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2023-04-05 05:24:33 -0500 received badge  Great Question (source)
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2022-03-10 10:15:17 -0500 answered a question How do ros2 components work?

Have you checked the documentation and tutorials? https://docs.ros.org/en/rolling/Concepts/About-Composition.html http

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2021-05-27 06:06:01 -0500 commented question RQT doesn't work with ROS2 and asks for a roscore

Just to be sure: after editing .bashrc, you did open a new shell, right? .bashrc is sources at startup of bash, the easi

2021-05-27 05:24:44 -0500 commented question RQT doesn't work with ROS2 and asks for a roscore

Did you perhaps add sourcing Noetic to your .bashrc? How did you install ROS1? There are also ROS1 packages in the regu

2021-05-26 15:45:19 -0500 marked best answer ROS2 launch FindPackageShare vs get_package_share_directory

I've noticed 2 possible ways to get the share directory of a package from within a launch.py file:

from ament_index_python.packages import get_package_share_directory

get_package_share_directory("package_a")

versus

from launch_ros.substitutions import FindPackageShare

FindPackageShare("package_a")

The former returns a string directly, the latter will be evaluated to a string when passed into a LaunchDescription somewhere.

Which one is recommended?

2021-05-21 08:54:36 -0500 received badge  Rapid Responder (source)
2021-05-21 08:54:36 -0500 answered a question navigation2 - Set two scan topics to AMCL

With the current state of AMCL this is impossible. You would need to build something that merges the 2 scans before prov

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2021-05-21 08:50:10 -0500 answered a question Annoying build warnings: how to suppress?

Why are you using version PCL version 1.8? Starting from 1.9 this map and deprecation warning have been removed. Based

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2021-01-08 05:36:43 -0500 commented question [ROS2 Foxy] Implement FastRTPS discovery server. Don't found topic avaliable

I have reported this as an issue on the rmw_fastrtps github project: https://github.com/ros2/rmw_fastrtps/issues/499.

2021-01-07 14:16:56 -0500 commented question [ROS2 Foxy] Implement FastRTPS discovery server. Don't found topic avaliable

I followed the following tutorial: https://index.ros.org/doc/ros2/Tutorials/Discovery-Server/Discovery-Server/ and I'm s

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2020-09-23 17:08:00 -0500 asked a question What does Fast-DDS maxInitialPeersRange restrict?

What does Fast-DDS maxInitialPeersRange restrict? This is a follow up question on https://answers.ros.org/question/32497

2020-09-23 03:54:17 -0500 commented question Bad performance of ROS2 via Wifi

I have this same problem and just tried Cyclone DDS, but it shows the same results. What bothers me most is that the loc

2020-09-22 14:20:41 -0500 commented question Can Gazebo do 2D 'flatland' only simulation

Thanks for pointing out flatland! I hadn't heard about it before.

2020-09-22 14:16:25 -0500 marked best answer What is the intention of using spdlog under the hood?

So now (since eloquent?) the nice spdlog library is used under the hood for logging. I was wondering if there is any plan on further integration?

More specifically, I would look forward to having an API similar to spdlog while using rclcpp.

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2020-09-21 07:00:53 -0500 commented answer rviz2 does not show the images published on the topic

Can you mark this as the correct answer?

2020-09-21 06:59:15 -0500 commented answer Why ros2 run executables are installed in "lib/{PROJECT_NAME}"

Thanks for this great summary, I've wondered about this since transitioning to ros2 after starting with ros1 from kineti

2020-09-21 06:53:00 -0500 answered a question Purpose of visibility_control files in ros packages

There's a link in those header files that refers to the GCC wiki: https://gcc.gnu.org/wiki/Visibility As far as I know

2020-09-21 05:36:00 -0500 commented question What is the intention of using spdlog under the hood?

Something shorter like this: RCLCPP_INFO(get_logger(), "Hello {}! Float formatting: {:.2f}", "world", 42.123456)); Th

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2020-09-16 15:35:34 -0500 commented question What is the intention of using spdlog under the hood?

While thinking about this question, I realized that spdlog comes with fmtlib, which seems to do the heavy lifting w.r.t.

2020-09-16 15:35:21 -0500 commented question What is the intention of using spdlog under the hood?

While thinking about this question, I realized that spdlog comes with fmtlib, which seems to do the heavy lifting w.r.t.

2020-09-16 15:34:56 -0500 commented question What is the intention of using spdlog under the hood?

While thinking about this question, I realized that spdlog comes with fmtlib, which seems to do the heavy lifting w.r.t.

2020-09-16 15:34:48 -0500 commented question What is the intention of using spdlog under the hood?

While thinking about this question, I realized that spdlog comes with fmtlib, which seems to do the heavy lifting w.r.t.

2020-09-16 15:34:22 -0500 commented question What is the intention of using spdlog under the hood?

While thinking about this question, I realized that spdlog comes with fmtlib, which seems to do the heavy lifting w.r.t.

2020-09-16 15:34:02 -0500 commented question What is the intention of using spdlog under the hood?

While thinking about this question, I realized that spdlog comes with fmtlib, which seems to do the heavy lifting w.r.t.

2020-09-16 15:33:35 -0500 commented question What is the intention of using spdlog under the hood?

While thinking about this question, I realized that spdlog comes with fmtlib, which seems to do the heavy lifting w.r.t.

2020-09-16 15:31:55 -0500 asked a question What is the intention of using spdlog under the hood?

What is the intention of using spdlog under the hood? So now (since eloquent?) the nice spdlog library is used under the

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2020-08-17 09:58:41 -0500 edited question ros2 service server callback interface

ros2 service server callback interface Why do service serverss in rclcpp have a callback interface in which the request

2020-08-17 09:58:24 -0500 edited question ros2 service server callback interface

ros2 service callback interface Why do services in rclcpp have a callback interface in which the request is not const?

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