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122 lines
4.1 KiB
C++
122 lines
4.1 KiB
C++
// Created on: 1995-03-07
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// Created by: Laurent PAINNOT
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// Copyright (c) 1995-1999 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 _Poly_Polygon3D_HeaderFile
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#define _Poly_Polygon3D_HeaderFile
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#include <Standard.hxx>
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#include <Standard_Type.hxx>
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#include <Standard_Real.hxx>
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#include <TColgp_Array1OfPnt.hxx>
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#include <TColStd_HArray1OfReal.hxx>
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#include <MMgt_TShared.hxx>
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#include <TColStd_Array1OfReal.hxx>
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#include <Standard_Integer.hxx>
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#include <Standard_Boolean.hxx>
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class Standard_NullObject;
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class Poly_Polygon3D;
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DEFINE_STANDARD_HANDLE(Poly_Polygon3D, MMgt_TShared)
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//! This class Provides a polygon in 3D space. It is generally an approximate representation of a curve.
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//! A Polygon3D is defined by a table of nodes. Each node is
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//! a 3D point. If the polygon is closed, the point of closure is
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//! repeated at the end of the table of nodes.
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//! If the polygon is an approximate representation of a curve,
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//! you can associate with each of its nodes the value of the
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//! parameter of the corresponding point on the curve.
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class Poly_Polygon3D : public MMgt_TShared
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{
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public:
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//! onstructs a 3D polygon defined by the table of points, Nodes.
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Standard_EXPORT Poly_Polygon3D(const TColgp_Array1OfPnt& Nodes);
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//! Constructs a 3D polygon defined by
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//! the table of points, Nodes, and the parallel table of
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//! parameters, Parameters, where each value of the table
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//! Parameters is the parameter of the corresponding point
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//! on the curve approximated by the constructed polygon.
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//! Warning
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//! Both the Nodes and Parameters tables must have the
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//! same bounds. This property is not checked at construction time.
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Standard_EXPORT Poly_Polygon3D(const TColgp_Array1OfPnt& Nodes, const TColStd_Array1OfReal& Parameters);
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//! Creates a copy of current polygon
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Standard_EXPORT virtual Handle(Poly_Polygon3D) Copy() const;
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//! Returns the deflection of this polygon
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Standard_EXPORT Standard_Real Deflection() const;
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//! Sets the deflection of this polygon to D. See more on deflection in Poly_Polygon2D
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Standard_EXPORT void Deflection (const Standard_Real D);
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//! Returns the number of nodes in this polygon.
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//! Note: If the polygon is closed, the point of closure is
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//! repeated at the end of its table of nodes. Thus, on a closed
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//! triangle the function NbNodes returns 4.
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Standard_Integer NbNodes() const;
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//! Returns the table of nodes for this polygon.
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Standard_EXPORT const TColgp_Array1OfPnt& Nodes() const;
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//! Returns the table of the parameters associated with each node in this polygon.
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//! HasParameters function checks if parameters are associated with the nodes of this polygon.
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Standard_EXPORT Standard_Boolean HasParameters() const;
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//! Returns true if parameters are associated with the nodes
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//! in this polygon.
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Standard_EXPORT const TColStd_Array1OfReal& Parameters() const;
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//! Returns the table of the parameters associated with each node in this polygon.
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//! ChangeParameters function returnes the array as shared. Therefore if the table is selected by
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//! reference you can, by simply modifying it, directly modify
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//! the data structure of this polygon.
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Standard_EXPORT TColStd_Array1OfReal& ChangeParameters() const;
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DEFINE_STANDARD_RTTIEXT(Poly_Polygon3D,MMgt_TShared)
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protected:
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private:
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Standard_Real myDeflection;
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TColgp_Array1OfPnt myNodes;
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Handle(TColStd_HArray1OfReal) myParameters;
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};
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#include <Poly_Polygon3D.lxx>
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#endif // _Poly_Polygon3D_HeaderFile
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