| 42cf5bc1 |
1 | // Created on: 1994-09-02 |
| 2 | // Created by: Yves FRICAUD |
| 3 | // Copyright (c) 1994-1999 Matra Datavision |
| 4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
| 5 | // |
| 6 | // This file is part of Open CASCADE Technology software library. |
| 7 | // |
| 8 | // This library is free software; you can redistribute it and/or modify it under |
| 9 | // the terms of the GNU Lesser General Public License version 2.1 as published |
| 10 | // by the Free Software Foundation, with special exception defined in the file |
| 11 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
| 12 | // distribution for complete text of the license and disclaimer of any warranty. |
| 13 | // |
| 14 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 15 | // commercial license or contractual agreement. |
| 16 | |
| 17 | #ifndef _Geom2dLProp_FuncCurExt_HeaderFile |
| 18 | #define _Geom2dLProp_FuncCurExt_HeaderFile |
| 19 | |
| 20 | #include <Standard.hxx> |
| 21 | #include <Standard_DefineAlloc.hxx> |
| 22 | #include <Standard_Handle.hxx> |
| 23 | |
| 24 | #include <Standard_Real.hxx> |
| 25 | #include <math_FunctionWithDerivative.hxx> |
| 26 | #include <Standard_Boolean.hxx> |
| 27 | class Geom2d_Curve; |
| 28 | |
| 29 | |
| 30 | //! Function used to find the extremas of curvature in 2d. |
| 31 | class Geom2dLProp_FuncCurExt : public math_FunctionWithDerivative |
| 32 | { |
| 33 | public: |
| 34 | |
| 35 | DEFINE_STANDARD_ALLOC |
| 36 | |
| 37 | |
| 38 | Standard_EXPORT Geom2dLProp_FuncCurExt(const Handle(Geom2d_Curve)& C, const Standard_Real Tol); |
| 39 | |
| 40 | //! Returns the value for the variable <X>. |
| 41 | Standard_EXPORT Standard_Boolean Value (const Standard_Real X, Standard_Real& F); |
| 42 | |
| 43 | //! Returns the derivative for the variable <X>. |
| 44 | Standard_EXPORT Standard_Boolean Derivative (const Standard_Real X, Standard_Real& D); |
| 45 | |
| 46 | //! Returns the value of the function and the derivative |
| 47 | //! for the variable <X>. |
| 48 | Standard_EXPORT Standard_Boolean Values (const Standard_Real X, Standard_Real& F, Standard_Real& D); |
| 49 | |
| 50 | //! True if Param corresponds to a minus |
| 51 | //! of the radius of curvature. |
| 52 | Standard_EXPORT Standard_Boolean IsMinKC (const Standard_Real Param) const; |
| 53 | |
| 54 | |
| 55 | |
| 56 | |
| 57 | protected: |
| 58 | |
| 59 | |
| 60 | |
| 61 | |
| 62 | |
| 63 | private: |
| 64 | |
| 65 | |
| 66 | |
| 67 | Handle(Geom2d_Curve) theCurve; |
| 68 | Standard_Real epsX; |
| 69 | |
| 70 | |
| 71 | }; |
| 72 | |
| 73 | |
| 74 | |
| 75 | |
| 76 | |
| 77 | |
| 78 | |
| 79 | #endif // _Geom2dLProp_FuncCurExt_HeaderFile |
projects / occt.git / blame