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1 | // Created on: 1991-01-14 |
2 | // Created by: Arnaud BOUZY |
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 _Expr_SystemRelation_HeaderFile |
18 | #define _Expr_SystemRelation_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_Type.hxx> |
22 | |
23 | #include <Expr_SequenceOfGeneralRelation.hxx> |
24 | #include <Expr_GeneralRelation.hxx> |
25 | #include <Standard_Boolean.hxx> |
26 | #include <Standard_Integer.hxx> |
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27 | class Expr_GeneralExpression; |
28 | class Expr_NamedUnknown; |
29 | class TCollection_AsciiString; |
30 | |
31 | |
32 | class Expr_SystemRelation; |
33 | DEFINE_STANDARD_HANDLE(Expr_SystemRelation, Expr_GeneralRelation) |
34 | |
35 | |
36 | class Expr_SystemRelation : public Expr_GeneralRelation |
37 | { |
38 | |
39 | public: |
40 | |
41 | |
42 | //! Creates a system with one relation |
43 | Standard_EXPORT Expr_SystemRelation(const Handle(Expr_GeneralRelation)& relation); |
44 | |
45 | //! Appends <relation> in the list of components of <me>. |
46 | Standard_EXPORT void Add (const Handle(Expr_GeneralRelation)& relation); |
47 | |
48 | Standard_EXPORT void Remove (const Handle(Expr_GeneralRelation)& relation); |
49 | |
50 | //! Tests if <me> is linear between its NamedUnknowns. |
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51 | Standard_EXPORT Standard_Boolean IsLinear() const Standard_OVERRIDE; |
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52 | |
53 | //! Returns the number of relations contained in <me>. |
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54 | Standard_EXPORT Standard_Integer NbOfSubRelations() const Standard_OVERRIDE; |
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55 | |
56 | //! Returns the number of SingleRelations contained in |
57 | //! <me>. |
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58 | Standard_EXPORT Standard_Integer NbOfSingleRelations() const Standard_OVERRIDE; |
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59 | |
60 | //! Returns the relation denoted by <index> in <me>. |
61 | //! An exception is raised if <index> is out of range. |
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62 | Standard_EXPORT Handle(Expr_GeneralRelation) SubRelation (const Standard_Integer index) const Standard_OVERRIDE; |
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63 | |
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64 | Standard_EXPORT Standard_Boolean IsSatisfied() const Standard_OVERRIDE; |
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65 | |
66 | //! Returns a GeneralRelation after replacement of |
67 | //! NamedUnknowns by an associated expression, and after |
68 | //! values computation. |
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69 | Standard_EXPORT Handle(Expr_GeneralRelation) Simplified() const Standard_OVERRIDE; |
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70 | |
71 | //! Replaces NamedUnknowns by associated expressions, |
72 | //! and computes values in <me>. |
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73 | Standard_EXPORT void Simplify() Standard_OVERRIDE; |
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74 | |
75 | //! Returns a copy of <me> having the same unknowns and functions. |
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76 | Standard_EXPORT Handle(Expr_GeneralRelation) Copy() const Standard_OVERRIDE; |
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77 | |
78 | //! Tests if <me> contains <exp>. |
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79 | Standard_EXPORT Standard_Boolean Contains (const Handle(Expr_GeneralExpression)& exp) const Standard_OVERRIDE; |
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80 | |
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81 | //! Replaces all occurrences of <var> with <with> in <me>. |
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82 | Standard_EXPORT void Replace (const Handle(Expr_NamedUnknown)& var, const Handle(Expr_GeneralExpression)& with) Standard_OVERRIDE; |
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83 | |
84 | //! returns a string representing <me> in a readable way. |
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85 | Standard_EXPORT TCollection_AsciiString String() const Standard_OVERRIDE; |
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86 | |
87 | |
88 | |
89 | |
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90 | DEFINE_STANDARD_RTTIEXT(Expr_SystemRelation,Expr_GeneralRelation) |
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91 | |
92 | protected: |
93 | |
94 | |
95 | |
96 | |
97 | private: |
98 | |
99 | |
100 | Expr_SequenceOfGeneralRelation myRelations; |
101 | |
102 | |
103 | }; |
104 | |
105 | |
106 | |
107 | |
108 | |
109 | |
110 | |
111 | #endif // _Expr_SystemRelation_HeaderFile |