No map received in RViz despite successful data publishing to /scan topic
I'm using an RPLidar A1 sensor to generate a map of the environment using the gmapping node in ROS. I've configured the RPLidar node to publish data to the /scan topic, and I'm using the slam_gmapping node to generate a map from this data.
However, when I visualize the map in RViz using the map topic, I'm seeing the message "no map received" in the status bar. Here are some additional details about my setup:
I'm using a static transform broadcaster to publish the transform between the base_link and lidar_frame frames, and I've added a new static transform broadcaster to publish the transform between the base_link and map frames. I've checked the output of the slam_gmapping node and there don't seem to be any errors or warnings being output. I've tried increasing the map_update_interval parameter in the rosparam section of the slam_gmapping node to give the mapping algorithm more time to build the map, but that didn't seem to help. When running the view_frames command, I can see the following frames being broadcasted: base_link, lidar_frame, and map. The base_link frame appears to be the parent frame of the lidar_frame and map frames. I'm wondering if there are any other potential causes for the "no map received" message in RViz, and if there are any other troubleshooting steps I could try to get the map to display. Any help would be greatly appreciated. Thank you!
