0030694: Data Exchange - support non-standard GB2312-encoded STEP files
[occt.git] / src / GeomEvaluator / GeomEvaluator_SurfaceOfExtrusion.hxx
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6b84c3f7 1// Created on: 2015-09-21
2// Copyright (c) 2015 OPEN CASCADE SAS
3//
4// This file is part of Open CASCADE Technology software library.
5//
6// This library is free software; you can redistribute it and/or modify it under
7// the terms of the GNU Lesser General Public License version 2.1 as published
8// by the Free Software Foundation, with special exception defined in the file
9// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
10// distribution for complete text of the license and disclaimer of any warranty.
11//
12// Alternatively, this file may be used under the terms of Open CASCADE
13// commercial license or contractual agreement.
14
15#ifndef _GeomEvaluator_SurfaceOfExtrusion_HeaderFile
16#define _GeomEvaluator_SurfaceOfExtrusion_HeaderFile
17
18#include <GeomEvaluator_Surface.hxx>
19
20#include <Geom_Curve.hxx>
21#include <gp_Dir.hxx>
22
23class Adaptor3d_HCurve;
24
25//! Allows to calculate values and derivatives for surfaces of linear extrusion
26class GeomEvaluator_SurfaceOfExtrusion : public GeomEvaluator_Surface
27{
28public:
29 //! Initialize evaluator by surface
30 Standard_EXPORT GeomEvaluator_SurfaceOfExtrusion(const Handle(Geom_Curve)& theBase,
31 const gp_Dir& theExtrusionDir);
32 //! Initialize evaluator by surface adaptor
33 Standard_EXPORT GeomEvaluator_SurfaceOfExtrusion(const Handle(Adaptor3d_HCurve)& theBase,
34 const gp_Dir& theExtrusionDir);
35
36 ///! Changes the direction of extrusion
37 void SetDirection(const gp_Dir& theDirection)
38 { myDirection = theDirection; }
39
40 //! Value of surface
41 Standard_EXPORT void D0(const Standard_Real theU, const Standard_Real theV,
42 gp_Pnt& theValue) const Standard_OVERRIDE;
43 //! Value and first derivatives of surface
44 Standard_EXPORT void D1(const Standard_Real theU, const Standard_Real theV,
45 gp_Pnt& theValue, gp_Vec& theD1U, gp_Vec& theD1V) const Standard_OVERRIDE;
46 //! Value, first and second derivatives of surface
47 Standard_EXPORT void D2(const Standard_Real theU, const Standard_Real theV,
48 gp_Pnt& theValue, gp_Vec& theD1U, gp_Vec& theD1V,
49 gp_Vec& theD2U, gp_Vec& theD2V, gp_Vec& theD2UV) const Standard_OVERRIDE;
50 //! Value, first, second and third derivatives of surface
51 Standard_EXPORT void D3(const Standard_Real theU, const Standard_Real theV,
52 gp_Pnt& theValue, gp_Vec& theD1U, gp_Vec& theD1V,
53 gp_Vec& theD2U, gp_Vec& theD2V, gp_Vec& theD2UV,
54 gp_Vec& theD3U, gp_Vec& theD3V,
55 gp_Vec& theD3UUV, gp_Vec& theD3UVV) const Standard_OVERRIDE;
56 //! Calculates N-th derivatives of surface, where N = theDerU + theDerV.
57 //!
58 //! Raises if N < 1 or theDerU < 0 or theDerV < 0
59 Standard_EXPORT gp_Vec DN(const Standard_Real theU,
60 const Standard_Real theV,
61 const Standard_Integer theDerU,
62 const Standard_Integer theDerV) const Standard_OVERRIDE;
63
92efcf78 64 DEFINE_STANDARD_RTTIEXT(GeomEvaluator_SurfaceOfExtrusion,GeomEvaluator_Surface)
6b84c3f7 65
66private:
67 //! Shift the point along direction to the given distance (theShift)
68 void Shift(const Standard_Real theShift, gp_Pnt& thePoint) const
69 {
70 thePoint.ChangeCoord() += myDirection.XYZ() * theShift;
71 }
72
73private:
74 Handle(Geom_Curve) myBaseCurve;
75 Handle(Adaptor3d_HCurve) myBaseAdaptor;
76
77 gp_Dir myDirection;
78};
79
80DEFINE_STANDARD_HANDLE(GeomEvaluator_SurfaceOfExtrusion, GeomEvaluator_Surface)
81
82
83#endif // _GeomEvaluator_SurfaceOfExtrusion_HeaderFile