| 42cf5bc1 |
1 | // Created on: 1997-10-22 |
| 2 | // Created by: Philippe MANGIN / Sergey SOKOLOV |
| 3 | // Copyright (c) 1997-1999 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 _PLib_Base_HeaderFile |
| 18 | #define _PLib_Base_HeaderFile |
| 19 | |
| 20 | #include <Standard.hxx> |
| 21 | #include <Standard_Type.hxx> |
| 22 | |
| 23 | #include <MMgt_TShared.hxx> |
| 24 | #include <Standard_Integer.hxx> |
| 25 | #include <TColStd_Array1OfReal.hxx> |
| 26 | #include <Standard_Real.hxx> |
| 27 | |
| 28 | |
| 29 | class PLib_Base; |
| 30 | DEFINE_STANDARD_HANDLE(PLib_Base, MMgt_TShared) |
| 31 | |
| 32 | //! To work with different polynomial's Bases |
| 33 | class PLib_Base : public MMgt_TShared |
| 34 | { |
| 35 | |
| 36 | public: |
| 37 | |
| 38 | |
| 39 | |
| 40 | //! Convert the polynomial P(t) in the canonical base. |
| 41 | Standard_EXPORT virtual void ToCoefficients (const Standard_Integer Dimension, const Standard_Integer Degree, const TColStd_Array1OfReal& CoeffinBase, TColStd_Array1OfReal& Coefficients) const = 0; |
| 42 | |
| 43 | //! Compute the values of the basis functions in u |
| 44 | Standard_EXPORT virtual void D0 (const Standard_Real U, TColStd_Array1OfReal& BasisValue) = 0; |
| 45 | |
| 46 | //! Compute the values and the derivatives values of |
| 47 | //! the basis functions in u |
| 48 | Standard_EXPORT virtual void D1 (const Standard_Real U, TColStd_Array1OfReal& BasisValue, TColStd_Array1OfReal& BasisD1) = 0; |
| 49 | |
| 50 | //! Compute the values and the derivatives values of |
| 51 | //! the basis functions in u |
| 52 | Standard_EXPORT virtual void D2 (const Standard_Real U, TColStd_Array1OfReal& BasisValue, TColStd_Array1OfReal& BasisD1, TColStd_Array1OfReal& BasisD2) = 0; |
| 53 | |
| 54 | //! Compute the values and the derivatives values of |
| 55 | //! the basis functions in u |
| 56 | Standard_EXPORT virtual void D3 (const Standard_Real U, TColStd_Array1OfReal& BasisValue, TColStd_Array1OfReal& BasisD1, TColStd_Array1OfReal& BasisD2, TColStd_Array1OfReal& BasisD3) = 0; |
| 57 | |
| 58 | //! returns WorkDegree |
| 59 | Standard_EXPORT virtual Standard_Integer WorkDegree() const = 0; |
| 60 | |
| 61 | |
| 62 | //! Compute NewDegree <= MaxDegree so that MaxError is lower |
| 63 | //! than Tol. |
| 64 | //! MaxError can be greater than Tol if it is not possible |
| 65 | //! to find a NewDegree <= MaxDegree. |
| 66 | //! In this case NewDegree = MaxDegree |
| 67 | Standard_EXPORT virtual void ReduceDegree (const Standard_Integer Dimension, const Standard_Integer MaxDegree, const Standard_Real Tol, Standard_Real& BaseCoeff, Standard_Integer& NewDegree, Standard_Real& MaxError) const = 0; |
| 68 | |
| 69 | |
| 70 | |
| 71 | |
| 72 | DEFINE_STANDARD_RTTI(PLib_Base,MMgt_TShared) |
| 73 | |
| 74 | protected: |
| 75 | |
| 76 | |
| 77 | |
| 78 | |
| 79 | private: |
| 80 | |
| 81 | |
| 82 | |
| 83 | |
| 84 | }; |
| 85 | |
| 86 | |
| 87 | |
| 88 | |
| 89 | |
| 90 | |
| 91 | |
| 92 | #endif // _PLib_Base_HeaderFile |
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