D representation of everything and for 2D specific applications make the appropriate projections into the plane for their calculations but optimally will preserve the 3D information during processing.

If we have parallel copies of 2D datatypes every UI and other pipeline will end up needing to have dual interfaces to plot everything. And you will end up with not being able to use 3D tools for 2D use cases even if they're completely valid, as you'd have to reimplement it with different inputs and outputs. It's not particularly hard to plot the 2D pose or compute the yaw error for the Pose message and there are already tools and libraries that can do this for you.# This expresses a position and orientation on a 2D manifold.

Pose2DSubscriber receives pose2D values from a ROS 2 topic. Set the topic and node properties, then connect to the messageReceived() signal.

See also Pose2DPublisher and pose2D.

Property Documentation

message : pose2D

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

theta : double

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

x : double

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

y : double

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

Signal Documentation

messageReceived(pose2D msg)

Emitted when a new pose2D arrives on topic. msg contains the received value.