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1 | // Created on: 1991-01-15 |
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_UnaryMinus_HeaderFile |
18 | #define _Expr_UnaryMinus_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_Type.hxx> |
22 | |
23 | #include <Expr_UnaryExpression.hxx> |
24 | #include <Standard_Boolean.hxx> |
25 | #include <Standard_Integer.hxx> |
26 | #include <Standard_Real.hxx> |
27 | #include <Expr_Array1OfNamedUnknown.hxx> |
28 | #include <TColStd_Array1OfReal.hxx> |
29 | class Standard_NumericError; |
30 | class Standard_OutOfRange; |
31 | class Expr_NotEvaluable; |
32 | class Expr_GeneralExpression; |
33 | class Expr_NamedUnknown; |
34 | class TCollection_AsciiString; |
35 | |
36 | |
37 | class Expr_UnaryMinus; |
38 | DEFINE_STANDARD_HANDLE(Expr_UnaryMinus, Expr_UnaryExpression) |
39 | |
40 | |
41 | class Expr_UnaryMinus : public Expr_UnaryExpression |
42 | { |
43 | |
44 | public: |
45 | |
46 | |
47 | //! Create the unary minus of <exp>. |
48 | Standard_EXPORT Expr_UnaryMinus(const Handle(Expr_GeneralExpression)& exp); |
49 | |
50 | //! Returns a GeneralExpression after a simplification |
51 | //! of the arguments of <me>. |
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52 | Standard_EXPORT Handle(Expr_GeneralExpression) ShallowSimplified() const Standard_OVERRIDE; |
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53 | |
54 | //! Returns a copy of <me> having the same unknowns and functions. |
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55 | Standard_EXPORT Handle(Expr_GeneralExpression) Copy() const Standard_OVERRIDE; |
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56 | |
57 | //! Tests if <me> and <Other> define the same expression. |
58 | //! This method does not include any simplification before |
59 | //! testing. |
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60 | Standard_EXPORT Standard_Boolean IsIdentical (const Handle(Expr_GeneralExpression)& Other) const Standard_OVERRIDE; |
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61 | |
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62 | Standard_EXPORT Standard_Boolean IsLinear() const Standard_OVERRIDE; |
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63 | |
64 | //! Returns the derivative on <X> unknown of <me> |
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65 | Standard_EXPORT Handle(Expr_GeneralExpression) Derivative (const Handle(Expr_NamedUnknown)& X) const Standard_OVERRIDE; |
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66 | |
67 | //! Returns the <N>-th derivative on <X> unknown of <me>. |
68 | //! Raises OutOfRange if <N> <= 0 |
69 | Standard_EXPORT virtual Handle(Expr_GeneralExpression) NDerivative (const Handle(Expr_NamedUnknown)& X, const Standard_Integer N) const Standard_OVERRIDE; |
70 | |
71 | //! Returns the value of <me> (as a Real) by |
72 | //! replacement of <vars> by <vals>. |
73 | //! Raises NotEvaluable if <me> contains NamedUnknown not |
74 | //! in <vars> or NumericError if result cannot be computed. |
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75 | Standard_EXPORT Standard_Real Evaluate (const Expr_Array1OfNamedUnknown& vars, const TColStd_Array1OfReal& vals) const Standard_OVERRIDE; |
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76 | |
77 | //! returns a string representing <me> in a readable way. |
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78 | Standard_EXPORT TCollection_AsciiString String() const Standard_OVERRIDE; |
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79 | |
80 | |
81 | |
82 | |
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83 | DEFINE_STANDARD_RTTIEXT(Expr_UnaryMinus,Expr_UnaryExpression) |
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84 | |
85 | protected: |
86 | |
87 | |
88 | |
89 | |
90 | private: |
91 | |
92 | |
93 | |
94 | |
95 | }; |
96 | |
97 | |
98 | |
99 | |
100 | |
101 | |
102 | |
103 | #endif // _Expr_UnaryMinus_HeaderFile |