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/*=========================================================================
Program: Visualization Toolkit
Module: vtkAbstractCellLinks.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkAbstractCellLinks - an abstract base class for classes that build
// topological links from points to cells
// .SECTION Description
// vtkAbstractCellLinks is a family of supplemental objects to vtkCellArray and
// vtkCellTypes, enabling fast access from points to the cells using the
// points. vtkAbstractCellLinks is an array of links, each link representing a
// list of cell ids using a particular point. The information provided by
// this object can be used to determine neighbors and construct other local
// topological information.
//
// .SECTION See Also
// vtkCellLinks vtkStaticCellLinks vtkStaticCellLinksTemplate
#ifndef vtkAbstractCellLinks_h
#define vtkAbstractCellLinks_h
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkObject.h"
class vtkDataSet;
class vtkCellArray;
class VTKCOMMONDATAMODEL_EXPORT vtkAbstractCellLinks : public vtkObject
{
public:
// Description:
// Standard type and print methods.
vtkTypeMacro(vtkAbstractCellLinks,vtkObject);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Build the link list array. All subclasses must implement this method.
virtual void BuildLinks(vtkDataSet *data) = 0;
// Description:
// Based on the input (i.e., number of points, number of cells, and length
// of connectivity array) this helper method returns the integral type to
// use when instantiating cell link-related classes in order to properly
// represent the data. The return value is one of the types
// (VTK_ID_TYPE,VTK_INT,VTK_SHORT) defined in the file
// vtkType.h. Subclasses may choose to instantiate themselves with
// different integral types for performance and/or memory reasons.
static int GetIdType(vtkIdType maxPtId, vtkIdType maxCellId, vtkCellArray *ca);
protected:
vtkAbstractCellLinks();
virtual ~vtkAbstractCellLinks();
private:
vtkAbstractCellLinks(const vtkAbstractCellLinks&); // Not implemented.
void operator=(const vtkAbstractCellLinks&); // Not implemented.
};
#endif
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