0031668: Visualization - WebGL sample doesn't work on Emscripten 1.39
[occt.git] / src / BRepLProp / BRepLProp_SurfaceTool.hxx
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42cf5bc1 1// Created on: 1994-02-24
2// Created by: Laurent BOURESCHE
3// Copyright (c) 1994-1999 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 _BRepLProp_SurfaceTool_HeaderFile
18#define _BRepLProp_SurfaceTool_HeaderFile
19
20#include <Standard.hxx>
21#include <Standard_DefineAlloc.hxx>
22#include <Standard_Handle.hxx>
23
24#include <Standard_Real.hxx>
25#include <Standard_Integer.hxx>
26class BRepAdaptor_Surface;
27class gp_Pnt;
28class gp_Vec;
29
30
31
32class BRepLProp_SurfaceTool
33{
34public:
35
36 DEFINE_STANDARD_ALLOC
37
38
39 //! Computes the point <P> of parameter <U> and <V> on the
40 //! Surface <S>.
41 Standard_EXPORT static void Value (const BRepAdaptor_Surface& S, const Standard_Real U, const Standard_Real V, gp_Pnt& P);
42
43 //! Computes the point <P> and first derivative <D1*> of
44 //! parameter <U> and <V> on the Surface <S>.
45 Standard_EXPORT static void D1 (const BRepAdaptor_Surface& S, 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*> and second
48 //! derivative <D2*> of parameter <U> and <V> on the Surface <S>.
49 Standard_EXPORT static void D2 (const BRepAdaptor_Surface& S, 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);
50
51 Standard_EXPORT static gp_Vec DN (const BRepAdaptor_Surface& S, const Standard_Real U, const Standard_Real V, const Standard_Integer IU, const Standard_Integer IV);
52
53 //! returns the order of continuity of the Surface <S>.
54 //! returns 1 : first derivative only is computable
55 //! returns 2 : first and second derivative only are computable.
56 Standard_EXPORT static Standard_Integer Continuity (const BRepAdaptor_Surface& S);
57
58 //! returns the bounds of the Surface.
59 Standard_EXPORT static void Bounds (const BRepAdaptor_Surface& S, Standard_Real& U1, Standard_Real& V1, Standard_Real& U2, Standard_Real& V2);
60
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62
63
64protected:
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68
69
70private:
71
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74
75
76};
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83
84#endif // _BRepLProp_SurfaceTool_HeaderFile