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#include <CPnts_MyRootFunction.ixx>
#include <Standard_DomainError.hxx>
#include <math_GaussSingleIntegration.hxx>
void CPnts_MyRootFunction::Init(const CPnts_RealFunction& F,
const Standard_Address D,
const Standard_Integer Order)
{
myFunction.Init(F,D);
myOrder = Order;
}
void CPnts_MyRootFunction::Init(const Standard_Real X0,
const Standard_Real L)
{
myX0 = X0;
myL = L;
myTol = -1; //to supress the tolerance
}
void CPnts_MyRootFunction::Init(const Standard_Real X0,
const Standard_Real L,
const Standard_Real Tol)
{
myX0 = X0;
myL = L;
myTol = Tol;
}
Standard_Boolean CPnts_MyRootFunction::Value(const Standard_Real X,
Standard_Real& F)
{
math_GaussSingleIntegration Length;
if (myTol <= 0) Length = math_GaussSingleIntegration(myFunction, myX0, X, myOrder);
else Length = math_GaussSingleIntegration(myFunction, myX0, X, myOrder, myTol);
if (Length.IsDone()){
F= Length.Value() - myL;
return Standard_True;
}
else {
return Standard_False;
}
}
Standard_Boolean CPnts_MyRootFunction::Derivative(const Standard_Real X,
Standard_Real& Df)
{
return myFunction.Value(X,Df);
}
Standard_Boolean CPnts_MyRootFunction::Values(const Standard_Real X,
Standard_Real& F,
Standard_Real& Df)
{
math_GaussSingleIntegration Length;
if (myTol <= 0) Length = math_GaussSingleIntegration(myFunction, myX0, X, myOrder);
else Length = math_GaussSingleIntegration(myFunction, myX0, X, myOrder, myTol);
if (Length.IsDone()){
F= Length.Value() - myL;
return myFunction.Value(X,Df);
}
else {
return Standard_False;
}
}
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