RachelRen's profile - activity

I am tried to use ros2 bag record to save the information of camera topic, but how to use ros2 bag play to loop play the package.

ros2 bag issue I have successfully record the bag file of realsense camera(D435i) topic using: ros2 bag record /camera/

question about ros2 bag play I am tried to use ros2 bag record to save the information of camera topic, but how to use r

colcon test-run_test.py:return code -11 main function: int main(int argc, char * argv[]) { testing::InitGoogleTest(&a

colcon test-run_test.py:return code -11 when I use colcon test to run test, an error occurred: [ OK ] [ PASSED ] 1 test.

When I launch realsense_ros2_camera ,I use ros2 topic info /camera/color/image_raw to print information about the /camera/color/image_raw topic,the result is :

Topic: /camera/color/image_raw
Publisher count: 0
Subscriber count: 0

In subscriber,it can't auto call the callback function.I want to know if it is because there is no publisher lead to can't auto call the callback function.

To be honest,I don't understand that there is no publisher why does the topic exist.

Thanks very much.

Hi All,

I'm writing TEST for the company ROS2's project.I learned to launch service or topic via the .test file in ROS,but there is no .test file in ROS2 TEST.I don't know what kind of mechanism can launch service or topic in ROS2 TEST.

Additional information:I use

ament test --only-packages MY_PACKAGE_NAME

to run TEST. Thanks All

Hi Have you solved the problem? I met the same problem now. Thanks

@poonam1120 Have you tried adding .py to CMakeLists.txt using ament_add_pytest_test?

@poonam1120 Would you mind to introduce how you achieved the migrated .test file from ros1 into launch.py in ros2? Tha

@jacobperron Thank you for your reply. This problem is caused by call_for_each_rmw_implementation(targets), it calls

An error occurred while using macro to customize the timeout time of gtest in cmake Hi, I used the following way to cus

@marguedas I'm sorry to comment too late. I mean,when launching processes in background,the publisher don't publish dat

@marguedas I'm sorry to comment too late. I mean,when launching processes in background,the publisher don't publish data

@marguedas Thank you very much. I tried to launch processes in background in the ros2 test,but this way can't meet the

@marguedas Thank you very much. I tried to launch processes in background in the ros2 test,but this way can't meet the e

@marguedas Thanks for you explanation,I understand why the callback is not called. Thanks everyone.

I writed a subscriber for it.When I launched the subscriber,the subscriber count is 1,but the callback function not exec

How to understand the result of the "ros2 topic info /camera/color/image_raw" is 0 When I launch realsense_ros2_camera ,

Yes,I have. I pre-defined test_pass = false,This test can run,but its result is failed. What puzzles me is why the re

How to understand the difference rclcpp::spin() and rclcpp::executor::Executor::spin_once()? environment:ros2,ament,ubun

@arunavanag Hi,arunavanag, I have a question to consult.How to achieve launch service or topic in ROS2 TEST? I'm wr

How to achieve launch service or topic in ROS2 TEST ? Hi All, I'm writing TEST for the company ROS2's project.I learned