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rviz2 cannot show LaserScan messages in ROS2 dashing with gazebo

asked 2020-09-22 02:45:08 -0500

Phymin gravatar image

updated 2020-09-22 03:43:38 -0500


I am really frustrated that I have tried for almost one day before I put the question here. I really cannot figure out where is the problem.

I follow the turtlebot3 simulation to create my own gazebo robot, and It can be shown normally in gazebo and I can also tele-operate it. Please see the following picture from gazebo gazebo image.

But when I open rviz2 and add LaserScan topic, the status shows OK, but there is no laser scan data shown. And I checked the topic list and topic echo it seems all OK. please see the following pictures. ros2 topic list

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Hope someone familiar with could help me out, thanks for advance.

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answered 2020-09-22 03:48:26 -0500

Phymin gravatar image

I have finally figured out where the problem is. Just check Unreliable option and the rviz2 can show laser scan points. Please see the picture below:

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But I don't know exactly why, hope someone can give further explanation about this

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Asked: 2020-09-22 02:45:08 -0500

Seen: 180 times

Last updated: Sep 22 '20