---

Graphics/vtkQuadricDecimation.h

Go to the documentation of this file.

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkQuadricDecimation.h,v $
  Language:  C++

  Copyright (c) 1993-2002 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 __vtkQuadricDecimation_h
#define __vtkQuadricDecimation_h

#include "vtkPolyDataToPolyDataFilter.h"

class vtkEdgeTable;
class vtkIdList;
class vtkPointData;
class vtkPriorityQueue;

class VTK_GRAPHICS_EXPORT vtkQuadricDecimation : public vtkPolyDataToPolyDataFilter
{
public:
  vtkTypeRevisionMacro(vtkQuadricDecimation, vtkPolyDataToPolyDataFilter);
  void PrintSelf(ostream& os, vtkIndent indent);

  static vtkQuadricDecimation *New();


  vtkSetMacro(MaximumCost, float);
  vtkGetMacro(MaximumCost, float);
  

  vtkSetMacro(MaximumCollapsedEdges, int);
  vtkGetMacro(MaximumCollapsedEdges, int);

  vtkPolyData *GetTestOutput() {return this->GetOutput(1);}
  
protected:
  vtkQuadricDecimation();
  ~vtkQuadricDecimation();

  void Execute();

  void ComputeQuadric(vtkIdType pointId);

  void AddQuadric(vtkIdType oldPtId, vtkIdType newPtId);
  
  float ComputeCost(vtkIdType edgeId, float x[3], vtkPointData *pd);

  void FindAffectedEdges(vtkIdType p1Id, vtkIdType p2Id, vtkIdList *edges);
  
  vtkIdType GetEdgeCellId(vtkIdType p1Id, vtkIdType p2Id);
  
  void GetAttributeComponents();
  
  float MaximumCost;
  int MaximumCollapsedEdges;
  int NumberOfCollapsedEdges;
  vtkEdgeTable *Edges;
  vtkIdList *EndPoint1List;
  vtkIdList *EndPoint2List;
  vtkPriorityQueue *EdgeCosts;

  //BTX
  class ErrorQuadric
  {
  public:
    float *Quadric;
  };
  //ETX
  ErrorQuadric *ErrorQuadrics;

  int AttributeComponents[6];
  int NumberOfComponents;
  vtkPolyData *Mesh;
private:
  vtkQuadricDecimation(const vtkQuadricDecimation&);  // Not implemented.
  void operator=(const vtkQuadricDecimation&);  // Not implemented.
};

#endif

Generated on Fri Mar 7 15:40:12 2003 for VTK by Doxygen 1.2.18