NORMALIZEPLANE Normalize parametric representation of a plane.

   PLANE2 = normalizePlane(PLANE1);
   Transforms the plane PLANE1 in the following format:
   [X0 Y0 Z0  DX1 DY1 DZ1  DX2 DY2 DZ2], where:
   - (X0, Y0, Z0) is a point belonging to the plane
   - (DX1, DY1, DZ1) is a first direction vector
   - (DX2, DY2, DZ2) is a second direction vector
   into another plane, with the same format, but with:
   - (x0 y0 z0) is the closest point of plane to the origin
   - (DX1 DY1 DZ1) has norm equal to 1
   - (DX2 DY2 DZ2) has norm equal to 1 and is orthogonal to (DX1 DY1 DZ1)
   
   See also:
   planes3d, createPlane

   ---------
   author: David Legland 
   INRA - TPV URPOI - BIA IMASTE
   created the 21/02/2005.

Package: matgeom