Questions concerning your Arlobot TwoFlowers Video

[thomasco...@gmail.com]

Hi Chris,

I have watched your Arlobot TwoFlower video a number of times, but still have some questions concerning the Web Interface and Rviz displays on your PC:

1. You appear to have the Web Interface open at 192.168.1.53:8080 on the left side of your PC display.
2. How did you display the rviz panel on the right side of the display next to the Web Interface before launching an additional rviz panel using RealVNC?
3. I can understand using RealVNC to view the Arlobot Computer OS desktop where you launched the rviz panel using a desktop terminal.

Maybe it would be a good idea to generate a short guide of how to make a map remotely from a PC?

I have a NVIDIA Nano 4GB, running JP 4.6 (Ubuntu 18.04), on which I have installed your 'Workstation via x11docker'. I can use 'docker-view-navigation.sh' using a desktop terminal on the Nano along with using the Firefox browser to view the Arlobot Web Interface and start ROS.

Regards,

TCIII

[thomasco...@gmail.com]

Hi Chris,

Bump?

TCIII

[thomasco...@gmail.com]

Hi Chris,

This morning I started the Rpi 4B on the Arlobot without a monitor/keyboard/mouse after I had powered up my Nano 4GB running your x11docker workstation.

I then launched the Chrome browser on the Nano Ubuntu Desktop and browsed to the Rpi ip:8080 which brought up the Arlobot Web Interface.

I then started ROS and once ROS had completed starting I opened the Navigation Panel and started a map.

Finally I opened a terminal window on the Rpi Ubuntu desktop and ran 'docker-view-navigation.sh' which brought up rviz and the RPLidar scan.

It took me a bit to figure out how to adjust the rviz window so that the RPLidar scan was centered in the display, but all is good now.

The rviz RPLidar display looks just like the one in your TwoFlower video.

Now to make a map and let Arlobot drive the map.

By the way, your docker version of 'view-navigation.sh' is still trying to load the Slam Toolbox plugin when launching rviz.

Regards,

TCIII 

[Christen Lofland]

Yes, I should make another video. I think I would use Rviz on Windows this time though.

You will probably have it figured out before I make such a video, but I'll let you know if/when I do.

I haven't messed with that docker version in a while. I hope it still works. I had to use that back when I was on an Ubuntu version on my laptop that was too new for ROS to work on. I use Windows on my laptop these days though.

[thomasco...@gmail.com]

Hi Chris,

Thanks for the response, much appreciated.

The docker version works fine on my Nano 4GB running JP 4.6 (Ubuntu 18.04) the only problem being that the docker installation needs an update like you did with the Arlobot/ROS Noetic software.

Docker-view-navigation.sh is still trying to load the Slam Toolbox Plugin. Where in the Docker package can I disable the launch of the Slam Toolbox Plugin?

Regards,

TCIII

[Christen Lofland]

That's strange, because I cannot find the text "SlamToolboxPlugin" anywhere in the codebase now.

I do think some files get copied to places during the setup/build, so you might have to run the "workstation-via-x11docker.sh" again to fix things? If indeed you ran that to begin with.

In theory the only lines from the script that you have to run again are:
cd ~/catkin_ws/src/ArloBot/docker-rviz/
sudo docker build -t ros:gui . # Run again if you change any settings

[thomasco...@gmail.com]

Hi Chris,

Thanks for the insights, much appreciated.

I will give it a shot.

Regards,

TCIII