0027780: Face-face intersection produces 2D curve that has reversed derivative at...

[occt.git] / src / IntPatch / IntPatch_PrmPrmIntersection.lxx

// Copyright (c) 1995-1999 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 <StdFail_NotDone.hxx>
#include <IntPatch_Line.hxx>



#define _DECAL    7
#define _DECAL2   14
#define _BASE     128
#define _BASEM1   127


//======================================================================
inline Standard_Integer IntPatch_PrmPrmIntersection::NbLines() const { 
  if(!done) 
    StdFail_NotDone::Raise(" IntPatch_PrmPrmIntersection ");
  return(SLin.Length());
}

//======================================================================
inline const Handle(IntPatch_Line)& IntPatch_PrmPrmIntersection::Line
  (const Standard_Integer n) const {
  if(!done) 
    StdFail_NotDone::Raise(" IntPatch_PrmPrmIntersection ");
  return(SLin.Value(n));
}

//======================================================================
inline Standard_Boolean IntPatch_PrmPrmIntersection::IsEmpty() const { 
  if(!done) 
    StdFail_NotDone::Raise(" IntPatch_PrmPrmIntersection ");
  return(empt);
}

//======================================================================
inline Standard_Boolean IntPatch_PrmPrmIntersection::IsDone() const { 
  return(done);
}

inline Standard_Integer IntPatch_PrmPrmIntersection::GrilleInteger(const Standard_Integer ix,
								   const Standard_Integer iy,
								   const Standard_Integer iz) const 
{ 
  Standard_Integer tz = iz<<_DECAL2;
  Standard_Integer ty = iy<<_DECAL;
  Standard_Integer t  = ix;
  t|=ty;
  t|=tz;
  return(t);
}

inline void IntPatch_PrmPrmIntersection::IntegerGrille(const Standard_Integer tt,
						       Standard_Integer &ix,
						       Standard_Integer &iy,
						       Standard_Integer &iz) const 
{ 
  Standard_Integer t = tt;
  ix = t & _BASEM1;
  t>>=_DECAL;
  iy = t & _BASEM1;
  t>>=_DECAL;
  iz = t;
}

inline Standard_Integer IntPatch_PrmPrmIntersection::DansGrille(const Standard_Integer t) const 
{
  if(t>=0) {
    if(t<_BASE){ 
      return(1);
    }
  }
  return(0);
}

inline Standard_Integer IntPatch_PrmPrmIntersection::NbPointsGrille() const
{ return(_BASE); } 


inline Standard_Integer IntPatch_PrmPrmIntersection::CodeReject(const Standard_Real x0,
								const Standard_Real y0,
								const Standard_Real z0,
								const Standard_Real x1,
								const Standard_Real y1,
								const Standard_Real z1,
								const Standard_Real x,
								const Standard_Real y,
								const Standard_Real z) const 
{      
  int code = 0;
  if(x<x0) code =1; 
  if(y<y0) code|=2;
  if(z<z0) code|=4;
  if(x>x1) code|=8;
  if(y>y1) code|=16;
  if(z>z1) code|=32;
  return(code);
}