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1 | // Created on: 1995-12-04 |
| 2 | // Created by: Laurent BOURESCHE |
| 3 | // Copyright (c) 1995-1999 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 _GeomFill_TgtField_HeaderFile |
| 18 | #define _GeomFill_TgtField_HeaderFile |
| 19 | |
| 20 | #include <Standard.hxx> |
| 21 | #include <Standard_Type.hxx> |
| 22 | |
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23 | #include <Standard_Transient.hxx> |
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24 | #include <Standard_Boolean.hxx> |
| 25 | #include <Standard_Real.hxx> |
| 26 | class Law_BSpline; |
| 27 | class gp_Vec; |
| 28 | |
| 29 | |
| 30 | class GeomFill_TgtField; |
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31 | DEFINE_STANDARD_HANDLE(GeomFill_TgtField, Standard_Transient) |
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32 | |
| 33 | //! Root class defining the methods we need to make an |
| 34 | //! algorithmic tangents field. |
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35 | class GeomFill_TgtField : public Standard_Transient |
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36 | { |
| 37 | |
| 38 | public: |
| 39 | |
| 40 | |
| 41 | Standard_EXPORT virtual Standard_Boolean IsScalable() const; |
| 42 | |
| 43 | Standard_EXPORT virtual void Scale (const Handle(Law_BSpline)& Func); |
| 44 | |
| 45 | //! Computes the value of the field of tangency at |
| 46 | //! parameter W. |
| 47 | Standard_EXPORT virtual gp_Vec Value (const Standard_Real W) const = 0; |
| 48 | |
| 49 | //! Computes the derivative of the field of tangency at |
| 50 | //! parameter W. |
| 51 | Standard_EXPORT virtual gp_Vec D1 (const Standard_Real W) const = 0; |
| 52 | |
| 53 | //! Computes the value and the derivative of the field of |
| 54 | //! tangency at parameter W. |
| 55 | Standard_EXPORT virtual void D1 (const Standard_Real W, gp_Vec& V, gp_Vec& DV) const = 0; |
| 56 | |
| 57 | |
| 58 | |
| 59 | |
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60 | DEFINE_STANDARD_RTTIEXT(GeomFill_TgtField,Standard_Transient) |
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61 | |
| 62 | protected: |
| 63 | |
| 64 | |
| 65 | |
| 66 | |
| 67 | private: |
| 68 | |
| 69 | |
| 70 | |
| 71 | |
| 72 | }; |
| 73 | |
| 74 | |
| 75 | |
| 76 | |
| 77 | |
| 78 | |
| 79 | |
| 80 | #endif // _GeomFill_TgtField_HeaderFile |
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