when I run turtlebot3_sim_rgbd_scan_demo，some question about octree map.

[ccblog-cmd]

Hello. When I run turtlebot3_sim_rgbd_scan_demo, it runs normally. But when I check the topic related to the octree map, I find that the data is empty. How can I set it?

[matlabbe]

you would need to change this to true:

rtabmap_ros/rtabmap_demos/launch/turtlebot3/turtlebot3_rgbd_scan.launch.py

Line 41 in 42b0b49

'Grid/3D':'false', # Use 2D occupancy