ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange

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.

0

Subscribe to multiple topics simultaneously

asked 2015-11-27 06:39:33 -0600

ne0h
21 ●2 ●4 ●6

updated 2015-11-27 06:40:00 -0600

Hi,

I implement a stair detection algorithmus for ROS. Therefore the node analyzes input data from an Asus Xtion camera via openni_launch. Can the node subscribe to both topics, /camera/depth/image and /camera/rgb/image, and receive both image frames to the same time?

Thanks in advance, Max

edit retag flag offensive close merge delete

2 Answers

Sort by » oldest newest most voted

1

answered 2015-11-27 08:29:05 -0600

flag of United Kingdom of Great Britain and Northern Ireland

1642 ●11 ●19 ●26

Have a look at this: http://answers.ros.org/question/9705/...

edit flag offensive delete link

Comments

Looks good, thank you. I will take a closer look next week.

ne0h ( 2015-11-28 03:40:26 -0600 )edit

Thanks, I used an ApproximateTimeSynchronizer ( http://docs.ros.org/api/message_filte... )

ne0h ( 2015-12-03 11:07:29 -0600 )edit

0

answered 2016-01-21 06:02:40 -0600

sxin
11 ●2 ●2

see here. http://answers.ros.org/question/59725...

edit flag offensive delete link

Question Tools

1 follower

Stats

Asked: 2015-11-27 06:39:33 -0600

Seen: 1,191 times

Last updated: Nov 27 '15

Related questions

ROS Answers is licensed under Creative Commons Attribution 3.0 Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.

Powered by Askbot version 0.10.2