// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

// modif du 14/09/95 mjm
// prise en compte de l'unite choisi par l'utilisateur
// pour l'ecriture du fichier IGES.

#include <Geom_Direction.hxx>
#include <Geom_Vector.hxx>
#include <Geom_VectorWithMagnitude.hxx>
#include <GeomToIGES_GeomVector.hxx>
#include <gp_XYZ.hxx>
#include <IGESGeom_CopiousData.hxx>
#include <IGESGeom_Direction.hxx>
#include <Interface_Macros.hxx>

//=============================================================================
// GeomToIGES_GeomVector
//=============================================================================
GeomToIGES_GeomVector::GeomToIGES_GeomVector()
:GeomToIGES_GeomEntity()
{
}


//=============================================================================
// GeomToIGES_GeomVector
//=============================================================================

GeomToIGES_GeomVector::GeomToIGES_GeomVector
(const GeomToIGES_GeomEntity& GE)
:GeomToIGES_GeomEntity(GE)
{
}


//=============================================================================
// Transfer des Entites Vector de Geom vers IGES
// TransferVector
//=============================================================================

Handle(IGESGeom_Direction) GeomToIGES_GeomVector::TransferVector
(const Handle(Geom_Vector)& start)
{
  Handle(IGESGeom_Direction) res;
  if (start.IsNull()) {
    return res;
  }

  if (start->IsKind(STANDARD_TYPE(Geom_VectorWithMagnitude))) {
    DeclareAndCast(Geom_VectorWithMagnitude, VMagn, start);
    res = TransferVector(VMagn);
  }
  else if (start->IsKind(STANDARD_TYPE(Geom_Direction))) {
    DeclareAndCast(Geom_Direction, Direction, start);
    res = TransferVector(Direction);
  }

  return res;
}
 

//=============================================================================
// Transfer des Entites VectorWithMagnitude de Geom vers IGES
// TransferVector
//=============================================================================

Handle(IGESGeom_Direction) GeomToIGES_GeomVector::TransferVector
(const Handle(Geom_VectorWithMagnitude)& start)
{
  Handle(IGESGeom_Direction) Dir = new IGESGeom_Direction;
  if (start.IsNull()) {
    return Dir;
  }

  Standard_Real X,Y,Z;
  start->Coord(X,Y,Z); 
  Standard_Real M = start->Magnitude();
  Dir->Init(gp_XYZ(X/(M*GetUnit()),Y/(M*GetUnit()),Z/(M*GetUnit())));
  return Dir;
}
 

//=============================================================================
// Transfer des Entites Direction de Geom vers IGES
// TransferVector
//=============================================================================

Handle(IGESGeom_Direction) GeomToIGES_GeomVector::TransferVector
(const Handle(Geom_Direction)& start)
{
  Handle(IGESGeom_Direction) Dir = new IGESGeom_Direction;
  if (start.IsNull()) {
    return Dir;
  }

  Standard_Real X,Y,Z;
  start->Coord(X,Y,Z);
  Dir->Init(gp_XYZ(X/GetUnit(),Y/GetUnit(),Z/GetUnit()));
  return Dir;
}
