1 // Created on: 1999-04-27 2 // Created by: Andrey BETENEV 3 // Copyright (c) 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 _ShapeFix_WireSegment_HeaderFile 18 #define _ShapeFix_WireSegment_HeaderFile 19 20 #include <Standard.hxx> 21 #include <Standard_DefineAlloc.hxx> 22 #include <Standard_Handle.hxx> 23 24 #include <TopoDS_Vertex.hxx> 25 #include <TopAbs_Orientation.hxx> 26 #include <TColStd_HSequenceOfInteger.hxx> 27 #include <Standard_Boolean.hxx> 28 #include <Standard_Integer.hxx> 29 class ShapeExtend_WireData; 30 class TopoDS_Wire; 31 class TopoDS_Vertex; 32 class TopoDS_Edge; 33 34 35 //! This class is auxiliary class (data storage) used in ComposeShell. 36 //! It is intended for representing segment of the wire 37 //! (or whole wire). The segment itself is represented by 38 //! ShapeExtend_WireData. In addition, some associated data 39 //! necessary for computations are stored: 40 //! 41 //! * Orientation flag - determines current use of the segment 42 //! and used for parity checking: 43 //! 44 //! TopAbs_FORWARD and TopAbs_REVERSED - says that segment was 45 //! traversed once in the corresponding direction, and hence 46 //! it should be traversed once more in opposite direction; 47 //! 48 //! TopAbs_EXTERNAL - the segment was not yet traversed in any 49 //! direction (i.e. not yet used as boundary) 50 //! 51 //! TopAbs_INTERNAL - the segment was traversed in both 52 //! directions and hence is out of further work. 53 //! 54 //! Segments of initial bounding wires are created with 55 //! orientation REVERSED (for outer wire) or FORWARD (for inner 56 //! wires), and segments of splitting seams - with orientation 57 //! EXTERNAL. 58 class ShapeFix_WireSegment 59 { 60 public: 61 62 DEFINE_STANDARD_ALLOC 63 64 65 //! Creates empty segment. 66 Standard_EXPORT ShapeFix_WireSegment(); 67 68 //! Creates segment and initializes it with wire and orientation. 69 Standard_EXPORT ShapeFix_WireSegment(const Handle(ShapeExtend_WireData)& wire, const TopAbs_Orientation ori = TopAbs_EXTERNAL); 70 71 //! Creates segment and initializes it with wire and orientation. 72 Standard_EXPORT ShapeFix_WireSegment(const TopoDS_Wire& wire, const TopAbs_Orientation ori = TopAbs_EXTERNAL); 73 74 //! Clears all fields. 75 Standard_EXPORT void Clear(); 76 77 //! Loads wire. 78 Standard_EXPORT void Load (const Handle(ShapeExtend_WireData)& wire); 79 80 //! Returns wire. 81 Standard_EXPORT const Handle(ShapeExtend_WireData)& WireData() const; 82 83 //! Sets orientation flag. 84 Standard_EXPORT void Orientation (const TopAbs_Orientation ori); 85 86 //! Returns orientation flag. 87 Standard_EXPORT TopAbs_Orientation Orientation() const; 88 89 //! Returns first vertex of the first edge in the wire 90 //! (no dependance on Orientation()). 91 Standard_EXPORT TopoDS_Vertex FirstVertex() const; 92 93 //! Returns last vertex of the last edge in the wire 94 //! (no dependance on Orientation()). 95 Standard_EXPORT TopoDS_Vertex LastVertex() const; 96 97 //! Returns True if FirstVertex() == LastVertex() 98 Standard_EXPORT Standard_Boolean IsClosed() const; 99 100 //! Returns Number of edges in the wire 101 Standard_EXPORT Standard_Integer NbEdges() const; 102 103 //! Returns edge by given index in the wire 104 Standard_EXPORT TopoDS_Edge Edge (const Standard_Integer i) const; 105 106 //! Replaces edge at index i by new one. 107 Standard_EXPORT void SetEdge (const Standard_Integer i, const TopoDS_Edge& edge); 108 109 //! Insert a new edge with index i and implicitly defined 110 //! patch indices (indefinite patch). 111 //! If i==0, edge is inserted at end of wire. 112 Standard_EXPORT void AddEdge (const Standard_Integer i, const TopoDS_Edge& edge); 113 114 //! Insert a new edge with index i and explicitly defined 115 //! patch indices. If i==0, edge is inserted at end of wire. 116 Standard_EXPORT void AddEdge (const Standard_Integer i, const TopoDS_Edge& edge, const Standard_Integer iumin, const Standard_Integer iumax, const Standard_Integer ivmin, const Standard_Integer ivmax); 117 118 //! Set patch indices for edge i. 119 Standard_EXPORT void SetPatchIndex (const Standard_Integer i, const Standard_Integer iumin, const Standard_Integer iumax, const Standard_Integer ivmin, const Standard_Integer ivmax); 120 121 Standard_EXPORT void DefineIUMin (const Standard_Integer i, const Standard_Integer iumin); 122 123 Standard_EXPORT void DefineIUMax (const Standard_Integer i, const Standard_Integer iumax); 124 125 Standard_EXPORT void DefineIVMin (const Standard_Integer i, const Standard_Integer ivmin); 126 127 //! Modify minimal or maximal patch index for edge i. 128 //! The corresponding patch index for that edge is modified so 129 //! as to satisfy eq. iumin <= myIUMin(i) <= myIUMax(i) <= iumax 130 Standard_EXPORT void DefineIVMax (const Standard_Integer i, const Standard_Integer ivmax); 131 132 //! Returns patch indices for edge i. 133 Standard_EXPORT void GetPatchIndex (const Standard_Integer i, Standard_Integer& iumin, Standard_Integer& iumax, Standard_Integer& ivmin, Standard_Integer& ivmax) const; 134 135 //! Checks patch indices for edge i to satisfy equations 136 //! IUMin(i) <= IUMax(i) <= IUMin(i)+1 137 Standard_EXPORT Standard_Boolean CheckPatchIndex (const Standard_Integer i) const; 138 139 Standard_EXPORT void SetVertex (const TopoDS_Vertex& theVertex); 140 141 Standard_EXPORT TopoDS_Vertex GetVertex() const; 142 143 Standard_EXPORT Standard_Boolean IsVertex() const; 144 145 146 147 148 protected: 149 150 151 152 153 154 private: 155 156 157 158 Handle(ShapeExtend_WireData) myWire; 159 TopoDS_Vertex myVertex; 160 TopAbs_Orientation myOrient; 161 Handle(TColStd_HSequenceOfInteger) myIUMin; 162 Handle(TColStd_HSequenceOfInteger) myIUMax; 163 Handle(TColStd_HSequenceOfInteger) myIVMin; 164 Handle(TColStd_HSequenceOfInteger) myIVMax; 165 166 167 }; 168 169 170 171 172 173 174 175 #endif // _ShapeFix_WireSegment_HeaderFile 176