Sebastian Castro

MathWorks

Aktiv seit 2012

Robotics and AI educator at MathWorks. Co-host of the MATLAB and Simulink Robotics Arena.

Professional Interests: Education, Robotics, Simulation, Controls, Algorithms, Physical Modeling, Model-Based Design, Computer Vision, Machine Learning, Software Engineering

Non-professional Interests: Running, beer, wine, and heavy metal \m/

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Beantwortet
How do I make an autonomous line following program and also have driver control
Have you seen this new video of ours? https://www.mathworks.com/videos/switching-between-driver-and-autonomous-control-of-vex-r...

mehr als 4 Jahre vor | 0

Beantwortet
Hor to make a URDF file?
URDF is a file format used externally to MATLAB. It just happens that MATLAB has a URDF importer. Here are the official tutoria...

mehr als 4 Jahre vor | 0

Beantwortet
Simulink 3D Animation vs. Mechanics Explorer
Simulink 3D Animation requires you to simulate the robot dynamics separately, and then whatever positions you get from your simu...

mehr als 4 Jahre vor | 1

| akzeptiert

Beantwortet
Robotsimulator is undefined function
That was from a demo, and not a shipping product feature. The closest thing I can think of in the latest version is the basic M...

mehr als 4 Jahre vor | 0

| akzeptiert

Beantwortet
I have no 'Build Model' button on my Simulink model Toolbar.
Do you have MATLAB Coder and Simulink Coder in your license? If you type in >> ver in MATLAB, do those toolboxes show up? - ...

mehr als 4 Jahre vor | 0

Beantwortet
Error using RoboticsPlayground app while running a sample simulation
Do you have a Simscape Multibody license? If you type in >> ver in MATLAB, does that toolbox show up? - Sebastian

mehr als 4 Jahre vor | 0

Beantwortet
frames not appearing using robotics system toolbox
Maybe the frames have a default size that is much smaller than the robot. If you divide the distance values of the DH parameters...

mehr als 4 Jahre vor | 1

| akzeptiert

Beantwortet
Mobile Robotics Simulation Toolbox: Map Issues
The toolbox will accept any binaryOccupancyMap or occupancyMap variable as the map (or robotics.BinaryOccupancyGrid and robotics...

mehr als 4 Jahre vor | 0

Gesendet

Using MATLAB with Python
Files demonstrating MATLAB and Python interoperability

mehr als 4 Jahre vor | 23 Downloads |

Beantwortet
Issue: Create ROS master on Matlab
Two things. First, if all you want to do is create a ROS master on the localhost, all you need is the following rosinit Secon...

mehr als 4 Jahre vor | 0

Beantwortet
Is it possible to use PRM and sequentially findpath function in Simulink?
It's doable in the sense that you can put the code in a MATLAB Function block (or as a MATLAB Function in Stateflow). It has its...

mehr als 4 Jahre vor | 0

| akzeptiert

Beantwortet
Simulation Map Generator issues
The error you linked is a common one that happens when you input a grayscale (M x N) image instead of a color (M x N x 3) image....

mehr als 4 Jahre vor | 1

| akzeptiert

Beantwortet
Trajectory plotting of manipulator path in Simscape
Hi Gautami, Simscape Multibody has a "Spline" block that lets you display a curve if you pass in the XYZ points. You have to di...

mehr als 4 Jahre vor | 1

Beantwortet
Empty thermal liquid tank
Have you looked into Simscape Fluids? They have a built in Thermal Liquid tank block you can parameterize based on specs like th...

fast 5 Jahre vor | 0

Beantwortet
Feeding knees angle to the walking robot
Thanks for tagging this post with roboticsarena so we got that notification! Much appreciated. In Simscape Multibody, you can c...

fast 5 Jahre vor | 2

| akzeptiert

Beantwortet
ROS Publish Msg - DJI ROS OSDK
Instead of using a Bus Creator block, use a Blank Message block with the right message type (sensor_msgs/joy), and then use a Bu...

fast 5 Jahre vor | 0

Beantwortet
No visualisation shown in mechanics explorer
You might want to check that the folder containing the mesh files (the .STL or .STEP) files is on your MATLAB path. Else, the si...

fast 5 Jahre vor | 1

Beantwortet
In PRM algorithm how much the Minimum number of nodes needs to find the path
You don't! Probabilistic planning approaches have no guarantees, so you just have to pick something that succeeds most of the ti...

fast 5 Jahre vor | 0

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Beantwortet
What is the best desktop configuration/parts to run Matlab?
MathWorks has a system requirements page you can look at! https://www.mathworks.com/support/requirements/matlab-system-requirem...

fast 5 Jahre vor | 1

| akzeptiert

Beantwortet
Perform Safe Trajectory Tracking Control on Baxter robot
I'd suggest starting by computing the inverse kinematics/dynamics for each arm independently and seeing if you can place both ma...

fast 5 Jahre vor | 0

| akzeptiert

Gelöst

Pose from bearing angles in 2D
A robot moving on the plane has a sensor that measures the bearing angle to two mapped landmarks, that is, the world frame coord...

etwa 5 Jahre vor

Gelöst

Twists in 2D
So far we have represented the pose of an object in the plane using a homogeneous transformation, a 3x3 matrix belonging to the ...

etwa 5 Jahre vor

Gelöst

Pose interpolation in 2D
Consider two poses represented by homogeneous transformation matrices: |T1| and |T2|. Write an algorithm to interpolate between...

etwa 5 Jahre vor

Gelöst

Composing relative poses in 2D: problem 2
We consider a world reference frame denoted by {0} which has its x-axis pointing east and its y-axis pointing north. There i...

etwa 5 Jahre vor

Gelöst

Composing relative poses in 2D: problem 1
We consider a world reference frame denoted by {0} which has its x-axis pointing east and its y-axis pointing north. There i...

etwa 5 Jahre vor

Gelöst

Relative points in 2D: problem 3
The 2D pose of a robot, with respect to a world coordinate frame {O}, is described by a 3x3 homogenous transform matrix T. A la...

etwa 5 Jahre vor

Gelöst

Relative points in 2D: problem 2
The 2D pose of a robot, with respect to a world coordinate frame {O}, is described by a 3x3 homogenous transform matrix T. A la...

etwa 5 Jahre vor

Gelöst

Relative points in 2D: problem 1
The 2D pose of a robot, with respect to a world coordinate frame {O}, is described by a 3x3 homogenous transform matrix T. A lan...

etwa 5 Jahre vor

Gelöst

Relative pose in 2D: problem 2
We consider a world reference frame denoted by {0} which has its x-axis pointing east and its y-axis pointing north. There is a...

etwa 5 Jahre vor

Gelöst

Relative pose in 2D: problem 1
We consider a world reference frame denoted by {0} which has its x-axis pointing east and its y-axis pointing north. There is a...

etwa 5 Jahre vor

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