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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_EdgeBuilder_HeaderFile |
18 | #define _HLRBRep_EdgeBuilder_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
24 | #include <TopAbs_State.hxx> |
25 | #include <Standard_Integer.hxx> |
26 | #include <Standard_Boolean.hxx> |
27 | #include <TopAbs_Orientation.hxx> |
28 | class HLRBRep_AreaLimit; |
29 | class Standard_NoMoreObject; |
30 | class Standard_NoSuchObject; |
31 | class Standard_DomainError; |
32 | class HLRBRep_VertexList; |
33 | class HLRAlgo_Intersection; |
34 | |
35 | |
36 | |
37 | class HLRBRep_EdgeBuilder |
38 | { |
39 | public: |
40 | |
41 | DEFINE_STANDARD_ALLOC |
42 | |
43 | |
44 | //! Creates an EdgeBuilder algorithm. <VList> |
45 | //! describes the edge and the interferences. |
46 | //! AreaLimits are created from the vertices. |
47 | //! Builds(IN) is automatically called. |
48 | Standard_EXPORT HLRBRep_EdgeBuilder(HLRBRep_VertexList& VList); |
49 | |
50 | //! Initialize an iteration on the areas. |
51 | Standard_EXPORT void InitAreas(); |
52 | |
53 | //! Set the current area to the next area. |
54 | Standard_EXPORT void NextArea(); |
55 | |
56 | //! Set the current area to the previous area. |
57 | Standard_EXPORT void PreviousArea(); |
58 | |
59 | //! Returns True if there is a current area. |
60 | Standard_EXPORT Standard_Boolean HasArea() const; |
61 | |
62 | //! Returns the state of the current area. |
63 | Standard_EXPORT TopAbs_State AreaState() const; |
64 | |
65 | //! Returns the edge state of the current area. |
66 | Standard_EXPORT TopAbs_State AreaEdgeState() const; |
67 | |
68 | //! Returns the AreaLimit beginning the current area. |
69 | //! This is a NULL handle when the area is infinite on |
70 | //! the left. |
71 | Standard_EXPORT Handle(HLRBRep_AreaLimit) LeftLimit() const; |
72 | |
73 | //! Returns the AreaLimit ending the current area. |
74 | //! This is a NULL handle when the area is infinite on |
75 | //! the right. |
76 | Standard_EXPORT Handle(HLRBRep_AreaLimit) RightLimit() const; |
77 | |
78 | //! Reinitialize the results iteration to the parts |
79 | //! with State <ToBuild>. If this method is not called |
80 | //! after construction the default is <ToBuild> = IN. |
81 | Standard_EXPORT void Builds (const TopAbs_State ToBuild); |
82 | |
83 | //! Returns True if there are more new edges to build. |
84 | Standard_EXPORT Standard_Boolean MoreEdges() const; |
85 | |
86 | //! Proceeds to the next edge to build. Skip all |
87 | //! remaining vertices on the current edge. |
88 | Standard_EXPORT void NextEdge(); |
89 | |
90 | //! True if there are more vertices in the current new |
91 | //! edge. |
92 | Standard_EXPORT Standard_Boolean MoreVertices() const; |
93 | |
94 | //! Proceeds to the next vertex of the current edge. |
95 | Standard_EXPORT void NextVertex(); |
96 | |
97 | //! Returns the current vertex of the current edge. |
98 | Standard_EXPORT const HLRAlgo_Intersection& Current() const; |
99 | |
100 | //! Returns True if the current vertex comes from the |
101 | //! boundary of the edge. |
102 | Standard_EXPORT Standard_Boolean IsBoundary() const; |
103 | |
104 | //! Returns True if the current vertex was an |
105 | //! interference. |
106 | Standard_EXPORT Standard_Boolean IsInterference() const; |
107 | |
108 | //! Returns the new orientation of the current vertex. |
109 | Standard_EXPORT TopAbs_Orientation Orientation() const; |
110 | |
111 | Standard_EXPORT void Destroy(); |
112 | ~HLRBRep_EdgeBuilder() |
113 | { |
114 | Destroy(); |
115 | } |
116 | |
117 | |
118 | |
119 | |
120 | protected: |
121 | |
122 | |
123 | |
124 | |
125 | |
126 | private: |
127 | |
128 | |
129 | |
130 | TopAbs_State toBuild; |
131 | Handle(HLRBRep_AreaLimit) myLimits; |
132 | Handle(HLRBRep_AreaLimit) left; |
133 | Handle(HLRBRep_AreaLimit) right; |
134 | Standard_Integer current; |
135 | |
136 | |
137 | }; |
138 | |
139 | |
140 | |
141 | |
142 | |
143 | |
144 | |
145 | #endif // _HLRBRep_EdgeBuilder_HeaderFile |