ROS message sizes in Simulink - AD-EYE/AD-EYE_Core GitHub Wiki
The issue
Simulink (more precisely the Robotic systems toolbox) requires to know the size of the messages it sends to ROS.
The simple fix
The simple fix to setting the message size is through Tool, Robot Operating System and Manage Array size.
This allows to set the size for a certain attribute of a specific message message.
The issue is that the size might not always for different occurrences of the same message type. An example is the frame_id field: "/base_link" and "/camera1" do not have the same length.
The elaborate fix
The solution to having different sizes for the same message field can be seen on the following picture (note that only the frameId was kept to make the illustration clearer).
