1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
// This file is generated by WOK (CPPExt).
// Please do not edit this file; modify original file instead.
// The copyright and license terms as defined for the original file apply to
// this header file considered to be the "object code" form of the original source.
#ifndef _Poly_Triangulation_HeaderFile
#define _Poly_Triangulation_HeaderFile
#ifndef _Standard_HeaderFile
#include <Standard.hxx>
#endif
#ifndef _Standard_DefineHandle_HeaderFile
#include <Standard_DefineHandle.hxx>
#endif
#ifndef _Handle_Poly_Triangulation_HeaderFile
#include <Handle_Poly_Triangulation.hxx>
#endif
#ifndef _Standard_Real_HeaderFile
#include <Standard_Real.hxx>
#endif
#ifndef _Standard_Integer_HeaderFile
#include <Standard_Integer.hxx>
#endif
#ifndef _TColgp_Array1OfPnt_HeaderFile
#include <TColgp_Array1OfPnt.hxx>
#endif
#ifndef _Handle_TColgp_HArray1OfPnt2d_HeaderFile
#include <Handle_TColgp_HArray1OfPnt2d.hxx>
#endif
#ifndef _Poly_Array1OfTriangle_HeaderFile
#include <Poly_Array1OfTriangle.hxx>
#endif
#ifndef _Handle_TShort_HArray1OfShortReal_HeaderFile
#include <Handle_TShort_HArray1OfShortReal.hxx>
#endif
#ifndef _MMgt_TShared_HeaderFile
#include <MMgt_TShared.hxx>
#endif
#ifndef _Standard_Boolean_HeaderFile
#include <Standard_Boolean.hxx>
#endif
class TColgp_HArray1OfPnt2d;
class TShort_HArray1OfShortReal;
class Standard_DomainError;
class Standard_NullObject;
class TColgp_Array1OfPnt;
class Poly_Array1OfTriangle;
class TColgp_Array1OfPnt2d;
class TShort_Array1OfShortReal;
//! Provides a triangulation for a surface, a set of surfaces, or <br>
//! more generally a shape. <br>
//! A triangulation consists of an approximate representation <br>
//! of the actual shape, using a collection of points and <br>
//! triangles. The points are located on the surface. The <br>
//! edges of the triangles connect adjacent points with a <br>
//! straight line that approximates the true curve on the surface. <br>
//! A triangulation comprises: <br>
//! - A table of 3D nodes (3D points on the surface). <br>
//! - A table of triangles. Each triangle (Poly_Triangle <br>
//! object) comprises a triplet of indices in the table of 3D <br>
//! nodes specific to the triangulation. <br>
//! - A table of 2D nodes (2D points), parallel to the table of <br>
//! 3D nodes. This table is optional. If it exists, the <br>
//! coordinates of a 2D point are the (u, v) parameters <br>
//! of the corresponding 3D point on the surface <br>
//! approximated by the triangulation. <br>
//! - A deflection (optional), which maximizes the distance <br>
//! from a point on the surface to the corresponding point <br>
//! on its approximate triangulation. <br>
//! In many cases, algorithms do not need to work with the <br>
//! exact representation of a surface. A triangular <br>
//! representation induces simpler and more robust adjusting, <br>
//! faster performances, and the results are as good. <br>
class Poly_Triangulation : public MMgt_TShared {
public:
//! Constructs a triangulation from a set of triangles. The <br>
//! triangulation is initialized without a triangle or a node, but capable of <br>
//! containing nbNodes nodes, and nbTriangles <br>
//! triangles. Here the UVNodes flag indicates whether <br>
//! 2D nodes will be associated with 3D ones, (i.e. to <br>
//! enable a 2D representation). <br>
Standard_EXPORT Poly_Triangulation(const Standard_Integer nbNodes,const Standard_Integer nbTriangles,const Standard_Boolean UVNodes);
//! Constructs a triangulation from a set of triangles. The <br>
//! triangulation is initialized with 3D points from Nodes and triangles <br>
//! from Triangles. <br>
Standard_EXPORT Poly_Triangulation(const TColgp_Array1OfPnt& Nodes,const Poly_Array1OfTriangle& Triangles);
