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114 lines
3.6 KiB
C++
114 lines
3.6 KiB
C++
// Created on: 1991-10-04
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// Created by: Remi GILET
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// Copyright (c) 1991-1999 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 _GccInt_Bisec_HeaderFile
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#define _GccInt_Bisec_HeaderFile
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#include <Standard.hxx>
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#include <Standard_Type.hxx>
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#include <Standard_Transient.hxx>
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#include <GccInt_IType.hxx>
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class Standard_DomainError;
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class gp_Pnt2d;
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class gp_Lin2d;
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class gp_Circ2d;
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class gp_Hypr2d;
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class gp_Parab2d;
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class gp_Elips2d;
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class GccInt_Bisec;
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DEFINE_STANDARD_HANDLE(GccInt_Bisec, Standard_Transient)
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//! The deferred class GccInt_Bisec is the root class for
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//! elementary bisecting loci between two simple geometric
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//! objects (i.e. circles, lines or points).
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//! Bisecting loci between two geometric objects are such
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//! that each of their points is at the same distance from the
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//! two geometric objects. It is typically a curve, such as a
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//! line, circle or conic.
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//! Generally there is more than one elementary object
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//! which is the solution to a bisecting loci problem: each
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//! solution is described with one elementary bisecting
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//! locus. For example, the bisectors of two secant straight
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//! lines are two perpendicular straight lines.
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//! The GccInt package provides concrete implementations
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//! of the following elementary derived bisecting loci:
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//! - lines, circles, ellipses, hyperbolas and parabolas, and
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//! - points (not used in this context).
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//! The GccAna package provides numerous algorithms for
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//! computing the bisecting loci between circles, lines or
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//! points, whose solutions are these types of elementary bisecting locus.
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class GccInt_Bisec : public Standard_Transient
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{
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public:
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//! Returns the type of bisecting object (line, circle,
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//! parabola, hyperbola, ellipse, point).
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Standard_EXPORT virtual GccInt_IType ArcType() const = 0;
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//! Returns the bisecting line when ArcType returns Pnt.
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//! An exception DomainError is raised if ArcType is not a Pnt.
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Standard_EXPORT virtual gp_Pnt2d Point() const;
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//! Returns the bisecting line when ArcType returns Lin.
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//! An exception DomainError is raised if ArcType is not a Lin.
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Standard_EXPORT virtual gp_Lin2d Line() const;
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//! Returns the bisecting line when ArcType returns Cir.
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//! An exception DomainError is raised if ArcType is not a Cir.
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Standard_EXPORT virtual gp_Circ2d Circle() const;
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//! Returns the bisecting line when ArcType returns Hpr.
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//! An exception DomainError is raised if ArcType is not a Hpr.
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Standard_EXPORT virtual gp_Hypr2d Hyperbola() const;
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//! Returns the bisecting line when ArcType returns Par.
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//! An exception DomainError is raised if ArcType is not a Par.
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Standard_EXPORT virtual gp_Parab2d Parabola() const;
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//! Returns the bisecting line when ArcType returns Ell.
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//! An exception DomainError is raised if ArcType is not an Ell.
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Standard_EXPORT virtual gp_Elips2d Ellipse() const;
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DEFINE_STANDARD_RTTIEXT(GccInt_Bisec,Standard_Transient)
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protected:
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private:
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};
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#endif // _GccInt_Bisec_HeaderFile
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