NodeSubscriber QML Type
Subscribes to rosgraph_msgs::msg::Node messages — Represents the observable runtime state of a ROS Node Therefore, does not perfectly align with the abstract specification which created it. More...
| Import Statement: | import QtRos2.RosgraphMsgs |
| Inherits: | |
| Status: | Experimental Extension |
Properties
- actionClients : list<action>
- actionServers : list<action>
- message : node
- name : string
- parameterValues : list<parameterValue>
- parameters : list<parameterDescriptor>
- publishers : list<topic>
- serviceClients : list<service>
- serviceServers : list<service>
- subscriptions : list<topic>
Signals
- messageReceived(node msg)
Detailed Description
NodeSubscriber receives node values from a ROS 2 topic. Set the topic and node properties, then connect to the messageReceived() signal.
See also NodePublisher and node.
Property Documentation
actionClients : list<action>
The actionClients field of the last received message. Updated whenever a new message arrives. actionClientsChanged is emitted on every update.
actionServers : list<action>
The actionServers field of the last received message. Updated whenever a new message arrives. actionServersChanged is emitted on every update.
message : node
The last message received on topic. Updated whenever a new message arrives.
name : string
The name field of the last received message. Updated whenever a new message arrives. nameChanged is emitted on every update.
parameterValues : list<parameterValue>
The parameterValues field of the last received message. Updated whenever a new message arrives. parameterValuesChanged is emitted on every update.
parameters : list<parameterDescriptor>
The parameters field of the last received message. Updated whenever a new message arrives. parametersChanged is emitted on every update.
publishers : list<topic>
The publishers field of the last received message. Updated whenever a new message arrives. publishersChanged is emitted on every update.
serviceClients : list<service>
The serviceClients field of the last received message. Updated whenever a new message arrives. serviceClientsChanged is emitted on every update.
serviceServers : list<service>
The serviceServers field of the last received message. Updated whenever a new message arrives. serviceServersChanged is emitted on every update.
subscriptions : list<topic>
The subscriptions field of the last received message. Updated whenever a new message arrives. subscriptionsChanged is emitted on every update.
Signal Documentation
messageReceived(node msg)
Emitted when a new node arrives on topic. msg contains the received value.
Note: The corresponding handler is onMessageReceived.
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