Cam Salzberger

MathWorks

342 total contributions since 2015

I am a Software Engineer at MathWorks, and a Mechanical Engineer by education. I specialize in Robotics.

In my free time, I enjoy hiking and parkour.

Cam Salzberger's Badges

Answered
Working with Ouster Lidar and pointcloud2
Hello Julien, I haven't tried the Ouster data, but there are two options when reading messages from rosbag: you can read them i...

6 días ago | 0

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Answered
ROS Action Client in Simulink
I am afraid that it is currently not possible (as of R2019b), but I have passed along your suggestion to the relevant people. Th...

10 días ago | 0

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matlab and simulink can not receive custom message whice send by ros
Please see some strategies for resolving and troubleshooting this issue in my answer here. You shouldn't need to set ROS_IP on t...

10 días ago | 0

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Failed to create custom ROS2 message
ROS 2 has more strict rules about package, message, and field names than ROS did. Relevant here, fieldnames need to be all lower...

10 días ago | 0

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How can I select a specific variable in the .mat file which contains different variables in the user interface?
Hello Kunpeng, You may consider using whos to determine the variables available in a MAT file. Then you can specify the variabl...

10 días ago | 0

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Plotting a 2d graph from .txt file (imported into MATLAB as table)
plot(data.t, data.x) A similar question was posted here, and points to this documentation for more information. You could even...

alrededor de 1 mes ago | 0

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Answered
Any way to assign the second output to a variable on a function?
Hello Brandon, You can opt to ignore the first output using a tilde: [~, var2] = name(in1, in2); Is that what you were lookin...

alrededor de 1 mes ago | 1

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Time Complexity of 2D array
Hello Yugal, What size are vcp and vcn before you start the loop? If you are doing something like this: vcp = []; vcn = []; ...

alrededor de 1 mes ago | 0

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calling of functions and subfunctions
Hey Geoffrey, Which version of MATLAB are you using? If you remove the main "function" declaration, it will consider the file t...

alrededor de 1 mes ago | 0

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Answered
MATHLAB R2019B rosinit "ROS Executor Thread" error
Hello Doruk, std_msgs/Uint32 is a built-in supported message type, but this error looks like what can occur if you attempt to u...

alrededor de 1 mes ago | 0

Answered
Undefined function or variable 'createRigidBodyTree'.
Hello Tasneem, "createRigidBodyTree" is not a function that ships with RST, or any MATLAB toolbox as far as I can tell. It appe...

alrededor de 2 meses ago | 0

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How to put data into a ROS mssage with Array Buses
Hello Xiaobo, I believe that the recommended workflow (or at least the easiest) is to simply use a MATLAB Function block to do ...

alrededor de 2 meses ago | 0

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"Manage Array Size for ROS Messages" gone missing, after updating to Matlab R2019b.
Hello Ken, The Simulink Toolstrip in R2019b has changed the location of a few things, but the variable size array configuration...

2 meses ago | 0

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Answered
convert from hdf5 format to matlab
Hey Khaled, Have you tried h5read? This page should show an example of how to read the data. -Cam

3 meses ago | 0

Answered
Error "Unable to resolve name" issue
Hello Paul, Please make sure that the parent folder to the "+mSIPRO" directory is on the MATLAB search path. Once you update th...

3 meses ago | 2

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Answered
how use MATLAB to data generation
Hello Dodo, Yes, if you are looking to evaluate the sine function at particular points, then export that data to an Excel sprea...

3 meses ago | 0

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About team members in competition
Hello Sadashiv, MATLAB Answers is generally more about getting help with MATLAB code or usage from the community. To get help w...

3 meses ago | 0

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Inverse Kinematic Solver solutions
Hello Kyle, The inverse kinematics solver parameter AllowRandomRestarts is likely the culprit here. If you check the documentat...

3 meses ago | 2

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Problems with ExampleHelperGazeboSpawnedModel ROS Kinetic on R2018b
What version of Gazebo are you using? The example helpers were designed for the purpose of working with the ROS Hydro VM and its...

4 meses ago | 0

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How to lock an area
If I'm translating this correctly, you want to bulk-comment something. You can highlight it all and comment each line at once wi...

4 meses ago | 0

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External ROS node can't communicate with simulink
Hey Mark, I usually see this kind of issue going the other way (external nodes unable to send data to MATLAB/Simulink), but it'...

4 meses ago | 0

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rosservice call not implemented
Hello Luca, The rosservice function is designed to give introspection information from the network about available services. Fo...

4 meses ago | 0

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Error in ROS Custom Message
Hey Shlok, I believe that the Simulink message type selection drop-down should use the same functionality as rosmsg("list"). I'...

5 meses ago | 0

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How can I change my ROS custom message after it's generated.
Hello Jaehyeon, The ROS custom messages supported by MATLAB are designed to be overwritten. So if you have gone through all of ...

5 meses ago | 0

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Visualizing Robot using URDF format
Hello Prasanna, I can't claim to have experience with it, but I believe that you can use smimport to get the URDF into Simscape...

5 meses ago | 0

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How to get arrays of buses from message in ros subcribe in simulink and transfer to matlab function
Hello, You may need to manage your array sizes in Simulink ROS to allow the full number of points to be extracted from the arra...

6 meses ago | 0

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MATLAB unable to receive messages of a custom ROS message type
Hey Harvard, Now that things have been narrowed down, hopefully I can offer some potential solutions. One of the biggest causes...

6 meses ago | 0

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Fail to create ROS Publisher and ROS subscriber
Hello Ignacio, The message type "geometry_msgs/Twist" is one of the standard, built-in ROS message types. However, the message ...

6 meses ago | 0

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Answered
Can Matlab search through the current directory to find and import a file?
Hey Noah, You can use the dir function to get information on the contents of a folder. You can use wildcards (* or **) to match...

6 meses ago | 0

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Answered
How to change PointCloud2 Piont Data type？
The data type in the sensor_msgs/PointCloud2 ROS message type is hard-locked by the message definition. Note, however, that the ...

6 meses ago | 0