Unable to get merged cloud topic DATA

[dpatel1818]

Hi,
I am trying to merge 3 (quanergy M8) lidar point cloud feed. So, I have update laserscan_topics in launch file, and then check all topic data by using rostopic echo. But when I tried to check merged cloud data it is not publishing any thing.

Listed all topics

Merger Node running:
SUMMARY

PARAMETERS

• /laserscan_multi_merger/angle_increment: 0.0058
• /laserscan_multi_merger/angle_max: 2.0
• /laserscan_multi_merger/angle_min: -2.0
• /laserscan_multi_merger/cloud_destination_topic: /merged_cloud
• /laserscan_multi_merger/destination_frame: Lidar_merge
• /laserscan_multi_merger/laserscan_topics: /sensor1/points /...
• /laserscan_multi_merger/range_max: 50.0
• /laserscan_multi_merger/range_min: 0.3
• /laserscan_multi_merger/scan_destination_topic: /scan_multi
• /laserscan_multi_merger/scan_time: 0.0333333
• /rosdistro: kinetic
• /rosversion: 1.12.14

NODES
/
laserscan_multi_merger (ira_laser_tools/laserscan_multi_merger)

ROS_MASTER_URI=http://localhost:11311

process[laserscan_multi_merger-1]: started with pid [6802]

In graph multi_merger node is not subscribing 3 lidars even though I mention in Launch file.

Any Suggestion why node is not subscribing data?

For FYI
rosnode info /laserscan_multi_merger

Node [/laserscan_multi_merger]
Publications:

• /laserscan_multi_merger/parameter_descriptions [dynamic_reconfigure/ConfigDescription]
• /laserscan_multi_merger/parameter_updates [dynamic_reconfigure/Config]
• /merged_cloud [sensor_msgs/PointCloud2]
• /rosout [rosgraph_msgs/Log]
• /scan_multi [sensor_msgs/LaserScan]

Subscriptions:

• /tf [unknown type]
• /tf_static [unknown type]

Services:

• /laserscan_multi_merger/get_loggers
• /laserscan_multi_merger/set_logger_level
• /laserscan_multi_merger/set_parameters

contacting node http://WHQPC-LAV002:36781/ ...
Pid: 12841
Connections:

• topic: /rosout
  • to: /rosout
  • direction: outbound
  • transport: TCPROS