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google-deepmind / mujoco

Multi-Joint dynamics with Contact. A general purpose physics simulator.
https://mujoco.org
Apache License 2.0
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Model documentation of cable composite object missing #873

Closed giotherobot closed 1 year ago

giotherobot commented 1 year ago

Hi,

I'm a robotics engineer trying to use MuJoCo for simulating a flexible thin metal rod.

In the model documentation of the composite object there is no mention of the cable: https://mujoco.readthedocs.io/en/latest/modeling.html#composite-objects, even though trying to use a rope object triggers a warning that it is deprecated in favor of the cable.

The description in the XML reference is there and very useful: https://mujoco.readthedocs.io/en/latest/XMLreference.html#body-composite

It would be useful to have a more complete description of the cable composite object.

quagla commented 1 year ago

I will write the documentation, thank you for flagging this.

In the meantime, the following discussions might be useful: https://github.com/deepmind/mujoco/issues/827 https://github.com/deepmind/mujoco/issues/727

Any questions, please let me know.

giotherobot commented 1 year ago

Thanks for the feedback! I will look into those.