RVIZ will not execute

rviz
lidar

asked 2012-06-03 10:29:52 -0500

rzv0004
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I am trying to run a LiDar taken from the Neato XV-11 vacuum cleaner on ROS nad amd using RVIZ to visualize the data coming from the sensor. However, I ran into the problem that RVIZ was not receiving and MAP data to display. I consulted the site and As per the video tutorial under map, I found that I did not have any topics being displayed. I tried to enter the topic manually but not RVIZ will not initialize and I am receiving the following error.

[ERROR] [1338754771.604753719]: Caught exception while loading: Character [ ] at element [3] is not valid in Graph Resource Name [map (nav_msgs/OccupancyGrid)]. Valid characters are a-z, A-Z, 0-9, / and _.

Kindly suggest what when wrong and what can be done regarding the same.

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answered 2012-06-04 00:04:45 -0500

felix k

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Seems to me you placed a space in map (nav_msgs/OccupancyGrid) which is not valid.

Remove that space in ~/.rviz/display_config or ~/.rviz/config and start rviz.

Previously:

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answered 2012-06-04 18:37:18 -0500

rzv0004
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Thanx, but where do I change it? It occured when i tried to manually change the topics in RVIZ, now even the RVIZ windo won't open. I tired looking in the config file in my rviz folder but could not find where the change was made by RVIZ. Kindly help.

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Open both mentioned files and search for your buggy string "map (nav_msgs/OccupancyGrid)" or parts of it. And use comments on answers :)

felix k ( 2012-06-06 01:15:59 -0500 )edit

Thanx. But I cannot open the file. I don't know where it is and I am having a hard time finding it. I tried to open the file through the cmd window but it keeps telling me a bunch of errors. I tried the open, edit and even the start command. None of them open the file that I want. Any suggestion?

rzv0004 ( 2012-06-12 15:29:34 -0500 )edit

Umm.. the tilde ~ in linux paths is used to represent the users home directory. type cd ~/.rviz and then ls -- Guess #2: the directory for the new rviz in fuerte is ~/.rviz_qt

felix k ( 2012-06-12 23:35:55 -0500 )edit

Im sorry, I should have mentioned this earlier. I am working on the electric version of the ros and am currently working on ubantu.

rzv0004 ( 2012-06-27 13:50:48 -0500 )edit

I found a file named GetMap.lisp

but on top of the life the first line says auto generated and do not edit!

rzv0004 ( 2012-06-27 14:24:44 -0500 )edit

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