excuse me , how can i change the frame_id of the publish_frame_id ?

[grisrobotics]

I have met some question when i changed the frame_id of the publish_frameid . As the launch file show , default: "world" = "world_1" , but i dont want to the the after the "world" ,how can i delete the "" when publish the frame_id .For example ,when i def the publish_frame_id = scan_head , it will become scan_head_1 , but just want it to publish scan_head , how can i change it?

[rostest]

Thanks for your feedback. Laserscan messages contain the scan data of one single layer only. To keep the correct framing of the scan data, the layer_id is appended to the configured <publish_frame_id>.

If you need to modify this behaviour, you have the following options:

• Republish a laserscan message with your own frame id. Keep in mind, that different layers should have different frame ids.
• Use a static_transform_publisher with x=0 y=0 z=0 yaw=0 pitch=0 roll=0. This does not change the frame_id, but defines e.g. a frame scan_head relative to frame scan_head_1.