Hi ,
I an newer for ros.I have ubuntu14.04 and ros indigo running on my computer.I have some of the problem with the aprilslam.my camera node is /usb_cam/image_raw,so I changed the node in the slam.launch, and then I run roslaunch apriltag_ros slam.launch, I meet the problem in RVIZ
-> Global status
-> Warn
-> 'No tf data. Actual error: Fixed Frame [world] does not exist'
and when the image topic is /usb_cam/image_raw/detections,there is no image show out,but I change the image topic to /usb_cam/image_raw,I can see the image from the camera,
what should I do?
Any guidance would be greatly appreciated.
Hi , I an newer for ros.I have ubuntu14.04 and ros indigo running on my computer.I have some of the problem with the aprilslam.my camera node is /usb_cam/image_raw,so I changed the node in the slam.launch, and then I run roslaunch apriltag_ros slam.launch, I meet the problem in RVIZ -> Global status -> Warn -> 'No tf data. Actual error: Fixed Frame [world] does not exist' and when the image topic is /usb_cam/image_raw/detections,there is no image show out,but I change the image topic to /usb_cam/image_raw,I can see the image from the camera, what should I do? Any guidance would be greatly appreciated.