mch's profile - activity

rosnode kill /my_bag This assures that rosbag stops gracefully. That does not seem to stop gracefully though. Ros

How to synchronize data between 2 different ROS nodes? Note: Q is not about time/timestamps synchronization. It's only a

How to synchronize data between 2 different ROS nodes? Note: Q has nothing to do with time/timestamps synchronization. I

Image worth a thousand words. At arbitrary time all the messages in all topics are stop sending for ~2 sec. without apparent reason.

CPU loading at the moment was not highest - about 70% on few CPUs and 0% on others. After the gap, sending continued without delays as before. One observation: after the gap, header.seq for all messages continued normally without lose. E.g. for one message the last header.seq before gap was 1031 and the next one after gap was 1032 - nothing lost. So I don't think it's a rosbag problem. Most likely it's a ROS problem.

I understand it's barely possible to say exactly what happened. I'm rather looking for advice on how to investigate it and what direction to dig into here: what are possible reasons, what else to check?

Tech details: ROS1 Melodic, Ubuntu 18, Hardware: 8x3hz CPU + GPU + 18GB RAM

Theoretically you can estimate your pose using lidar data. That is a set of techniques called visual odometry. Most usef

Theoretically you can estimate your pose using lidar data (https://ri.cmu.edu/pub_files/2014/7/Ji_LidarMapping_RSS2014_v

No. It won't. https://answers.ros.org/question/50112/unexpected-delay-in-rospy-subscriber/ https://github.com/ros/ros_co

I've found workaround which satisfied my need. #ifdef UNIT_TESTING_ON public: #else private: #endif Then to enable

I've found workaround which satisfied my need. ifdef UNIT_TESTING_ON public: else private: endif Then to enable te

Same problem. Actual error: Compilation fails with msg error: ‘void TargetClass::privateMap()’ is private within this c

ROS1 stop sending all messages for seconds Image worth a thousand words. At arbitrary time all the messages in all to

I'd start with ROS open cv: https://docs.opencv.org/3.2.0/d5/d69/tutorial_py_non_local_means.html

Can you post your CMakeList.txt file?

This message means you don't have TF (http://wiki.ros.org/tf) between those cameras published. TF between 2 cameras most

This message means you don't have TF (http://wiki.ros.org/tf) between those to cameras published. TF between 2 cameras m

Connect your Kvaser adapter to usb Make sure it's visible: ifconig -a should show can0 (or other canX interface) Up you

Theoretically you can estimate your pose using lidar data. That is a set of techniques called visual odometry. But it's

I know there are specific test commands catkin_make run_tests to run all tests and catkin_make run_tests_<projectname>_gtest_<testname> to run specific test declared by catkin_add_gtest(<testname> …)

One test file can have multiple tests though. Example:

TEST(testsuit1, test1) {
..
}

TEST(testsuit1, test2) {
..
}

TEST(testsuit2, test3) {
..
}

int main(int argc, char **argv) {
    testing::InitGoogleTest(&argc, argv);
    return RUN_ALL_TESTS();
}

Is that possible to run only testsuit1 or only test3 from my example?

Catkin: run specific unit test I know there are specific test commands catkin_make run_tests to run all tests and catkin