| 42cf5bc1 |
1 | // Created on: 1994-02-24 |
| 2 | // Created by: Laurent BOURESCHE |
| 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 _BRepLProp_CurveTool_HeaderFile |
| 18 | #define _BRepLProp_CurveTool_HeaderFile |
| 19 | |
| 20 | #include <Standard.hxx> |
| 21 | #include <Standard_DefineAlloc.hxx> |
| 22 | #include <Standard_Handle.hxx> |
| 23 | |
| 24 | #include <Standard_Real.hxx> |
| 25 | #include <Standard_Integer.hxx> |
| 26 | class BRepAdaptor_Curve; |
| 27 | class gp_Pnt; |
| 28 | class gp_Vec; |
| 29 | |
| 30 | |
| 31 | |
| 32 | class BRepLProp_CurveTool |
| 33 | { |
| 34 | public: |
| 35 | |
| 36 | DEFINE_STANDARD_ALLOC |
| 37 | |
| 38 | |
| 39 | //! Computes the point <P> of parameter <U> on the curve <C>. |
| 40 | Standard_EXPORT static void Value (const BRepAdaptor_Curve& C, const Standard_Real U, gp_Pnt& P); |
| 41 | |
| 42 | //! Computes the point <P> and first derivative <V1> of |
| 43 | //! parameter <U> on the curve <C>. |
| 44 | Standard_EXPORT static void D1 (const BRepAdaptor_Curve& C, const Standard_Real U, gp_Pnt& P, gp_Vec& V1); |
| 45 | |
| 46 | //! Computes the point <P>, the first derivative <V1> and second |
| 47 | //! derivative <V2> of parameter <U> on the curve <C>. |
| 48 | Standard_EXPORT static void D2 (const BRepAdaptor_Curve& C, const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2); |
| 49 | |
| 50 | //! Computes the point <P>, the first derivative <V1>, the |
| 51 | //! second derivative <V2> and third derivative <V3> of |
| 52 | //! parameter <U> on the curve <C>. |
| 53 | Standard_EXPORT static void D3 (const BRepAdaptor_Curve& C, const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2, gp_Vec& V3); |
| 54 | |
| 55 | //! returns the order of continuity of the curve <C>. |
| 56 | //! returns 1 : first derivative only is computable |
| 57 | //! returns 2 : first and second derivative only are computable. |
| 58 | //! returns 3 : first, second and third are computable. |
| 59 | Standard_EXPORT static Standard_Integer Continuity (const BRepAdaptor_Curve& C); |
| 60 | |
| 61 | //! returns the first parameter bound of the curve. |
| 62 | Standard_EXPORT static Standard_Real FirstParameter (const BRepAdaptor_Curve& C); |
| 63 | |
| 64 | //! returns the last parameter bound of the curve. |
| 65 | //! FirstParameter must be less than LastParamenter. |
| 66 | Standard_EXPORT static Standard_Real LastParameter (const BRepAdaptor_Curve& C); |
| 67 | |
| 68 | |
| 69 | |
| 70 | |
| 71 | protected: |
| 72 | |
| 73 | |
| 74 | |
| 75 | |
| 76 | |
| 77 | private: |
| 78 | |
| 79 | |
| 80 | |
| 81 | |
| 82 | |
| 83 | }; |
| 84 | |
| 85 | |
| 86 | |
| 87 | |
| 88 | |
| 89 | |
| 90 | |
| 91 | #endif // _BRepLProp_CurveTool_HeaderFile |
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