1 // Created on: 1996-01-18
2 // Created by: Laurent PAINNOT
3 // Copyright (c) 1996-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
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.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _Extrema_GenExtSS_HeaderFile
18 #define _Extrema_GenExtSS_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Standard_Boolean.hxx>
25 #include <Standard_Real.hxx>
26 #include <Standard_Integer.hxx>
27 #include <TColgp_HArray2OfPnt.hxx>
28 #include <Extrema_FuncExtSS.hxx>
29 #include <Adaptor3d_SurfacePtr.hxx>
30 class StdFail_NotDone;
31 class Standard_OutOfRange;
32 class Standard_TypeMismatch;
33 class Adaptor3d_Surface;
34 class Extrema_POnSurf;
37 //! It calculates all the extremum distances
38 //! between two surfaces.
39 //! These distances can be minimum or maximum.
40 class Extrema_GenExtSS
47 Standard_EXPORT Extrema_GenExtSS();
49 //! It calculates all the distances.
50 //! The function F(u,v)=distance(S1(u1,v1),S2(u2,v2)) has an
51 //! extremum when gradient(F)=0. The algorithm searchs
52 //! all the zeros inside the definition ranges of the
54 //! NbU and NbV are used to locate the close points
55 //! to find the zeros.
56 Standard_EXPORT Extrema_GenExtSS(const Adaptor3d_Surface& S1, const Adaptor3d_Surface& S2, const Standard_Integer NbU, const Standard_Integer NbV, const Standard_Real Tol1, const Standard_Real Tol2);
58 //! It calculates all the distances.
59 //! The function F(u,v)=distance(P,S(u,v)) has an
60 //! extremum when gradient(F)=0. The algorithm searchs
61 //! all the zeros inside the definition ranges of the
63 //! NbU and NbV are used to locate the close points
64 //! to find the zeros.
65 Standard_EXPORT Extrema_GenExtSS(const Adaptor3d_Surface& S1, const Adaptor3d_Surface& S2, const Standard_Integer NbU, const Standard_Integer NbV, const Standard_Real U1min, const Standard_Real U1sup, const Standard_Real V1min, const Standard_Real V1sup, const Standard_Real U2min, const Standard_Real U2sup, const Standard_Real V2min, const Standard_Real V2sup, const Standard_Real Tol1, const Standard_Real Tol2);
67 Standard_EXPORT void Initialize (const Adaptor3d_Surface& S2, const Standard_Integer NbU, const Standard_Integer NbV, const Standard_Real Tol2);
69 Standard_EXPORT void Initialize (const Adaptor3d_Surface& S2, const Standard_Integer NbU, const Standard_Integer NbV, const Standard_Real U2min, const Standard_Real U2sup, const Standard_Real V2min, const Standard_Real V2sup, const Standard_Real Tol2);
71 //! the algorithm is done with S1
72 //! An exception is raised if the fields have not
74 Standard_EXPORT void Perform (const Adaptor3d_Surface& S1, const Standard_Real Tol1);
76 //! the algorithm is done withS1
77 //! An exception is raised if the fields have not
79 Standard_EXPORT void Perform (const Adaptor3d_Surface& S1, const Standard_Real U1min, const Standard_Real U1sup, const Standard_Real V1min, const Standard_Real V1sup, const Standard_Real Tol1);
81 //! Returns True if the distances are found.
82 Standard_EXPORT Standard_Boolean IsDone() const;
84 //! Returns the number of extremum distances.
85 Standard_EXPORT Standard_Integer NbExt() const;
87 //! Returns the value of the Nth resulting square distance.
88 Standard_EXPORT Standard_Real SquareDistance (const Standard_Integer N) const;
90 //! Returns the point of the Nth resulting distance.
91 Standard_EXPORT const Extrema_POnSurf& PointOnS1 (const Standard_Integer N) const;
93 //! Returns the point of the Nth resulting distance.
94 Standard_EXPORT const Extrema_POnSurf& PointOnS2 (const Standard_Integer N) const;
108 Standard_EXPORT Adaptor3d_SurfacePtr Bidon() const;
111 Standard_Boolean myDone;
112 Standard_Boolean myInit;
113 Standard_Real myu1min;
114 Standard_Real myu1sup;
115 Standard_Real myv1min;
116 Standard_Real myv1sup;
117 Standard_Real myu2min;
118 Standard_Real myu2sup;
119 Standard_Real myv2min;
120 Standard_Real myv2sup;
121 Standard_Integer myusample;
122 Standard_Integer myvsample;
123 Handle(TColgp_HArray2OfPnt) mypoints1;
124 Handle(TColgp_HArray2OfPnt) mypoints2;
125 Standard_Real mytol1;
126 Standard_Real mytol2;
127 Extrema_FuncExtSS myF;
128 Adaptor3d_SurfacePtr myS2;
139 #endif // _Extrema_GenExtSS_HeaderFile