dox/Filtering/vtkGeometricErrorMetric.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkGeometricErrorMetric.h,v $

  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 __vtkGeometricErrorMetric_h
#define __vtkGeometricErrorMetric_h

#include "vtkGenericSubdivisionErrorMetric.h"

class vtkGenericDataSet;

class VTK_FILTERING_EXPORT vtkGeometricErrorMetric : public vtkGenericSubdivisionErrorMetric
{
public:
  static vtkGeometricErrorMetric *New();
  

  vtkTypeRevisionMacro(vtkGeometricErrorMetric,vtkGenericSubdivisionErrorMetric);
  void PrintSelf(ostream& os, vtkIndent indent);
  

  vtkGetMacro(AbsoluteGeometricTolerance, double);
  
  void SetAbsoluteGeometricTolerance(double value);
  

  void SetRelativeGeometricTolerance(double value,
                                     vtkGenericDataSet *ds);
  

  int RequiresEdgeSubdivision(double *leftPoint, double *midPoint, double *rightPoint,
                              double alpha);


  double GetError(double *leftPoint, double *midPoint,
                  double *rightPoint, double alpha);
  
  int GetRelative();
  
protected:
  vtkGeometricErrorMetric();
  virtual ~vtkGeometricErrorMetric();
  

  double Distance2LinePoint(double x[3],
                            double y[3],
                            double z[3]);
  
  double AbsoluteGeometricTolerance;
  double SmallestSize;
  int Relative; // Control the type of output of GetError()
  
private:
  vtkGeometricErrorMetric(const vtkGeometricErrorMetric&);  // Not implemented.
  void operator=(const vtkGeometricErrorMetric&);  // Not implemented.
};

#endif

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