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1 | // Created on: 1995-12-04 |
2 | // Created by: Laurent BOURESCHE |
3 | // Copyright (c) 1995-1999 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 _GeomFill_CoonsAlgPatch_HeaderFile |
18 | #define _GeomFill_CoonsAlgPatch_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_Type.hxx> |
22 | |
23 | #include <gp_Pnt.hxx> |
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24 | #include <Standard_Transient.hxx> |
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25 | #include <Standard_Real.hxx> |
26 | #include <Standard_Integer.hxx> |
27 | class GeomFill_Boundary; |
28 | class Law_Function; |
29 | class gp_Pnt; |
30 | class gp_Vec; |
31 | |
32 | |
33 | class GeomFill_CoonsAlgPatch; |
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34 | DEFINE_STANDARD_HANDLE(GeomFill_CoonsAlgPatch, Standard_Transient) |
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35 | |
36 | //! Provides evaluation methods on an algorithmic |
37 | //! patch (based on 4 Curves) defined by its boundaries and blending |
38 | //! functions. |
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39 | class GeomFill_CoonsAlgPatch : public Standard_Transient |
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40 | { |
41 | |
42 | public: |
43 | |
44 | |
45 | //! Constructs the algorithmic patch. By Default the |
46 | //! constructed blending functions are linear. |
47 | //! Warning: No control is done on the bounds. |
48 | //! B1/B3 and B2/B4 must be same range and well oriented. |
49 | Standard_EXPORT GeomFill_CoonsAlgPatch(const Handle(GeomFill_Boundary)& B1, const Handle(GeomFill_Boundary)& B2, const Handle(GeomFill_Boundary)& B3, const Handle(GeomFill_Boundary)& B4); |
50 | |
51 | //! Give the blending functions. |
52 | Standard_EXPORT void Func (Handle(Law_Function)& f1, Handle(Law_Function)& f2) const; |
53 | |
54 | //! Set the blending functions. |
55 | Standard_EXPORT void SetFunc (const Handle(Law_Function)& f1, const Handle(Law_Function)& f2); |
56 | |
57 | //! Computes the value on the algorithmic patch at |
58 | //! parameters U and V. |
59 | Standard_EXPORT gp_Pnt Value (const Standard_Real U, const Standard_Real V) const; |
60 | |
61 | //! Computes the d/dU partial derivative on the |
62 | //! algorithmic patch at parameters U and V. |
63 | Standard_EXPORT gp_Vec D1U (const Standard_Real U, const Standard_Real V) const; |
64 | |
65 | //! Computes the d/dV partial derivative on the |
66 | //! algorithmic patch at parameters U and V. |
67 | Standard_EXPORT gp_Vec D1V (const Standard_Real U, const Standard_Real V) const; |
68 | |
69 | //! Computes the d2/dUdV partial derivative on the |
70 | //! algorithmic patch made with linear blending functions |
71 | //! at parameter U and V. |
72 | Standard_EXPORT gp_Vec DUV (const Standard_Real U, const Standard_Real V) const; |
73 | |
74 | Standard_EXPORT const gp_Pnt& Corner (const Standard_Integer I) const; |
75 | |
76 | Standard_EXPORT const Handle(GeomFill_Boundary)& Bound (const Standard_Integer I) const; |
77 | |
78 | Standard_EXPORT const Handle(Law_Function)& Func (const Standard_Integer I) const; |
79 | |
80 | |
81 | |
82 | |
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83 | DEFINE_STANDARD_RTTIEXT(GeomFill_CoonsAlgPatch,Standard_Transient) |
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84 | |
85 | protected: |
86 | |
87 | |
88 | |
89 | |
90 | private: |
91 | |
92 | |
93 | Handle(GeomFill_Boundary) bound[4]; |
94 | gp_Pnt c[4]; |
95 | Handle(Law_Function) a[2]; |
96 | |
97 | |
98 | }; |
99 | |
100 | |
101 | |
102 | |
103 | |
104 | |
105 | |
106 | #endif // _GeomFill_CoonsAlgPatch_HeaderFile |