Search found 5 matches

by r9dyt
Sat Sep 12, 2020 5:33 pm
Forum: PyBullet Support and Feedback
Topic: Is calculateInverseDynamics the same as centrifugal force?
Replies: 1
Views: 283

Re: Is calculateInverseDynamics the same as centrifugal force?

I think I figured it out. When acceleration is zero, total force will be equal to centrifugal force from reduced coordinate system.
by r9dyt
Tue Sep 08, 2020 2:32 am
Forum: PyBullet Support and Feedback
Topic: Torque contorl doesn't work for hand loaded from MPL/MPL.xml?
Replies: 0
Views: 173

Torque contorl doesn't work for hand loaded from MPL/MPL.xml?

I'm trying to change joint states by using torque control, but it gives me really wired behavior. However position control is totally fine. I am not sure if this is because MPL/MPL.xml is not URDF format. It will be really appreciated if somebody can provide me some info. The following is a toy exam...
by r9dyt
Fri Sep 04, 2020 11:06 pm
Forum: PyBullet Support and Feedback
Topic: Is calculateInverseDynamics the same as centrifugal force?
Replies: 1
Views: 283

Is calculateInverseDynamics the same as centrifugal force?

I wonder if calling calcuateInverseDynamics will give me the centrifugal force term in the generalized coordinate system. Maybe my questions is completely off the chart, but the reason why I have this questions is because by reading the resource code of the stable PD control, it makes me think this ...
by r9dyt
Tue May 19, 2020 6:17 pm
Forum: PyBullet Support and Feedback
Topic: Questions about stable PD control python script from Pybullet
Replies: 0
Views: 583

Questions about stable PD control python script from Pybullet

Correct me if I am wrong, in the latest version of Pybullet stable PD control is both implemented in the original C++ library and python script. By looking at the python code, I think it’s based on this paper (https://www.cc.gatech.edu/~turk/my_papers/stable_pd.pdf). This paper says as long as kd >=...
by r9dyt
Tue May 19, 2020 4:48 pm
Forum: PyBullet Support and Feedback
Topic: c++ examples are pip install pybullet
Replies: 2
Views: 552

Re: c++ examples are pip install pybullet

There are python script examples you can use. You need to compile C++ library in order to use C++ examples. In other words, you can’t run C++ examples in a python environment.