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 save a point cloud?

asked 2011-11-06 18:34:17 -0500

liquidmonkey
37 ●10 ●11 ●13

i'm starting my first ros project :) i have rviz up with a point cloud from a sensor. how do i save that point cloud for offline testing? i'd like to save just one frame as well as 10 minutes worth.

how can i do that?

thanks!

edit retag flag offensive close merge delete

add a comment

1 Answer

Sort by » oldest newest most voted

answered 2011-11-06 19:00:31 -0500

roehling
1951 ●25 ●28 ●43 http://www.fkie.fraunhofer.de/

Take a look at the following documentation pages:

rosbag can record and play ROS topics. This is the best way to record data if you want to emulate the live system behavior and/or avoid extra code to deal with file I/O.
You can also read and write point clouds from/to PCD files.

edit flag offensive delete link

Comments

looks great, thank you! is it possible to convert a bag file into a pcd file for viewing of the point cloud? or will rosbag play take care of that?

liquidmonkey ( 2011-11-06 19:58:20 -0500 )edit

"rosbag play" publishes the recorded ROS topic, so you can visualize it pretty much the same way as if the data were live. There is also a tool bag_to_pcd in the pcl_ros package. It's your choice.

roehling ( 2011-11-06 21:28:47 -0500 )edit

bag_to_pcd is exactly what i'm looking for, thanks!

liquidmonkey ( 2011-11-07 01:39:51 -0500 )edit

add a comment

Question Tools

1 follower

Stats

Asked: 2011-11-06 18:34:17 -0500

Seen: 7,498 times

Last updated: Nov 06 '11

how to save a point cloud? edit

1 Answer

Comments

Question Tools

Stats

Related questions

how to save a point cloud?