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Can I provide a "Null" value for a xacro macro parameter?

xacro
urdf

asked 2013-08-08 06:04:02 -0500

nemesis

237 ●39 ●45 ●57

updated 2013-11-18 19:32:37 -0500

tfoote

58457 ●128 ●550 ●526 http://www.ros.org/

I have a .urdf.xacro file where a particular xacro macro has been defined with a few parameters including - "mesh". When I instantiate this particular macro in another file, I wish to leave out the "mesh" parameter and instead define a shape (like a rectangular box) of my own.

Is this possible at all?

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answered 2013-08-12 01:42:45 -0500

This post is a wiki. Anyone with karma >75 is welcome to improve it.

The xacro converter seemed to be quite literally to me, but you could look at it's source.

Or you could remove mesh/shape from that macro and make two macros extending the base macro for both mesh and shape.

And mesh="" won't work?

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I will look into the source, thanks! I tried mesh =" " but that didn't work because it searched for the ".stl" file (no name extension). I will check if modifying the xacro works or not. Thanks again!

nemesis ( 2013-08-12 06:48:38 -0500 )edit

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Asked: 2013-08-08 06:04:02 -0500

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Can I provide a "Null" value for a xacro macro parameter? edit

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Can I provide a "Null" value for a xacro macro parameter?