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1 | // Created on: 1992-10-01 |
| 2 | // Created by: Jacques GOUSSARD |
| 3 | // Copyright (c) 1992-1999 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 _IntSurf_InteriorPointTool_HeaderFile |
| 18 | #define _IntSurf_InteriorPointTool_HeaderFile |
| 19 | |
| 20 | #include <Standard.hxx> |
| 21 | #include <Standard_DefineAlloc.hxx> |
| 22 | #include <Standard_Handle.hxx> |
| 23 | |
| 24 | #include <gp_Pnt.hxx> |
| 25 | #include <Standard_Real.hxx> |
| 26 | #include <gp_Vec.hxx> |
| 27 | #include <gp_Dir2d.hxx> |
| 28 | class IntSurf_InteriorPoint; |
| 29 | |
| 30 | |
| 31 | //! This class provides a tool on the "interior point" |
| 32 | //! that can be used to instantiates the Walking |
| 33 | //! algorithmes (see package IntWalk). |
| 34 | class IntSurf_InteriorPointTool |
| 35 | { |
| 36 | public: |
| 37 | |
| 38 | DEFINE_STANDARD_ALLOC |
| 39 | |
| 40 | |
| 41 | //! Returns the 3d coordinates of the starting point. |
| 42 | static gp_Pnt Value3d (const IntSurf_InteriorPoint& PStart); |
| 43 | |
| 44 | //! Returns the <U,V> parameters which are associated |
| 45 | //! with <P> |
| 46 | //! it's the parameters which start the marching algorithm |
| 47 | static void Value2d (const IntSurf_InteriorPoint& PStart, Standard_Real& U, Standard_Real& V); |
| 48 | |
| 49 | //! returns the tangent at the intersectin in 3d space |
| 50 | //! associated to <P> |
| 51 | static gp_Vec Direction3d (const IntSurf_InteriorPoint& PStart); |
| 52 | |
| 53 | //! returns the tangent at the intersectin in the |
| 54 | //! parametric space of the parametrized surface.This tangent |
| 55 | //! is associated to the value2d |
| 56 | static gp_Dir2d Direction2d (const IntSurf_InteriorPoint& PStart); |
| 57 | |
| 58 | |
| 59 | |
| 60 | |
| 61 | protected: |
| 62 | |
| 63 | |
| 64 | |
| 65 | |
| 66 | |
| 67 | private: |
| 68 | |
| 69 | |
| 70 | |
| 71 | |
| 72 | |
| 73 | }; |
| 74 | |
| 75 | |
| 76 | #include <IntSurf_InteriorPointTool.lxx> |
| 77 | |
| 78 | |
| 79 | |
| 80 | |
| 81 | |
| 82 | #endif // _IntSurf_InteriorPointTool_HeaderFile |
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