include/opencascade/GeomFill_BoundWithSurf.hxx

0001 // Created on: 1995-10-17
0002 // Created by: Laurent BOURESCHE
0003 // Copyright (c) 1995-1999 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 _GeomFill_BoundWithSurf_HeaderFile
0018 #define _GeomFill_BoundWithSurf_HeaderFile
0019
0020 #include <Standard.hxx>
0021
0022 #include <Adaptor3d_CurveOnSurface.hxx>
0023 #include <GeomFill_Boundary.hxx>
0024 #include <Standard_Real.hxx>
0025 class Law_Function;
0026 class gp_Pnt;
0027 class gp_Vec;
0028
0029 //! Defines a 3d curve as a boundary for a
0030 //! GeomFill_ConstrainedFilling algorithm.
0031 //! This curve is attached to an existing surface.
0032 //! Defines a constrained boundary for filling
0033 //! the computations are done with a CurveOnSurf and a
0034 //! normals field defined by the normalized normal to
0035 //! the surface along the PCurve.
0036 //! Contains fields to allow a reparametrization of curve
0037 //! and normals field.
0038 class GeomFill_BoundWithSurf : public GeomFill_Boundary
0039 {
0040
0041 public:
0042   //! Constructs a boundary object defined by the 3d curve CurveOnSurf.
0043   //! The surface to be filled along this boundary will be in the
0044   //! tolerance range defined by Tol3d.
0045   //! What's more, at each point of CurveOnSurf, the angle
0046   //! between the normal to the surface to be filled along this
0047   //! boundary, and the normal to the surface on which
0048   //! CurveOnSurf lies, must not be greater than TolAng.
0049   //! This object is to be used as a boundary for a
0050   //! GeomFill_ConstrainedFilling framework.
0051   //! Warning
0052   //! CurveOnSurf is an adapted curve, that is, an object
0053   //! which is an interface between:
0054   //! -   the services provided by a curve lying on a surface from the package Geom
0055   //! -   and those required of the curve by the computation algorithm which uses it.
0056   //! The adapted curve is created in the following way:
0057   //! occ::handle<Geom_Surface> mySurface = ... ;
0058   //! occ::handle<Geom2d_Curve> myParamCurve = ... ;
0059   //! // where myParamCurve is a 2D curve in the parametric space of the surface mySurface
0060   //! occ::handle<GeomAdaptor_Surface>
0061   //! Surface = new
0062   //! GeomAdaptor_Surface(mySurface);
0063   //! occ::handle<Geom2dAdaptor_Curve>
0064   //! ParamCurve = new
0065   //! Geom2dAdaptor_Curve(myParamCurve);
0066   //! CurveOnSurf = Adaptor3d_CurveOnSurface(ParamCurve,Surface);
0067   //! The boundary is then constructed with the CurveOnSurf object:
0068   //! double Tol = ... ;
0069   //! double TolAng = ... ;
0070   //! myBoundary = GeomFill_BoundWithSurf (
0071   //! CurveOnSurf, Tol, TolAng );
0072   Standard_EXPORT GeomFill_BoundWithSurf(const Adaptor3d_CurveOnSurface& CurveOnSurf,
0073                                          const double                    Tol3d,
0074                                          const double                    Tolang);
0075
0076   Standard_EXPORT gp_Pnt Value(const double U) const override;
0077
0078   Standard_EXPORT void D1(const double U, gp_Pnt& P, gp_Vec& V) const override;
0079
0080   Standard_EXPORT bool HasNormals() const override;
0081
0082   Standard_EXPORT gp_Vec Norm(const double U) const override;
0083
0084   Standard_EXPORT void D1Norm(const double U, gp_Vec& N, gp_Vec& DN) const override;
0085
0086   Standard_EXPORT void Reparametrize(const double First,
0087                                      const double Last,
0088                                      const bool   HasDF,
0089                                      const bool   HasDL,
0090                                      const double DF,
0091                                      const double DL,
0092                                      const bool   Rev) override;
0093
0094   Standard_EXPORT void Bounds(double& First, double& Last) const override;
0095
0096   Standard_EXPORT bool IsDegenerated() const override;
0097
0098   DEFINE_STANDARD_RTTIEXT(GeomFill_BoundWithSurf, GeomFill_Boundary)
0099
0100 private:
0101   Adaptor3d_CurveOnSurface  myConS;
0102   occ::handle<Law_Function> myPar;
0103 };
0104
0105 #endif // _GeomFill_BoundWithSurf_HeaderFile