[ROS2] Is it possible to listen and subscribe to newly created topic in C++?
Not sure if it's possible programmatically.
ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange |
Not sure if it's possible programmatically.
Yes, you can dynamically create new subscriptions in c++ at run time.
Use the create_subscription
method on Node
Sure. You can get the list of topics and their types that have been discovered at any time from the API.
See http://docs.ros2.org/latest/api/rclcp... (search for “introspecting the ROS graph”)
Use the api linked above in the comment to get the list of topics and their types before you call create subscription. Or know through some other means what type you're expecting. The callback must match the type too so you're going to need to have an idea about the type beforehand anyway.
Asked: 2019-08-08 14:27:21 -0500
Seen: 1,089 times
Last updated: Aug 08 '19
Explanation to ROS2 python library
Ros2 connection between multiple machines
[rclcpp] How to unsubscribe from a topic
How to get MoveIt2 to output JointState message type?
Remapping diff drive controller to cmd_vel
file path not recognized as file ros2 launch
Msg type for publishing JointCommands?