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0001 // Created on: 1995-07-02
0002 // Created by: Laurent BUCHARD
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 _Contap_HContTool_HeaderFile
0018 #define _Contap_HContTool_HeaderFile
0019 
0020 #include <Adaptor2d_Curve2d.hxx>
0021 #include <Adaptor3d_Surface.hxx>
0022 
0023 class gp_Pnt2d;
0024 class Adaptor3d_HVertex;
0025 class gp_Pnt;
0026 
0027 //! Tool for the intersection between 2 surfaces.
0028 //! Regroupe pour l instant les methodes hors Adaptor3d...
0029 class Contap_HContTool
0030 {
0031 public:
0032   DEFINE_STANDARD_ALLOC
0033 
0034   Standard_EXPORT static int NbSamplesU(const occ::handle<Adaptor3d_Surface>& S,
0035                                         const double                          u1,
0036                                         const double                          u2);
0037 
0038   Standard_EXPORT static int NbSamplesV(const occ::handle<Adaptor3d_Surface>& S,
0039                                         const double                          v1,
0040                                         const double                          v2);
0041 
0042   Standard_EXPORT static int NbSamplePoints(const occ::handle<Adaptor3d_Surface>& S);
0043 
0044   Standard_EXPORT static void SamplePoint(const occ::handle<Adaptor3d_Surface>& S,
0045                                           const int                             Index,
0046                                           double&                               U,
0047                                           double&                               V);
0048 
0049   //! Returns True if all the intersection point and edges
0050   //! are known on the Arc.
0051   //! The intersection point are given as vertices.
0052   //! The intersection edges are given as intervals between
0053   //! two vertices.
0054   Standard_EXPORT static bool HasBeenSeen(const occ::handle<Adaptor2d_Curve2d>& C);
0055 
0056   //! returns the number of points which is used to make
0057   //! a sample on the arc. this number is a function of
0058   //! the Surface and the CurveOnSurface complexity.
0059   Standard_EXPORT static int NbSamplesOnArc(const occ::handle<Adaptor2d_Curve2d>& A);
0060 
0061   //! Returns the parametric limits on the arc C.
0062   //! These limits must be finite : they are either
0063   //! the real limits of the arc, for a finite arc,
0064   //! or a bounding box for an infinite arc.
0065   Standard_EXPORT static void Bounds(const occ::handle<Adaptor2d_Curve2d>& C,
0066                                      double&                               Ufirst,
0067                                      double&                               Ulast);
0068 
0069   //! Projects the point P on the arc C.
0070   //! If the methods returns true, the projection is
0071   //! successful, and Paramproj is the parameter on the arc
0072   //! of the projected point, Ptproj is the projected Point.
0073   //! If the method returns false, Param proj and Ptproj
0074   //! are not significant.
0075   Standard_EXPORT static bool Project(const occ::handle<Adaptor2d_Curve2d>& C,
0076                                       const gp_Pnt2d&                       P,
0077                                       double&                               Paramproj,
0078                                       gp_Pnt2d&                             Ptproj);
0079 
0080   //! Returns the parametric tolerance used to consider
0081   //! that the vertex and another point meet, i-e
0082   //! if std::abs(parameter(Vertex) - parameter(OtherPnt))<=
0083   //! Tolerance, the points are "merged".
0084   Standard_EXPORT static double Tolerance(const occ::handle<Adaptor3d_HVertex>& V,
0085                                           const occ::handle<Adaptor2d_Curve2d>& C);
0086 
0087   //! Returns the parameter of the vertex V on the arc A.
0088   Standard_EXPORT static double Parameter(const occ::handle<Adaptor3d_HVertex>& V,
0089                                           const occ::handle<Adaptor2d_Curve2d>& C);
0090 
0091   //! Returns the number of intersection points on the arc A.
0092   Standard_EXPORT static int NbPoints(const occ::handle<Adaptor2d_Curve2d>& C);
0093 
0094   //! Returns the value (Pt), the tolerance (Tol), and
0095   //! the parameter (U) on the arc A , of the intersection
0096   //! point of range Index.
0097   Standard_EXPORT static void Value(const occ::handle<Adaptor2d_Curve2d>& C,
0098                                     const int                             Index,
0099                                     gp_Pnt&                               Pt,
0100                                     double&                               Tol,
0101                                     double&                               U);
0102 
0103   //! Returns True if the intersection point of range Index
0104   //! corresponds with a vertex on the arc A.
0105   Standard_EXPORT static bool IsVertex(const occ::handle<Adaptor2d_Curve2d>& C, const int Index);
0106 
0107   //! When IsVertex returns True, this method returns the
0108   //! vertex on the arc A.
0109   Standard_EXPORT static void Vertex(const occ::handle<Adaptor2d_Curve2d>& C,
0110                                      const int                             Index,
0111                                      occ::handle<Adaptor3d_HVertex>&       V);
0112 
0113   //! returns the number of part of A solution of the
0114   //! of intersection problem.
0115   Standard_EXPORT static int NbSegments(const occ::handle<Adaptor2d_Curve2d>& C);
0116 
0117   //! Returns True when the segment of range Index is not
0118   //! open at the left side. In that case, IndFirst is the
0119   //! range in the list intersection points (see NbPoints)
0120   //! of the one which defines the left bound of the segment.
0121   //! Otherwise, the method has to return False, and IndFirst
0122   //! has no meaning.
0123   Standard_EXPORT static bool HasFirstPoint(const occ::handle<Adaptor2d_Curve2d>& C,
0124                                             const int                             Index,
0125                                             int&                                  IndFirst);
0126 
0127   //! Returns True when the segment of range Index is not
0128   //! open at the right side. In that case, IndLast is the
0129   //! range in the list intersection points (see NbPoints)
0130   //! of the one which defines the right bound of the segment.
0131   //! Otherwise, the method has to return False, and IndLast
0132   //! has no meaning.
0133   Standard_EXPORT static bool HasLastPoint(const occ::handle<Adaptor2d_Curve2d>& C,
0134                                            const int                             Index,
0135                                            int&                                  IndLast);
0136 
0137   //! Returns True when the whole restriction is solution
0138   //! of the intersection problem.
0139   Standard_EXPORT static bool IsAllSolution(const occ::handle<Adaptor2d_Curve2d>& C);
0140 };
0141 
0142 #endif // _Contap_HContTool_HeaderFile