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[ROS Q&A] 066 – buoyancy neutral object goes up with hydrodynamics plugin part2

by Miguel Angel | Nov 24, 2017 | ROS Q&A

What will you learn in this post Understand how to use the buoyancy plugin in gazebo List of resources used in this post The question on Gazebo Answers A live version of this post on YouTube: https://youtu.be/evweU2MjNjc The question is: buoyancy neutral object goes...

[ROS Q&A] 065 – YAML dump using C++

by Ruben Alves | Nov 23, 2017 | ROS Q&A

https://youtu.be/w5cVKlhy37w Here we show where the ROS Params are dumped when we use the "system()" function in C++ , as asked on this question: https://answers.ros.org/question/267467/yaml-dump-using-c/ Q: How do i dump my param values into a yaml file using C++? I...

[ROS Q&A] Catkin workspaces – Problem copying files from one to another

by Marco Arruda | Nov 22, 2017 | ROS Q&A

https://youtu.be/Lg_oM4vFIEs Q: I copied a workspace and now catkin_make doesn't work A: I'm using ROS Indigo distribution, I have tried to do the same in my computer and I got the following error: Then, I have removed the folders build and devel from catkin_02 and...

[ROS Q&A] Setting the node log level in run time (C++)

by Ricardo Tellez | Nov 21, 2017 | ROS Q&A

https://youtu.be/jGA3RrNP7nk In this video we show how to use C++ to dynamically change the logger level of a node. See the original question: https://answers.ros.org/question/276242/set-log-level-for-each-node-in-ros-cpp/ Q: Set log level for each node in ROS CPP A:...

[ROS Q&A] Printing message in launch file

by Alberto Ezquerro | Nov 20, 2017 | ROS Q&A

Q: I am wondering if there is any way to print message from launch file. For example, I am calling a node from launch file and I do not want the user to terminate this process. A: The best way is to create a simple Python...