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Subscribe to multiple topics simultaneously

asked 2015-11-27 06:39:33 -0500

ne0h
21 ●2 ●4 ●6

updated 2015-11-27 06:40:00 -0500

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

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answered 2015-11-27 08:29:05 -0500

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/...

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

ne0h ( 2015-11-28 03:40:26 -0500 )edit

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

ne0h ( 2015-12-03 11:07:29 -0500 )edit

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answered 2016-01-21 06:02:40 -0500

sxin
11 ●2 ●2

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

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Asked: 2015-11-27 06:39:33 -0500

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Last updated: Nov 27 '15

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