POV-Ray : Newsgroups : moray.win : Ik Rocker Joint : Re: Ik Rocker Joint Server Time
29 Jul 2024 02:22:27 EDT (-0400)
  Re: Ik Rocker Joint  
From: Alexander Enzmann
Date: 13 Jul 1999 08:53:31
Message: <378B36DC.95644F@mitre.org>
I don't think you can do exactly what you want - the way Moray currently
handles IK, you can only set limits on the relative motion of an object
with respect to it's parent.

What I think you want to do is to allow a bar to rotate and have the
arms stay oriented the same way (appearing to slide back and forth).  To
get this effect, you need to counter-rotate the arms as the bar rotates.

It isn't possible to set limits on the orientation/position of an object
in world coordinates.  This type of constraint would be really useful.

Xander

Albert V Barnett 'Vernon' wrote:
> 
> Here's the problem I have a rocker joint ie like a rocker in a valve head. I
> want the two translate objects  to translate back and forth as i rock the
> rocker back and forth.
> 
>  <|><====>
>    |
>  <|><====>
> 
>  Any help would be greatly appreciated.


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