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.
Snap can be installed from the command line on openSUSE Leap 15.x and Tumbleweed.
You need first add the snappy repository from the terminal. Choose the appropriate command depending on your installed openSUSE flavor.
Tumbleweed:
sudo zypper addrepo --refresh https://download.opensuse.org/repositories/system:/snappy/openSUSE_Tumbleweed snappy
Leap 15.x:
sudo zypper addrepo --refresh https://download.opensuse.org/repositories/system:/snappy/openSUSE_Leap_15.6 snappy
If needed, Swap out openSUSE_Leap_15. for, openSUSE_Leap_16.0 if you’re using a different version of openSUSE.
With the repository added, import its GPG key:
sudo zypper --gpg-auto-import-keys refresh
Finally, upgrade the package cache to include the new snappy repository:
sudo zypper dup --from snappy
Snap can now be installed with the following:
sudo zypper install snapd
You then need to either reboot, logout/login or source /etc/profile to have /snap/bin added to PATH.
Additionally, enable and start both the snapd and the snapd.apparmor services with the following commands:
sudo systemctl enable --now snapd
sudo systemctl enable --now snapd.apparmor
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.