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Yiping Liu


Last seen: 3 days ago

MathWorks

15 total contributions since 2019

Yiping Liu's Badges

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  • Knowledgeable Level 2
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Answered
How to obtain end effector orientation angles respect to the global reference/fixed reference axes X0, Y0 and Z0?
In general, the intrinsic rotations Z−Y′−X'' by angles γ, β, α are equivalent to the extrinsic rotations X−Y−Z by angles α, β,...

23 days ago | 0

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Answered
How to alter the roofed-section in MATLAB example (Track a Car-Like Robot using Particle Filter) for particle filter??
The roofed area is defined in ExampleHelperCarBot helper function.

1 month ago | 0

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Answered
how to create a robot from DH parameters
Ali, the getTransform method is working correctly. But from the way you set the DH parameters, I assume you expect "theta offset...

1 month ago | 0

Answered
Change base body of rigid tree robot.
You can check out the solution provided in this post: https://www.mathworks.com/matlabcentral/answers/696625-change-base-of-rig...

1 month ago | 0

Answered
Why the result of Robotic System Toolbox are different with RTB(Robotics Toolbox for MALTAB)?
Hi, Xiyong, Thanks for posting this question. What you described is indeed a bug in the internal code for computing dynamics qu...

1 month ago | 0

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Answered
Computing the Jacobian matrix of robot centroid.
Hi, Sheng, Thanks for posting this question. What you described is indeed a bug in the internal code for computing centroidal m...

1 month ago | 0

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Answered
How to use inverseKinematics to find configuration to 1) get robot link to pass through position X1 in space and also 2) have end effector position X2?
Sounds like you are trying to solve a multi-constraint IK problem. You should check out the generalizedInverseKinematics feature...

1 month ago | 0

Answered
change base of rigidBodyTree like in SerialLink
Currently there is not a user-facing way to modify the fixed tranform on the robot base - it's always assumed to be at the origi...

2 months ago | 0

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Answered
Can I do a kinematics redundancy by using inverse kinematics?
You sould not use orientationTarget for link1. Try something like below (You only need pose and joint constraints) lbr = impor...

3 months ago | 0

Answered
Simulation pick and place operation on 3 dof robotic arm in matlab environment.
Here are a variety of related examples you can refer to: Manipulator Motion Planning Manipulator Trajectory Generation and Fol...

3 months ago | 0

Answered
output D-H parameters in Rigid body tree
If you import your rigidBodyTree from URDF, in general it cannot be converted to the standard DH representation without alternat...

3 months ago | 0

Answered
Is it possible to call a rigidBodyTree robot model in a Matlab function in Simulink?
Lorenzo, the persistent variable is the correct way. You should also check out the rigid body tree algorithm Simulink blocks i...

4 months ago | 0

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Answered
Error generating code for matchScans() function.
The error from matchScans during cross-platform codegen (like from Windows to ROS target) has been fixed in 20b release. If you...

5 months ago | 0

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Answered
How angular velocity is determined in the example "Path Following with Obstacle Avoidance in Simulink"
There are multiple similification here. kai - desired curvature L - wheelbase d = desired steering angle d = atan(kai*L) ...

1 year ago | 0

Answered
How to optimize the lidarSLAM object poseGraph after removing incorrect loop closures?
Calling removeLoopClosures does not automatically rerun the pose graph optimization, it only removes the LC from the pose graph ...

1 year ago | 0

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