Re: [Algorithms] Representing Animation Key Frame with Quaternion+Translation Vector

[Lim S. C. <si...@ga...>]

Thanks for the replies, guys.
   
  Suppose I have a hierarchy with 2 connected bones. One of them (bone0) is the root, the other (bone1) is the child. 
   
  Say bone0 has transformation T0 (q0, p0) and bone 1 has T1 (q1, p1), where q0, q1 are quaternions representing modelling space rotation, and p0, p1 are vectors representing modelling space translations.
   
  To compute the world space orientation for bone1, I would do the following: 
  q1World = qWorld X q0 X q1; 
   
  I am really interested to find out if there is a similar way to compute the world space translation for bone1.
   
  Thanks!
  

"Marc B. Reynolds" <mar...@or...> wrote:
  

> Is "study parameter" a typo there? I couldn't find any google hits on
that phrase.

Try "study parameters", with an additional key, such as:
kinematics, screw, wrench, twist, robotics, etc. 

Some works use "Study parameters" to replace the "dual", since dual is
heavily overloaded in mathematics. 




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