Hi chipp,
> Just to throw a monkeywrench in all of this, I'm thinking he's talking about
> plain old object hierarchy and instances.
Probably yes for some of the examples, but this particular one here seems to be a constraint based editing mechanism:
http://moi3d.com/forum/index.php?webtag=MOI&msg=7404.6
That's something like constrain one line endpoint to be on a circle, constrain the lengths of the other lines and a couple of locations of other endpoints, then move the unlocked endpoint around and have it recalculate.
I think that's the particular image that made me realize that constraints are what's being asked for.
- Michael
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