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1 | // Created on: 1993-04-23 |
2 | // Created by: Modelistation |
3 | // Copyright (c) 1993-1999 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 _HLRBRep_SLPropsATool_HeaderFile |
18 | #define _HLRBRep_SLPropsATool_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
24 | #include <Standard_Address.hxx> |
25 | #include <Standard_Real.hxx> |
26 | #include <Standard_Integer.hxx> |
27 | class gp_Pnt; |
28 | class gp_Vec; |
29 | |
30 | |
31 | |
32 | class HLRBRep_SLPropsATool |
33 | { |
34 | public: |
35 | |
36 | DEFINE_STANDARD_ALLOC |
37 | |
38 | |
39 | //! Computes the point <P> of parameter <U> and <V> |
40 | //! on the Surface <A>. |
41 | static void Value (const Standard_Address A, const Standard_Real U, const Standard_Real V, gp_Pnt& P); |
42 | |
43 | //! Computes the point <P> and first derivative <D1*> |
44 | //! of parameter <U> and <V> on the Surface <A>. |
45 | static void D1 (const Standard_Address A, const Standard_Real U, const Standard_Real V, gp_Pnt& P, gp_Vec& D1U, gp_Vec& D1V); |
46 | |
47 | //! Computes the point <P>, the first derivative <D1*> |
48 | //! and second derivative <D2*> of parameter <U> and |
49 | //! <V> on the Surface <A>. |
50 | static void D2 (const Standard_Address A, const Standard_Real U, const Standard_Real V, gp_Pnt& P, gp_Vec& D1U, gp_Vec& D1V, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& DUV); |
51 | |
52 | Standard_EXPORT static gp_Vec DN (const Standard_Address A, const Standard_Real U, const Standard_Real V, const Standard_Integer Nu, const Standard_Integer Nv); |
53 | |
54 | //! returns the order of continuity of the Surface |
55 | //! <A>. returns 1 : first derivative only is |
56 | //! computable returns 2 : first and second derivative |
57 | //! only are computable. |
58 | static Standard_Integer Continuity (const Standard_Address A); |
59 | |
60 | //! returns the bounds of the Surface. |
61 | static void Bounds (const Standard_Address A, Standard_Real& U1, Standard_Real& V1, Standard_Real& U2, Standard_Real& V2); |
62 | |
63 | |
64 | |
65 | |
66 | protected: |
67 | |
68 | |
69 | |
70 | |
71 | |
72 | private: |
73 | |
74 | |
75 | |
76 | |
77 | |
78 | }; |
79 | |
80 | |
81 | #include <HLRBRep_SLPropsATool.lxx> |
82 | |
83 | |
84 | |
85 | |
86 | |
87 | #endif // _HLRBRep_SLPropsATool_HeaderFile |