Have you ever SSH'ed into a robot to debug whether sensors are outputting
what they should, e.g. rostopic echo /camera/image_raw?
If so, rosshow is for you.
This displays various sensor messages in a useful fashion using Unicode Braille art
in the terminal so you don't need to fire up port forwards, Rviz,
or any other shenanigans just to see if something is working.
It currently only supports types from std_msgs and sensor_msgs but support for more types is coming.
Contributions welcome!
After installation, you can immediately run it with:
rosshow <topicname>
Most visualizations use Unicode Braille characters to render visualizations. If your terminal supports only ASCII, you can use the -a option for a purely ASCII-art render:
rosshow -a <topicname>
You can also force 1-bit, 4-bit, or 24-bit color modes if your terminal type is not detected correctly. You may need these when using rosshow inside of a screen.
rosshow -c1 <topicname> rosshow -c4 <topicname> rosshow -c24 <topicname>
Also be sure to check out my web visualization tool, rosboard at https://github.com/dheera/rosboard.
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Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
If you’re running Ubuntu 16.04 LTS (Xenial Xerus) or later, including Ubuntu 18.04 LTS (Bionic Beaver) and Ubuntu 20.04 LTS (Focal Fossa), you don’t need to do anything. Snap is already installed and ready to go.
For versions of Ubuntu between 14.04 LTS (Trusty Tahr) and 15.10 (Wily Werewolf), as well as Ubuntu flavours that don’t include snap by default, snap can be installed from the Ubuntu Software Centre by searching for snapd.
Alternatively, snapd can be installed from the command line:
sudo apt update
sudo apt install snapd
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.
To install rosshow, simply use the following command:
sudo snap install rosshow --edge
Browse and find snaps from the convenience of your desktop using the snap store snap.
Interested to find out more about snaps? Want to publish your own application? Visit snapcraft.io now.