42cf5bc1 |
1 | // Created on: 1991-02-26 |
2 | // Created by: Isabelle GRIGNON |
3 | // Copyright (c) 1991-1999 Matra Datavision |
4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
5 | // |
6 | // This file is part of Open CASCADE Technology software library. |
7 | // |
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. |
13 | // |
14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
16 | |
17 | #ifndef _Extrema_ECC_HeaderFile |
18 | #define _Extrema_ECC_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
24 | #include <Standard_Boolean.hxx> |
25 | #include <Standard_Real.hxx> |
26 | #include <math_Vector.hxx> |
27 | #include <TColStd_SequenceOfReal.hxx> |
28 | #include <Standard_Address.hxx> |
29 | #include <TColgp_HArray1OfPnt.hxx> |
30 | #include <Standard_Integer.hxx> |
ce64c9ad |
31 | |
42cf5bc1 |
32 | class Adaptor3d_Curve; |
33 | class Extrema_CurveTool; |
34 | class Extrema_POnCurv; |
35 | class gp_Pnt; |
36 | class gp_Vec; |
37 | |
38 | |
42cf5bc1 |
39 | class Extrema_ECC |
40 | { |
41 | public: |
42 | |
43 | DEFINE_STANDARD_ALLOC |
44 | |
45 | |
36b9ff75 |
46 | //! Calculates all the distances as above |
47 | //! between Uinf and Usup for C1 and between Vinf and Vsup |
48 | //! for C2. |
42cf5bc1 |
49 | Standard_EXPORT Extrema_ECC(); |
50 | |
36b9ff75 |
51 | //! It calculates all the distances. |
52 | //! The function F(u,v)=distance(C1(u),C2(v)) has an |
53 | //! extremum when gradient(f)=0. The algorithm uses |
54 | //! Evtushenko's global optimization solver. |
42cf5bc1 |
55 | Standard_EXPORT Extrema_ECC(const Adaptor3d_Curve& C1, const Adaptor3d_Curve& C2); |
56 | |
36b9ff75 |
57 | //! Calculates all the distances as above |
58 | //! between Uinf and Usup for C1 and between Vinf and Vsup |
59 | //! for C2. |
42cf5bc1 |
60 | Standard_EXPORT Extrema_ECC(const Adaptor3d_Curve& C1, const Adaptor3d_Curve& C2, const Standard_Real Uinf, const Standard_Real Usup, const Standard_Real Vinf, const Standard_Real Vsup); |
61 | |
36b9ff75 |
62 | //! Set params in case of empty constructor is usage. |
42cf5bc1 |
63 | Standard_EXPORT void SetParams (const Adaptor3d_Curve& C1, const Adaptor3d_Curve& C2, const Standard_Real Uinf, const Standard_Real Usup, const Standard_Real Vinf, const Standard_Real Vsup); |
64 | |
65 | Standard_EXPORT void SetTolerance (const Standard_Real Tol); |
836d7b64 |
66 | |
67 | //! Set flag for single extrema computation. Works on parametric solver only. |
68 | Standard_EXPORT void SetSingleSolutionFlag (const Standard_Boolean theSingleSolutionFlag); |
69 | |
70 | //! Get flag for single extrema computation. Works on parametric solver only. |
71 | Standard_EXPORT Standard_Boolean GetSingleSolutionFlag () const; |
72 | |
36b9ff75 |
73 | //! Performs calculations. |
42cf5bc1 |
74 | Standard_EXPORT void Perform(); |
75 | |
36b9ff75 |
76 | //! Returns True if the distances are found. |
42cf5bc1 |
77 | Standard_EXPORT Standard_Boolean IsDone() const; |
78 | |
36b9ff75 |
79 | //! Returns state of myParallel flag. |
42cf5bc1 |
80 | Standard_EXPORT Standard_Boolean IsParallel() const; |
81 | |
36b9ff75 |
82 | //! Returns the number of extremum distances. |
42cf5bc1 |
83 | Standard_EXPORT Standard_Integer NbExt() const; |
84 | |
36b9ff75 |
85 | //! Returns the value of the Nth square extremum distance. |
42cf5bc1 |
86 | Standard_EXPORT Standard_Real SquareDistance (const Standard_Integer N = 1) const; |
87 | |
36b9ff75 |
88 | //! Returns the points of the Nth extremum distance. |
89 | //! P1 is on the first curve, P2 on the second one. |
42cf5bc1 |
90 | Standard_EXPORT void Points (const Standard_Integer N, Extrema_POnCurv& P1, Extrema_POnCurv& P2) const; |
91 | |
92 | |
93 | |
94 | |
95 | protected: |
96 | |
97 | |
98 | |
99 | |
100 | |
101 | private: |
102 | |
103 | |
836d7b64 |
104 | Standard_Boolean myIsFindSingleSolution; // Default value is false. |
42cf5bc1 |
105 | Standard_Boolean myParallel; |
106 | Standard_Real myCurveMinTol; |
107 | math_Vector myLowBorder; |
108 | math_Vector myUppBorder; |
109 | TColStd_SequenceOfReal myPoints1; |
110 | TColStd_SequenceOfReal myPoints2; |
111 | Standard_Address myC[2]; |
112 | Standard_Boolean myDone; |
113 | |
114 | |
115 | }; |
116 | |
117 | |
118 | |
119 | |
120 | |
121 | |
122 | |
123 | #endif // _Extrema_ECC_HeaderFile |