0026838: Using GeomEvaluators for calculation of values of curves
[occt.git] / src / GeomEvaluator / GeomEvaluator_Curve.hxx
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d660a72a 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_Curve_HeaderFile
16#define _GeomEvaluator_Curve_HeaderFile
17
18#include <Standard_Transient.hxx>
19#include <Standard_Type.hxx>
20
21class gp_Pnt;
22class gp_Vec;
23
24//! Interface for calculation of values and derivatives for different kinds of curves in 3D.
25//! Works both with adaptors and curves.
26class GeomEvaluator_Curve : public Standard_Transient
27{
28public:
29 GeomEvaluator_Curve() {}
30
31 //! Value of 3D curve
32 virtual void D0(const Standard_Real theU,
33 gp_Pnt& theValue) const = 0;
34 //! Value and first derivatives of curve
35 virtual void D1(const Standard_Real theU,
36 gp_Pnt& theValue, gp_Vec& theD1) const = 0;
37 //! Value, first and second derivatives of curve
38 virtual void D2(const Standard_Real theU,
39 gp_Pnt& theValue, gp_Vec& theD1, gp_Vec& theD2) const = 0;
40 //! Value, first, second and third derivatives of curve
41 virtual void D3(const Standard_Real theU,
42 gp_Pnt& theValue, gp_Vec& theD1, gp_Vec& theD2, gp_Vec& theD3) const = 0;
43 //! Calculates N-th derivatives of curve, where N = theDerU. Raises if N < 1
44 virtual gp_Vec DN(const Standard_Real theU,
45 const Standard_Integer theDerU) const = 0;
46
47 DEFINE_STANDARD_RTTI(GeomEvaluator_Curve, Standard_Transient)
48};
49
50DEFINE_STANDARD_HANDLE(GeomEvaluator_Curve, Standard_Transient)
51
52
53#endif // _GeomEvaluator_Curve_HeaderFile