0025991: Cyclic dependency in OCCT detected by WOK compiler

[occt.git] / src / Select3D / Select3D_Projector.lxx

// Created on: 1992-07-09
// Created by: Christophe MARION
// Copyright (c) 1992-1999 Matra Datavision
// 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.

#include <Graphic3d_Mat4d.hxx>
#include <Standard_Assert.hxx>
#include <gp_Vec.hxx>
#include <gp_Pnt.hxx>
#include <gp_Lin.hxx>

//=======================================================================
//function : Perspective
//purpose  :
//=======================================================================
inline Standard_Boolean Select3D_Projector::Perspective() const
{
  return myPersp;
}

//=======================================================================
//function : ProjectionTransformation
//purpose  :
//=======================================================================
inline const Graphic3d_Mat4d& Select3D_Projector::Projection() const
{
  return myProjTrsf;
}

//=======================================================================
//function : Transformation
//purpose  :
//=======================================================================
inline const gp_GTrsf& Select3D_Projector::Transformation() const
{
  return myGTrsf;
}

//=======================================================================
//function : InvertedTransformation
//purpose  :
//=======================================================================
inline const gp_GTrsf& Select3D_Projector::InvertedTransformation() const
{
  return myInvTrsf;
}

//=======================================================================
//function : FullTransformation
//purpose  :
//=======================================================================
inline const gp_Trsf& Select3D_Projector::FullTransformation() const
{
  return myScaledTrsf;
}

//=======================================================================
//function : Focus
//purpose  :
//=======================================================================
inline Standard_Real Select3D_Projector::Focus() const
{
  Standard_ASSERT_RAISE (myPersp, "Not a simplified Perspective.");
  return myFocus;
}

//=======================================================================
//function : Transform
//purpose  :
//=======================================================================
inline void Select3D_Projector::Transform (gp_Vec& theD) const
{
  gp_XYZ aXYZ = theD.XYZ();

  if (myGTrsf.Form() == gp_PntMirror)
  {
    aXYZ.Reverse();
  }
  else if (myGTrsf.Form() != gp_Identity && myGTrsf.Form() != gp_Translation)
  {
    aXYZ.Multiply (myGTrsf.VectorialPart());
  }

  theD.SetXYZ (aXYZ);
}

//=======================================================================
//function : Transform
//purpose  :
//=======================================================================
inline void Select3D_Projector::Transform (gp_Pnt& thePnt) const
{
  Transform (thePnt, myGTrsf);
}

//=======================================================================
//function : Transform
//purpose  :
//=======================================================================
inline void Select3D_Projector::Transform (gp_Lin& theLin, const gp_GTrsf& theTrsf) const
{
  gp_Ax1 anAx1 = theLin.Position();
  gp_XYZ aXYZ = anAx1.Location().XYZ();
  theTrsf.Transforms (aXYZ);
  anAx1.SetLocation (gp_Pnt (aXYZ));
  gp_Dir aDir = anAx1.Direction();
  gp_XYZ aDirXYZ = aDir.XYZ();

  if (theTrsf.Form() == gp_PntMirror) 
  {
    aDirXYZ.Reverse();
  }
  else if (theTrsf.Form() != gp_Identity && theTrsf.Form() != gp_Translation)
  {
    aDirXYZ.Multiply (theTrsf.VectorialPart());
    Standard_Real aModulus = aDirXYZ.Modulus();
    aDirXYZ.Divide (aModulus);
  }

  aDir.SetXYZ (aDirXYZ);
  anAx1.SetDirection (aDir);
  theLin.SetPosition (anAx1);
}

//=======================================================================
//function : Transform
//purpose  :
//=======================================================================
inline void Select3D_Projector::Transform (gp_Pnt& thePnt, const gp_GTrsf& theTrsf) const
{
  gp_XYZ aXYZ = thePnt.XYZ();
  theTrsf.Transforms (aXYZ);
  thePnt = gp_Pnt (aXYZ);
}