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1 | // Copyright (c) 2013 OPEN CASCADE SAS |
2 | // |
3 | // This file is part of Open CASCADE Technology software library. |
4 | // |
5 | // This library is free software; you can redistribute it and/or modify it under |
6 | // the terms of the GNU Lesser General Public License version 2.1 as published |
7 | // by the Free Software Foundation, with special exception defined in the file |
8 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
9 | // distribution for complete text of the license and disclaimer of any warranty. |
10 | // |
11 | // Alternatively, this file may be used under the terms of Open CASCADE |
12 | // commercial license or contractual agreement. |
13 | |
14 | #ifndef _BRepMesh_Edge_HeaderFile |
15 | #define _BRepMesh_Edge_HeaderFile |
16 | |
17 | #include <Standard.hxx> |
18 | #include <Standard_DefineAlloc.hxx> |
19 | #include <Standard_Macro.hxx> |
20 | #include <BRepMesh_DegreeOfFreedom.hxx> |
21 | |
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22 | //! Light weighted structure representing simple link. |
23 | class BRepMesh_OrientedEdge |
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24 | { |
25 | public: |
26 | |
27 | DEFINE_STANDARD_ALLOC |
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28 | |
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29 | //! Default constructor. |
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30 | Standard_EXPORT BRepMesh_OrientedEdge() |
31 | : myFirstNode(-1), |
32 | myLastNode(-1) |
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33 | { |
34 | } |
35 | |
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36 | //! Constructs a link between two vertices. |
37 | Standard_EXPORT BRepMesh_OrientedEdge( |
38 | const Standard_Integer theFirstNode, |
39 | const Standard_Integer theLastNode) |
40 | : myFirstNode(theFirstNode), |
41 | myLastNode(theLastNode) |
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42 | { |
43 | } |
44 | |
45 | //! Returns index of first node of the Link. |
46 | inline Standard_Integer FirstNode() const |
47 | { |
48 | return myFirstNode; |
49 | } |
50 | |
51 | //! Returns index of last node of the Link. |
52 | inline Standard_Integer LastNode() const |
53 | { |
54 | return myLastNode; |
55 | } |
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56 | |
57 | //! Returns hash code for this edge. |
58 | //! @param theUpper upper index in the container. |
59 | //! @return hash code. |
60 | Standard_EXPORT Standard_Integer HashCode(const Standard_Integer theUpper) const |
61 | { |
62 | return ::HashCode(myFirstNode + myLastNode, theUpper); |
63 | } |
64 | |
65 | //! Checks this and other edge for equality. |
66 | //! @param theOther edge to be checked against this one. |
67 | //! @retrun TRUE if edges have the same orientation, FALSE if not. |
68 | inline Standard_Boolean IsEqual(const BRepMesh_OrientedEdge& theOther) const |
69 | { |
70 | return (myFirstNode == theOther.myFirstNode && myLastNode == theOther.myLastNode); |
71 | } |
72 | |
73 | //! Alias for IsEqual. |
74 | Standard_Boolean operator ==(const BRepMesh_OrientedEdge& Other) const |
75 | { |
76 | return IsEqual(Other); |
77 | } |
78 | |
79 | private: |
80 | |
81 | Standard_Integer myFirstNode; |
82 | Standard_Integer myLastNode; |
83 | }; |
84 | |
85 | //! Light weighted structure representing link of the mesh. |
86 | class BRepMesh_Edge : public BRepMesh_OrientedEdge |
87 | { |
88 | public: |
89 | |
90 | //! Default constructor. |
91 | Standard_EXPORT BRepMesh_Edge() |
92 | : BRepMesh_OrientedEdge(), |
93 | myMovability(BRepMesh_Deleted) |
94 | { |
95 | } |
96 | |
97 | //! Constructs a link between two vertices. |
98 | Standard_EXPORT BRepMesh_Edge( |
99 | const Standard_Integer theFirstNode, |
100 | const Standard_Integer theLastNode, |
101 | const BRepMesh_DegreeOfFreedom theMovability) |
102 | : BRepMesh_OrientedEdge(theFirstNode, theLastNode), |
103 | myMovability(theMovability) |
104 | { |
105 | } |
106 | |
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107 | //! Returns movability flag of the Link. |
108 | inline BRepMesh_DegreeOfFreedom Movability() const |
109 | { |
110 | return myMovability; |
111 | } |
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112 | |
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113 | //! Sets movability flag of the Link. |
114 | //! \param theMovability flag to be set. |
115 | inline void SetMovability(const BRepMesh_DegreeOfFreedom theMovability) |
116 | { |
117 | myMovability = theMovability; |
118 | } |
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119 | |
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120 | //! Checks if the given edge and this one have the same orientation. |
121 | //! \param theOther edge to be checked against this one. |
122 | //! \retrun TRUE if edges have the same orientation, FALSE if not. |
123 | inline Standard_Boolean IsSameOrientation(const BRepMesh_Edge& theOther) const |
124 | { |
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125 | return BRepMesh_OrientedEdge::IsEqual(theOther); |
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126 | } |
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127 | |
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128 | //! Checks for equality with another edge. |
129 | //! \param theOther edge to be checked against this one. |
130 | //! \return TRUE if equal, FALSE if not. |
131 | inline Standard_Boolean IsEqual(const BRepMesh_Edge& theOther) const |
132 | { |
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133 | if (myMovability == BRepMesh_Deleted || theOther.myMovability == BRepMesh_Deleted) |
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134 | return Standard_False; |
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135 | |
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136 | return IsSameOrientation(theOther) || |
137 | (FirstNode() == theOther.LastNode() && LastNode() == theOther.FirstNode()); |
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138 | } |
139 | |
140 | //! Alias for IsEqual. |
141 | Standard_Boolean operator ==(const BRepMesh_Edge& Other) const |
142 | { |
143 | return IsEqual(Other); |
144 | } |
145 | |
146 | private: |
147 | |
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148 | BRepMesh_DegreeOfFreedom myMovability; |
149 | }; |
150 | |
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151 | inline Standard_Integer HashCode(const BRepMesh_OrientedEdge& theEdge, |
152 | const Standard_Integer theUpper) |
153 | { |
154 | return theEdge.HashCode(theUpper); |
155 | } |
156 | |
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157 | inline Standard_Integer HashCode(const BRepMesh_Edge& theEdge, |
158 | const Standard_Integer theUpper) |
159 | { |
160 | return theEdge.HashCode(theUpper); |
161 | } |
162 | |
163 | #endif |