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You can use the <arg> tag inside of <launch>, <group>, and <include>. I have updated the wiki docs.
The <arg> XML tag syntax is sometimes confusing. Note that it can be either a declaration or an assignment.
To declare an <arg>, put it almost anywhere in the file before using the $(arg) substitution variable.
To assign a value, nest it within the <include> tag, or pass it to the top launch file via a parameter to roslaunch.
I'm not sure if <arg> could be used in a group and what the purpose would be, but you can certainly use an arg in a group tag like:
<group unless="$(arg disable_vertical_laser)" >
Is that what you want to do?
Asked: 2011-09-14 03:43:55 -0500
Seen: 612 times
Last updated: Sep 15 '11
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