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2020-12-22 07:35:07 -0500	received badge	● Famous Question (source)
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2016-03-04 23:51:24 -0500	asked a question	rviz: AttributeError: 'module' object has no attribute 'VisualizationFrame' Hello, I'm trying to explore rviz for line visualization. I am trying to follow the tutorial from http://docs.ros.org/hydro/api/rviz_py... , but when I try to execute the file, I get an error `AttributeError: 'module' object has no attribute 'VisualizationFrame'` I'm not sure why I'm getting this error. I'm using ros-indigo. Please help.
2016-03-04 23:48:12 -0500	commented answer	What are the units of Odometry/orientation.z/w and Twist.angular.z fields? Thanks for the help.
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2016-02-29 23:26:51 -0500	asked a question	What are the units of Odometry/orientation.z/w and Twist.angular.z fields? I an new to ROS and am trying to understand the units in which the values in the Odometry.orientation.w and z fields and what do they represent. I am trying to rotate a turtlebot by a specific number of degrees. Is there a way to achieve it as I am able to set only angular velocities and whose unit I don't know either.
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2016-01-30 12:50:58 -0500	asked a question	bash: /opt/ros/jade/setup.bash: No such file or directory Hi, I have been trying to install ros on my Ubuntu 14.04 using the instructions from http://wiki.ros.org/jade/Installation... . I have followed all the instructions as is but when I run bas, I get the error that setup.bash does not exist. I'm not sure if I'm missing anything. Please help. EDIT: I executed the following instructions: `$ sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu $(lsb_release -sc) main" > /etc/apt/sources.list.d/ros-latest.list' $ sudo apt-key adv --keyserver hkp://pool.sks-keyservers.net:80 --recv-key 0xB01FA116 $ sudo apt-get update $ sudo apt-get install ros-jade-desktop-full $ sudo rosdep init $ rosdep update $ echo "source /opt/ros/jade/setup.bash" >> ~/.bashrc $ source ~/.bashrc bash: /opt/ros/jade/setup.bash: No such file or directory $ ls /opt/ros/jade/ bin include lib share`