I appreciate your help. I want to generate tf statically so I use static_transform_publisher Attached file is generated using view_frames and following code is launch file to generate tf. Thank you in advance your help. ////// ////// 2010/11/19 Eitan Marder-Eppstein > Eunchul Jeon, > > It seems likely that something is wrong in your tf tree when trying to > transform points from the laser frame to the odometric frame. Can you use a > tool like view_frames or tf_echo to find out what your tree looks like? In > particular you should be able to run tf_echo laser odom successfully before > expecting gmapping to work. > > Hope this helps, > > Eitan > > On Thu, Nov 18, 2010 at 5:01 AM, eunchul Jeon wrote: > >> Hi, I'm Eunchul Jeon, >> >> I saw following warning when I run the rosrun gmapping slam_gmapping >> scan:=base_scan >> >> [ WARN] [1290084259.016741027]: Message from [/hokuyo_node] has a >> non-fully-qualified frame_id [laser]. Resolved locally to [/laser]. This is >> will likely not work in multi-robot systems. This message will only print >> once. >> [ WARN] [1290084273.997493021]: MessageFilter [target=/odom ]: Dropped >> 100.00% of messages so far. Please turn the [ros.gmapping.message_notifier] >> rosconsole logger to DEBUG for more information. >> >> and I ran the roswtf command, and saw following warning >> >> WARNING The following node subscriptions are unconnected: >> * /rviz_1290083985383805192: >> * /scan >> * /reset_time >> * /slam_gmapping: >> * /reset_time >> * /LaserListener: >> * /base_scan1 >> >> Maybe I need to connect reset_time node but I can't find any information >> about that. >> >> Thank you in advance your help. >> >> -- >> ================================================ >> Eunchul Jeon >> >> M.S. Student, Intelligent Systems and Neurobotics lab, >> Dept. Computer Science, KAIST >> Science town, Daejeon, 305-701, South Korea >> TEL: 82 42 350 3580 >> E-mail: jsharp@kaist.ac.kr, jsharp83@gmail.com >> Homepage: http://isnl.kaist.ac.kr >> ================================================ >> >> _______________________________________________ >> ros-users mailing list >> ros-users@code.ros.org >> https://code.ros.org/mailman/listinfo/ros-users >> >> > > _______________________________________________ > ros-users mailing list > ros-users@code.ros.org > https://code.ros.org/mailman/listinfo/ros-users > > -- ================================================ Eunchul Jeon M.S. Student, Intelligent Systems and Neurobotics lab, Dept. Computer Science, KAIST Science town, Daejeon, 305-701, South Korea TEL: 82 42 350 3580 E-mail: jsharp@kaist.ac.kr, jsharp83@gmail.com Homepage: http://isnl.kaist.ac.kr ================================================