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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.
110 lines
3.8 KiB
C++
110 lines
3.8 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 _GC_MakeCircle_HeaderFile
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#define _GC_MakeCircle_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 <GC_Root.hxx>
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#include <Geom_Circle.hxx>
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class StdFail_NotDone;
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class gp_Circ;
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class gp_Ax2;
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class gp_Pnt;
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class gp_Dir;
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class gp_Ax1;
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//! This class implements the following algorithms used
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//! to create Cirlec from Geom.
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//!
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//! * Create a Circle parallel to another and passing
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//! though a point.
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//! * Create a Circle parallel to another at the distance
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//! Dist.
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//! * Create a Circle passing through 3 points.
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//! * Create a Circle with its center and the normal of its
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//! plane and its radius.
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//! * Create a Circle with its axis and radius.
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//! The circle's parameter is the angle (Radian).
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//! The parametrization range is [0,2*PI].
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//! The circle is a closed and periodic curve.
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//! The center of the circle is the Location point of its axis
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//! placement. The XDirection of the axis placement defines the
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//! origin of the parametrization.
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class GC_MakeCircle : public GC_Root
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! creates a circle from a non persistent circle C by its conversion.
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Standard_EXPORT GC_MakeCircle(const gp_Circ& C);
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//! A2 is the local coordinates system of the circle.
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//! It is not forbidden to create a circle with Radius = 0.0
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//! Status is "NegativeRadius" if Radius < 0.
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Standard_EXPORT GC_MakeCircle(const gp_Ax2& A2, const Standard_Real Radius);
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//! Make a Circle from Geom <TheCirc> parallel to another
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//! Circ <Circ> with a distance <Dist>.
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//! If Dist is greater than zero the result is enclosing
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//! the circle <Circ>, else the result is enclosed by the
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//! circle <Circ>.
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Standard_EXPORT GC_MakeCircle(const gp_Circ& Circ, const Standard_Real Dist);
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//! Make a Circle from Geom <TheCirc> parallel to another
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//! Circ <Circ> and passing through a Pnt <Point>.
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Standard_EXPORT GC_MakeCircle(const gp_Circ& Circ, const gp_Pnt& Point);
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//! Make a Circ from gp <TheCirc> passing through 3
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//! Pnt2d <P1>,<P2>,<P3>.
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Standard_EXPORT GC_MakeCircle(const gp_Pnt& P1, const gp_Pnt& P2, const gp_Pnt& P3);
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//! Make a Circle from Geom <TheCirc> with its center
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//! <Center> and the normal of its plane <Norm> and
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//! its radius <Radius>.
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Standard_EXPORT GC_MakeCircle(const gp_Pnt& Center, const gp_Dir& Norm, const Standard_Real Radius);
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//! Make a Circle from Geom <TheCirc> with its center
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//! <Center> and the normal of its plane defined by the
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//! two points <Center> and <PtAxis> and its radius <Radius>.
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Standard_EXPORT GC_MakeCircle(const gp_Pnt& Center, const gp_Pnt& PtAxis, const Standard_Real Radius);
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//! Make a Circle from Geom <TheCirc> with its center
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//! <Center> and its radius <Radius>.
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Standard_EXPORT GC_MakeCircle(const gp_Ax1& Axis, const Standard_Real Radius);
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//! Returns the constructed circle.
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//! Exceptions
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//! StdFail_NotDone if no circle is constructed.
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Standard_EXPORT const Handle(Geom_Circle)& Value() const;
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operator const Handle(Geom_Circle)& () const { return Value(); }
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private:
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Handle(Geom_Circle) TheCircle;
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};
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#endif // _GC_MakeCircle_HeaderFile
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