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Josh Chen

Last seen: 2 days 前 |  自 2020 起处于活动状态

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  • Knowledgeable Level 4
  • 6 Month Streak
  • Revival Level 2
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已回答
Getting ros2 time to stamp the PoseStamped message
Hi Samantha, We introduced ros2time since R2022b. If you are looking for a ROS 2 equivalent for getting timestamp and you are...

20 days 前 | 0

已回答
Error in ros2genmsg (line 467) buildPackage(builder, [], ' --merge-install', colconMakeArgs);
Hi Quan, As the build log message mentioned, the culprit is that the package name of your custom message is "action_msgs", whic...

2 months 前 | 0

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已回答
Simulink codegen(with ROS2 Node) output error
Hi Rahul, It is hard to tell what's going on based on the description. When this happens, were you able to launch the generated...

2 months 前 | 0

已回答
Read raw Bayer matrix from ROS2 image message
Hi Avishay, I am assuming you have the Image Processing Toolbox installed on your machine. By default, if you have Image Proces...

4 months 前 | 0

已回答
ROS tool box's cantransform() and gettransform() still trigger on a stale tf.
Hi Mattew, It sounds like this might be related to the 'BufferTime'. By default, the buffer time for buffering transformations ...

4 months 前 | 0

已回答
unable to connect 2 turtlebot3-burger with Simulink using ros subscribe block
Hi Hemant, Do you need to control those two turtlebots with different ROS_MASTER_URI with one single Simulink model? If yes, co...

5 months 前 | 0

| 已接受

已回答
Problem with installing ROS on Matlab
Hi Jonas, It seems there is a redefined variable in niryo_robot_status/msg/RobotStauts.msg - REBOOT_MOTOR has been defined twic...

5 months 前 | 0

| 已接受

已回答
"Error while processing" while using codegen in Matlab 2023a
Hi John, Thanks for reporting this issue. It would be nice if you could share a script and reproduction step so we can reproduc...

6 months 前 | 0

已回答
How to add cv_bridge support in code generation ?
Hi Nicolas, Since you mentioned that both packages seem to be already installed. I assume you are trying to build and run the m...

6 months 前 | 0

已回答
Error in rosReadBinaryOccupancyGrid
Hi SEUNGSHIN, Thanks for bringing this use case to our attention. As for now, there is no Simulink block for reading binary o...

7 months 前 | 0

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已回答
ros2genmsg folder path validation error line 197
Hi CB, Which location are you trying to generate these messages to? It seems somewhere under "C:/Program Files/..."? Would it w...

7 months 前 | 0

已回答
How do I reconstruct a TF tree from a rosbag?
Hello David, Yes! You may consider to use the getTransform function in BagSelection Object or rosbagreader Object to get the tr...

8 months 前 | 0

已回答
Sending/Recieving ROS transformation /tf using Simulink
Hi Jürgen, In 2015b, you should be able to subscribe to the /tf topic directly with the ROS Subscribe block, and connect the ou...

8 months 前 | 0

已回答
How do I properly generate code to set the topic name for a ROS 2 publisher using the value of the getParameter(...) function?
Hi Sam, Unfortunately, the topicName input for ros2publisher has to be a constant. Since parameter value is not constant, you c...

9 months 前 | 0

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已回答
matlab custom ROS message C++ compiler not supported
Hi Joshua, This is likely related to missing component when installing visual studio 2019. In this post and this post, there ar...

11 months 前 | 0

已回答
ROS2 distribution support: Humble
Hi Andinet, Thanks for reaching out! Yes, we are actively working on switching to Humble. For the latest updates to ROS Toolb...

11 months 前 | 1

已回答
implementin NMPC in ROS using code generation
Hi Mikael, Thanks for sharing this additional information. I think using "goal variable" is a smart idea for generating the ROS...

12 months 前 | 0

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已回答
The library method 'vision.internal.buildable.ComputeMetricBuildable.updateBuildInfo' failed
Hello Andinet, As the error message suggested, please use >> mex -setup to set up the compiler so that MATLAB can find the ...

12 months 前 | 0

已回答
how can I make the simulink model to save some array data or ROS2 bag log in SD card in jetson nano
Hi Chulhoon, What is the data type of your results? One idea is to use Publish blocks to publish the result back to ROS 2 net...

1 year 前 | 0

已回答
ROS2 with simulink
Hello Rahul, In order for Simulink to subscribe to the topic and receive custom messages, you need to provide message definitio...

1 year 前 | 0

已回答
Why can't I publish ROS messages using simulink？
Hello Liam, When this kind of "only one way communication available" happens, it usually has something to do with the setting o...

1 year 前 | 0

已回答
Unstable communication of turtlesim in ROS2 in Simulink
Hello 健, Custom messages are supported in Simulink as well. If I understand your question correctly, you are trying to subscri...

1 year 前 | 0

已回答
Rosinit error: Undefined function or variable 'rosinit'
Hi Alireza, This error indicates that MATLAB is not able to find the function 'rosinit'. Likely, some path got messed up. You c...

1 year 前 | 0

已回答
ROS compilation fails because 'slros_initialize.h' is missing.
Hello Markus, As Tobias suggested, please change the hardware board seeting to 'Robot Operating System (ROS)'. This is required...

1 year 前 | 0

已回答
how to convert .bag file into .pcd in matlab (Lidar Data) ?
Hi Dayananda, To achieve this with MATLAB, you would need both ROS Toolbox license and Computer Vision Toolbox license. You can...

1 year 前 | 0

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已回答
ROS2 subscribe IsNew output remains true even if no new messages are received
Hello Callum, This is a known issue in 2021b and earlier version of MATLAB. Please update your MATLAB to at least 2021b Updat...

1 year 前 | 0

| 已接受

已回答
Matlab fails to see nodes in Gazebo VM
Hi Oren, Can you provide more information about the VM you are using here? Are you using the VM from MathWorks? If yes, which ...

1 year 前 | 1

| 已接受

已回答
Automated Parking Valet with ROS 2 in Simulink example errors out during model update
Recent change in GNU turned "--as-needed" for ld as default, which causes this issue. To address this, open the model "ROS2Vale...

1 year 前 | 0

| 已接受

提问


Automated Parking Valet with ROS 2 in Simulink example errors out during model update
I open the model from Automated Parking Valet with ROS 2 in Simulink example and use "Ctrl+D" to update it. However, I got the f...

1 year 前 | 1 个回答 | 0

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个回答

已回答
How to input bus data (values) into my simulink model?
Hey Timo, If you have that bus/struct saved in Data dictionary, you should be able to bring it to MATLAB with "Simulink.data.di...

1 year 前 | 1

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