how to make a object (mass=0) move?

[zhang-qiang-github]

I am learning examples/beam_model.py:

For this beam, the left is fixed by setting mass=0. And the other point is moving.

I want the whole beam is moving along x axis. For example:

The black indicate the beam at t, and the gray indicate the beam at t+1. I hope there are two moving for beam:

1. the fix point is moving along x axis. If the fix point is (0,0,0) at t, I hope it turn to be (vx, 0, 0) at t+1.
2. the beam continue bending because of the gravity.

How can I make it moving along x axis? Any suggestion is helpful.

[janbender]

You could animate the fixed points, e.g. by using a Python script:
https://positionbaseddynamics.readthedocs.io/en/latest/py_getting_started.html

The project also contains some examples that may help you.

[zhang-qiang-github]

Thank you very much for reply. But, “pyPBD/examples” provide very few examples. I can not find a similar demo with my situation.