Quote - I never came across an analytical treatment (everything effectively deals with the equal height case).
I was sure that there must be one somewhere, but all I came across was (expensive) programs for calculating the hang of anchor cables for ships and the like.

Thanks, nruddock!  :thumbupboth:  That's helpful.  I'll look into the methods of Newton.  :laugh:

Quote - I've started doing some simple ERC for the chain, just Side-Side All, Bend All, Twist All, and some dials to stop the chain links from rotating on various axes, which can be handy when posing the chain with the cursor. I'll also try to find a way to make gravity curves, though it won't automatically give you the correct curve, you would have to judge by eye when to stop turning the dial. That's assuming that I can get it to work at all.

Sounds great!  I'll hold off on trying to add any ERC until I see what you have.  :thumbupboth:

The script is creating the geometry correctly along any of the axes and exporting properly with groups and materials.  The .cr2 is being written properly, but without any channels yet.  The .cr2 loads correctly into Poser and seems lacking in errors so far.  The origins and endpoints are being set correctly, based on the donor .cr2 prepared by lesbentley.

So I just have to put the channels together and add them in to the .cr2.  Then any ERC can be plugged in where appropriate.

I doubt I'll get this together tonight, but I think I can finish the basic chain script some time tomorrow, to be posted.

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Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.