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Best way to shutdown ROS when used with MATLAB Compiler
Hello Andreas, Instead of an infinite loop, an alternative design pattern you could try is to run the publishing within a timer...

7年弱前 | 0

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ROS Subscribe Block - Signal Selector
Hey again, Ben, The issue is that the Markers_ field is, presumably, an array. For a MATLAB equivalent, it'd be like if you had...

7年弱前 | 0

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Why MATLAB can not start on Ubuntu 18.04?
Hello Ye, This answer provides a good starting point for troubleshooting these types of issues. Beyond that, contacting MathWor...

7年弱前 | 1

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Using Vicon Data from ROS and feed it to the Mambo Parrot Drone Flight Control System in Simulink
Hello Ben, If you have the Vicon pose estimate coming in over your ROS network, you can access it directly in Simulink through ...

7年弱前 | 0

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How can I use user defined type message in rossubscriber?
Hello Yun, For any non-standard (non-built-in) message types, you can make them available for use in MATLAB by using the Custom...

7年弱前 | 0

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Efficient way to connect based on n x 2 array
Hello Olli, Consider looking into various graph search algorithms, as that is exactly the field that explores "doing this effic...

7年弱前 | 0

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Convert Binary Occupancy Grid to logical or numeric values
Hello Mohammed, You can use the occupancyMatrix method to extract the numeric values of the occupancy grid. Then you can manipu...

7年弱前 | 1

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Not able to run multiple node scripts at once
Hello Matthias, I am a little confused about exactly what it is you are trying to do. In general, ROS nodes (and publishers and...

7年弱前 | 0

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Blank messages in multiple model reference instances
Hello Chris, As of R2018b, Simulink does not yet support the use of ROS blocks within reference models. If you need to operate ...

7年弱前 | 0

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hii, in ROS toolbox can I use single ROS Publish block to connect multiple ROS Subscribe blocks??
Yes, ROS works by publishing a message on a topic, and all subscribers to that topic will receive the message. So using one publ...

7年弱前 | 1

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Error using ExampleHelperGazeboCommunicator/startModelServices (line 334)
Hello Santiago, The md5 checksum having a different value is indicating that the ROS message does not match the expected messag...

7年弱前 | 0

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how to convert image(basically a floor plan ) into map or binary text file??
Hello Vivek, The robotics.OccupancyGrid class has an example that shows the conversion of a PGM image into an occupancy grid. J...

7年弱前 | 1

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How do read .npy files in matlab?
Hello Juan, I don't believe that either of those file formats are natively supported in MATLAB, but you can always check File E...

約7年前 | 1

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matrix in app designer ?
You can create a uitable, and provide the app handle as the first input argument to it. The matrix can be provided in the 'Data'...

約7年前 | 1

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Error while Reading a image inside a user defined function
Hello Prayag, MATLAB does not use curly braces { } to demark functions, loops, conditionals, or other code blocks. Instead, MAT...

約7年前 | 1

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Solve linear equation with added constant
Hello Gordon, Since C is unknown, and a scalar, you could simply consider it to be an extension of the unknowns of x. So instea...

約7年前 | 0

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Robotics toolbox Custom map compile error
Hello Divyanshu, Does your MAT file have a variable in it called "simpleMap"? Because that is what the code is looking for - a ...

約7年前 | 1

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How to save stats values from matchScans?
Hello Amrik, Yes, your code is close to what you are looking for, but you are replacing the value of Score every loop iteration...

約7年前 | 0

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How to rectify the frame rate drop that occurs while subscribing to the topic of camera image from ROS in Simulink ?
Hello Arun, There are two major potential sources for the delay that I can think of offhand. One is that using subscribers on t...

約7年前 | 0

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How can I load, read and save ros ".msg" file by Matlab?
Hello David, If you are simply looking to import the text from ROS message files, then possibly write it back out into a differ...

約7年前 | 2

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Robotics.particle filters does not work
Hey Matteo, Just looking at the code has a few things that call out to me. I'm not sure what the selectBox call is, but can you...

約7年前 | 0

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Subscribe the topic /robot/joint_states ,but i get l_gripper_l_finger_joint message.
Well, I was hoping to get your overall workflow so that I could suggest something that would fit in with it. However, the simpli...

約7年前 | 0

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Cannot connect to ROS master and connect my Baxter robot...
Hey John, Sorry, I just was answering your other question with general strategies, but it looks like you've at least tried some...

約7年前 | 1

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Can MATLAB control the real Baxter robot in real time? and can the VMware also control the real robot and how?
Hello John, If you are having difficulty connecting to a ROS Master, first always check that the ROS Master is running, and tha...

約7年前 | 0

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Generate ROS cpp code from m file
Hello Tuan, I'm afraid that C/C++ code generation for ROS-related functionality is not supported with MATLAB Coder. See this pa...

約7年前 | 0

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How can I set Longiture & Latitude of the map in this 3D model? ( I want [0 - 45 E] [30 - 80 N] ) ..not all the map...
Hello Yakov, Since you are using the standard graphics to display the map, you should be able to simply use axis, or xlim and y...

約7年前 | 0

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get(axes,'CurrentPoint') : stack on not-updated current point
Hello Yury, If you check out this answer, it answers your question. The documentation (R2018a link)backs it up as well. If you ...

7年以上前 | 0

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How can I call a function that has an input variable?
Hey Shaun, I am assuming you cannot control this function's code - you are writing a script to evaluate someone else's code o...

7年以上前 | 0

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Is there a coder-supported alternative to imsubtract?
Hello Blaine, |imsubtract| is a fairly simple function, though robust to deal with the different types of images it may be fe...

7年以上前 | 1

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Creating a new matrix with rows from a past matrix.
Hello Oscar, |find| is a fine and dandy function, but actually needs to be used far less often than many people think. The re...

7年以上前 | 0