include/opencascade/HLRBRep_EdgeInterferenceTool.hxx

0001 // Created on: 1997-04-17
0002 // Created by: Christophe MARION
0003 // Copyright (c) 1997-1999 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 _HLRBRep_EdgeInterferenceTool_HeaderFile
0018 #define _HLRBRep_EdgeInterferenceTool_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <HLRAlgo_Intersection.hxx>
0025 #include <Standard_Integer.hxx>
0026 #include <TopAbs_Orientation.hxx>
0027 class HLRBRep_Data;
0028 class gp_Dir;
0029 class HLRAlgo_Interference;
0030
0031 //! Implements the  methods required  to  instantiates
0032 //! the EdgeInterferenceList from HLRAlgo.
0033 class HLRBRep_EdgeInterferenceTool
0034 {
0035 public:
0036   DEFINE_STANDARD_ALLOC
0037
0038   Standard_EXPORT HLRBRep_EdgeInterferenceTool(const Handle(HLRBRep_Data)& DS);
0039
0040   Standard_EXPORT void LoadEdge();
0041
0042   void InitVertices();
0043
0044   Standard_Boolean MoreVertices() const;
0045
0046   void NextVertex();
0047
0048   const HLRAlgo_Intersection& CurrentVertex() const;
0049
0050   TopAbs_Orientation CurrentOrientation() const;
0051
0052   Standard_Real CurrentParameter() const;
0053
0054   Standard_Boolean IsPeriodic() const;
0055
0056   //! Returns local geometric description of the Edge at
0057   //! parameter   <Para>.  See  method  Reset  of  class
0058   //! EdgeFaceTransition from TopCnx for other arguments.
0059   Standard_EXPORT void EdgeGeometry(const Standard_Real Param,
0060                                     gp_Dir&             Tgt,
0061                                     gp_Dir&             Nrm,
0062                                     Standard_Real&      Curv) const;
0063
0064   Standard_Real ParameterOfInterference(const HLRAlgo_Interference& I) const;
0065
0066   //! True if   the  two interferences are on   the same
0067   //! geometric locus.
0068   Standard_EXPORT Standard_Boolean SameInterferences(const HLRAlgo_Interference& I1,
0069                                                      const HLRAlgo_Interference& I2) const;
0070
0071   //! True if the  Interference and the  current  Vertex
0072   //! are on the same geometric locus.
0073   Standard_EXPORT Standard_Boolean SameVertexAndInterference(const HLRAlgo_Interference& I) const;
0074
0075   //! Returns   the  geometry of  the   boundary  at the
0076   //! interference  <I>.  See the AddInterference method
0077   //! of the class  EdgeFaceTransition  from  TopCnx for
0078   //! the other arguments.
0079   Standard_EXPORT void InterferenceBoundaryGeometry(const HLRAlgo_Interference& I,
0080                                                     gp_Dir&                     Tang,
0081                                                     gp_Dir&                     Norm,
0082                                                     Standard_Real&              Curv) const;
0083
0084 protected:
0085 private:
0086   Handle(HLRBRep_Data) myDS;
0087   HLRAlgo_Intersection inter[2];
0088   Standard_Integer     cur;
0089 };
0090
0091 #include <HLRBRep_EdgeInterferenceTool.lxx>
0092
0093 #endif // _HLRBRep_EdgeInterferenceTool_HeaderFile