//! Constructs a triangulation from a set of triangles. The <br>
//! triangulation is initialized with 3D points from Nodes, 2D points from <br>
//! UVNodes and triangles from Triangles, where <br>
//! coordinates of a 2D point from UVNodes are the <br>
//! (u, v) parameters of the corresponding 3D point <br>
//! from Nodes on the surface approximated by the <br>
//! constructed triangulation. <br>
Standard_EXPORT Poly_Triangulation(const TColgp_Array1OfPnt& Nodes,const TColgp_Array1OfPnt2d& UVNodes,const Poly_Array1OfTriangle& Triangles);
//! Returns the deflection of this triangulation. <br>
Standard_EXPORT Standard_Real Deflection() const;
//! Sets the deflection of this triangulation to D. <br>
//! See more on deflection in Polygon2D <br>
Standard_EXPORT void Deflection(const Standard_Real D) ;
//! Deallocates the UV nodes. <br>
Standard_EXPORT void RemoveUVNodes() ;
//! Returns the number of nodes for this triangulation. <br>
//! Null if the nodes are not yet defined. <br>
Standard_Integer NbNodes() const;
//! Returns the number of triangles for this triangulation. <br>
//! Null if the Triangles are not yet defined. <br>
Standard_Integer NbTriangles() const;
//! Returns true if 2D nodes are associated with 3D nodes for <br>
//! this triangulation. <br>
Standard_Boolean HasUVNodes() const;
//! Returns the table of 3D nodes (3D points) for this triangulation. <br>
Standard_EXPORT const TColgp_Array1OfPnt& Nodes() const;
//! Returns the table of 3D nodes (3D points) for this triangulation. <br>
//! The returned array is <br>
//! shared. Therefore if the table is selected by reference, you <br>
//! can, by simply modifying it, directly modify the data <br>
//! structure of this triangulation. <br>
Standard_EXPORT TColgp_Array1OfPnt& ChangeNodes() ;
//! Returns the table of 2D nodes (2D points) associated with <br>
//! each 3D node of this triangulation. <br>
//! The function HasUVNodes checks if 2D nodes <br>
//! are associated with the 3D nodes of this triangulation. <br>
//! Const reference on the 2d nodes values. <br>
Standard_EXPORT const TColgp_Array1OfPnt2d& UVNodes() const;
//! Returns the table of 2D nodes (2D points) associated with <br>
//! each 3D node of this triangulation. <br>
//! Function ChangeUVNodes shares the returned array. <br>
//! Therefore if the table is selected by reference, <br>
//! you can, by simply modifying it, directly modify the data <br>
//! structure of this triangulation. <br>
Standard_EXPORT TColgp_Array1OfPnt2d& ChangeUVNodes() ;
//! Returns the table of triangles for this triangulation. <br>
Standard_EXPORT const Poly_Array1OfTriangle& Triangles() const;
//! Returns the table of triangles for this triangulation. <br>
//! Function ChangeUVNodes shares the returned array. <br>
//! Therefore if the table is selected by reference, <br>
//! you can, by simply modifying it, directly modify the data <br>
//! structure of this triangulation. <br>
Standard_EXPORT Poly_Array1OfTriangle& ChangeTriangles() ;
//! Sets the table of node normals. <br>
//! raises exception if length of theNormals != 3*NbNodes <br>
Standard_EXPORT void SetNormals(const Handle(TShort_HArray1OfShortReal)& theNormals) ;
Standard_EXPORT const TShort_Array1OfShortReal& Normals() const;
Standard_EXPORT TShort_Array1OfShortReal& ChangeNormals() ;
Standard_EXPORT Standard_Boolean HasNormals() const;
DEFINE_STANDARD_RTTI(Poly_Triangulation)
protected:
private:
Standard_Real myDeflection;
Standard_Integer myNbNodes;
Standard_Integer myNbTriangles;
TColgp_Array1OfPnt myNodes;
Handle_TColgp_HArray1OfPnt2d myUVNodes;
Poly_Array1OfTriangle myTriangles;
Handle_TShort_HArray1OfShortReal myNormals;
};
#include <Poly_Triangulation.lxx>
// other Inline functions and methods (like "C++: function call" methods)
#endif
|