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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_LocECC_HeaderFile |
18 | #define _Extrema_LocECC_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 <Extrema_POnCurv.hxx> |
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27 | #include <Extrema_SequenceOfPOnCurv.hxx> |
28 | |
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29 | class Standard_DomainError; |
30 | class StdFail_NotDone; |
31 | class Adaptor3d_Curve; |
32 | class Extrema_CurveTool; |
33 | class Extrema_POnCurv; |
34 | class gp_Pnt; |
35 | class gp_Vec; |
36 | class Extrema_CCLocFOfLocECC; |
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37 | |
38 | class Extrema_LocECC |
39 | { |
40 | public: |
41 | |
42 | DEFINE_STANDARD_ALLOC |
43 | |
44 | |
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45 | //! Calculates the distance with a close point. The |
46 | //! close point is defined by a parameter value on each |
47 | //! curve. |
48 | //! The function F(u,v)=distance(C1(u),C2(v)) has an |
49 | //! extremun when gradient(f)=0. The algorithm searchs |
50 | //! the zero near the close point. |
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51 | Standard_EXPORT Extrema_LocECC(const Adaptor3d_Curve& C1, const Adaptor3d_Curve& C2, const Standard_Real U0, const Standard_Real V0, const Standard_Real TolU, const Standard_Real TolV); |
52 | |
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53 | //! Returns True if the distance is found. |
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54 | Standard_EXPORT Standard_Boolean IsDone() const; |
55 | |
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56 | //! Returns the value of the extremum square distance. |
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57 | Standard_EXPORT Standard_Real SquareDistance() const; |
58 | |
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59 | //! Returns the points of the extremum distance. |
60 | //! P1 is on the first curve, P2 on the second one. |
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61 | Standard_EXPORT void Point (Extrema_POnCurv& P1, Extrema_POnCurv& P2) const; |
62 | |
63 | |
64 | |
65 | |
66 | protected: |
67 | |
68 | |
69 | |
70 | |
71 | |
72 | private: |
73 | |
74 | |
75 | |
76 | Standard_Boolean myDone; |
77 | Standard_Real mySqDist; |
78 | Extrema_POnCurv myPoint1; |
79 | Extrema_POnCurv myPoint2; |
80 | |
81 | |
82 | }; |
83 | |
84 | |
85 | |
86 | |
87 | |
88 | |
89 | |
90 | #endif // _Extrema_LocECC_HeaderFile |