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6

roslaunch xml: how to pass a list of strings as parameters?

asked 2015-07-08 14:58:50 -0600

thebyohazard
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updated 2021-11-13 13:53:21 -0600

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8729 ●137 ●239 ●256 https://github.com/lucasw

Is there any way to pass a list of strings as an argument in a launch file? Something like

<launch>
  <arg name="source_list" default="[a_topic,a_second_topic]"/>
  <node>
     <param name="source_list" value="$(arg source_list)"/>
  </node>
</launch>

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2 Answers

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6

answered 2018-03-22 10:37:47 -0600

Tiki
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updated 2019-03-14 16:37:08 -0600

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8729 ●137 ●239 ●256 https://github.com/lucasw

This:

<launch>
  <arg name="source_list" default="[a_topic,a_second_topic]"/>

    <node ...>

         <rosparam param="source_list" subst_value="True">$(arg source_list)</rosparam> 

    </node>
</launch>

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2

answered 2015-09-22 05:01:28 -0600

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You can use rosparam. There is an example given here: http://wiki.ros.org/roslaunch/XML/ros...

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Asked: 2015-07-08 14:58:50 -0600

Seen: 13,689 times

Last updated: Nov 13 '21

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