Cannot view scan in the gazebo window Unit 2&3

[mikebz]

I cannot see the scan display and means to select it in the Gazebo window. I have used teleop keyborad to spin the robot in front of sphere and I can see active data in /scan using ros2 topic echo /scan
I also added laser scan to rviz and could see the red dots there.

[girishkumar.kannan]

Hi @mikebz ,

Welcome to this Community!

You need to set the QoS profile of /scan in Rviz2 to see the scans properly.
The usual QoS setting for LaserScan messages from /scan topic is:
History: KEEP_LAST, Depth: 5, Reliability: BEST_EFFORT and Durability: VOLATILE.
You can set these under Laser Scan display in the Rviz2 left panel.
As an additional step, set the Marker size to 0.25 so that the “red dots” are clearly visible.

This should fix your problem. Let me know if you still have issues.

Regards,
Girish

[mikebz]

Thanks for welcome. Here is a snapshot of the RViz2 with scan set up as suggested.

[girishkumar.kannan]

Hi @mikebz ,

Glad to know that your problem is fixed!

Regards,
Girish