Hi ros-users,<br><br>we went into a strange behaviour of roslaunch, which we don&#39;t know, if it is a bug or expected behaviour.<br><br>Let&#39;s consider a config file, which contains a parameter like this: r: rad(0.5 * pi).<br>
If I load this file via the rosparam command-line tool r gets correctly converted to &quot;1.5707963267948966&quot;.<br>But if I load this file via roslaunch rad and pi will not be converted and the parameter r is &#39;rad(0.5 * pi)&#39;.<br>
The launch file:<br>&lt;launch&gt;<br>  &lt;rosparam command=&quot;load&quot; file=&quot;/path/to/test.yaml&quot; /&gt;<br>&lt;/launch&gt;<br><br>We tested this under c- and d-turtle. Is this the expected behaviour or a bug?<br>
If expected, I will repost my question on <a href="http://answers.ros.org">answers.ros.org</a>, otherwise I can file a ticket, if desired.<br><br>:-) Marcus<br><br>