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Cam Salzberger


Last seen: Today

MathWorks

393 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.

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Contributions in
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Answered
Why RRT planner doesn't reach the goal state?
Hello Kseniya, The plannerRRTStar class has a GoalReachedFcn that checks if the state of one of the RRT nodes is sufficiently c...

environ 6 heures ago | 0

Answered
Having trouble building custom ROS msgs in MATLAB 2020a
Hello Jiyo, Seeing each of the geometry_msgs show up twice is rosmsg list is indicative of an issue, not the building of it wor...

13 jours ago | 0

Answered
simulink read ROS Service Request
Hello Markus, To contact the Technical Support team directly, please file a service request. MATLAB Answers is designed to be a...

14 jours ago | 0

Answered
How can I prevent the clicked figure taking the focus?
Hello Mahmut, Rather than worrying about which figure is in focus (the current figure), it would be better practice to target y...

24 jours ago | 0

Answered
How can I re-save variable with only certain index values?
HD_mutualInfoTotal = mutualInfoTotal([1:4, 6, 8:10, 12, 15:18, 20:22]); There are a lot of ways to do indexing in MATLAB, and t...

environ un mois ago | 0

| accepted

Answered
robot toolbox rigidBodyTree function
Matthew, One thing to check is which version of MATLAB you have. rigidBodyTree was introduced in R2016b. Another is to make su...

environ un mois ago | 0

Answered
I can't move the turtlebot3 with matlab and ros
Hello Ambroise, There are a couple of things I noticed right off the bat that could be causing things to be weird: export ROS_...

environ un mois ago | 0

Answered
how to use the custom ros message from ros in simulink
Hello Fei, If you have already used the custom messages with publishers and subscribers within MATLAB, then you should be able ...

environ un mois ago | 0

Answered
Simulink with ROS : For loop for array of sensor_msgs/Image
Hey Hassan, I'm not sure how to do it inside standard Simulink blocks, but a workaround may be to pass the Image message array ...

environ 2 mois ago | 0

Answered
how can I solve "rosinit" command error for MATLAB-ROS connection
Hello Sinan, This is a very uncommon symptom that I've seen only a couple of times. There are a few things that could be causin...

environ 2 mois ago | 0

| accepted

Answered
Importing Robot Model in MATLAB
Hello Riddhiman, The importrobot function is looking for the input argument to be either a URDF file or the URDF-formatted text...

environ 2 mois ago | 0

| accepted

Answered
Error using ros.BagSelection/deserializeMessages
This looks like the same issue that is mentioned in this bug report. Try reading the messages out of the rosbag using: msgs = r...

2 mois ago | 0

| accepted

Answered
How to produce a number of random coordinates within a square grid ensuring that the distance between points is no more than a specified value?
There are three ways that I can think of to address this, and all are iterative: Generate N random points, remove any that aren...

2 mois ago | 1

Answered
pcode() as standalone executable
Daniel, I do not believe that is possible. MATLAB Compiler does not support "pcode", and the function does not support code gen...

2 mois ago | 0

Answered
How to save the enhanced fingerprint images
If you have the image as a matrix, use imwrite. If you have "enhanced" the image by using figure tools (axes, plotting, etc.), u...

2 mois ago | 0

| accepted

Answered
ROS Toolbox - Can't access a ROS Message Array
Hello Jeff, I know this is pretty old, but I wanted to get visibility on the reason for this error. I've just answered a simila...

2 mois ago | 0

Answered
Plotting Covariance from poseWithCovarianceStamped message
Hello Lasse, I know this is a bit late to be responding to this, but maybe someone will still benefit. I believe the issue is t...

2 mois ago | 0

Answered
Receive message from ROS to Matlab robotics toolbox
Hello Jeannot, The most common cause I've seen for two systems being nominally connected (able to use rostopic and other intros...

2 mois ago | 0

| accepted

Answered
Matlab error on Ros custom message
Hello Torgeir, I believe that you simply have a typo or two that is preventing the custom message generator from finding the re...

3 mois ago | 0

| accepted

Answered
Matlab/Simulink - Gazebo -Co-Simulation - rosbag
Hello Matthias, One suggestion is to use the Read Data block from ROS Toolbox in your Simulink model. This is designed to outpu...

3 mois ago | 0

Answered
ROS Custom Message cannot use readXYZ
Francis, Currently "readXYZ" is a method only on the PointCloud2 message class. The way that it converts the data from the Poin...

3 mois ago | 0

| accepted

Answered
How to parse an octree_msg
Hello Francesco, If you would like to write your own Octomap data interpreter, you would probably need to rewrite a fair bit of...

3 mois ago | 0

Answered
How can I create a custom ROS action server in MATLAB?
Currently, ROS Action Servers are not available in MATLAB, only ROS Action Clients. If you would like to create your own action ...

3 mois ago | 1

| accepted

Answered
Undefined function 'readImage' for input arguments of type 'double'. in PickandPlaceWorkflowInGazeboUsingROSExample.mlx
Hello Viet, Techncially, "readImage" is a method for an object of class ros.msg.sensor_msgs.Image (and CompressedImage). There ...

3 mois ago | 0

| accepted

Answered
rosgenmsg(folderpath) from custom ros msgs add on causes Index exceeds the number of array elements (0).
Daniel, This kind of error message generally comes up (in any MATLAB product) when you are trying to call a function but have s...

3 mois ago | 0

| accepted

Answered
matlab error on Ros custom message
Hello Matteo, I believe the issue here has to do with reason number 2 listed. Your package.xml file looks like it uses a mix of...

3 mois ago | 1

| accepted

Answered
How does Robotics Toolbox connect to ROS?
Clayton, In previous releases of MATLAB, there was only the Robotics System Toolbox, which had some ROS and navigation applicat...

4 mois ago | 0

Answered
Plotting every 2 columns as X,Y in a matrix
Hey Eric, This is pretty simple. The key to making it even simpler is this line in the plot documentation: "If X and Y are bot...

4 mois ago | 0

| accepted

Answered
How to access all elements within a structured cell array without looping?
Hello Steve, I would suggest restructuring your data storage. If you did use the struct array method of storage, I believe it w...

4 mois ago | 0

| accepted

Answered
ROS Master is running. Can't run 'rosinit'
Hey Michael, It sounds like there is already a ROS Master running on your machine on the port 11311, but (probably) not having ...

5 mois ago | 0

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