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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_BinaryFunction_HeaderFile |
18 | #define _Expr_BinaryFunction_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_Type.hxx> |
22 | |
23 | #include <Expr_BinaryExpression.hxx> |
24 | #include <Standard_Boolean.hxx> |
25 | #include <Standard_Real.hxx> |
26 | #include <Expr_Array1OfNamedUnknown.hxx> |
27 | #include <TColStd_Array1OfReal.hxx> |
28 | class Expr_GeneralFunction; |
29 | class Expr_InvalidFunction; |
30 | class Standard_NumericError; |
31 | class Expr_NotEvaluable; |
32 | class Expr_GeneralExpression; |
33 | class Expr_NamedUnknown; |
34 | class TCollection_AsciiString; |
35 | |
36 | |
37 | class Expr_BinaryFunction; |
38 | DEFINE_STANDARD_HANDLE(Expr_BinaryFunction, Expr_BinaryExpression) |
39 | |
40 | //! Defines the use of a binary function in an expression |
41 | //! with given arguments. |
42 | class Expr_BinaryFunction : public Expr_BinaryExpression |
43 | { |
44 | |
45 | public: |
46 | |
47 | |
48 | //! Creates <me> as <func> (<exp1>,<exp2>). |
49 | //! Raises exception if <func> is not binary. |
50 | Standard_EXPORT Expr_BinaryFunction(const Handle(Expr_GeneralFunction)& func, const Handle(Expr_GeneralExpression)& exp1, const Handle(Expr_GeneralExpression)& exp2); |
51 | |
52 | //! Returns the function defining <me>. |
53 | Standard_EXPORT Handle(Expr_GeneralFunction) Function() const; |
54 | |
55 | //! Returns a GeneralExpression after a simplification |
56 | //! of the arguments of <me>. |
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57 | Standard_EXPORT Handle(Expr_GeneralExpression) ShallowSimplified() const Standard_OVERRIDE; |
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58 | |
59 | //! Returns a copy of <me> having the same unknowns and functions. |
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60 | Standard_EXPORT Handle(Expr_GeneralExpression) Copy() const Standard_OVERRIDE; |
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61 | |
62 | //! Tests if <me> and <Other> define the same expression. |
63 | //! This method does not include any simplification before |
64 | //! testing. |
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65 | Standard_EXPORT Standard_Boolean IsIdentical (const Handle(Expr_GeneralExpression)& Other) const Standard_OVERRIDE; |
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66 | |
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67 | Standard_EXPORT Standard_Boolean IsLinear() const Standard_OVERRIDE; |
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68 | |
69 | //! Returns the derivative on <X> unknown of <me> |
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70 | Standard_EXPORT Handle(Expr_GeneralExpression) Derivative (const Handle(Expr_NamedUnknown)& X) const Standard_OVERRIDE; |
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71 | |
72 | //! Returns the value of <me> (as a Real) by |
73 | //! replacement of <vars> by <vals>. |
74 | //! Raises NotEvaluable if <me> contains NamedUnknown not |
75 | //! in <vars> or NumericError if result cannot be computed. |
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76 | Standard_EXPORT Standard_Real Evaluate (const Expr_Array1OfNamedUnknown& vars, const TColStd_Array1OfReal& vals) const Standard_OVERRIDE; |
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77 | |
78 | //! returns a string representing <me> in a readable way. |
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79 | Standard_EXPORT TCollection_AsciiString String() const Standard_OVERRIDE; |
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80 | |
81 | |
82 | |
83 | |
84 | DEFINE_STANDARD_RTTI(Expr_BinaryFunction,Expr_BinaryExpression) |
85 | |
86 | protected: |
87 | |
88 | |
89 | |
90 | |
91 | private: |
92 | |
93 | |
94 | Handle(Expr_GeneralFunction) myFunction; |
95 | |
96 | |
97 | }; |
98 | |
99 | |
100 | |
101 | |
102 | |
103 | |
104 | |
105 | #endif // _Expr_BinaryFunction_HeaderFile |