0031668: Visualization - WebGL sample doesn't work on Emscripten 1.39
[occt.git] / src / LProp3d / LProp3d_CurveTool.hxx
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42cf5bc1 1// Created on: 2002-08-02
2// Created by: Alexander KARTOMIN (akm)
3// Copyright (c) 2002-2014 OPEN CASCADE SAS
4//
5// This file is part of Open CASCADE Technology software library.
6//
7// This library is free software; you can redistribute it and/or modify it under
8// the terms of the GNU Lesser General Public License version 2.1 as published
9// by the Free Software Foundation, with special exception defined in the file
10// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
11// distribution for complete text of the license and disclaimer of any warranty.
12//
13// Alternatively, this file may be used under the terms of Open CASCADE
14// commercial license or contractual agreement.
15
16#ifndef _LProp3d_CurveTool_HeaderFile
17#define _LProp3d_CurveTool_HeaderFile
18
19#include <Standard.hxx>
20#include <Standard_DefineAlloc.hxx>
21#include <Standard_Handle.hxx>
22
23#include <Standard_Real.hxx>
24#include <Standard_Integer.hxx>
25class Adaptor3d_HCurve;
26class gp_Pnt;
27class gp_Vec;
28
29
30
31class LProp3d_CurveTool
32{
33public:
34
35 DEFINE_STANDARD_ALLOC
36
37
38 //! Computes the point <P> of parameter <U> on the HCurve <C>.
39 Standard_EXPORT static void Value (const Handle(Adaptor3d_HCurve)& C, const Standard_Real U, gp_Pnt& P);
40
41 //! Computes the point <P> and first derivative <V1> of
42 //! parameter <U> on the HCurve <C>.
43 Standard_EXPORT static void D1 (const Handle(Adaptor3d_HCurve)& C, const Standard_Real U, gp_Pnt& P, gp_Vec& V1);
44
45 //! Computes the point <P>, the first derivative <V1> and second
46 //! derivative <V2> of parameter <U> on the HCurve <C>.
47 Standard_EXPORT static void D2 (const Handle(Adaptor3d_HCurve)& C, const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2);
48
49 //! Computes the point <P>, the first derivative <V1>, the
50 //! second derivative <V2> and third derivative <V3> of
51 //! parameter <U> on the HCurve <C>.
52 Standard_EXPORT static void D3 (const Handle(Adaptor3d_HCurve)& C, const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2, gp_Vec& V3);
53
54 //! returns the order of continuity of the HCurve <C>.
55 //! returns 1 : first derivative only is computable
56 //! returns 2 : first and second derivative only are computable.
57 //! returns 3 : first, second and third are computable.
58 Standard_EXPORT static Standard_Integer Continuity (const Handle(Adaptor3d_HCurve)& C);
59
60 //! returns the first parameter bound of the HCurve.
61 Standard_EXPORT static Standard_Real FirstParameter (const Handle(Adaptor3d_HCurve)& C);
62
63 //! returns the last parameter bound of the HCurve.
64 //! FirstParameter must be less than LastParamenter.
65 Standard_EXPORT static Standard_Real LastParameter (const Handle(Adaptor3d_HCurve)& C);
66
67
68
69
70protected:
71
72
73
74
75
76private:
77
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80
81
82};
83
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89
90#endif // _LProp3d_CurveTool_HeaderFile