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2015-12-17 22:02:04 -0500 commented answer Hector_Slam mapping Hokuyo

hector slam can handle slam without any odom param, I can understand when the robot do the linear move, but think about this situation, if the robot just do rotation in the same place, the hector slam can know the rotation accurate? and if it is a round spheric environment, I don't think hector c

2015-12-17 21:59:58 -0500 asked a question how can we get accurate orientation data when we use hector slam

hector slam can handle slam without any odom param, I can understand when the robot do the linear move, but think about this situation, if the robot just do rotation in the same place, the hector slam can know the rotation accurate? and if it is a round spheric environment, I don't think hector can get the orientation just by lidar scan data. is that right? And how can we supply the accurate orientation info, should we use imu or mechanism odometry? Thank you very much

2015-12-16 01:09:57 -0500 commented question how to fix the gmapping problem, and how to see rosconsole logger

and how to " turn the [ros.gmapping.message_notifier] rosconsole logger to DEBUG" thanks a lot

2015-12-16 01:08:47 -0500 commented question how to fix the gmapping problem, and how to see rosconsole logger

the output is "[ WARN] [1450226728.942292503]: MessageFilter [target=odom ]: Dropped 100.00% of messages so far. Please turn the [ros.gmapping.message_notifier] rosconsole logger to DEBUG for more information."

Thank you very much!

2015-12-15 22:23:32 -0500 asked a question how to fix the gmapping problem, and how to see rosconsole logger

there is a watning, but how to see the log, and where is the log ? Thankyou