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local_path not showing in rviz while robot navigates

asked 2015-02-25 16:20:30 -0500

Pototo gravatar image

updated 2015-02-25 16:21:02 -0500

Hi Folks,

I'm trying to show the local path when my robot is navigating, but the path only shows for about 1/4 of a second, disappears for about 10 seconds, then repeats.

I know I am subscribing to the right topic because, like I said, I can see the local path. But why is it behaving that way? Any parameters I need to update (maybe through dynamic configuration while the robot runs), or is there a more appropriate topic I shall subscribe to?

The global path shows up fine, and it stays until the robot reaches the goal point.

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answered 2015-02-25 17:36:01 -0500

William gravatar image

Not sure, you can try looking at the path being published using rostopic echo <topic_name> and see if there is anything fishy going on. The only thing I could think of is that zero length paths are being published on the same topic (maybe multiple nodes are publishing to the same topic). You could also do rostopic info <topic_name> to make sure only one process is publishing to it.

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The teleop/joystick node does not seem to be publishing, so I did not see any conflict. I still can't figure out what is going on. I'll also make sure that the robot is not actually latching to the last command that teleop sent it.

Pototo gravatar imagePototo ( 2015-02-26 15:57:02 -0500 )edit

Any updates on debugging this?

tfoote gravatar imagetfoote ( 2015-04-05 15:44:56 -0500 )edit

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Asked: 2015-02-25 16:20:30 -0500

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Last updated: Feb 25 '15