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132 lines
4.4 KiB
C++
132 lines
4.4 KiB
C++
// Created on: 1996-02-21
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// Created by: Laurent PAINNOT
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// Copyright (c) 1996-1999 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_PolygonOnTriangulation_HeaderFile
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#define _Poly_PolygonOnTriangulation_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 <TColStd_Array1OfInteger.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_PolygonOnTriangulation;
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DEFINE_STANDARD_HANDLE(Poly_PolygonOnTriangulation, MMgt_TShared)
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//! This class provides a polygon in 3D space, based on the triangulation
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//! of a surface. It may be the approximate representation of a
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//! curve on the surface, or more generally the shape.
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//! A PolygonOnTriangulation is defined by a table of
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//! nodes. Each node is an index in the table of nodes specific
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//! to a triangulation, and represents a point on the surface. If
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//! the polygon is closed, the index of 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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//! on a surface, you can associate with each of its nodes the
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//! value of the parameter of the corresponding point on the
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//! curve.represents a 3d Polygon
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class Poly_PolygonOnTriangulation : public MMgt_TShared
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{
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public:
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//! Constructs a 3D polygon on the triangulation of a shape,
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//! defined by the table of nodes, <Nodes>.
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Standard_EXPORT Poly_PolygonOnTriangulation(const TColStd_Array1OfInteger& Nodes);
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//! Constructs a 3D polygon on the triangulation of a shape, defined by:
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//! - the table of nodes, Nodes, and the table of parameters, <Parameters>.
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//! where:
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//! - a node value is an index in the table of nodes specific
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//! to an existing triangulation of a shape
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//! - and a parameter value is the value of the parameter of
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//! the corresponding point on the curve approximated by
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//! the constructed polygon.
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//! Warning
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//! The tables Nodes and Parameters must be the same size.
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//! This property is not checked at construction time.
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Standard_EXPORT Poly_PolygonOnTriangulation(const TColStd_Array1OfInteger& Nodes, const TColStd_Array1OfReal& Parameters);
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//! Creates a copy of current polygon
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Standard_EXPORT virtual Handle(Poly_PolygonOnTriangulation) 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.
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//! See more on deflection in Poly_Polygones2D.
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Standard_EXPORT void Deflection (const Standard_Real D);
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//! Returns the number of nodes for 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. A node value
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//! is an index in the table of nodes specific to an existing
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//! triangulation of a shape.
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Standard_EXPORT const TColStd_Array1OfInteger& Nodes() const;
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//! Returns true if parameters are associated with the nodes in this polygon.
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Standard_EXPORT Standard_Boolean HasParameters() const;
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//! Returns the table of the parameters associated with each node in this polygon.
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//! Warning
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//! Use the function HasParameters to check if parameters
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//! are associated with the nodes in this polygon.
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Standard_EXPORT Handle(TColStd_HArray1OfReal) Parameters() const;
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DEFINE_STANDARD_RTTIEXT(Poly_PolygonOnTriangulation,MMgt_TShared)
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protected:
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private:
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Standard_Real myDeflection;
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TColStd_Array1OfInteger myNodes;
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Handle(TColStd_HArray1OfReal) myParameters;
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};
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#include <Poly_PolygonOnTriangulation.lxx>
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#endif // _Poly_PolygonOnTriangulation_HeaderFile
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