vtkStaticCellLinksTemplate.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkStaticCellLinksTemplate.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.

=========================================================================*/
#ifndef vtkStaticCellLinksTemplate_h
#define vtkStaticCellLinksTemplate_h

class vtkDataSet;
class vtkPolyData;
class vtkUnstructuredGrid;
class vtkCellArray;


template <typename TIds>
class vtkStaticCellLinksTemplate
{
public:

  vtkStaticCellLinksTemplate() :
    LinksSize(0), NumPts(0), NumCells(0), Links(NULL), Offsets(NULL)
    {
    }


  virtual ~vtkStaticCellLinksTemplate()
    {this->Initialize();}

  virtual void Initialize();

  virtual void BuildLinks(vtkDataSet *ds);

  void BuildLinks(vtkPolyData *pd);

  void BuildLinks(vtkUnstructuredGrid *ugrid);


  TIds GetNumberOfCells(vtkIdType ptId)
    {
      return (this->Offsets[ptId+1] - this->Offsets[ptId]);
    }


  const TIds *GetCells(vtkIdType ptId)
    {
      return this->Links + this->Offsets[ptId];
    }

protected:
  // The various templated data members
  TIds LinksSize;
  TIds NumPts;
  TIds NumCells;

  // These point to the core data structures
  TIds *Links; //contiguous runs of cell ids
  TIds *Offsets; //offsets for each point into the link array

private:
  vtkStaticCellLinksTemplate(const vtkStaticCellLinksTemplate&);  // Not implemented.
  void operator=(const vtkStaticCellLinksTemplate&);  // Not implemented.

};

#include "vtkStaticCellLinksTemplate.txx"

#endif
// VTK-HeaderTest-Exclude: vtkStaticCellLinksTemplate.h