Create README.md from Wiki content #342
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| * The camera driver advertises a service call `<camera>/request_image` of type [polled_camera/GetPolledImage](http://www.ros.org/doc/api/polled_camera/html/srv/GetPolledImage.html). | ||
| * The client calls the service, specifying an output namespace. | ||
| * On receiving a request, the driver captures an image and returns its time stamp in the service response. | ||
| * The driver publishes (latching) the [sensor_msgs/Image](http://www.ros.org/doc/api/sensor_msgs/html/msg/Image.html) and [sensor_msgs/CameraInfo](http://www.ros.org/doc/api/sensor_msgs/html/msg/CameraInfo.html) to `<response_namespace>/image_raw` and `<response_namespace>/camera_info`. |
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Same here https://github.com/ros2/common_interfaces/blob/rolling/sensor_msgs/msg/Image.msg and https://github.com/ros2/common_interfaces/blob/rolling/sensor_msgs/msg/CameraInfo.msg
You might use this other one https://docs.ros2.org/foxy/api/sensor_msgs/msg/Image.html ? but rolling is not working.
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Yeah we need to get better canonical links for messages.
| * **Consistency:** Client-side processing is always performed in an image callback, regardless of what type of camera is used. | ||
| * **Visibility:** Topics can be monitored in [image_view](https://index.ros.org/p/image_view/) or [rviz](https://index.ros.org/p/rviz/). | ||
| * **Reproducibility:** Topics can be [bagged](https://index.ros.org/p/rosbag/) and played back later. | ||
| * **Compression:** Can take advantage of [image_transport](https://index.ros.org/p/image_transport/) to compress images, if desired. |
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I'd like to work to get the canonical link for packages to be the index page which is much better cross linked. It has a link directly to the API docs for each different version. We do need to get more README's ported. I'm doing this as a test of migrating content from the wiki . If we migrated to it's wiki page ( https://wiki.ros.org/image_transport) to it's README.md the link here would be much more useful. But as we're looking to wind down the wiki, we are considering a more bulk process and I'd like to do the linking with that in mind.
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| ```bash | ||
| # Poll "my_camera" at 5 Hz, publishing in namespace my_polled_output/. | ||
| $ poller 5 camera:=my_camera output:=my_polled_output |
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is this correct ?
ros2 run polled_camera poller 5 camera:=my_camera output:=my_polled_outputThere was a problem hiding this comment.
I don't have a clue, I'm just porting the documentation as it exists trying to apply some basic heuristics.
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friendly ping @tfoote |
Co-authored-by: Alejandro Hernández Cordero <[email protected]>
Pulling from: https://wiki.ros.org/polled_camera#preview