mirror of
https://git.dev.opencascade.org/repos/occt.git
synced 2025-04-05 18:16:23 +03:00
94 lines
2.9 KiB
C++
94 lines
2.9 KiB
C++
// Created on: 1991-05-27
|
|
// Created by: Arnaud BOUZY
|
|
// Copyright (c) 1991-1999 Matra Datavision
|
|
// Copyright (c) 1999-2014 OPEN CASCADE SAS
|
|
//
|
|
// This file is part of Open CASCADE Technology software library.
|
|
//
|
|
// This library is free software; you can redistribute it and/or modify it under
|
|
// the terms of the GNU Lesser General Public License version 2.1 as published
|
|
// by the Free Software Foundation, with special exception defined in the file
|
|
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
|
|
// distribution for complete text of the license and disclaimer of any warranty.
|
|
//
|
|
// Alternatively, this file may be used under the terms of Open CASCADE
|
|
// commercial license or contractual agreement.
|
|
|
|
|
|
#include <Expr.hxx>
|
|
#include <Expr_Exponential.hxx>
|
|
#include <Expr_GeneralExpression.hxx>
|
|
#include <Expr_LogOfe.hxx>
|
|
#include <Expr_NamedUnknown.hxx>
|
|
#include <Expr_NotEvaluable.hxx>
|
|
#include <Expr_NumericValue.hxx>
|
|
#include <Expr_Operators.hxx>
|
|
#include <Expr_Product.hxx>
|
|
#include <Standard_NumericError.hxx>
|
|
#include <Standard_Type.hxx>
|
|
#include <TCollection_AsciiString.hxx>
|
|
|
|
IMPLEMENT_STANDARD_RTTIEXT(Expr_Exponential,Expr_UnaryExpression)
|
|
|
|
Expr_Exponential::Expr_Exponential(const Handle(Expr_GeneralExpression)& exp)
|
|
{
|
|
CreateOperand(exp);
|
|
}
|
|
|
|
Handle(Expr_GeneralExpression) Expr_Exponential::ShallowSimplified () const
|
|
{
|
|
Handle(Expr_GeneralExpression) myexp = Operand();
|
|
if (myexp->IsKind(STANDARD_TYPE(Expr_NumericValue))) {
|
|
Handle(Expr_NumericValue) myNVexp = Handle(Expr_NumericValue)::DownCast(myexp);
|
|
return new Expr_NumericValue(Exp(myNVexp->GetValue()));
|
|
}
|
|
if (myexp->IsKind(STANDARD_TYPE(Expr_LogOfe))) {
|
|
return myexp->SubExpression(1);
|
|
}
|
|
Handle(Expr_Exponential) me = this;
|
|
return me;
|
|
}
|
|
|
|
Handle(Expr_GeneralExpression) Expr_Exponential::Copy () const
|
|
{
|
|
return new Expr_Exponential(Expr::CopyShare(Operand()));
|
|
}
|
|
|
|
Standard_Boolean Expr_Exponential::IsIdentical (const Handle(Expr_GeneralExpression)& Other) const
|
|
{
|
|
if (Other->IsKind(STANDARD_TYPE(Expr_Exponential))) {
|
|
Handle(Expr_GeneralExpression) myexp = Operand();
|
|
return myexp->IsIdentical(Other->SubExpression(1));
|
|
}
|
|
return Standard_False;
|
|
}
|
|
|
|
Standard_Boolean Expr_Exponential::IsLinear () const
|
|
{
|
|
return !ContainsUnknowns();
|
|
}
|
|
|
|
Handle(Expr_GeneralExpression) Expr_Exponential::Derivative (const Handle(Expr_NamedUnknown)& X) const
|
|
{
|
|
if (!Contains(X)) {
|
|
return new Expr_NumericValue(0.0);
|
|
}
|
|
Handle(Expr_GeneralExpression) myexp = Operand();
|
|
Handle(Expr_GeneralExpression) myder = myexp->Derivative(X);
|
|
Handle(Expr_Product) resu = Expr::CopyShare(this) * myder;
|
|
return resu->ShallowSimplified();
|
|
}
|
|
|
|
Standard_Real Expr_Exponential::Evaluate(const Expr_Array1OfNamedUnknown& vars, const TColStd_Array1OfReal& vals) const
|
|
{
|
|
return ::Exp(Operand()->Evaluate(vars,vals));
|
|
}
|
|
|
|
TCollection_AsciiString Expr_Exponential::String() const
|
|
{
|
|
TCollection_AsciiString str("Exp(");
|
|
str += Operand()->String();
|
|
str += ")";
|
|
return str;
|
|
}
|