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Remaping topics doesn't work

asked 2016-11-11 07:02:15 -0500

eed gravatar image

updated 2016-11-11 08:14:13 -0500

gvdhoorn gravatar image

Hi I'm using Ros and I have some Camera-Data on topic

    /kinect2/sd/points

now I want to remap them to

      /camera/depth/points

Here the code I use:

<include file="$(find kinect2_bridge)/launch/kinect2_bridge.launch">
    <param name = "_depth_method"   value="cuda" />
    <param name = "_reg_method"     value="cpu" />
    <remap from="/camera/depth/points"  to="/kinect2/sd/points"/> 
</include>

Now if I listen with "rotopic echo" to the topic of "kinect2/sd/points" I got many output. But if I listen to the topic "/camera/depth/points" I get no Data.

Can anybody help me is the order of the remap right=?

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You want to map from /kinect2/sd/points to /camera/depth/points and you have

<remap from="/camera/depth/points" to="/kinect2/sd/points"/>

you need

<remap from="/kinect2/sd/points" to="/camera/depth/points"/>

They're the wrong way around

MarkyMark2012 gravatar image MarkyMark2012  ( 2016-11-12 08:16:49 -0500 )edit

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answered 2016-11-11 08:08:17 -0500

MarkyMark2012 gravatar image

updated 2016-11-11 08:09:14 -0500

You won't get output. The topic, as you mentioned, has been remapped. The node doesn't duplicate the data

If you want to duplicate the topic then use relay:

http://wiki.ros.org/topic_tools/relay

Mark

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Asked: 2016-11-11 07:02:15 -0500

Seen: 637 times

Last updated: Nov 11 '16