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Warning, file /include/opencascade/GeomProjLib.hxx was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).
0001 // Created on: 1993-08-25 0002 // Created by: Bruno DUMORTIER 0003 // Copyright (c) 1993-1999 Matra Datavision 0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS 0005 // 0006 // This file is part of Open CASCADE Technology software library. 0007 // 0008 // This library is free software; you can redistribute it and/or modify it under 0009 // the terms of the GNU Lesser General Public License version 2.1 as published 0010 // by the Free Software Foundation, with special exception defined in the file 0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT 0012 // distribution for complete text of the license and disclaimer of any warranty. 0013 // 0014 // Alternatively, this file may be used under the terms of Open CASCADE 0015 // commercial license or contractual agreement. 0016 0017 #ifndef _GeomProjLib_HeaderFile 0018 #define _GeomProjLib_HeaderFile 0019 0020 #include <Standard.hxx> 0021 #include <Standard_DefineAlloc.hxx> 0022 #include <Standard_Handle.hxx> 0023 0024 #include <Standard_Real.hxx> 0025 #include <Standard_Boolean.hxx> 0026 class Geom2d_Curve; 0027 class Geom_Curve; 0028 class Geom_Surface; 0029 class Geom_Plane; 0030 class gp_Dir; 0031 0032 //! Projection of a curve on a surface. 0033 class GeomProjLib 0034 { 0035 public: 0036 DEFINE_STANDARD_ALLOC 0037 0038 //! gives the 2d-curve of a 3d-curve lying on a 0039 //! surface (uses GeomProjLib_ProjectedCurve) 0040 //! The 3dCurve is taken between the parametrization 0041 //! range [First, Last] 0042 //! <Tolerance> is used as input if the projection needs 0043 //! an approximation. In this case, the reached 0044 //! tolerance is set in <Tolerance> as output. 0045 //! WARNING: if the projection has failed, this 0046 //! method returns a null Handle. 0047 Standard_EXPORT static occ::handle<Geom2d_Curve> Curve2d(const occ::handle<Geom_Curve>& C, 0048 const double First, 0049 const double Last, 0050 const occ::handle<Geom_Surface>& S, 0051 const double UFirst, 0052 const double ULast, 0053 const double VFirst, 0054 const double VLast, 0055 double& Tolerance); 0056 0057 //! gives the 2d-curve of a 3d-curve lying on a 0058 //! surface (uses GeomProjLib_ProjectedCurve) 0059 //! The 3dCurve is taken between the parametrization 0060 //! range [First, Last] 0061 //! <Tolerance> is used as input if the projection needs 0062 //! an approximation. In this case, the reached 0063 //! tolerance is set in <Tolerance> as output. 0064 //! WARNING: if the projection has failed, this 0065 //! method returns a null Handle. 0066 Standard_EXPORT static occ::handle<Geom2d_Curve> Curve2d(const occ::handle<Geom_Curve>& C, 0067 const double First, 0068 const double Last, 0069 const occ::handle<Geom_Surface>& S, 0070 double& Tolerance); 0071 0072 //! gives the 2d-curve of a 3d-curve lying on a 0073 //! surface (uses GeomProjLib_ProjectedCurve) 0074 //! The 3dCurve is taken between the parametrization 0075 //! range [First, Last] 0076 //! If the projection needs an approximation, 0077 //! Precision::PApproximation() is used. 0078 //! WARNING: if the projection has failed, this 0079 //! method returns a null Handle. 0080 Standard_EXPORT static occ::handle<Geom2d_Curve> Curve2d(const occ::handle<Geom_Curve>& C, 0081 const double First, 0082 const double Last, 0083 const occ::handle<Geom_Surface>& S); 0084 0085 //! gives the 2d-curve of a 3d-curve lying on a 0086 //! surface (uses GeomProjLib_ProjectedCurve) 0087 //! If the projection needs an approximation, 0088 //! Precision::PApproximation() is used. 0089 //! WARNING: if the projection has failed, this 0090 //! method returns a null Handle. 0091 Standard_EXPORT static occ::handle<Geom2d_Curve> Curve2d(const occ::handle<Geom_Curve>& C, 0092 const occ::handle<Geom_Surface>& S); 0093 0094 //! gives the 2d-curve of a 3d-curve lying on a 0095 //! surface (uses GeomProjLib_ProjectedCurve) 0096 //! If the projection needs an approximation, 0097 //! Precision::PApproximation() is used. 0098 //! WARNING: if the projection has failed, this 0099 //! method returns a null Handle. 0100 //! can expand a little the bounds of surface 0101 Standard_EXPORT static occ::handle<Geom2d_Curve> Curve2d(const occ::handle<Geom_Curve>& C, 0102 const occ::handle<Geom_Surface>& S, 0103 const double UDeb, 0104 const double UFin, 0105 const double VDeb, 0106 const double VFin); 0107 0108 //! gives the 2d-curve of a 3d-curve lying on a 0109 //! surface (uses GeomProjLib_ProjectedCurve) 0110 //! If the projection needs an approximation, 0111 //! Precision::PApproximation() is used. 0112 //! WARNING: if the projection has failed, this 0113 //! method returns a null Handle. 0114 //! can expand a little the bounds of surface 0115 Standard_EXPORT static occ::handle<Geom2d_Curve> Curve2d(const occ::handle<Geom_Curve>& C, 0116 const occ::handle<Geom_Surface>& S, 0117 const double UDeb, 0118 const double UFin, 0119 const double VDeb, 0120 const double VFin, 0121 double& Tolerance); 0122 0123 //! Constructs the 3d-curve from the normal 0124 //! projection of the Curve <C> on the surface <S>. 0125 //! WARNING: if the projection has failed, returns a 0126 //! null Handle. 0127 Standard_EXPORT static occ::handle<Geom_Curve> Project(const occ::handle<Geom_Curve>& C, 0128 const occ::handle<Geom_Surface>& S); 0129 0130 //! Constructs the 3d-curves from the projection 0131 //! of the curve <Curve> on the plane <Plane> along 0132 //! the direction <Dir>. 0133 //! If <KeepParametrization> is true, the parametrization 0134 //! of the Projected Curve <PC> will be the same as the 0135 //! parametrization of the initial curve <C>. 0136 //! It means: proj(C(u)) = PC(u) for each u. 0137 //! Otherwise, the parametrization may change. 0138 Standard_EXPORT static occ::handle<Geom_Curve> ProjectOnPlane( 0139 const occ::handle<Geom_Curve>& Curve, 0140 const occ::handle<Geom_Plane>& Plane, 0141 const gp_Dir& Dir, 0142 const bool KeepParametrization); 0143 }; 0144 0145 #endif // _GeomProjLib_HeaderFile
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