ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange
Ask Your Question

Revision history [back]

click to hide/show revision 1
initial version

Ben_s

I have gone through that tutorial already but i am missing something very basic... The /tf between two frames is a constant matrix...right?? For example a kinect is a fixed distance away from the center of the robot so the /tf is fixed... You said that IMU would make /odom -> /base_link transform... should not that be fixed equal to physical displacement from center of robot.. I know i am wrong here but what am i missing..? Please give an example if you can to explain the working of frames according to the above robot..it would be highly helpful...

P.S. sorry had to answer my own question because the comment word limit was being exceeded..

Ben_s

I have gone through that tutorial already but i am missing something very basic... The /tf between two frames is a constant matrix...right?? For example a kinect is a fixed distance away from the center of the robot so the /tf is fixed... You said that IMU would make /odom -> /base_link transform... should not that be fixed equal to physical displacement from center of robot.. I know i am wrong here but what am i missing..? Please give an example if you can to explain the working of frames according to the above robot..it would be highly helpful...helpful... What i am really asking is that what is the physical significance of the /odom frame w.r.t kinect frame or base_link_frame..

P.S. sorry had to answer my own question because the comment word limit was being exceeded..

Ben_s

I have gone through that tutorial already but i am missing something very basic... The /tf between two frames is a constant matrix...right?? For example a kinect is a fixed distance away from the center of the robot so the /tf is fixed... You said that IMU would make /odom -> /base_link transform... should not that be fixed equal to physical displacement from center of robot.. I know i am wrong here but what am i missing..? Please give an example if you can to explain the working of frames according to the above robot..it would be highly very helpful... What i am really asking is that what is the physical significance of the /odom frame w.r.t kinect frame or base_link_frame..

P.S. sorry had to answer my own question because the comment word limit was being exceeded..