Topic list not listing subscribed topics - Githubissues

gazebosim / gz-transport

Transport library for component communication based on publication/subscription and service calls.

https://gazebosim.org

Apache License 2.0

29 stars 40 forks source link

Topic list not listing subscribed topics #263

Closed jennuine closed 1 year ago

jennuine commented 2 years ago

Environment

OS Version: Ubuntu 20.04
Source or binary build? Source both in Dome and Fortress branches

Description

Expected behavior: ign topic -l to list topics that are being subscribed to
Actual behavior: Does not list topic until it's published then disappears

Steps to reproduce

ign gazebo velocity_control.sdf (this also happens with diff_drive.sdf as well)
Add topic viewer in gui
ign topic -e -t /model/vehicle_blue/cmd_vel
ign topic -t "/model/vehicle_blue/cmd_vel" -m ignition.msgs.Twist -p "linear: {x: 0.5}, angular: {z: 0.05}"

Output

I came across this when I wanted to check the green vehicle's initial cmd_vel and wasn't able to.

Peek 2021-09-24 12-53

caguero commented 2 years ago

This is a known limitation. It hasn't been implemented yet.

chapulina commented 2 years ago

Closed #39 as a duplicate. Usually we'd close the newer issue, but I think that one may be a bit too old.

azeey commented 1 year ago

Fixed by https://github.com/gazebosim/gz-transport/pull/379