include/opencascade/TopOpeBRepBuild_PaveClassifier.hxx

0001 // Created on: 1993-06-17
0002 // Created by: Jean Yves LEBEY
0003 // Copyright (c) 1993-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _TopOpeBRepBuild_PaveClassifier_HeaderFile
0018 #define _TopOpeBRepBuild_PaveClassifier_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <TopoDS_Edge.hxx>
0025 #include <TopAbs_Orientation.hxx>
0026 #include <Standard_Integer.hxx>
0027 #include <TopOpeBRepBuild_LoopClassifier.hxx>
0028 #include <TopAbs_State.hxx>
0029 class TopoDS_Shape;
0030 class TopOpeBRepBuild_Loop;
0031
0032 //! This class compares vertices on an edge.
0033 //!
0034 //! A vertex V1 is inside a vertex V2 if V1 is on the
0035 //! part of the curve defined by V2.
0036 //!
0037 //! If V2 is FORWARD V1 must be after V2 on the curve.
0038 //! If V2 is REVERSED V1 must be before V2 on the curve.
0039 //! If V2 is INTERNAL V1 is always inside.
0040 //! If V2 is EXTERNAL V1 is never inside.
0041 class TopOpeBRepBuild_PaveClassifier : public TopOpeBRepBuild_LoopClassifier
0042 {
0043 public:
0044   DEFINE_STANDARD_ALLOC
0045
0046   //! Create a Pave classifier to compare vertices on edge <E>.
0047   Standard_EXPORT TopOpeBRepBuild_PaveClassifier(const TopoDS_Shape& E);
0048
0049   //! Returns state of vertex <L1> compared with <L2>.
0050   Standard_EXPORT TopAbs_State Compare(const occ::handle<TopOpeBRepBuild_Loop>& L1,
0051                                        const occ::handle<TopOpeBRepBuild_Loop>& L2) override;
0052
0053   Standard_EXPORT void SetFirstParameter(const double P);
0054
0055   Standard_EXPORT void ClosedVertices(const bool B);
0056
0057   Standard_EXPORT static double AdjustCase(const double             p1,
0058                                            const TopAbs_Orientation o,
0059                                            const double             first,
0060                                            const double             period,
0061                                            const double             tol,
0062                                            int&                     cas);
0063
0064 private:
0065   Standard_EXPORT TopAbs_State CompareOnNonPeriodic();
0066
0067   Standard_EXPORT TopAbs_State CompareOnPeriodic();
0068
0069   Standard_EXPORT void AdjustOnPeriodic();
0070
0071   Standard_EXPORT bool ToAdjustOnPeriodic() const;
0072
0073   TopoDS_Edge        myEdge;
0074   bool               myEdgePeriodic;
0075   double             myFirst;
0076   double             myPeriod;
0077   bool               mySameParameters;
0078   bool               myClosedVertices;
0079   double             myP1;
0080   double             myP2;
0081   TopAbs_Orientation myO1;
0082   TopAbs_Orientation myO2;
0083   int                myCas1;
0084   int                myCas2;
0085 };
0086
0087 #endif // _TopOpeBRepBuild_PaveClassifier_HeaderFile