On Fri, 14 Jul 2006 12:16:56 -0300, Andy Little <andy@servocomm.freeserve.co.uk> wrote:
Is there any chance of writing some sort of quaternions for dummies documentation? Basically I am the dummy when it comes to maths , unless I have some job to perform like getting point x and rotating it about axis a through angle b. Unfortunately the higher level stuff is putting the quaternion library out of my reach. I think my only use for quaternions is for rotation. My basic use case (maybe like Janek) would be
1) some way to construct the quaternion from (say) an axis angle representation of the rotation 2) some way to apply it to a 3D point.
Jaap Suter (http://jaapsuter.com/) has an introduction to geometric algebra in his home page. GA subsumes quaternions. He was also working in a C++ library that handled GA objects, including their units. Bruno