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1 | // Created on: 1993-11-09 |
| 2 | // Created by: Laurent BOURESCHE |
| 3 | // Copyright (c) 1993-1999 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 _ChFi3d_HeaderFile |
| 18 | #define _ChFi3d_HeaderFile |
| 19 | |
| 20 | #include <Standard.hxx> |
| 21 | #include <Standard_DefineAlloc.hxx> |
| 22 | #include <Standard_Handle.hxx> |
| 23 | |
| 24 | #include <Standard_Integer.hxx> |
| 25 | #include <TopAbs_Orientation.hxx> |
| 26 | #include <Standard_Boolean.hxx> |
| 27 | class BRepAdaptor_Surface; |
| 28 | class TopoDS_Edge; |
| 29 | class ChFi3d_Builder; |
| 30 | class ChFi3d_ChBuilder; |
| 31 | class ChFi3d_FilBuilder; |
| 32 | class ChFi3d_SearchSing; |
| 33 | |
| 34 | |
| 35 | //! creation of spatial fillets on a solid. |
| 36 | class ChFi3d |
| 37 | { |
| 38 | public: |
| 39 | |
| 40 | DEFINE_STANDARD_ALLOC |
| 41 | |
| 42 | |
| 43 | //! Returns Reversed in Or1 and(or) Or2 if |
| 44 | //! the concave edge defined by the interior of faces F1 and F2, |
| 45 | //! in the neighbourhood of their boundary E is of the edge opposite to the |
| 46 | //! normal of their surface support. The orientation of |
| 47 | //! faces is not taken into consideration in the calculation. The |
| 48 | //! function returns 0 if the calculation fails (tangence), |
| 49 | //! if not, it returns the number of choice of the fillet |
| 50 | //! or chamfer corresponding to the orientations calculated |
| 51 | //! and to the tangent to the guide line read in E. |
| 52 | Standard_EXPORT static Standard_Integer ConcaveSide (const BRepAdaptor_Surface& S1, const BRepAdaptor_Surface& S2, const TopoDS_Edge& E, TopAbs_Orientation& Or1, TopAbs_Orientation& Or2); |
| 53 | |
| 54 | //! Same as ConcaveSide, but the orientations are |
| 55 | //! logically deduced from the result of the call of |
| 56 | //! ConcaveSide on the first pair of faces of the fillet or |
| 57 | //! chamnfer. |
| 58 | Standard_EXPORT static Standard_Integer NextSide (TopAbs_Orientation& Or1, TopAbs_Orientation& Or2, const TopAbs_Orientation OrSave1, const TopAbs_Orientation OrSave2, const Standard_Integer ChoixSauv); |
| 59 | |
| 60 | //! Same as the other NextSide, but the calculation is done |
| 61 | //! on an edge only. |
| 62 | Standard_EXPORT static void NextSide (TopAbs_Orientation& Or, const TopAbs_Orientation OrSave, const TopAbs_Orientation OrFace); |
| 63 | |
| 64 | //! Enables to determine while processing an angle, if |
| 65 | //! two fillets or chamfers constituting a face have |
| 66 | //! identic or opposed concave edges. |
| 67 | Standard_EXPORT static Standard_Boolean SameSide (const TopAbs_Orientation Or, const TopAbs_Orientation OrSave1, const TopAbs_Orientation OrSave2, const TopAbs_Orientation OrFace1, const TopAbs_Orientation OrFace2); |
| 68 | |
| 69 | |
| 70 | |
| 71 | |
| 72 | protected: |
| 73 | |
| 74 | |
| 75 | |
| 76 | |
| 77 | |
| 78 | private: |
| 79 | |
| 80 | |
| 81 | |
| 82 | |
| 83 | friend class ChFi3d_Builder; |
| 84 | friend class ChFi3d_ChBuilder; |
| 85 | friend class ChFi3d_FilBuilder; |
| 86 | friend class ChFi3d_SearchSing; |
| 87 | |
| 88 | }; |
| 89 | |
| 90 | |
| 91 | |
| 92 | |
| 93 | |
| 94 | |
| 95 | |
| 96 | #endif // _ChFi3d_HeaderFile |
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