You could use rosparam tag:<br><a href="http://www.ros.org/wiki/roslaunch/XML/rosparam">http://www.ros.org/wiki/roslaunch/XML/rosparam</a><br>
<br>E.g. <rosparam param="marker_center">[0.0, 0.0]</rosparam><br><br>Anton<br><br><div class="gmail_quote">On Sun, Apr 11, 2010 at 2:35 AM, Dejan Pangercic <span dir="ltr"><<a href="mailto:dejan.pangercic@gmail.com">dejan.pangercic@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Hi Bill,<br>
<br>
according to the documentation here:<br>
<a href="http://www.ros.org/wiki/roslaunch/XML/param" target="_blank">http://www.ros.org/wiki/roslaunch/XML/param</a>, such construct is not<br>
possible. I circumvent  that however with string cpp splitting:<br>
<param name="pcd_name_position_param" type="string" value="1.5 0.0 0.5" /><br>
<br>
And then in your node you'd want a simple parser:<br>
.....<br>
geometry_msgs::Point32 pcd_name_position_;<br>
nh_.param ("pcd_name_position_param", pcd_name_position_param_,<br>
std::string("1.0 1.0 1.0"));<br>
std::istringstream iss(pcd_name_position_param_);<br>
iss >> pcd_name_position_.x >> pcd_name_position_.y >> pcd_name_position_.z;<br>
ROS_DEBUG("pcd_name_position_[0]: %f pcd_name_position_[1]: %f<br>
pcd_name_position_[2]: %f;",<br>
                   pcd_name_position_.x, pcd_name_position_.y,<br>
pcd_name_position_.z);<br>
......<br>
hope this helps, D.<br>
<div><div></div><div class="h5">On Sun, Apr 11, 2010 at 10:53 AM, Bill Morris <<a href="mailto:morris@ee.ccny.cuny.edu">morris@ee.ccny.cuny.edu</a>> wrote:<br>
> I can't find documentation anywhere for formatting an array properly in<br>
> the launch file.<br>
><br>
> This does not work<br>
> <param name="marker_center" value="[0.0, 0.0]"/><br>
><br>
> This works<br>
> <rosparam command="load" file="marker.yaml"/><br>
><br>
> where marker.yaml is<br>
><br>
> marker_center: [0.0,0.0]<br>
><br>
> Any ideas as to what I'm doing wrong?<br>
><br>
> Thanks,<br>
> -Bill<br>
><br>
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><br>
<br>
<br>
<br>
</div></div><font color="#888888">--<br>
MSc. Dejan Pangercic<br>
PhD Student/Researcher<br>
Computer Science IX<br>
Technische Universität München<br>
Telephone: +49 (89) 289-17780<br>
E-Mail: <a href="mailto:dejan.pangercic@in.tum.de">dejan.pangercic@in.tum.de</a><br>
WWW: <a href="http://ias.cs.tum.edu/people/pangercic" target="_blank">http://ias.cs.tum.edu/people/pangercic</a><br>
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</div></div></blockquote></div><br>