Attention: Answers.ros.org is deprecated as of August the 11th, 2023. Please visit robotics.stackexchange.com to ask a new question. This site will remain online in read-only mode during the transition and into the foreseeable future. Selected questions and answers have been migrated, and redirects have been put in place to direct users to the corresponding questions on Robotics Stack Exchange. Additional details are available here.

How to convert velodyne_packets to velodyne_points to view in rviz?

asked 2015-08-26 14:15:29 -0600

eubik
11 ●1 ●1 ●2

I am currently working with the VLP-16 and am having some issues. I have saved our lidar (with external GPS) data into a pcap file using Wireshark.I converted it into a bag file, but am unable to play it in RViz since it only contains velodyne_packets.

So far, I've launched the cloud_nodelet in the velodyne_pointcloud package, but this did not work. It did create a node when I used rostopic list. How can I convert velodyne_packets to velodyne_points in order to view the file in RViz?

edit retag flag offensive close merge delete

add a comment

1 Answer

Sort by » oldest newest most voted

answered 2015-08-27 13:52:48 -0600

joq
25443 ●181 ●256 ●408

You're close, the cloud node or nodelet will do what you want.

In addition to that program, you need to run rosbag play on the file where you saved /velodyne_packets, something like this:

rosrun rosbag play --clock saved_velodyne_packets.bag

edit flag offensive delete link

Comments

When I run the cloud node ( rosrun velodyne_pointcloud cloud_node _calibration:=/home/abe/velodyne/src/velodyne-master/velodyne_pointcloud/params/VLP16db.yaml ) it runs until I start playing the rosbag that contains the velodye_packets. it does a core dump when i try. Any suggestions?

dwolfe ( 2015-10-26 22:07:09 -0600 )edit

There may be a bug in the velodyne_pointcloud package. VLP-16 support is recent and not yet released, so it's not as well tested as the other device models. Please open an issue here: https://github.com/ros-drivers/velody... .

joq ( 2015-10-27 12:41:27 -0600 )edit

add a comment

Question Tools

Stats

Asked: 2015-08-26 13:08:34 -0600

Seen: 1,986 times

Last updated: Aug 27 '15

How to convert velodyne_packets to velodyne_points to view in rviz? edit

1 Answer

Comments

Question Tools

Stats

Related questions

How to convert velodyne_packets to velodyne_points to view in rviz?