MATLAB ros 3D visualizing in real time
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I am trying to visualize a ros pointcloud2 data stream, like one can do in RViz. I can't find a matlab guide on how to do this. My data comes from a SICK MRS6000. I have all the toolboxes for ROS and autonomous driving. Any help is apriciated
Cam Salzberger on 12 Mar 2021
You can create a ROS subscriber for the PointCloud2 topic, and in the callback have it update a scatter3 plot showing the point cloud.
Alternatively, create a pcplayer. Then you can extract the points using readXYZ (and optionally readRGB) and use that to construct a pointCloud object, and provide that to the pcplayer view method to display it.
If you have R2021a, you can create the subscriber using "DataFormat","struct", and make use of "rosPlot" for the scatter3 workflow, or "rosReadXYZ" (and "rosReadRGB") for the pcplayer workflow. Using struct format will make the data manipulation faster.