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167 lines
4.4 KiB
C++
167 lines
4.4 KiB
C++
// Created on: 2007-12-08
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// Created by: Alexander GRIGORIEV
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// Copyright (c) 2007-2014 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_CoherentNode_HeaderFile
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#define Poly_CoherentNode_HeaderFile
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#include <gp_XYZ.hxx>
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#include <Poly_CoherentTriPtr.hxx>
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#include <Precision.hxx>
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class NCollection_BaseAllocator;
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/**
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* Node of coherent triangulation. Contains:
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* <ul>
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* <li>Coordinates of a 3D point defining the node location</li>
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* <li>2D point coordinates</li>
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* <li>List of triangles that use this Node</li>
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* <li>Integer index, normally the index of the node in the original
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* triangulation</li>
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* </ul>
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*/
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class Poly_CoherentNode : public gp_XYZ
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{
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public:
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// ---------- PUBLIC METHODS ----------
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/**
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* Empty constructor.
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*/
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inline Poly_CoherentNode ()
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: gp_XYZ (0., 0., 0.),
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myTriangles (0L),
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myIndex (-1)
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{ myUV[0] = Precision::Infinite(); myUV[1] = Precision::Infinite(); }
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/**
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* Constructor.
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*/
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inline Poly_CoherentNode (const gp_XYZ& thePnt)
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: gp_XYZ (thePnt),
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myTriangles (0L),
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myIndex (-1)
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{ myUV[0] = Precision::Infinite(); myUV[1] = Precision::Infinite(); myNormal[0] = 0.f; myNormal[1] = 0.f; myNormal[2] = 0.f; }
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/**
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* Set the UV coordinates of the Node.
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*/
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inline void SetUV (const Standard_Real theU,
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const Standard_Real theV)
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{ myUV[0] = theU; myUV[1] = theV; }
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/**
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* Get U coordinate of the Node.
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*/
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inline Standard_Real GetU () const
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{ return myUV[0]; }
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/**
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* Get V coordinate of the Node.
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*/
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inline Standard_Real GetV () const
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{ return myUV[1]; }
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/**
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* Define the normal vector in the Node.
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*/
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Standard_EXPORT void SetNormal (const gp_XYZ& theVector);
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/**
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* Query if the Node contains a normal vector.
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*/
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inline Standard_Boolean HasNormal () const
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{ return ((myNormal[0]*myNormal[0] + myNormal[1]*myNormal[1] +
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myNormal[2]*myNormal[2]) > Precision::Confusion()); }
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/**
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* Get the stored normal in the node.
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*/
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inline gp_XYZ GetNormal () const
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{ return gp_XYZ (myNormal[0], myNormal[1], myNormal[2]); }
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/**
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* Set the value of node Index.
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*/
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inline void SetIndex (const Standard_Integer theIndex)
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{ myIndex = theIndex; }
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/**
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* Get the value of node Index.
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*/
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inline Standard_Integer GetIndex () const
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{ return myIndex; }
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/**
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* Check if this is a free node, i.e., a node without a single
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* incident triangle.
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*/
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inline Standard_Boolean IsFreeNode () const
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{ return myTriangles == 0L; }
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/**
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* Reset the Node to void.
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*/
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Standard_EXPORT void Clear (const Handle(NCollection_BaseAllocator)&);
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/**
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* Connect a triangle to this Node.
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*/
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Standard_EXPORT void AddTriangle
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(const Poly_CoherentTriangle& theTri,
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const Handle(NCollection_BaseAllocator)& theA);
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/**
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* Disconnect a triangle from this Node.
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*/
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Standard_EXPORT Standard_Boolean
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RemoveTriangle
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(const Poly_CoherentTriangle& theTri,
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const Handle(NCollection_BaseAllocator)& theA);
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/**
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* Create an iterator of incident triangles.
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*/
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inline Poly_CoherentTriPtr::Iterator
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TriangleIterator () const
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{ return * myTriangles; }
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Standard_EXPORT void Dump (Standard_OStream& theStream) const;
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// /**
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// * Destructor.
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// */
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// Standard_EXPORT virtual ~Poly_CoherentNode ();
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protected:
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// ---------- PROTECTED METHODS ----------
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private:
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// ---------- PRIVATE FIELDS ----------
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Standard_Real myUV[2];
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Poly_CoherentTriPtr * myTriangles;
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Standard_Integer myIndex;
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Standard_ShortReal myNormal[3];
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};
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#endif
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