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QuaternionSubscriber QML Type

Subscribes to geometry_msgs::msg::Quaternion messages — This represents an orientation in free space in quaternion form. More...

Import Statement: import QtRos2.GeometryMsgs
Inherits:

SubscriberBase

Status: Experimental Extension

Properties

  • message : quaternion
  • w : double
  • x : double
  • y : double
  • z : double

Signals

Detailed Description

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

See also QuaternionPublisher and quaternion.

Property Documentation

message : quaternion

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

w : double

The w field of the last received message. Updated whenever a new message arrives. wChanged 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.

z : double

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

Signal Documentation

messageReceived(quaternion msg)

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

Note: The corresponding handler is onMessageReceived.

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