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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.
122 lines
4.5 KiB
C++
122 lines
4.5 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_MakeCylindricalSurface_HeaderFile
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#define _GC_MakeCylindricalSurface_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_CylindricalSurface.hxx>
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class StdFail_NotDone;
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class gp_Ax2;
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class gp_Cylinder;
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class gp_Pnt;
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class gp_Ax1;
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class gp_Circ;
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//! This class implements the following algorithms used
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//! to create a CylindricalSurface from Geom.
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//! * Create a CylindricalSurface parallel to another and
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//! passing through a point.
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//! * Create a CylindricalSurface parallel to another at a
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//! distance
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//! <Dist>.
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//! * Create a CylindricalSurface passing through 3 points.
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//! * Create a CylindricalSurface by its axis and radius.
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//! * Create a cylindricalSurface by its circular base.
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//! The local coordinate system of the CylindricalSurface is defined
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//! with an axis placement (see class ElementarySurface).
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//!
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//! The "ZAxis" is the symmetry axis of the CylindricalSurface,
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//! it gives the direction of increasing parametric value V.
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//!
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//! The parametrization range is :
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//! U [0, 2*PI], V ]- infinite, + infinite[
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//!
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//! The "XAxis" and the "YAxis" define the placement plane of the
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//! surface (Z = 0, and parametric value V = 0) perpendicular to
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//! the symmetry axis. The "XAxis" defines the origin of the
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//! parameter U = 0. The trigonometric sense gives the positive
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//! orientation for the parameter U.
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class GC_MakeCylindricalSurface : public GC_Root
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! A2 defines the local coordinate system of the cylindrical surface.
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//! The "ZDirection" of A2 defines the direction of the surface's
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//! axis of symmetry.
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//! At the creation the parametrization of the surface is defined
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//! such that the normal Vector (N = D1U ^ D1V) is oriented towards
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//! the "outside region" of the surface.
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//! Warnings :
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//! It is not forbidden to create a cylindrical surface with
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//! Radius = 0.0
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//! Status is "NegativeRadius" if Radius < 0.0
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Standard_EXPORT GC_MakeCylindricalSurface(const gp_Ax2& A2, const Standard_Real Radius);
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//! Creates a CylindricalSurface from a non persistent Cylinder
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//! from package gp.
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Standard_EXPORT GC_MakeCylindricalSurface(const gp_Cylinder& C);
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//! Make a CylindricalSurface from Geom <TheCylinder>
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//! parallel to another
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//! CylindricalSurface <Cylinder> and passing through a
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//! Pnt <Point>.
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Standard_EXPORT GC_MakeCylindricalSurface(const gp_Cylinder& Cyl, const gp_Pnt& Point);
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//! Make a CylindricalSurface from Geom <TheCylinder>
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//! parallel to another
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//! CylindricalSurface <Cylinder> at the distance <Dist>
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//! which can be greater or lower than zero.
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//! The radius of the result is the absolute value of the
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//! radius of <Cyl> plus <Dist>
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Standard_EXPORT GC_MakeCylindricalSurface(const gp_Cylinder& Cyl, const Standard_Real Dist);
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//! Make a CylindricalSurface from Geom <TheCylinder>
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//! passing through 3 Pnt <P1>,<P2>,<P3>.
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//! Its axis is <P1P2> and its radius is the distance
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//! between <P3> and <P1P2>
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Standard_EXPORT GC_MakeCylindricalSurface(const gp_Pnt& P1, const gp_Pnt& P2, const gp_Pnt& P3);
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//! Make a CylindricalSurface by its axis <Axis> and radius
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//! <Radius>.
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Standard_EXPORT GC_MakeCylindricalSurface(const gp_Ax1& Axis, const Standard_Real Radius);
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//! Make a CylindricalSurface by its circular base.
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Standard_EXPORT GC_MakeCylindricalSurface(const gp_Circ& Circ);
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//! Returns the constructed cylinder.
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//! Exceptions StdFail_NotDone if no cylinder is constructed.
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Standard_EXPORT const Handle(Geom_CylindricalSurface)& Value() const;
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operator const Handle(Geom_CylindricalSurface)& () const { return Value(); }
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private:
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Handle(Geom_CylindricalSurface) TheCylinder;
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};
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#endif // _GC_MakeCylindricalSurface_HeaderFile
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