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126 lines
4.2 KiB
C++
126 lines
4.2 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_NamedFunction_HeaderFile
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#define _Expr_NamedFunction_HeaderFile
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#include <Standard.hxx>
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#include <Standard_Type.hxx>
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#include <TCollection_AsciiString.hxx>
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#include <Expr_Array1OfNamedUnknown.hxx>
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#include <Expr_GeneralFunction.hxx>
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#include <Standard_Integer.hxx>
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#include <Standard_Real.hxx>
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#include <TColStd_Array1OfReal.hxx>
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#include <Standard_Boolean.hxx>
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class Expr_GeneralExpression;
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class Standard_OutOfRange;
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class Standard_DimensionMismatch;
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class Standard_NumericError;
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class Expr_NotEvaluable;
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class TCollection_AsciiString;
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class Expr_NamedUnknown;
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class Expr_GeneralFunction;
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class Expr_NamedFunction;
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DEFINE_STANDARD_HANDLE(Expr_NamedFunction, Expr_GeneralFunction)
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class Expr_NamedFunction : public Expr_GeneralFunction
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{
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public:
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//! Creates a function of given variables <vars> with name
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//! <name> defined by the expression <exp>.
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Standard_EXPORT Expr_NamedFunction(const TCollection_AsciiString& name, const Handle(Expr_GeneralExpression)& exp, const Expr_Array1OfNamedUnknown& vars);
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//! Sets the name <newname> to <me>.
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Standard_EXPORT void SetName (const TCollection_AsciiString& newname);
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//! Returns the name assigned to <me>
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Standard_EXPORT TCollection_AsciiString GetName() const;
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//! Returns the number of variables of <me>.
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Standard_EXPORT Standard_Integer NbOfVariables() const Standard_OVERRIDE;
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//! Returns the variable denoted by <index> in <me>.
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//! Raises OutOfRange if <index> is greater than
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//! NbOfVariables of <me>, or less than or equal to zero.
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Standard_EXPORT Handle(Expr_NamedUnknown) Variable (const Standard_Integer index) const Standard_OVERRIDE;
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//! Computes the value of <me> with the given variables.
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//! Raises DimensionMismatch if Length(vars) is different from
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//! Length(values).
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Standard_EXPORT Standard_Real Evaluate (const Expr_Array1OfNamedUnknown& vars, const TColStd_Array1OfReal& values) const Standard_OVERRIDE;
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//! Returns a copy of <me> with the same form.
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Standard_EXPORT Handle(Expr_GeneralFunction) Copy() const Standard_OVERRIDE;
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//! Returns Derivative of <me> for variable <var>.
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Standard_EXPORT Handle(Expr_GeneralFunction) Derivative (const Handle(Expr_NamedUnknown)& var) const Standard_OVERRIDE;
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//! Returns Derivative of <me> for variable <var> with
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//! degree <deg>.
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Standard_EXPORT Handle(Expr_GeneralFunction) Derivative (const Handle(Expr_NamedUnknown)& var, const Standard_Integer deg) const Standard_OVERRIDE;
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//! Tests if <me> and <func> are similar functions (same
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//! name and same used expression).
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Standard_EXPORT Standard_Boolean IsIdentical (const Handle(Expr_GeneralFunction)& func) const Standard_OVERRIDE;
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//! Tests if <me> is linear on variable on range <index>
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Standard_EXPORT Standard_Boolean IsLinearOnVariable (const Standard_Integer index) const Standard_OVERRIDE;
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Standard_EXPORT TCollection_AsciiString GetStringName() const Standard_OVERRIDE;
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//! Returns equivalent expression of <me>.
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Standard_EXPORT Handle(Expr_GeneralExpression) Expression() const;
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//! Modifies expression of <me>.
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//! Warning: Beware of derivatives. See FunctionDerivative
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Standard_EXPORT void SetExpression (const Handle(Expr_GeneralExpression)& exp);
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DEFINE_STANDARD_RTTIEXT(Expr_NamedFunction,Expr_GeneralFunction)
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protected:
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private:
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TCollection_AsciiString myName;
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Handle(Expr_GeneralExpression) myExp;
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Expr_Array1OfNamedUnknown myVariables;
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};
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#endif // _Expr_NamedFunction_HeaderFile
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