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4796758e8d
Copy constructor and assignment operator from handle of derived type is added in handle class. They are enabled only if macro OCC_HANDLE_NOCASTS is defined, and operators of cast of handle to reference to handle to base type are disabled in that case. Useless type casts to handle to base type are removed in GC and GCE2d classes. Code returning reference to handle from function is corrected to return it either by value or as reference to handle of actual type.
74 lines
2.9 KiB
C++
74 lines
2.9 KiB
C++
// Created on: 1992-09-28
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// Created by: Remi GILET
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// Copyright (c) 1992-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _GCE2d_MakeArcOfHyperbola_HeaderFile
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#define _GCE2d_MakeArcOfHyperbola_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <GCE2d_Root.hxx>
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#include <Geom2d_TrimmedCurve.hxx>
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class StdFail_NotDone;
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class gp_Hypr2d;
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class gp_Pnt2d;
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//! Implements construction algorithms for an arc of
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//! hyperbola in the plane. The result is a Geom2d_TrimmedCurve curve.
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//! A MakeArcOfHyperbola object provides a framework for:
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//! - defining the construction of the arc of hyperbola,
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//! - implementing the construction algorithm, and
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//! - consulting the results. In particular, the Value
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//! function returns the constructed arc of hyperbola.
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class GCE2d_MakeArcOfHyperbola : public GCE2d_Root
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Makes an arc of Hyperbola (TrimmedCurve from Geom2d) from
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//! a Hyperbola between two parameters Alpha1 and Alpha2.
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Standard_EXPORT GCE2d_MakeArcOfHyperbola(const gp_Hypr2d& Hypr, const Standard_Real Alpha1, const Standard_Real Alpha2, const Standard_Boolean Sense = Standard_True);
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//! Makes an arc of Hyperbola (TrimmedCurve from Geom2d) from
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//! a Hyperbola between point <P> and the parameter
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//! Alpha.
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Standard_EXPORT GCE2d_MakeArcOfHyperbola(const gp_Hypr2d& Hypr, const gp_Pnt2d& P, const Standard_Real Alpha, const Standard_Boolean Sense = Standard_True);
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//! Makes an arc of Hyperbola (TrimmedCurve from Geom2d) from
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//! a Hyperbola between two points P1 and P2.
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//! Note: the orientation of the arc of hyperbola is:
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//! - the trigonometric sense if Sense is not defined or
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//! is true (default value), or
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//! - the opposite sense if Sense is false.
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//! - IsDone always returns true.
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Standard_EXPORT GCE2d_MakeArcOfHyperbola(const gp_Hypr2d& Hypr, const gp_Pnt2d& P1, const gp_Pnt2d& P2, const Standard_Boolean Sense = Standard_True);
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//! Returns the constructed arc of hyperbola.
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Standard_EXPORT const Handle(Geom2d_TrimmedCurve)& Value() const;
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operator const Handle(Geom2d_TrimmedCurve)& () const { return Value(); }
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private:
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Handle(Geom2d_TrimmedCurve) TheArc;
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};
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#endif // _GCE2d_MakeArcOfHyperbola_HeaderFile
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