include/opencascade/ChFi3d_SearchSing.hxx

0001 // Created on: 1997-03-28
0002 // Created by: Philippe MANGIN
0003 // Copyright (c) 1997-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _ChFi3d_SearchSing_HeaderFile
0018 #define _ChFi3d_SearchSing_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <math_FunctionWithDerivative.hxx>
0025 #include <Standard_Boolean.hxx>
0026 #include <Standard_Real.hxx>
0027 class Geom_Curve;
0028
0029
0030 //! Searches   singularities on fillet.
0031 //! F(t) = (C1(t) - C2(t)).(C1'(t) - C2'(t));
0032 class ChFi3d_SearchSing  : public math_FunctionWithDerivative
0033 {
0034 public:
0035
0036   DEFINE_STANDARD_ALLOC
0037
0038
0039   Standard_EXPORT ChFi3d_SearchSing(const Handle(Geom_Curve)& C1, const Handle(Geom_Curve)& C2);
0040
0041   //! computes the value of the function <F> for the
0042   //! variable <X>.
0043   //! returns True if the computation was done successfully,
0044   //! False otherwise.
0045   Standard_EXPORT Standard_Boolean Value (const Standard_Real X, Standard_Real& F);
0046
0047   //! computes the derivative <D> of the function
0048   //! for the variable <X>.
0049   //! Returns True if the calculation were successfully done,
0050   //! False otherwise.
0051   Standard_EXPORT Standard_Boolean Derivative (const Standard_Real X, Standard_Real& D);
0052
0053   //! computes the value <F> and the derivative <D> of the
0054   //! function for the variable <X>.
0055   //! Returns True if the calculation were successfully done,
0056   //! False otherwise.
0057   Standard_EXPORT Standard_Boolean Values (const Standard_Real X, Standard_Real& F, Standard_Real& D);
0058
0059
0060
0061
0062 protected:
0063
0064
0065
0066
0067
0068 private:
0069
0070
0071
0072   Handle(Geom_Curve) myC1;
0073   Handle(Geom_Curve) myC2;
0074
0075
0076 };
0077
0078
0079
0080
0081
0082
0083
0084 #endif // _ChFi3d_SearchSing_HeaderFile