[ros-users] hokuyo_node error

Eric Perko wisesage5001 at gmail.com
Tue Jul 13 01:36:42 UTC 2010


You can check to see if the laser is working by echoing the raw scans with
rostopic, e.g. 'rostopic echo /scans' and seeing if the raw range pings
change. It is going to be difficult to visualize those, but you ought to be
able to see that there is data coming out and that the ranges are reasonable
for the environment the laser is in.

- Eric

On Mon, Jul 12, 2010 at 9:31 PM, Vinay K <vinay.csir at gmail.com> wrote:

> Hi Blaise,
> I checked with the following command and I can see "scan", so laser is
> working right??
> vros at ubuntu:~$ rostopic list
> /clock
> /diagnostics
> /hokuyo_node/parameter_descriptions
> /hokuyo_node/parameter_updates
> /rosout
> /rosout_agg
> /scan
> /time
> Now I tried something different. I executed "$ rosrun hokuyo_node
> hokuyo_node" on the pioneer bot and for visualization on rviz I executed
> "$ rosrun rviz rviz -d `rospack find hokuyo_node`/hokuyo_test.vcg" on my base computer [on which ROS master is running, I am connected to pioneer
> through ssh]
> vros at ubuntu:~$ rosrun rviz rviz -d 'rospack find hokuyo_node' /hokuyo_test.vcg
> [ INFO] 0.000000000: Loading general config from [/home/vros/.rviz/config]
> [ INFO] 0.000000000: Loading display config from [/home/vros/.rviz/display_config]
> [ERROR] 0.000000000: File [rospack find hokuyo_node] does not exist
> As hokuyo_node is publishing to ROS master running on base computer [remote computer], hence rviz can subscribe to scan topic. Am I right?. Please
> tell me how to resolve this issue.
> Thanks
> Vinay
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