1 // Created on: 1994-07-06
2 // Created by: Laurent PAINNOT
3 // Copyright (c) 1994-1999 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_ExtCC_HeaderFile
18 #define _Extrema_ExtCC_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Extrema_ECC.hxx>
25 #include <Standard_Boolean.hxx>
26 #include <Extrema_SequenceOfPOnCurv.hxx>
27 #include <TColStd_SequenceOfReal.hxx>
28 #include <Standard_Integer.hxx>
29 #include <Standard_Address.hxx>
30 #include <Standard_Real.hxx>
32 class StdFail_InfiniteSolutions;
33 class StdFail_NotDone;
34 class Standard_OutOfRange;
35 class Adaptor3d_Curve;
36 class Extrema_POnCurv;
42 //! It calculates all the distance between two curves.
43 //! These distances can be maximum or minimum.
51 Standard_EXPORT Extrema_ExtCC(const Standard_Real TolC1 = 1.0e-10, const Standard_Real TolC2 = 1.0e-10);
53 //! It calculates all the distances.
54 Standard_EXPORT Extrema_ExtCC(const Adaptor3d_Curve& C1, const Adaptor3d_Curve& C2, const Standard_Real TolC1 = 1.0e-10, const Standard_Real TolC2 = 1.0e-10);
56 //! It calculates all the distances.
57 Standard_EXPORT Extrema_ExtCC(const Adaptor3d_Curve& C1, const Adaptor3d_Curve& C2, const Standard_Real U1, const Standard_Real U2, const Standard_Real V1, const Standard_Real V2, const Standard_Real TolC1 = 1.0e-10, const Standard_Real TolC2 = 1.0e-10);
59 Standard_EXPORT void SetCurve (const Standard_Integer theRank, const Adaptor3d_Curve& C);
61 Standard_EXPORT void SetCurve (const Standard_Integer theRank, const Adaptor3d_Curve& C, const Standard_Real Uinf, const Standard_Real Usup);
63 Standard_EXPORT void SetRange (const Standard_Integer theRank, const Standard_Real Uinf, const Standard_Real Usup);
65 Standard_EXPORT void SetTolerance (const Standard_Integer theRank, const Standard_Real Tol);
67 Standard_EXPORT void Perform();
69 //! Returns True if the distances are found.
70 Standard_EXPORT Standard_Boolean IsDone() const;
72 //! Returns the number of extremum distances.
73 Standard_EXPORT Standard_Integer NbExt() const;
75 //! Returns True if the two curves are parallel.
76 Standard_EXPORT Standard_Boolean IsParallel() const;
78 //! Returns the value of the Nth extremum square distance.
79 Standard_EXPORT Standard_Real SquareDistance (const Standard_Integer N = 1) const;
81 //! Returns the points of the Nth extremum distance.
82 //! P1 is on the first curve, P2 on the second one.
83 Standard_EXPORT void Points (const Standard_Integer N, Extrema_POnCurv& P1, Extrema_POnCurv& P2) const;
85 //! if the curve is a trimmed curve,
86 //! dist11 is a square distance between the point on C1
87 //! of parameter FirstParameter and the point of
88 //! parameter FirstParameter on C2.
89 Standard_EXPORT void TrimmedSquareDistances (Standard_Real& dist11, Standard_Real& distP12, Standard_Real& distP21, Standard_Real& distP22, gp_Pnt& P11, gp_Pnt& P12, gp_Pnt& P21, gp_Pnt& P22) const;
91 //! Set flag for single extrema computation. Works on parametric solver only.
92 Standard_EXPORT void SetSingleSolutionFlag (const Standard_Boolean theSingleSolutionFlag);
94 //! Get flag for single extrema computation. Works on parametric solver only.
95 Standard_EXPORT Standard_Boolean GetSingleSolutionFlag () const;
100 Standard_EXPORT void Results (const Extrema_ExtElC& AlgExt, const Standard_Real Ut11, const Standard_Real Ut12, const Standard_Real Ut21, const Standard_Real Ut22);
102 Standard_EXPORT void Results (const Extrema_ECC& AlgExt, const Standard_Real Ut11, const Standard_Real Ut12, const Standard_Real Ut21, const Standard_Real Ut22);
110 Standard_Boolean myIsFindSingleSolution; // Default value is false.
112 Standard_Boolean myDone;
113 Standard_Boolean myIsPar;
114 Extrema_SequenceOfPOnCurv mypoints;
115 TColStd_SequenceOfReal mySqDist;
116 Standard_Integer mynbext;
117 Standard_Boolean inverse;
118 Standard_Address myC[2];
119 Standard_Real myInf[2];
120 Standard_Real mySup[2];
121 Standard_Real myTol[2];
126 Standard_Real mydist11;
127 Standard_Real mydist12;
128 Standard_Real mydist21;
129 Standard_Real mydist22;
140 #endif // _Extrema_ExtCC_HeaderFile