Hokuyo_node with groovy

asked 2013-02-21 04:49:34 -0600

CarolineQ
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updated 2014-01-28 17:15:21 -0600

ngrennan
1 ●1 ●1

Hello,

I am trying to use an Hokuyo laser with groovy. I followed the tutorial http://www.ros.org/wiki/hokuyo_node/Tutorial/UsingTheHokuyoNode but I have a problem when I want to see the laser scan in Rviz. The config file /hokuyo_test.vcg was created for fuerte and is not used anymore with groovy. So when I launch Rviz nothing happens.

Any advice ?

Caroline

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2 Answers

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answered 2013-02-21 05:09:07 -0600

dornhege

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Just add a Laser Scan display to rviz and select the laser topic.

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Thanks for the advice, but the problem is that no topic is available for the laser scan. Moreover, the frame /laser is not available in Fixed Frame...

CarolineQ ( 2013-02-21 20:39:10 -0600 )edit

That is because no one publishes that. If you just want to look at the laser data, it's OK to manually enter the frame in the fixed frame field.

dornhege ( 2013-02-21 22:28:53 -0600 )edit

The problem is solved. For my part, I had to use the topic /scan and not /laser but I entered it in the fixed frame field as you said and it works. Thanks.

CarolineQ ( 2013-02-21 22:37:44 -0600 )edit

Hi I am having the same issue, however when I add "/scan" to the fixed frame, under global options, I am still getting a Global Status warning "No tf data, Actual error: Fixed frame [/scan/] does not exist"

I know scan is being published as I can stream it over the command line with rostopic

HenryW ( 2013-03-25 16:33:26 -0600 )edit

Hi Henry, did you try to manually put /laser in the fixed frame and to use /scan in the topic of the Laser Scan ?

CarolineQ ( 2013-03-25 22:56:17 -0600 )edit

aaaaah woops...had /scan in both, putting /laser in the fixed frame now displays the data. Thank you!

HenryW ( 2013-03-26 12:09:55 -0600 )edit

hi guys i try to use hokuyo laser but when i write "rosrun hokuyo_node hokuyo_node" this error occurd" [rospack] Error: stack/package hokuyo_node not found" what can i do?