circles3d

 Description of functions operating on 3D circles.

   Circles are represented by a center, a radius and a 3D angle
   representing the normal of the plane containing the circle. 
   C = [xc yc zc R theta phi psi].
   THETA is the colatitude of the normal, in degrees, between 0 and 180
   PHI is the azimut of the normal, in degrees, between 0 and 360
   PSI is the proper rotation of the circle around the normal, between 0
       and 360 degrees
   The parameter PSI is used to locate a point on the 3D circle.

   See also
   circle3dOrigin, circle3dPosition, circle3dPoint, intersectPlaneSphere
   drawCircle3d, drawCircleArc3d, drawEllipse3d

0001 function circles3d(varargin)
0002 % Description of functions operating on 3D circles.
0003 %
0004 %   Circles are represented by a center, a radius and a 3D angle
0005 %   representing the normal of the plane containing the circle.
0006 %   C = [xc yc zc R theta phi psi].
0007 %   THETA is the colatitude of the normal, in degrees, between 0 and 180
0008 %   PHI is the azimut of the normal, in degrees, between 0 and 360
0009 %   PSI is the proper rotation of the circle around the normal, between 0
0010 %       and 360 degrees
0011 %   The parameter PSI is used to locate a point on the 3D circle.
0012 %
0013 %   See also
0014 %   circle3dOrigin, circle3dPosition, circle3dPoint, intersectPlaneSphere
0015 %   drawCircle3d, drawCircleArc3d, drawEllipse3d
0016 %
0017 
0018 % ------
0019 % Author: David Legland
0020 % e-mail: david.legland@inrae.fr
0021 % Created: 2008-10-13,    using Matlab 7.4.0.287 (R2007a)
0022 % Copyright 2008 INRA - BIA PV Nantes - MIAJ Jouy-en-Josas.