Questions tagged [publisher]

Question 1

So I am trying to make four turtles starting at different locations of a square make 5 rounds of rotation around that square. (The square is an imaginary one that the Turtles will draw when making a ...

Question 2

Tuesday Tangle I was wondering what can be the optimum way to solve the following. (Not even sure if it affects the system performance. I am not worried about the delays and other factors, just ...

Question 3

I'm using ROS2 and the following command to publish a static transform: ros2 run tf2_ros static_transform_publisher 5 0 0 0.5 0.5 0.5 -0.5 earth map As I ...

Question 4

The official Python tutorial only uses a String type for the message examples. I want something more complex, like LaserScan. I cannot tell if this is possible for a pure Python project. I just want ...

Question 5

I have just followed the steps in https://docs.ros.org/en/jazzy/Tutorials/Beginner-Client-Libraries/Writing-A-Simple-Py-Publisher-And-Subscriber.html, and I would like to change the .py script so that ...

Question 6

I would like to modify the message posted by the publisher directly from the subscriber side. So I tried the following method: pass reference to modify directly on subscriber side, but it doesn't ...

Question 7

I am currently writing a package that will calculate the linear acceleration and angular velocity (geometry_msg/Twist) for driving from A to B. I am now facing the ...

Question 8

My robot body communicates with the hardware by configuring the hardware interface： ...

Question 9

I tried connecting the Realsense D455 camera, to get point cloud information from the camera. Works fine on a PC. But when connected to Jetson Orin Nano, its shows up with the SDK and Realsense viewer ...

Question 10

I'm encountering a problem in my ROS2 (Robot Operating System 2) communication setup where I've noticed a significant decrease in the frequency of data updates (measured in Hz) and increased lag in ...

Question 11

I always assumed ROS2 nodes used sockets to communicate but it looks like they might also use shared memory or pipes. Regardless I'm curious how ROS2 nodes find each other? Lets suppose each node ...

Question 12

What are the plans for implementing rclcpp subscriber status callbacks (connect/disconnect) in ROS2? I found this ROS1 feature quite handy. Note that this question has been asked before but since that ...

Question 13

I try to use x and y in timer_callback function but I get ‘x’ was not declared in this scope I don't know how can I do this ...

Question 14

I use Ubuntu 20.04 and Ros2 Galactic when I run the code I'm able to get subscribe information and pub this information and also I can see publisher information on topic echo continuously but when I ...

Question 15

I want to visualize an OrientedBoundingBox from Open3D on RVIZ, I have seen the : RvizVisualTools::publishWireframeRectangle RVIZ Line Segments ...

Stack Exchange Network

Questions tagged [publisher]

I need some help with Turtlebot

Optimum way to do multiple (similar) msg subscrition in multiple nodes?

Why does my tf2 static_transform_publisher (earth -> map) show a different axis mapping than expected?

ROS2.Jazzy Python Custom Messages

ROS2 Jazzy, How to change publisher nodes from a package

Do subscribers in ROS2 have to subscribe to the same data types as publishers?

Get data from Hardware Component to other package outside of ros2_control

What is the way to post my gripper and dexter hand joint position data to the /joint_states topic without going through the hardware interface

Intel RealSense D455 is not working with ROS noetic in Jetson Orin Nano

Decreased Hz Rate and Lag in Image Transfer with Multiple Subscriptions in ROS2 Communication

How do ROS2 nodes find each other on the same computer?

When will subscriber status callbacks be available in ROS2?

Calling ROS2 subscriber callback function from another function

C++ Publisher and Subscriber in ROS2

Oriented Bounding Box in RVIZ

Hot Network Questions