[ros-users] NXT urdf files and display

Miguel G. capelare at gmail.com
Sun Nov 13 21:28:59 UTC 2011


Hi David:

Thanks for your reply, I did what you told me, here you go:

http://bit.ly/vZNIi5

Sincerely,
Miguel.


> Can you please post this on answers.ros.org along with the first few lines
> of your URDF?
> On Thu, Nov 10, 2011 at 9:17 AM, Miguel G. <capelare at gmail.com> wrote:
> > Hi, I'm trying to visualize the URDF models of the nxt_robots (robot.urdf
> > files on each package) with the display.launch program from the
> > urdf_tutorials stack, but I don't seem to be able to do so, it keeps
> > crashing all the time:
> >
> > started core service [/rosout]
> >> process[joint_state_publisher-2]: started with pid [2754]
> >> process[robot_state_publisher-3]: started with pid [2759]
> >> process[rviz-4]: started with pid [2762]
> >> Traceback (most recent call last):
> >>   File
> >> "/home/capelare/ros/urdf_tools/joint_state_publisher/
> joint_state_publisher",
> >> line 208, in <module>
> >>     jsp = JointStatePublisher()
> >>   File
> >> "/home/capelare/ros/urdf_tools/joint_state_publisher/
> joint_state_publisher",
> >> line 25, in __init__
> >>     robot = URDF().parse(description)
> >>   File
> >> "/home/capelare/ros/urdf_tools/urdf_python/src/urdf_python/urdf.py",
> line
> >> 506, in parse
> >>     base = xml.dom.minidom.parseString(xml_string)
> >>   File "/usr/lib/python2.7/xml/dom/minidom.py", line 1924, in
> parseString
> >>     return expatbuilder.parseString(string)
> >>   File "/usr/lib/python2.7/xml/dom/expatbuilder.py", line 940, in
> >> parseString
> >>     return builder.parseString(string)
> >>   File "/usr/lib/python2.7/xml/dom/expatbuilder.py", line 223, in
> >> parseString
> >>     parser.Parse(string, True)
> >> xml.parsers.expat.ExpatError: not well-formed (invalid token): line 2,
> >> column 12
> >> [joint_state_publisher-2] process has died [pid 2754, exit code 1].
> >> log files:
> >> /home/capelare/.ros/log/b0629bba-0bad-11e1-93ed-
> 001d4ffc607c/joint_state_publisher-2*.log
> >
> >
> > That's what I get on the Terminal. Then rviz opens and displays all the
> > meshes on the origin. Any ideas? Too many joints, maybe? The robot.urdf
> > file passes the check_urdf tool, so I guess the syntax is OK.
> > BTW, display.launch works fine with the urdf files I made following the
> > urdf_tutorials, if you're wondering.
> >
> > I'm still getting used to ros, urdf, rviz... and I tried to make this
> work
> > by myself, so maybe this is the stupidest problem ever, but I'm totally
> > lost.
> >
> > Thanks for your time,
> > Miguel :)
> >
> > _______________________________________________
> > ros-users mailing list
> > ros-users at code.ros.org
> > https://code.ros.org/mailman/listinfo/ros-users
> >
> >
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