On 10/1/2007 9:44 AM, Abu Naser wrote: > Hi Duncan, > > Thanks for your replay. > I am confused as I dont have the quaternion backgorund. > > Let me explain what I am trying to do: > I have 3 coordinates in space (x1,y1,z1),(x2,y2,z2), and (x3,y3,z3) . Now, I > use (x1,y1,z1) and (x2,y2,z2) to define axis of rotaion. Then, I wanted to > use 3rd coordinate to calculate angle of rotation about that axis. Is it > possible with your orientlib?
I think you need to be more specific about how the rotation is defined. Two points define a line in an obvious way, but how does the third point define an angle? Duncan Murdoch ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
