search

UbiquityRobotics / raspicam_node

ROS node for camera module of Raspberry Pi
BSD 3-Clause "New" or "Revised" License
293 stars 162 forks source link

Cannot display image in rqt and rviz #106

Closed houhaol closed 3 years ago

houhaol commented 3 years ago

Hello,

My Turttlebot3 waffle_pi was configured with Ubuntu Mate 18.04 32-bit and melodic ROS. I installed this raspicam_node as your instructions but modified a bit as this issue suggest #102 which just skip the skip the --rosdistro=kinetic option.

It built well but when i run it, no image showed in rqt. [REMOTE PC] roscore [TURTLEBOT1] roslaunch turtlebot3_bringup turtlebot3_rpicamera.launch or roslaunch raspicam_node camerav2_1280x960.launch [REMOTE PC] roslaunch turtlebot3_bringup turtlebot3_remote.launch [REMOTE PC] rqt_image_view Does not show any camera input (shows some gradient) image

Can you help about this issue? Thanks a lot.

anfederman commented 3 years ago

See if topics are echoed

Rostopic list

Look for camera topics

Then

rostopic echo /camera/image_raw Not sure the exact name

If you see data, rqt-image view should list these, and you select them. If no data, then you have either a network or loading issue. If there are network issues you will see no data in other sensor topics.

Good luck.

houhaol commented 3 years ago

See if topics are echoed

Rostopic list

Look for camera topics

Then

rostopic echo /camera/image_raw Not sure the exact name

If you see data, rqt-image view should list these, and you select them. If no data, then you have either a network or loading issue. If there are network issues you will see no data in other sensor topics.

Good luck.

Hi, Thanks for your reply.

I listed all published topics using rostopic list. They are already there, on my remote PC image

Then i printed out the data using echo, it works. But still can not visualize in rqt_view_image.

I tried these on my turtlebot3 solely, put aside my remote pc. The camera works on rqt and rviz. On bot `roslaunch raspicam_node camerav2_1280x960.launch rqt_image_view'

would it be a loading issue or related to remote control?

houhaol commented 3 years ago

I failed using a WSL system for this. I successfully made it work on my Linux remote PC now. But any idea to fix this issue on wsl.

Lmixq commented 1 year ago

I have the same problem. I listed the published topics and echo them. They are there. But I can't view on rviz and rqt by WSL and XLaunch. Have you solved it?

anfederman commented 1 year ago

Make sure both ROS_IP and ROS_MASTER_URI are expressed as IP numbers, not named.

Example on workstation:

export ROS_IP=10.0.0.24,

export ROS_MASTER_URI=http://10.0.0.105:11311

On Sat, Aug 6, 2022, 1:10 PM Lmixq @.***> wrote:

I have the same problem. I listed the published topics and echo them. They are there. But I can't view on rviz and rqt by WSL and XLaunch. Have you solved it?

— Reply to this email directly, view it on GitHub https://github.com/UbiquityRobotics/raspicam_node/issues/106#issuecomment-1207275958, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABHZ3756BSYY7ZMIJGD5YADVX3BBTANCNFSM4STEEPEQ . You are receiving this because you commented.Message ID: @.***>