已回答
Generating ROS Custom Action Service Messages in R2021a
Hello Wesley, In R2020a and before, custom actions were not officially supported for ROS Toolbox. It's noted in the documentati...

4 years 前 | 0

| 已接受

已回答
MATLAB ros 3D visualizing in real time
Hello Eirik, You can create a ROS subscriber for the PointCloud2 topic, and in the callback have it update a scatter3 plot show...

4 years 前 | 0

已回答
Receive data from ros2 /scan topic does not work, while it is possible for /odom and /cmd_vel topic
Hello Bernd, There are two main culprits that I always look at first when there is difficulty communicating in ROS 2, but there...

4 years 前 | 0

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已回答
Generate custom ROS messages in Matlab running on Windows using Cmake from Ubuntu install on WSL2
Hello Eric, You will need CMake installed on your Windows system, along with Visual Studio 2017 and Python 2.7. It's unlikely t...

4 years 前 | 1

| 已接受

已回答
MATLAB freezes the OS when using java environments: a Fatal Java Exception occurs (Resource temporarily unavailable)
I assume that you are using SSH with X11 forwarding to work with MATLAB on a remote machine? I would recommend against doing tha...

4 years 前 | 0

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Would I able to load a Gazebo world as a training model into rlSimulinkEnv function ?
Hello Jen-Yu, Loading a Simulink model that simulates a robot is very different than loading a Gazebo world. There is currently...

4 years 前 | 0

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how to generate the custom message
This is the same issue as here. Please see that question and this one for more folder structure details. -Cam

4 years 前 | 0

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已回答
Error ros.ro2.internal.createOrGetLocalpython
Hello Nikhil, There are two issues happening here. The first is that there is something stopping some of your root Python libra...

4 years 前 | 0

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已回答
Fail to create custom message rosgenmsg in Matlab 2020b
Hello Van, You are providing the "package directory" to rosgenmsg, when it is looking for the "interfaces directory". This is b...

4 years 前 | 0

已回答
Error when running rosgenmsg for control_msgs
Hello Bassem, Based on the error, it seems that the ROS custom message support package did not install properly. I would recomm...

4 years 前 | 0

已回答
Return all values of a struct parameter within a cell array.
Hello Gregory, Matt J's way works, by creating multiple struct arrays, working your way down the nested fields. It's functional...

4 years 前 | 0

已回答
Could not load library (Poco exception = libMatlabDataArray.so: cannot open shared object file: No such file or directory)
Hello Andreas, This may be because you have conflicting libraries on your platform's library path. It may be related to this bu...

4 years 前 | 0

已回答
An issue with subscribing to custom messages from ROS network
Hello Nima, Issues with ROS communication between machines, especially if messages can be received from one machine but not the...

4 years 前 | 1

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已回答
Simulink fails to create ROS subscriber
Hello Johan, This may be because you have conflicting libraries on your platform's library path. It may be related to this bug,...

4 years 前 | 1

已回答
Speedgoat machine and ROS
Hello Jihyik, For the standard question of "Can I deploy a Simulink ROS node to _____ hardware?" the answer is usually the same...

4 years 前 | 1

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已回答
rosactionclient failure due to version mismatch
I realize this question is from a while ago, but I wanted to put in an answer to catch anyone else running into the same problem...

4 years 前 | 0

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已回答
downloadPretrainedPointPillarsNet help
Hello Gustavo, I believe that command isn't a standard function in MATLAB, it's a helper provided with the example. You'll need...

4 years 前 | 0

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已回答
Unrecognized function or variable 'asbQuadcopterStart'.
Aerospace Toolbox and Aerospace Blockset are two different products. That example is in Aerospace Blockset, which does not appea...

4 years 前 | 1

已回答
rosgenmsg error in line333 MATLAB2020b
Hello Holden, You are providing the "package" folder to rosgenmsg, when instead it requires the parent folder of that. This is ...

4 years 前 | 0

已回答
Can lost time when using 'waitfor(rate)' function be used for other tasks?
Hello Mohan, Generally the way to use rosrate is to put it at the end of a "control loop" - code that you execute every iterati...

4 years 前 | 0

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已回答
Robotic Arm Trajectory Animation Using Robotic Toolbox
Hello Ahmetcan, The configuration solution output of calling the inverseKinematics object defaults to being a struct. If you wa...

4 years 前 | 0

已回答
[Robotics Playground Toolbox Add-on] Error Message When Using Distance Sensor Block
Hello Benjamin, robotics.OccupancyGrid is the old name for the occupancyMap object. It is a valid alias, so if you try to use r...

4 years 前 | 1

已回答
Why does the ROS MATLAB connection via topic receive command (ROS-Toolbox) not work in R2020a but in R2020b
Hello Oliver, The most common reason for being able to see rostopic, but not being able to receive messages from one or other o...

4 years 前 | 1

已回答
Populating ros messages is slow
Hello Mauro, Cause of Performance Issues Accessing Nested Messages (pre-R2020b) Based on your other question, I assume you ar...

4 years 前 | 2

| 已接受

已回答
Importing ROS bag file of LIDAR scan into Matlab as point cloud structure
So you have the XYZ points from the PointCloud2 message after you use readXYZ, and you want to get it in the format of the point...

4 years 前 | 0

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已回答
Matlab Ros Gazebo Add force to Ball
Hello Philipp, There is an issue with the specific service definition that is used in that call command. We are working on a re...

4 years 前 | 0

已回答
MATLAB2020b/ROS interface - Unrecognized function or variable 'pythonPkgSrc'
Hello all, Here is the bug report published for this issue. This issue is fixed in R2020b Update 2, so installing that or later...

4 years 前 | 1

已回答
Error when trying to view a variable
Hey David, I have a suspicion that there is either a variable in your workspace, or a function/script in your current folder/pa...

4 years 前 | 0

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已回答
Moving object in a defined environment
That's not so much a question about "getting started" as it is about "doing a large project for me". Try breaking down the probl...

4 years 前 | 0

已回答
ROS toolbox (ROS2 bag)
Hello Jesús, It is not possible to read data out of ROS 2 bag databases using R2020b. There is a lot of focus on ROS 2 now thou...

4 years 前 | 1

| 已接受