No output from /map topic

[AkshayLaddha943]

Hi all,
I am trying to replicate this package with a bag file for velodyne vlp16. The bag file I am playing publishes the /pointcloud topic in "map" frame
and in the launch file, lidarslam.launch.py file, I renamed the input_cloud to match with bag file topic-

mapping = launch_ros.actions.Node(
        package='scanmatcher',
        executable='scanmatcher_node',
        parameters=[main_param_dir],
        remappings=[('/input_cloud','/pointcloud')],
        output='screen'
        )

but the /map or /modified topic does not seem to output anything, what frame should I select in my global_frame_id and robot_frame_id of the lidarslam.yaml file to publish the map. Also, should I add any static transform publisher between my frames.

These questions might sound basic, but it will help me to achieve SLAM

[rsasaki0109]

Sorry for the delayed response. How does the terminal output look? If it's Velodyne, I feel like it should work without much trouble.