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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.
86 lines
3.4 KiB
C++
86 lines
3.4 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_MakeTrimmedCone_HeaderFile
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#define _GC_MakeTrimmedCone_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_RectangularTrimmedSurface.hxx>
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class StdFail_NotDone;
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class gp_Pnt;
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//! Implements construction algorithms for a trimmed
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//! cone limited by two planes orthogonal to its axis. The
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//! result is a Geom_RectangularTrimmedSurface surface.
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//! A MakeTrimmedCone provides a framework for:
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//! - defining the construction of the trimmed cone,
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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 trimmed cone.
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class GC_MakeTrimmedCone : public GC_Root
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Make a RectangularTrimmedSurface <TheCone> from Geom
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//! It is trimmed by P3 and P4.
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//! Its axis is <P1P2> and the radius of its base is
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//! the distance between <P3> and <P1P2>.
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//! The distance between <P4> and <P1P2> is the radius of
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//! the section passing through <P4>.
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//! An error iss raised if <P1>,<P2>,<P3>,<P4> are
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//! colinear or if <P3P4> is perpendicular to <P1P2> or
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//! <P3P4> is colinear to <P1P2>.
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Standard_EXPORT GC_MakeTrimmedCone(const gp_Pnt& P1, const gp_Pnt& P2, const gp_Pnt& P3, const gp_Pnt& P4);
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//! Make a RectangularTrimmedSurface from Geom <TheCone>
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//! from a cone and trimmed by two points P1 and P2 and
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//! the two radius <R1> and <R2> of the sections passing
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//! through <P1> an <P2>.
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//! Warning
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//! If an error occurs (that is, when IsDone returns
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//! false), the Status function returns:
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//! - gce_ConfusedPoints if points P1 and P2, or P3 and P4, are coincident;
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//! - gce_NullAngle if:
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//! - the lines joining P1 to P2 and P3 to P4 are parallel, or
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//! - R1 and R2 are equal (i.e. their difference is less than gp::Resolution());
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//! - gce_NullRadius if:
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//! - the line joining P1 to P2 is perpendicular to the line joining P3 to P4, or
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//! - the points P1, P2, P3 and P4 are collinear;
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//! - gce_NegativeRadius if R1 or R2 is negative; or
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//! - gce_NullAxis if points P1 and P2 are coincident (2nd syntax only).
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Standard_EXPORT GC_MakeTrimmedCone(const gp_Pnt& P1, const gp_Pnt& P2, const Standard_Real R1, const Standard_Real R2);
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//! Returns the constructed trimmed cone.
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//! StdFail_NotDone if no trimmed cone is constructed.
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Standard_EXPORT const Handle(Geom_RectangularTrimmedSurface)& Value() const;
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operator const Handle(Geom_RectangularTrimmedSurface)& () const { return Value(); }
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private:
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Handle(Geom_RectangularTrimmedSurface) TheCone;
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};
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#endif // _GC_MakeTrimmedCone_HeaderFile
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