<br><br><div class="gmail_quote">On Wed, May 26, 2010 at 8:32 PM, John Hsu <span dir="ltr"><<a href="mailto:johnhsu@willowgarage.com">johnhsu@willowgarage.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;">
seems xacro:parameter should be xacro:property, then things should work. I'll update the wiki.<br></blockquote><div><br>Yes, xacro:property works. For the record, a xacro:property cannot be declared inside a xacro:macro.<br>
<br>Adolfo<br><br><br></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">John<br><br><div class="gmail_quote">2010/5/26 Adolfo Rodríguez Tsouroukdissian <span dir="ltr"><<a href="mailto:adolfo.rodriguez@pal-robotics.com" target="_blank">adolfo.rodriguez@pal-robotics.com</a>></span><br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div><div></div><div class="h5">Update.<br><br>The problem seems to be more general in that I am unable to use xacro:param at all, which makes me think that I might be using it the wrong way. This code also errors out :<br>
<br><span style="font-family: courier new,monospace;"><?xml version="1.0"?></span><br style="font-family: courier new,monospace;">
<br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"><robot xmlns:xacro="<a href="http://www.ros.org/wiki/xacro" target="_blank">http://www.ros.org/wiki/xacro</a>"</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> xmlns:sensor="<a href="http://playerstage.sourceforge.net/gazebo/xmlschema/#sensor" target="_blank">http://playerstage.sourceforge.net/gazebo/xmlschema/#sensor</a>"</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> xmlns:controller="<a href="http://playerstage.sourceforge.net/gazebo/xmlschema/#controller" target="_blank">http://playerstage.sourceforge.net/gazebo/xmlschema/#controller</a>"</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> xmlns:interface="<a href="http://playerstage.sourceforge.net/gazebo/xmlschema/#interface" target="_blank">http://playerstage.sourceforge.net/gazebo/xmlschema/#interface</a>"</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> name="foo" ></span><span style="font-family: courier new,monospace;"></span><br><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> <xacro:parameter name="the_param" value="/path/to/foo" /></span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> <include filename="${the_param}" /></span><br><span style="font-family: courier new,monospace;"></robot></span><br><br>Is there something obviously wrong here?. I tried grepping the ros codebase for xacro:param occurrences to compare against, but found none.<br>
<br>Adolfo<br><br><div class="gmail_quote">2010/5/26 Adolfo Rodríguez Tsouroukdissian <span dir="ltr"><<a href="mailto:dofo79@gmail.com" target="_blank">dofo79@gmail.com</a>></span><div><div></div><div><br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
I'd like to ask whether using a xacro parameter value in xacro macros is allowed, because it is not clear from the docs [<a href="http://www.ros.org/wiki/xacro" target="_blank">http://www.ros.org/wiki/xacro</a>]. Consider a simplified version of my file, which fails on ros-latest from binary packages:<br>
<br><span style="font-family: courier new,monospace;"></span><span style="font-family: courier new,monospace;"><xacro:parameter name="the_param" value="1" /></span><br style="font-family: courier new,monospace;">
<br><span style="font-family: courier new,monospace;"><xacro:macro
name="macro1" ></span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">
<foo>${</span><span style="font-family: courier new,monospace;">the_param</span><span style="font-family: courier new,monospace;">}</foo></span><span style="font-family: courier new,monospace;"><br>
</xacro:macro></span><br><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"><xacro:macro name="macro2" params="macro2_param" ></span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> <mechanicalReduction>${macro2_param}</mechanicalReduction></span><span style="font-family: courier new,monospace;"><br><span style="font-family: courier new,monospace;"></xacro:macro></span></span><br style="font-family: courier new,monospace;">
<br><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"><xacro:macro1 /></span> <span style="font-family: courier new,monospace;"><!-- Fails
--></span><br><span style="font-family: courier new,monospace;"><xacro:macro2 </span><span style="font-family: courier new,monospace;">macro2_param</span><span style="font-family: courier new,monospace;"> ="${</span><span style="font-family: courier new,monospace;">the_param</span><span style="font-family: courier new,monospace;">}" /></span> <span style="font-family: courier new,monospace;"><!-- Fails
--></span><br><br><span style="font-family: arial,helvetica,sans-serif;">The two above lines raise a XacroException that states " Property wasn't defined: u'the_param'</span> " when xacro is run. Is this expected behavior?.<br>
<br>TIA,<br><br>Adolfo<br><br clear="all"><br>-- <br>Adolfo Rodríguez Tsouroukdissian, Ph. D.<br><br>Robotics engineer<br>PAL ROBOTICS S.L<br><a href="http://www.pal-robotics.com" target="_blank">http://www.pal-robotics.com</a><br>
Tel. +34.93.414.53.47<br>Fax.+34.93.209.11.09<br>
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