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hello.
we are trying to use OS1 3d lidar in our project but we couldnt understand the datas which we can see on terminal.
we want to understand which number is x, y,z and color?
Here is an output when we listened /os1_cloud_node/points topic:
0, 0, 0, 0, 0, 0, 157, 42, 233, 192, 36, 50, 162, 55, 82, 69, 167,191, 0, 0, 0,0, 0, 0, 0, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, .....
you can use rostopic type os1_cloud_node/points ros command to querry the topic type.then rosmsg show LIDAR_TYPE_YOUR_SEND.it is tell you the data meanning.
Asked: 2020-05-21 13:39:57 -0500
Seen: 306 times
Last updated: May 23 '20
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I'm sorry to have to do this for something so seemingly unimportant, but please don't post screenshots of terminal text in question on ROS Answers. It's all text, so there is no need. Just copy-paste the text from the terminal into your question text. Do make sure to format it properly by selecting the text and pressing
ctrl+k(or clicking the Preformatted Text button (the one with101010on it)).You don't need to post a new question, just edit your curent one. You can use the
editbutton/link for this.After you replace the screenshot with the error message itself, we can re-open your question.
@gvdhoorn can yoı re-open my question please?
We can see that the topic for /os1_cloud_node/points uses a message of type sensor_msgs/PointCloud2, which also contains a msg of type sensor_msgs/PointField. After looking at the definitions, it seems like we would need more information about the code you are using. Could you provide a link to the ROS package(s) you are using to get the LIDAR data into ROS ?