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98 lines
2.8 KiB
C++
98 lines
2.8 KiB
C++
// Created on: 1991-01-14
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// Created by: Arnaud BOUZY
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// Copyright (c) 1991-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _Expr_Absolute_HeaderFile
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#define _Expr_Absolute_HeaderFile
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#include <Standard.hxx>
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#include <Standard_Type.hxx>
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#include <Expr_UnaryExpression.hxx>
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#include <Standard_Boolean.hxx>
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#include <Standard_Real.hxx>
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#include <Expr_Array1OfNamedUnknown.hxx>
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#include <TColStd_Array1OfReal.hxx>
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class Standard_NumericError;
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class Expr_NotEvaluable;
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class Expr_GeneralExpression;
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class Expr_NamedUnknown;
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class TCollection_AsciiString;
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class Expr_Absolute;
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DEFINE_STANDARD_HANDLE(Expr_Absolute, Expr_UnaryExpression)
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class Expr_Absolute : public Expr_UnaryExpression
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{
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public:
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//! Creates the Abs of <exp>
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Standard_EXPORT Expr_Absolute(const Handle(Expr_GeneralExpression)& exp);
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//! Returns a GeneralExpression after a simplification
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//! of the arguments of <me>.
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Standard_EXPORT Handle(Expr_GeneralExpression) ShallowSimplified() const Standard_OVERRIDE;
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//! Returns a copy of <me> having the same unknowns and functions.
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Standard_EXPORT Handle(Expr_GeneralExpression) Copy() const Standard_OVERRIDE;
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//! Tests if <me> and <Other> define the same expression.
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//! This method does not include any simplification before
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//! testing.
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Standard_EXPORT Standard_Boolean IsIdentical (const Handle(Expr_GeneralExpression)& Other) const Standard_OVERRIDE;
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Standard_EXPORT Standard_Boolean IsLinear() const Standard_OVERRIDE;
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//! Returns the derivative on <X> unknown of <me>
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Standard_EXPORT Handle(Expr_GeneralExpression) Derivative (const Handle(Expr_NamedUnknown)& X) const Standard_OVERRIDE;
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//! Returns the value of <me> (as a Real) by
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//! replacement of <vars> by <vals>.
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//! Raises NotEvaluable if <me> contains NamedUnknown not
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//! in <vars> or NumericError if result cannot be computed.
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Standard_EXPORT Standard_Real Evaluate (const Expr_Array1OfNamedUnknown& vars, const TColStd_Array1OfReal& vals) const Standard_OVERRIDE;
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//! returns a string representing <me> in a readable way.
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Standard_EXPORT TCollection_AsciiString String() const Standard_OVERRIDE;
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DEFINE_STANDARD_RTTIEXT(Expr_Absolute,Expr_UnaryExpression)
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protected:
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private:
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};
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#endif // _Expr_Absolute_HeaderFile
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