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spacenav_node tutorial help [closed]

asked 2011-06-01 15:20:03 -0500

jayson ding gravatar image

updated 2011-08-22 10:02:54 -0500

mjcarroll gravatar image

Dear all

I tried to go through spacenav_node two basic tutorials. I was able to echo the 6DOF joystick on topic /spacenav/joy. The reading from the joystick is correct. However when I run the turtle sim, the turtle did not move at all. After double print out the rxgraph, I found turtle_teleop node is subscripting topic /joy[unknown type]. I guess it might be the bug.

So I tried to changed file .../spacenav_node/src/spacenav_node.cpp, make it published /joy topic instead.

ros::Publisher joy_pub = node_handle.advertise<joy::joy>("/joy", 2);

It does not help. node spacenav_node still publish /spacenav/joy. I am new to ROS. I guess there is some easy and right way to do this. Any hint or suggestion will be appreciated. thanks.

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Closed for the following reason the question is answered, right answer was accepted by Wim
close date 2011-08-02 11:27:09

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answered 2011-06-01 23:29:59 -0500

dornhege gravatar image

Do not change the code. Use remapping instead.

e.g. start turtle_teleop with joy:=spacenav_joy.

You should read the documentation about topics and remapping to understand what's going on.

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answered 2011-06-02 01:33:22 -0500

jayson ding gravatar image

Hi Dornhege thanks you very much for your reply. Just fixed the bug. The remapping in launch/turtle_spacenav is not correct. It was: <remap from="" "turtle_spacenav="" joy"="" to="" "joy"=""> I changed it back to <remap from="" "spacenav="" joy"="" to="" "joy"=""> Now it works. I am quite happy. It is a bug in the tutorial. Someone should fix it. thanks a lot.

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i'll fix the tutorial thanks- i created a ticket here:
mmwise gravatar image mmwise  ( 2011-06-09 09:53:46 -0500 )edit

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Asked: 2011-06-01 15:20:03 -0500

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Last updated: Jun 02 '11