Blog

News, Updates, & Resources

[ROS Tutorials] 068 – buoyancy neutral object goes up with hydrodynamics plugin #Part 3

by Miguel Angel | Nov 28, 2017 | ROS Tutorials

This is the this part of the buoyancy question answer. In this part you learn how to add buoyancy to a geometric based comples model: http://answers.gazebosim.org/question/15600/buoyancy-neutral-object-goes-up-with-hydrodynamics-plugin/#17704 Q:buoyancy neutral object...

[ROS Q&A] 067 – Subscribe custom message attributes

by Marco Arruda | Nov 27, 2017 | ROS Q&A

Q: Hello! I want to subscribe data from .msg file. However the file has four other msgs inside. The format of the .msg file is: Could you tell me how to read, for example, x,y,z coordinates inside geometry_msgs/Vector3? A: I've created a custom msg (msg/mycustom.msg)...

[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...