ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange
Ask Your Question

clalancette's profile - activity

2023-03-08 12:07:31 -0500 answered a question ROS2 Conventions on installing headers

To me, the doubling in the path has to be a mistake, but then, so many packages do it. No, it's not a mistake, it i

2022-08-16 00:20:00 -0500 received badge  Nice Answer (source)
2022-06-15 07:30:23 -0500 answered a question [ROS2] [launch_pytest] node outputting to stderr instead of stdout

In short, it is by design that all output from RCLCPP_{DEBUG,INFO,WARN,ERROR,FATAL} macros (and their equivalent logger.

2022-06-15 07:30:23 -0500 received badge  Rapid Responder (source)
2022-04-18 08:10:05 -0500 answered a question ROS1 -> ROS2: Migration standard

It really depends on what you are trying to do, and what your sensor suite looks like. If your sensors are truly indepe

2021-12-22 01:31:17 -0500 received badge  Enlightened (source)
2021-12-22 01:31:17 -0500 received badge  Good Answer (source)
2021-09-19 07:24:18 -0500 received badge  Nice Answer (source)
2021-08-16 12:46:29 -0500 commented question ROS2 joy_node debugging?

So in Foxy and later, the joystick node doesn't get its events through /dev/input/js0, so any tests that deal with that

2021-02-24 07:51:13 -0500 commented question bloom-release fais: Aborting pull request: HTTP Error 401: Unauthorized

For MFA, you have to setup bloom with an oauth token: http://wiki.ros.org/bloom/Tutorials/GithubManualAuthorization . I

2021-02-23 14:43:02 -0500 commented question bloom-release fais: Aborting pull request: HTTP Error 401: Unauthorized

Do you have 2-factor authentication enabled on your account?

2021-01-04 13:57:53 -0500 commented answer ROS2 import Python modules

The general idea with listing your dependencies in the package.xml is so that your users can just use rosdep to install

2021-01-04 13:55:35 -0500 commented answer rosdep init fails with a syntax error

Things should work out if you are on 18.04; as I mentioned, it is something we test (although only minimally). What I w

2020-12-18 13:54:51 -0500 commented question How to get process ID of ROS 2 nodes ?

There isn't really a way to look for PIDs in the ROS 2 API. The main reason for this is that in ROS 2, a PID isn't a go

2020-12-18 13:47:41 -0500 commented question ROS2 in windows,running python demo is unresponsive but no error

So the listener will just sit around forever, waiting for data to come in via the /chatter topic. In order to see anyth

2020-12-18 13:47:41 -0500 received badge  Commentator
2020-12-18 13:46:14 -0500 commented question Can't send a captured image from raspi4 to other machine.

There are currently some problems when sending very large pieces of information over the network, particularly over WiFi

2020-12-18 13:27:46 -0500 commented question Turtlebot3 packages are ignored by colcon build

I just tried this on Ubuntu 20.04 and Foxy, and everything seems to compile there. Trying this on Ubuntu 18.04 with Das

2020-12-18 13:18:28 -0500 answered a question ROS2 import Python modules

It's important to add all of your dependencies to the package.xml. That does a few different things: For users who ar

2020-12-18 13:07:10 -0500 commented question error source /opt/ros/foxy/setup.bash

register-python-argcomplete is the Python script that Foxy calls to register its various components with argcomplete. I

2020-12-18 12:51:47 -0500 answered a question ROS2 (Foxy): "launch" is not working on windows 10.

launch should work on Windows; it is a cross-platform utility written in Python. This seems like an installation error.

2020-12-18 12:45:28 -0500 answered a question rosdep init fails with a syntax error

Yeah, Ubuntu 16.04 is going to be a problem. The python version there is going to be way out of date. You may be able

2020-12-18 12:45:28 -0500 received badge  Rapid Responder (source)
2020-12-14 09:31:28 -0500 commented question Is it possible to parse json file based on ROS2 msg file

Here are some things I would do differently: You shouldn't be specifying topic names dynamically like this. ROS 2 has

2020-12-11 15:38:38 -0500 commented answer Default callback group?

Ah, no worries. I had to go grubbing through the source to find it, but it is created here: https://github.com/ros2/rcl

2020-12-11 15:30:01 -0500 commented question message_filters doesn't call the callback function

Unfortunately, I don't think there is enough information to answer here. A few questions: What version of ROS 2 are y

2020-12-11 15:22:27 -0500 answered a question Default callback group?

The default callback group is just an internal, MutuallyExclusive callback group. That means that one, and only one of

2020-12-11 15:22:27 -0500 received badge  Rapid Responder (source)
2020-12-11 15:14:42 -0500 commented question Is it possible to parse json file based on ROS2 msg file

I'm not entirely sure what you are trying to do, but at least for the topic name, you should be able to use the remappin

2020-12-08 02:28:50 -0500 received badge  Great Answer (source)
2019-10-27 11:33:46 -0500 answered a question ros2 topic /initialpose doesn't echo

There are two things to know about this. First, it is possible to have two different publishers to the same topic name

2019-10-27 11:33:46 -0500 received badge  Rapid Responder (source)
2019-01-25 13:21:39 -0500 commented question Today in 2019, will RViz and Gazebo work with X forwarding over SSH

FWIW, I use X-forwarding with RViz and Gazebo all of the time, though both the client and server are Linux boxes. So it

2018-10-05 09:21:54 -0500 received badge  Enthusiast
2018-10-03 13:06:54 -0500 answered a question Get ROS2 message fields from Python messages?

Looking at the latest ROS2 master code, it looks like you can currently get the names of the message fields from __slots

2018-10-03 06:57:09 -0500 received badge  Good Answer (source)
2018-10-02 11:56:23 -0500 received badge  Nice Answer (source)
2018-10-02 09:19:23 -0500 answered a question Compilling ROS2 on Rasperry Pi

There are two different multi-build concepts in colcon. The first one is how many executors to use; that essentially li

2017-09-30 09:23:08 -0500 received badge  Nice Answer (source)
2017-09-29 12:11:51 -0500 answered a question Can i use the Turtlebot simulator for ROS Kinect ?

In general, packages are only available in a ROS distribution if the maintainers release it into that particular distro.

2017-09-26 15:48:36 -0500 received badge  Teacher (source)
2017-09-26 10:13:54 -0500 commented answer roscd: No such package/stack 'navigation' in version kinetic

I just did a clean install of ros-kinetic-desktop-full, and it looks like ros-kinetic-navigation does not get installed.

2017-09-25 16:58:03 -0500 answered a question roscd: No such package/stack 'navigation' in version kinetic

You'll need to install the package first. You should be able to run: sudo apt-get install ros-kinetic-navigation to i