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(python) how to save ranges of laser scan related to each time stamp?!

asked 2022-08-11 08:05:16 -0600

Delbina
109 ●47 ●73 ●94

updated 2022-08-11 08:06:09 -0600

I have a python problem. I want to save the output of msg.ranges in a csv file. actually i want to have a csv file that in the first column time stamp are saved, and in the second column ranges. i run a bag file. so for each timestamp i will have its realted ranges.

rosmsg show sensor_msgs/LaserScan 
std_msgs/Header header
  uint32 seq
  time stamp
  string frame_id
float32 angle_min
float32 angle_max
float32 angle_increment
float32 time_increment
float32 scan_time
float32 range_min
float32 range_max
float32[] ranges
float32[] intensities

would you please guide me?

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