Jeffrey Kane Johnson's profile - activity

I am following the instructions here:

https://autowarefoundation.gitlab.io/...

And I run the simulator binary I get the window with the 'Open Browser' button, but when I click the button, nothing happens. It seems very similar to this problem:

https://github.com/lgsvl/simulator/is...

But I'm not sure how to apply that resolution to a docker container. Can anyone help me figure out what's going on?

I'm looking at the realtime joint controller tutorial, and it's talking about "commanded effort" for controlling the joint. What exactly is "effort"? It's not defined anywhere that I see. It looks just like some kind of position displacement.

@Schloern93 What question is this a duplicate of? I am having a similar issue.

@hidmic Thanks, I'll take a look at Rolling and possibly file a bug report.

Calling std::terminate in a composed node? If I call std::terminate in one component of a composed node, the component d

Calling std::terminate in a composed node? If I call std::terminate in one component of a composed node, the component d

Calling std::terminate in a composed node? If I call std::terminate in one component of a composed node, the component d

@destogl Definitely. If I find anything, I'll post it here.

[ros2] how to pass commandline arguments to launch files I want to do something like: $ ros2 launch foo bar.launch.py a

Thanks, but this doesn't answer the question. I'm not setting a node parameter, I just want to pass in a value to the la

[ros2] how to pass commandline arguments to launch files I want to do something like: $ ros2 launch foo bar.launch.py a

[ros2] how to pass commandline arguments to launch files I want to do something like: $ ros2 launch foo bar.launch.py p

I have two launch files A.launch.py and B.launch.py. The B launch file has a set of parameters with default values. I want to include the B launch file in A so that launching A also launches B.

So far this works fine and I have no problems.

However, now I want to specify some parameter values in A that override the default values specified in B. How do I do this? It was pretty straightforward to do this in ROS 1 with the XML syntax, but I can't find any straightforward way to do in ROS 2 with the python launch file syntax.

My question is basically this one, but for ROS 2: #q62949.

I believe I've answered my own question. I got it to work by adding a launch_arguments argument to the IncludeLaunchDesc

[ros2] Including a launch file in a launch file with parameter overrides I have two launch files A.launch.py and B.launc

I'm a bit confused by ROS conventions. On this page:

http://www.ros.org/wiki/geometry/CoordinateFrameConventions

It says Euler angles are specified in yaw-pitch-roll (ZYX) format in ROS. However, the tf.transformations.quaternion_from_euler function seems to assume roll-pitch-yaw (XYZ) format, as on this page:

http://ros.org/wiki/tf/Overview/Transformations

Doesn't this violate the convention, or am I missing something?

I am on Ubuntu 20.04 using ROS 2 Foxy. I have installed colcon using:

sudo apt install python3-colcon-common-extensions

It works fine, but I get desktop notifications when, for example, a build fails. I find the notifications extremely annoying. How can I disable them for colcon? I can't find an option to do that anywhere, and I don't want to disable notifications entirely.

If I'm working in ADE and I use apt to install something that is not already included, how can I make sure that what I install sticks around after I stop ADE? At the moment, I am having to re-install everything every time I stop and restart ADE.

I'm sure it's something simple and I tried looking through documentation for Docker, but I don't know enough about how it works to really know what to look for.

In the documentation it says:

Non-node loggers can also be created that use a specific name.

Is there an example or tutorial somewhere that shows how to do this?

Perfect, thanks!