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1 | // Created on: 1992-06-29 |
2 | // Created by: Remi GILET |
3 | // Copyright (c) 1992-1999 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 _Geom2dGcc_HeaderFile |
18 | #define _Geom2dGcc_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
24 | class Geom2dGcc_QualifiedCurve; |
25 | class Geom2dAdaptor_Curve; |
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26 | |
27 | |
28 | //! The Geom2dGcc package describes qualified 2D |
29 | //! curves used in the construction of constrained geometric |
30 | //! objects by an algorithm provided by the Geom2dGcc package. |
31 | //! A qualified 2D curve is a curve with a qualifier which |
32 | //! specifies whether the solution of a construction |
33 | //! algorithm using the qualified curve (as an argument): |
34 | //! - encloses the curve, or |
35 | //! - is enclosed by the curve, or |
36 | //! - is built so that both the curve and this solution are external to one another, or |
37 | //! - is undefined (all solutions apply). |
38 | //! These package methods provide simpler functions to construct a qualified curve. |
39 | //! Note: the interior of a curve is defined as the left-hand |
40 | //! side of the curve in relation to its orientation. |
41 | class Geom2dGcc |
42 | { |
43 | public: |
44 | |
45 | DEFINE_STANDARD_ALLOC |
46 | |
47 | |
48 | //! Constructs such a qualified curve that the relative |
49 | //! position of the solution computed by a construction |
50 | //! algorithm using the qualified curve to the circle or line is |
51 | //! not qualified, i.e. all solutions apply. |
52 | //! Warning |
53 | //! Obj is an adapted curve, i.e. an object which is an interface between: |
54 | //! - the services provided by a 2D curve from the package Geom2d, |
55 | //! - and those required on the curve by a computation algorithm. |
56 | //! The adapted curve is created in the following way: |
57 | //! Handle(Geom2d_Curve) mycurve = ... |
58 | //! ; |
59 | //! Geom2dAdaptor_Curve Obj ( mycurve ) |
60 | //! ; |
61 | //! The qualified curve is then constructed with this object: |
62 | //! Geom2dGcc_QualifiedCurve |
63 | //! myQCurve = Geom2dGcc::Unqualified(Obj); |
64 | Standard_EXPORT static Geom2dGcc_QualifiedCurve Unqualified (const Geom2dAdaptor_Curve& Obj); |
65 | |
66 | //! Constructs such a qualified curve that the solution |
67 | //! computed by a construction algorithm using the qualified |
68 | //! curve encloses the curve. |
69 | //! Warning |
70 | //! Obj is an adapted curve, i.e. an object which is an interface between: |
71 | //! - the services provided by a 2D curve from the package Geom2d, |
72 | //! - and those required on the curve by a computation algorithm. |
73 | //! The adapted curve is created in the following way: |
74 | //! Handle(Geom2d_Curve) mycurve = ... |
75 | //! ; |
76 | //! Geom2dAdaptor_Curve Obj ( mycurve ) |
77 | //! ; |
78 | //! The qualified curve is then constructed with this object: |
79 | //! Geom2dGcc_QualifiedCurve |
80 | //! myQCurve = Geom2dGcc::Enclosing(Obj); |
81 | Standard_EXPORT static Geom2dGcc_QualifiedCurve Enclosing (const Geom2dAdaptor_Curve& Obj); |
82 | |
83 | //! Constructs such a qualified curve that the solution |
84 | //! computed by a construction algorithm using the qualified |
85 | //! curve is enclosed by the curve. |
86 | //! Warning |
87 | //! Obj is an adapted curve, i.e. an object which is an interface between: |
88 | //! - the services provided by a 2D curve from the package Geom2d, |
89 | //! - and those required on the curve by a computation algorithm. |
90 | //! The adapted curve is created in the following way: |
91 | //! Handle(Geom2d_Curve) mycurve = ... |
92 | //! ; |
93 | //! Geom2dAdaptor_Curve Obj ( mycurve ) |
94 | //! ; |
95 | //! The qualified curve is then constructed with this object: |
96 | //! Geom2dGcc_QualifiedCurve |
97 | //! myQCurve = Geom2dGcc::Enclosed(Obj); |
98 | Standard_EXPORT static Geom2dGcc_QualifiedCurve Enclosed (const Geom2dAdaptor_Curve& Obj); |
99 | |
100 | //! Constructs such a qualified curve that the solution |
101 | //! computed by a construction algorithm using the qualified |
102 | //! curve and the curve are external to one another. |
103 | //! Warning |
104 | //! Obj is an adapted curve, i.e. an object which is an interface between: |
105 | //! - the services provided by a 2D curve from the package Geom2d, |
106 | //! - and those required on the curve by a computation algorithm. |
107 | //! The adapted curve is created in the following way: |
108 | //! Handle(Geom2d_Curve) mycurve = ... |
109 | //! ; |
110 | //! Geom2dAdaptor_Curve Obj ( mycurve ) |
111 | //! ; |
112 | //! The qualified curve is then constructed with this object: |
113 | //! Geom2dGcc_QualifiedCurve |
114 | //! myQCurve = Geom2dGcc::Outside(Obj); |
115 | Standard_EXPORT static Geom2dGcc_QualifiedCurve Outside (const Geom2dAdaptor_Curve& Obj); |
116 | |
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117 | }; |
118 | |
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119 | #endif // _Geom2dGcc_HeaderFile |