ParameterEventSubscriber QML Type
Subscribes to rcl_interfaces::msg::ParameterEvent messages — This message contains a parameter event. More...
| Import Statement: | import QtRos2.RclInterfaces |
| Inherits: | |
| Status: | Experimental Extension |
Properties
- changedParameters : list<parameter>
- deletedParameters : list<parameter>
- message : parameterEvent
- newParameters : list<parameter>
- stamp : time
Signals
- messageReceived(parameterEvent msg)
Detailed Description
Because the parameter event was an atomic update, a specific parameter name can only be in one of the three sets.
ParameterEventSubscriber receives parameterEvent values from a ROS 2 topic. Set the topic and node properties, then connect to the messageReceived() signal.
See also ParameterEventPublisher and parameterEvent.
Property Documentation
changedParameters : list<parameter>
The changedParameters field of the last received message. Updated whenever a new message arrives. changedParametersChanged is emitted on every update.
deletedParameters : list<parameter>
The deletedParameters field of the last received message. Updated whenever a new message arrives. deletedParametersChanged is emitted on every update.
message : parameterEvent
The last message received on topic. Updated whenever a new message arrives.
newParameters : list<parameter>
The newParameters field of the last received message. Updated whenever a new message arrives. newParametersChanged is emitted on every update.
stamp : time
The stamp field of the last received message. Updated whenever a new message arrives. stampChanged is emitted on every update.
Signal Documentation
messageReceived(parameterEvent msg)
Emitted when a new parameterEvent arrives on topic. msg contains the received value.
Note: The corresponding handler is onMessageReceived.
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