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
0033
0034 //! This class compares vertices on an edge.
0035 //!
0036 //! A vertex V1 is inside a vertex V2 if V1 is on the
0037 //! part of the curve defined by V2.
0038 //!
0039 //! If V2 is FORWARD V1 must be after V2 on the curve.
0040 //! If V2 is REVERSED V1 must be before V2 on the curve.
0041 //! If V2 is INTERNAL V1 is always inside.
0042 //! If V2 is EXTERNAL V1 is never inside.
0043 class TopOpeBRepBuild_PaveClassifier  : public TopOpeBRepBuild_LoopClassifier
0044 {
0045 public:
0046
0047   DEFINE_STANDARD_ALLOC
0048
0049
0050   //! Create a Pave classifier to compare vertices on edge <E>.
0051   Standard_EXPORT TopOpeBRepBuild_PaveClassifier(const TopoDS_Shape& E);
0052
0053   //! Returns state of vertex <L1> compared with <L2>.
0054   Standard_EXPORT TopAbs_State Compare (const Handle(TopOpeBRepBuild_Loop)& L1, const Handle(TopOpeBRepBuild_Loop)& L2);
0055
0056   Standard_EXPORT void SetFirstParameter (const Standard_Real P);
0057
0058   Standard_EXPORT void ClosedVertices (const Standard_Boolean B);
0059
0060   Standard_EXPORT static Standard_Real AdjustCase (const Standard_Real p1, const TopAbs_Orientation o, const Standard_Real first, const Standard_Real period, const Standard_Real tol, Standard_Integer& cas);
0061
0062
0063
0064
0065 protected:
0066
0067
0068
0069
0070
0071 private:
0072
0073
0074   Standard_EXPORT TopAbs_State CompareOnNonPeriodic();
0075
0076   Standard_EXPORT TopAbs_State CompareOnPeriodic();
0077
0078   Standard_EXPORT void AdjustOnPeriodic();
0079
0080   Standard_EXPORT Standard_Boolean ToAdjustOnPeriodic() const;
0081
0082
0083   TopoDS_Edge myEdge;
0084   Standard_Boolean myEdgePeriodic;
0085   Standard_Real myFirst;
0086   Standard_Real myPeriod;
0087   Standard_Boolean mySameParameters;
0088   Standard_Boolean myClosedVertices;
0089   Standard_Real myP1;
0090   Standard_Real myP2;
0091   TopAbs_Orientation myO1;
0092   TopAbs_Orientation myO2;
0093   Standard_Integer myCas1;
0094   Standard_Integer myCas2;
0095
0096
0097 };
0098
0099
0100
0101
0102
0103
0104
0105 #endif // _TopOpeBRepBuild_PaveClassifier_HeaderFile