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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 0028 //! Tool for the intersection between 2 surfaces. 0029 //! Regroupe pour l instant les methodes hors Adaptor3d... 0030 class Contap_HContTool 0031 { 0032 public: 0033 0034 DEFINE_STANDARD_ALLOC 0035 0036 0037 Standard_EXPORT static Standard_Integer NbSamplesU (const Handle(Adaptor3d_Surface)& S, const Standard_Real u1, const Standard_Real u2); 0038 0039 Standard_EXPORT static Standard_Integer NbSamplesV (const Handle(Adaptor3d_Surface)& S, const Standard_Real v1, const Standard_Real v2); 0040 0041 Standard_EXPORT static Standard_Integer NbSamplePoints (const Handle(Adaptor3d_Surface)& S); 0042 0043 Standard_EXPORT static void SamplePoint (const Handle(Adaptor3d_Surface)& S, const Standard_Integer Index, Standard_Real& U, Standard_Real& V); 0044 0045 //! Returns True if all the intersection point and edges 0046 //! are known on the Arc. 0047 //! The intersection point are given as vertices. 0048 //! The intersection edges are given as intervals between 0049 //! two vertices. 0050 Standard_EXPORT static Standard_Boolean HasBeenSeen (const Handle(Adaptor2d_Curve2d)& C); 0051 0052 //! returns the number of points which is used to make 0053 //! a sample on the arc. this number is a function of 0054 //! the Surface and the CurveOnSurface complexity. 0055 Standard_EXPORT static Standard_Integer NbSamplesOnArc (const Handle(Adaptor2d_Curve2d)& A); 0056 0057 //! Returns the parametric limits on the arc C. 0058 //! These limits must be finite : they are either 0059 //! the real limits of the arc, for a finite arc, 0060 //! or a bounding box for an infinite arc. 0061 Standard_EXPORT static void Bounds (const Handle(Adaptor2d_Curve2d)& C, Standard_Real& Ufirst, Standard_Real& Ulast); 0062 0063 //! Projects the point P on the arc C. 0064 //! If the methods returns Standard_True, the projection is 0065 //! successful, and Paramproj is the parameter on the arc 0066 //! of the projected point, Ptproj is the projected Point. 0067 //! If the method returns Standard_False, Param proj and Ptproj 0068 //! are not significant. 0069 Standard_EXPORT static Standard_Boolean Project (const Handle(Adaptor2d_Curve2d)& C, const gp_Pnt2d& P, Standard_Real& Paramproj, gp_Pnt2d& Ptproj); 0070 0071 //! Returns the parametric tolerance used to consider 0072 //! that the vertex and another point meet, i-e 0073 //! if Abs(parameter(Vertex) - parameter(OtherPnt))<= 0074 //! Tolerance, the points are "merged". 0075 Standard_EXPORT static Standard_Real Tolerance (const Handle(Adaptor3d_HVertex)& V, const Handle(Adaptor2d_Curve2d)& C); 0076 0077 //! Returns the parameter of the vertex V on the arc A. 0078 Standard_EXPORT static Standard_Real Parameter (const Handle(Adaptor3d_HVertex)& V, const Handle(Adaptor2d_Curve2d)& C); 0079 0080 //! Returns the number of intersection points on the arc A. 0081 Standard_EXPORT static Standard_Integer NbPoints (const Handle(Adaptor2d_Curve2d)& C); 0082 0083 //! Returns the value (Pt), the tolerance (Tol), and 0084 //! the parameter (U) on the arc A , of the intersection 0085 //! point of range Index. 0086 Standard_EXPORT static void Value (const Handle(Adaptor2d_Curve2d)& C, const Standard_Integer Index, gp_Pnt& Pt, Standard_Real& Tol, Standard_Real& U); 0087 0088 //! Returns True if the intersection point of range Index 0089 //! corresponds with a vertex on the arc A. 0090 Standard_EXPORT static Standard_Boolean IsVertex (const Handle(Adaptor2d_Curve2d)& C, const Standard_Integer Index); 0091 0092 //! When IsVertex returns True, this method returns the 0093 //! vertex on the arc A. 0094 Standard_EXPORT static void Vertex (const Handle(Adaptor2d_Curve2d)& C, const Standard_Integer Index, Handle(Adaptor3d_HVertex)& V); 0095 0096 //! returns the number of part of A solution of the 0097 //! of intersection problem. 0098 Standard_EXPORT static Standard_Integer NbSegments (const Handle(Adaptor2d_Curve2d)& C); 0099 0100 //! Returns True when the segment of range Index is not 0101 //! open at the left side. In that case, IndFirst is the 0102 //! range in the list intersection points (see NbPoints) 0103 //! of the one which defines the left bound of the segment. 0104 //! Otherwise, the method has to return False, and IndFirst 0105 //! has no meaning. 0106 Standard_EXPORT static Standard_Boolean HasFirstPoint (const Handle(Adaptor2d_Curve2d)& C, const Standard_Integer Index, Standard_Integer& IndFirst); 0107 0108 //! Returns True when the segment of range Index is not 0109 //! open at the right side. In that case, IndLast is the 0110 //! range in the list intersection points (see NbPoints) 0111 //! of the one which defines the right bound of the segment. 0112 //! Otherwise, the method has to return False, and IndLast 0113 //! has no meaning. 0114 Standard_EXPORT static Standard_Boolean HasLastPoint (const Handle(Adaptor2d_Curve2d)& C, const Standard_Integer Index, Standard_Integer& IndLast); 0115 0116 //! Returns True when the whole restriction is solution 0117 //! of the intersection problem. 0118 Standard_EXPORT static Standard_Boolean IsAllSolution (const Handle(Adaptor2d_Curve2d)& C); 0119 0120 0121 0122 0123 protected: 0124 0125 0126 0127 0128 0129 private: 0130 0131 0132 0133 0134 0135 }; 0136 0137 0138 0139 0140 0141 0142 0143 #endif // _Contap_HContTool_HeaderFile
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