Hi, On Monday 07 September 2009 15:06:56 Marco Lecora wrote: > Could someone help me with this issue please?Thank you in advance
The position is the cartesian coordinate vector in the WGS84 earth centered coordinate system. And the orientation quaternion is that one that rotates a vector in earth centered coordinates into the body coordinate system. Multiplying quaternions means successive rotation. I would guess that you get the orientation of the body wrt the horizontal local frame by premultiplying with the inverse of the orientation of the horizontal local frame. Which means 'first rotate from the horizontal local to the WGS84 then rotate from the WGS84 to the body'. Hope this helps. Mathias ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
