vtkGeometricErrorMetric.h

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

  Program:   Visualization Toolkit
  Module:    vtkGeometricErrorMetric.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 vtkGeometricErrorMetric_h
#define vtkGeometricErrorMetric_h

#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkGenericSubdivisionErrorMetric.h"

class vtkGenericDataSet;

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


  vtkTypeMacro(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