OCCT

// Created on: 1995-03-22
// Created by: Laurent BUCHARD
// 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.

#ifndef _BRepTopAdaptor_FClass2d_HeaderFile
#define _BRepTopAdaptor_FClass2d_HeaderFile

#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>

#include <CSLib_Class2d.hxx>
#include <NCollection_LinearVector.hxx>
#include <Standard_Integer.hxx>
#include <TopoDS_Face.hxx>
#include <TopAbs_State.hxx>

#include <mutex>
#include <memory>
#include <cstdint>

class BRepClass_FaceExplorer;
class gp_Pnt2d;

class BRepTopAdaptor_FClass2d
{
public:
  DEFINE_STANDARD_ALLOC

  Standard_EXPORT BRepTopAdaptor_FClass2d(const TopoDS_Face& F, const double Tol);

  BRepTopAdaptor_FClass2d(const BRepTopAdaptor_FClass2d&)            = delete;
  BRepTopAdaptor_FClass2d(BRepTopAdaptor_FClass2d&&)                 = delete;
  BRepTopAdaptor_FClass2d& operator=(const BRepTopAdaptor_FClass2d&) = delete;
  BRepTopAdaptor_FClass2d& operator=(BRepTopAdaptor_FClass2d&&)      = delete;

  Standard_EXPORT TopAbs_State PerformInfinitePoint() const;

  Standard_EXPORT TopAbs_State Perform(const gp_Pnt2d& Puv,
                                       const bool      RecadreOnPeriodic = true) const;

  Standard_EXPORT void Destroy();

  Standard_EXPORT ~BRepTopAdaptor_FClass2d();

  //! Test a point with +- an offset (Tol) and returns
  //! On if some points are OUT an some are IN
  //! (Caution: Internal use. see the code for more details)
  Standard_EXPORT TopAbs_State TestOnRestriction(const gp_Pnt2d& Puv,
                                                 const double    Tol,
                                                 const bool      RecadreOnPeriodic = true) const;

private:
  enum class ClassificationMode : uint8_t
  {
    Perform,
    OnRestriction
  };

  enum class WireRole : int8_t
  {
    Invalid = -1,
    Inner   = 0,
    Outer   = 1
  };

  TopAbs_State exactState(const gp_Pnt2d& thePoint, const double theTolerance) const;

  TopAbs_State classify(const gp_Pnt2d&          thePoint,
                        const double             theTolerance,
                        const bool               theRecadreOnPeriodic,
                        const ClassificationMode theMode) const;

private:
  NCollection_LinearVector<CSLib_Class2d>         TabClass;
  NCollection_LinearVector<WireRole>              TabOrien;
  double                                          Toluv;
  TopoDS_Face                                     Face;
  mutable std::unique_ptr<BRepClass_FaceExplorer> myExactExplorer;
  mutable std::mutex                              myExactMutex;
  bool                                            myIsUPeriodic;
  bool                                            myIsVPeriodic;
  double                                          myUPeriod;
  double                                          myVPeriod;
  double                                          U1;
  double                                          V1;
  double                                          U2;
  double                                          V2;
  double                                          Umin;
  double                                          Umax;
  double                                          Vmin;
  double                                          Vmax;
};

#endif // _BRepTopAdaptor_FClass2d_HeaderFile