vpython arrows

[rose]

I want to define the endpoint of one arrow in vpython so that I position another arrow there (creating two linkages). How can I do that? Do I need to brute force define where the endpoint of the next arrow is?

[Larz60+]

you may get an answer to your question here, but I would also ask one of the authors as I think you will get a response sooner.
see: https://pypi.org/project/vpython/ and click on authors to get email address.