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1 | // Created on: 1991-10-04 |
2 | // Created by: Remi GILET |
3 | // Copyright (c) 1991-1999 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 _GccInt_Bisec_HeaderFile |
18 | #define _GccInt_Bisec_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_Type.hxx> |
22 | |
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23 | #include <Standard_Transient.hxx> |
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24 | #include <GccInt_IType.hxx> |
25 | class Standard_DomainError; |
26 | class gp_Pnt2d; |
27 | class gp_Lin2d; |
28 | class gp_Circ2d; |
29 | class gp_Hypr2d; |
30 | class gp_Parab2d; |
31 | class gp_Elips2d; |
32 | |
33 | |
34 | class GccInt_Bisec; |
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35 | DEFINE_STANDARD_HANDLE(GccInt_Bisec, Standard_Transient) |
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36 | |
37 | //! The deferred class GccInt_Bisec is the root class for |
38 | //! elementary bisecting loci between two simple geometric |
39 | //! objects (i.e. circles, lines or points). |
40 | //! Bisecting loci between two geometric objects are such |
41 | //! that each of their points is at the same distance from the |
42 | //! two geometric objects. It is typically a curve, such as a |
43 | //! line, circle or conic. |
44 | //! Generally there is more than one elementary object |
45 | //! which is the solution to a bisecting loci problem: each |
46 | //! solution is described with one elementary bisecting |
47 | //! locus. For example, the bisectors of two secant straight |
48 | //! lines are two perpendicular straight lines. |
49 | //! The GccInt package provides concrete implementations |
50 | //! of the following elementary derived bisecting loci: |
51 | //! - lines, circles, ellipses, hyperbolas and parabolas, and |
52 | //! - points (not used in this context). |
53 | //! The GccAna package provides numerous algorithms for |
54 | //! computing the bisecting loci between circles, lines or |
55 | //! points, whose solutions are these types of elementary bisecting locus. |
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56 | class GccInt_Bisec : public Standard_Transient |
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57 | { |
58 | |
59 | public: |
60 | |
61 | |
62 | //! Returns the type of bisecting object (line, circle, |
63 | //! parabola, hyperbola, ellipse, point). |
64 | Standard_EXPORT virtual GccInt_IType ArcType() const = 0; |
65 | |
66 | //! Returns the bisecting line when ArcType returns Pnt. |
67 | //! An exception DomainError is raised if ArcType is not a Pnt. |
68 | Standard_EXPORT virtual gp_Pnt2d Point() const; |
69 | |
70 | //! Returns the bisecting line when ArcType returns Lin. |
71 | //! An exception DomainError is raised if ArcType is not a Lin. |
72 | Standard_EXPORT virtual gp_Lin2d Line() const; |
73 | |
74 | //! Returns the bisecting line when ArcType returns Cir. |
75 | //! An exception DomainError is raised if ArcType is not a Cir. |
76 | Standard_EXPORT virtual gp_Circ2d Circle() const; |
77 | |
78 | //! Returns the bisecting line when ArcType returns Hpr. |
79 | //! An exception DomainError is raised if ArcType is not a Hpr. |
80 | Standard_EXPORT virtual gp_Hypr2d Hyperbola() const; |
81 | |
82 | //! Returns the bisecting line when ArcType returns Par. |
83 | //! An exception DomainError is raised if ArcType is not a Par. |
84 | Standard_EXPORT virtual gp_Parab2d Parabola() const; |
85 | |
86 | //! Returns the bisecting line when ArcType returns Ell. |
87 | //! An exception DomainError is raised if ArcType is not an Ell. |
88 | Standard_EXPORT virtual gp_Elips2d Ellipse() const; |
89 | |
90 | |
91 | |
92 | |
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93 | DEFINE_STANDARD_RTTIEXT(GccInt_Bisec,Standard_Transient) |
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94 | |
95 | protected: |
96 | |
97 | |
98 | |
99 | |
100 | private: |
101 | |
102 | |
103 | |
104 | |
105 | }; |
106 | |
107 | |
108 | |
109 | |
110 | |
111 | |
112 | |
113 | #endif // _GccInt_Bisec_HeaderFile |