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// $Id: G4OpenInventorTransform3D.cc,v 1.8 2006/06/29 21:22:16 gunter Exp $
// GEANT4 tag $Name: geant4-08-01-patch-01 $
//
// 
// jck 17 Dec 1996
// G4OpenInventorTransform3D provides OpenGL style transformation matrix
// from G4Transform3D.
// gb 22 Nov 2004 : use SbMatrix instead of SoSFMatrix.

#ifdef G4VIS_BUILD_OI_DRIVER

// this :
#include "G4OpenInventorTransform3D.hh"

#include <Inventor/SbLinear.h>

G4OpenInventorTransform3D::G4OpenInventorTransform3D (const G4Transform3D &t) 
: G4Transform3D (t) {
#define elem(i,j) ((float)t(i,j))
  m[0]  = elem(0,0); //xx
  m[1]  = elem(1,0); //yx
  m[2]  = elem(2,0); //zx
  m[3]  = 0;
  m[4]  = elem(0,1); //xy
  m[5]  = elem(1,1); //yy
  m[6]  = elem(2,1); //zy
  m[7]  = 0;
  m[8]  = elem(0,2); //xz
  m[9]  = elem(1,2); //yz
  m[10] = elem(2,2); //zz
  m[11] = 0;
  m[12] = elem(0,3); //dx
  m[13] = elem(1,3); //dy
  m[14] = elem(2,3); //dz
  m[15] = 1;
#undef elem
}

SbMatrix* G4OpenInventorTransform3D::GetSbMatrix () const {
  SbMatrix* tm = new SbMatrix(m[0],m[1],m[2],m[3],
                              m[4],m[5],m[6],m[7],
                              m[8],m[9],m[10],m[11],
                              m[12],m[13],m[14],m[15]);
  return tm;
}

#endif