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1 | // Created on: 1995-03-07 |
2 | // Created by: Laurent PAINNOT |
3 | // Copyright (c) 1995-1999 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 _Poly_Polygon3D_HeaderFile |
18 | #define _Poly_Polygon3D_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_Type.hxx> |
22 | |
23 | #include <Standard_Real.hxx> |
24 | #include <TColgp_Array1OfPnt.hxx> |
25 | #include <TColStd_HArray1OfReal.hxx> |
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26 | #include <Standard_Transient.hxx> |
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27 | #include <TColStd_Array1OfReal.hxx> |
28 | #include <Standard_Integer.hxx> |
29 | #include <Standard_Boolean.hxx> |
30 | class Standard_NullObject; |
31 | |
32 | |
33 | class Poly_Polygon3D; |
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34 | DEFINE_STANDARD_HANDLE(Poly_Polygon3D, Standard_Transient) |
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35 | |
36 | //! This class Provides a polygon in 3D space. It is generally an approximate representation of a curve. |
37 | //! A Polygon3D is defined by a table of nodes. Each node is |
38 | //! a 3D point. If the polygon is closed, the point of closure is |
39 | //! repeated at the end of the table of nodes. |
40 | //! If the polygon is an approximate representation of a curve, |
41 | //! you can associate with each of its nodes the value of the |
42 | //! parameter of the corresponding point on the curve. |
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43 | class Poly_Polygon3D : public Standard_Transient |
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44 | { |
45 | |
46 | public: |
47 | |
48 | |
49 | //! onstructs a 3D polygon defined by the table of points, Nodes. |
50 | Standard_EXPORT Poly_Polygon3D(const TColgp_Array1OfPnt& Nodes); |
51 | |
52 | //! Constructs a 3D polygon defined by |
53 | //! the table of points, Nodes, and the parallel table of |
54 | //! parameters, Parameters, where each value of the table |
55 | //! Parameters is the parameter of the corresponding point |
56 | //! on the curve approximated by the constructed polygon. |
57 | //! Warning |
58 | //! Both the Nodes and Parameters tables must have the |
59 | //! same bounds. This property is not checked at construction time. |
60 | Standard_EXPORT Poly_Polygon3D(const TColgp_Array1OfPnt& Nodes, const TColStd_Array1OfReal& Parameters); |
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61 | |
62 | //! Creates a copy of current polygon |
63 | Standard_EXPORT virtual Handle(Poly_Polygon3D) Copy() const; |
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64 | |
65 | //! Returns the deflection of this polygon |
66 | Standard_EXPORT Standard_Real Deflection() const; |
67 | |
68 | //! Sets the deflection of this polygon to D. See more on deflection in Poly_Polygon2D |
69 | Standard_EXPORT void Deflection (const Standard_Real D); |
70 | |
71 | //! Returns the number of nodes in this polygon. |
72 | //! Note: If the polygon is closed, the point of closure is |
73 | //! repeated at the end of its table of nodes. Thus, on a closed |
74 | //! triangle the function NbNodes returns 4. |
75 | Standard_Integer NbNodes() const; |
76 | |
77 | //! Returns the table of nodes for this polygon. |
78 | Standard_EXPORT const TColgp_Array1OfPnt& Nodes() const; |
79 | |
80 | //! Returns the table of the parameters associated with each node in this polygon. |
81 | //! HasParameters function checks if parameters are associated with the nodes of this polygon. |
82 | Standard_EXPORT Standard_Boolean HasParameters() const; |
83 | |
84 | //! Returns true if parameters are associated with the nodes |
85 | //! in this polygon. |
86 | Standard_EXPORT const TColStd_Array1OfReal& Parameters() const; |
87 | |
88 | //! Returns the table of the parameters associated with each node in this polygon. |
89 | //! ChangeParameters function returnes the array as shared. Therefore if the table is selected by |
90 | //! reference you can, by simply modifying it, directly modify |
91 | //! the data structure of this polygon. |
92 | Standard_EXPORT TColStd_Array1OfReal& ChangeParameters() const; |
93 | |
94 | |
95 | |
96 | |
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97 | DEFINE_STANDARD_RTTIEXT(Poly_Polygon3D,Standard_Transient) |
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98 | |
99 | protected: |
100 | |
101 | |
102 | |
103 | |
104 | private: |
105 | |
106 | |
107 | Standard_Real myDeflection; |
108 | TColgp_Array1OfPnt myNodes; |
109 | Handle(TColStd_HArray1OfReal) myParameters; |
110 | |
111 | |
112 | }; |
113 | |
114 | |
115 | #include <Poly_Polygon3D.lxx> |
116 | |
117 | |
118 | |
119 | |
120 | |
121 | #endif // _Poly_Polygon3D_HeaderFile |