[ros-users] Using a xacro parameter value in xacro macros

Adolfo Rodríguez Tsouroukdissian dofo79 at gmail.com
Wed May 26 11:22:56 UTC 2010


I'd like to ask whether using a xacro parameter value in xacro macros is
allowed, because it is not clear from the docs [
http://www.ros.org/wiki/xacro]. Consider a simplified version of my file,
which fails on ros-latest from binary packages:

<xacro:parameter name="the_param" value="1" />

<xacro:macro name="macro1" >
  <foo>${the_param}</foo>
</xacro:macro>

<xacro:macro name="macro2" params="macro2_param" >
  <mechanicalReduction>${macro2_param}</mechanicalReduction>
</xacro:macro>


<xacro:macro1 />
     <!--
Fails -->
<xacro:macro2 macro2_param ="${the_param}" />  <!-- Fails -->

The two above lines raise a XacroException that states " Property wasn't
defined: u'the_param' " when xacro is run. Is this expected behavior?.

TIA,

Adolfo


-- 
Adolfo Rodríguez Tsouroukdissian, Ph. D.

Robotics engineer
PAL ROBOTICS S.L
http://www.pal-robotics.com
Tel. +34.93.414.53.47
Fax.+34.93.209.11.09
AVISO DE CONFIDENCIALIDAD: Este mensaje y sus documentos adjuntos, pueden
contener información privilegiada y/o confidencial que está dirigida
exclusivamente a su destinatario. Si usted recibe este mensaje y no es el
destinatario indicado, o el empleado encargado de su entrega a dicha
persona, por favor, notifíquelo inmediatamente y remita el mensaje original
a la dirección de correo electrónico indicada. Cualquier copia, uso o
distribución no autorizados de esta comunicación queda estrictamente
prohibida.

CONFIDENTIALITY NOTICE: This e-mail and the accompanying document(s) may
contain confidential information which is privileged and intended only for
the individual or entity to whom they are addressed.  If you are not the
intended recipient, you are hereby notified that any disclosure, copying,
distribution or use of this e-mail and/or accompanying document(s) is
strictly prohibited.  If you have received this e-mail in error, please
immediately notify the sender at the above e-mail address.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osuosl.org/pipermail/ros-users/attachments/20100526/65d6ea2b/attachment-0002.html>


More information about the ros-users mailing list