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roboskel / roboskel_msgs

The home for roboskel's custom ROS messages. :house_with_garden:
BSD 3-Clause "New" or "Revised" License
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qustion for msgs element #2

Open mapin1 opened 2 years ago

mapin1 commented 2 years ago

what's the element "factor" "middle_z" "idfortracking" mean in this msgs, please!

gstavrinos commented 2 years ago

I assume you are referring to the PointCloud2_Segments message. We are using this message type for cluster tracking in pointclouds. middle_z is used as the mean of the pointcloud height (z-axis), factor is used to configure internal calculations (multiplication weight) and idfortracking is an id given by the tracking algorithm to differentiate between clusters.

Feel free to ask any additional question, or close this issue if you are satisfied with my answer! :)

mapin1 commented 2 years ago

thanks!,here two qustion: 1.what's the "factor" default value be setted, 2.this message type has "cluster_id" element mean to different cluster in this clusters of one frame, "idfortracking" is used to mark different clusters(not in the same frame)?

gstavrinos commented 2 years ago

We used a factor of 5.0 but could really be anything. And yes, idfortracking is used to mark a specific cluster along various messages/frames.

mapin1 commented 2 years ago

We used a factor of 5.0 but could really be anything. And yes, idfortracking is used to mark a specific cluster along various messages/frames.

thanks for your reply.