1 // Created on: 1997-04-17 2 // Created by: Christophe MARION 3 // Copyright (c) 1997-1999 Matra Datavision 4 // Copyright (c) 1999-2014 OPEN CASCADE SAS 5 // 6 // This file is part of Open CASCADE Technology software library. 7 // 8 // This library is free software; you can redistribute it and/or modify it under 9 // the terms of the GNU Lesser General Public License version 2.1 as published 10 // by the Free Software Foundation, with special exception defined in the file 11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT 12 // distribution for complete text of the license and disclaimer of any warranty. 13 // 14 // Alternatively, this file may be used under the terms of Open CASCADE 15 // commercial license or contractual agreement. 16 17 #ifndef _HLRBRep_EdgeInterferenceTool_HeaderFile 18 #define _HLRBRep_EdgeInterferenceTool_HeaderFile 19 20 #include <Standard.hxx> 21 #include <Standard_DefineAlloc.hxx> 22 #include <Standard_Handle.hxx> 23 24 #include <HLRAlgo_Intersection.hxx> 25 #include <Standard_Integer.hxx> 26 #include <Standard_Boolean.hxx> 27 #include <TopAbs_Orientation.hxx> 28 #include <Standard_Real.hxx> 29 class HLRBRep_Data; 30 class gp_Dir; 31 class HLRAlgo_Interference; 32 33 34 //! Implements the methods required to instantiates 35 //! the EdgeInterferenceList from HLRAlgo. 36 class HLRBRep_EdgeInterferenceTool 37 { 38 public: 39 40 DEFINE_STANDARD_ALLOC 41 42 43 Standard_EXPORT HLRBRep_EdgeInterferenceTool(const Handle(HLRBRep_Data)& DS); 44 45 Standard_EXPORT void LoadEdge(); 46 47 void InitVertices(); 48 49 Standard_Boolean MoreVertices() const; 50 51 void NextVertex(); 52 53 const HLRAlgo_Intersection& CurrentVertex() const; 54 55 TopAbs_Orientation CurrentOrientation() const; 56 57 Standard_Real CurrentParameter() const; 58 59 Standard_Boolean IsPeriodic() const; 60 61 //! Returns local geometric description of the Edge at 62 //! parameter <Para>. See method Reset of class 63 //! EdgeFaceTransition from TopCnx for other arguments. 64 Standard_EXPORT void EdgeGeometry (const Standard_Real Param, gp_Dir& Tgt, gp_Dir& Nrm, Standard_Real& Curv) const; 65 66 Standard_Real ParameterOfInterference (const HLRAlgo_Interference& I) const; 67 68 //! True if the two interferences are on the same 69 //! geometric locus. 70 Standard_EXPORT Standard_Boolean SameInterferences (const HLRAlgo_Interference& I1, const HLRAlgo_Interference& I2) const; 71 72 //! True if the Interference and the current Vertex 73 //! are on the same geometric locus. 74 Standard_EXPORT Standard_Boolean SameVertexAndInterference (const HLRAlgo_Interference& I) const; 75 76 //! Returns the geometry of the boundary at the 77 //! interference <I>. See the AddInterference method 78 //! of the class EdgeFaceTransition from TopCnx for 79 //! the other arguments. 80 Standard_EXPORT void InterferenceBoundaryGeometry (const HLRAlgo_Interference& I, gp_Dir& Tang, gp_Dir& Norm, Standard_Real& Curv) const; 81 82 83 84 85 protected: 86 87 88 89 90 91 private: 92 93 94 95 Handle(HLRBRep_Data) myDS; 96 HLRAlgo_Intersection inter[2]; 97 Standard_Integer cur; 98 99 100 }; 101 102 103 #include <HLRBRep_EdgeInterferenceTool.lxx> 104 105 106 107 108 109 #endif // _HLRBRep_EdgeInterferenceTool_HeaderFile 110