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Incosistent map generation when using merged laser scan using ira_laser_tools #109
Description
I have two sources of LiDAR sensor on the robot one in the front and other on the back with 270 field view for both, I am using https://github.com/iralabdisco/ira_laser_tools to merge the two sensors to produce a single 360 field of laser scan data. The odom => base_link transform is provide by GAZEBO.
Gmapping does produce a map with merged LaserScan data but the map generated is a bit inconsistent,
The map generated by any of the front or rear LaserScan sensor is as expected,
Below is the metadata for all the sensor,
Merged:
header:
seq: 244
stamp:
secs: 158
nsecs: 274000000
frame_id: "merge_lidar"
angle_min: -3.1414999961853027
angle_max: 3.1414999961853027
angle_increment: 0.005799999926239252
time_increment: 0.0
scan_time: 0.03333330154418945
range_min: 0.20000000298023224
range_max: 5.0
Front:
header:
seq: 15
stamp:
secs: 134
nsecs: 513000000
frame_id: "front_lidar_sensor"
angle_min: -2.3561899662017822
angle_max: 2.3561899662017822
angle_increment: 0.008742820471525192
time_increment: 0.0
scan_time: 0.0
range_min: 0.20000000298023224
range_max: 5.0
Rear:
header:
seq: 565
stamp:
secs: 191
nsecs: 371000000
frame_id: "rear_lidar_sensor"
angle_min: 0.7853900194168091
angle_max: 5.497769832611084
angle_increment: 0.008742820471525192
time_increment: 0.0
scan_time: 0.0
range_min: 0.20000000298023224
range_max: 5.0
What could be the reason which leads to such an inconsistent map generation using merged LaserScan data?
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