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Josh Chen

MathWorks

Last seen: 4 days ago Active since 2020

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Answered
Convert Struct to Pointcloud using ROS2
Hello Manuel, The function pointCloud takes 3-D coordinate points as input argument. However, the variable 'a' here in the scre...

1 month ago | 0

| accepted

Answered
Simulink/ROS Publishing pose of a 7 DOF arm using moveit_msgs/MoveGroupActionGoal
Hello Hasan, In Simulink, each string is represented as an array of uint8 values. As so, when assigning string fields in a mess...

3 months ago | 0

Answered
Generate custom ROS messages in Matlab R2021a running on MacOS 11.4 with CMake 3.20.5. Error: Could not find CMake in your system
Hello Sriharsha, This seems to be an issue with MATLAB custom LD_LIBRARY_PATH. To confirm this, could you please try running th...

4 months ago | 1

| accepted

Answered
Publishing on a ROS Topic Simulink
Hello Hassan, In Simulink when creating a bus, it requires more information than MATLAB to lock down the message you want to se...

6 months ago | 3

Answered
Fail to create a ROS publisher/ subcriber for individual project
Hi Van, Based on your reply, it did seem that you are missing custom message definition in MATLAB. So MATLAB has a set of prede...

8 months ago | 1

| accepted

Answered
how to run rosinit in Matlab
Hello Van, Based on the error message, it looks like MATLAB cannot find an available python executable on your computer. rosini...

9 months ago | 1

Answered
How to use String array in a custom Message in Simulink?
Hello David, It seems that the the message you are assigning here is of type "std_msgs/String", have you tried to change the ma...

9 months ago | 0

Answered
Setup of an /trajectory_msgs/JointTrajectory message in Simulink
Hello Martin, The message trajectory_msgs/JointTrajectory contains variable-length arrays such as the 'Points' here shown on th...

11 months ago | 0

| accepted

Answered
Manage Ros Custom Message with Variable-Length array
Hi Marco, For WaypointArray.msg, are you referring to rsm_msgs/Waypoint? It's a bit difficult to see the full picture without ...

11 months ago | 0

Answered
How do I enter a string into a ROS message in Simulink?
Hello Harry, Since ROS strings in Simulink have to be fixed-length uint8 array, normally there are two ways of entering a strin...

12 months ago | 0

| accepted

Answered
How can I create standalone application while using Robotics System Toolbox's rosgenmsg function?
Hello Dandanakan, It is possible to use custom ROS messages in MATLAB Compiler with the following workaround. Since "rosgenmsg"...

12 months ago | 0

| accepted