vtkShepardKernel.h

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

  Program:   Visualization Toolkit
  Module:    vtkShepardKernel.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 vtkShepardKernel_h
#define vtkShepardKernel_h

#include "vtkFiltersPointsModule.h" // For export macro
#include "vtkGeneralizedKernel.h"

class vtkIdList;
class vtkDoubleArray;


class VTKFILTERSPOINTS_EXPORT vtkShepardKernel : public vtkGeneralizedKernel
{
public:

  static vtkShepardKernel *New();
  vtkTypeMacro(vtkShepardKernel,vtkGeneralizedKernel);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  // Re-use any superclass signatures that we don't override.
  using vtkGeneralizedKernel::ComputeWeights;

  vtkIdType ComputeWeights(double x[3], vtkIdList *pIds,
                                   vtkDoubleArray *prob, vtkDoubleArray *weights) override;


  vtkSetClampMacro(PowerParameter,double,0.001,100);
  vtkGetMacro(PowerParameter,double);

protected:
  vtkShepardKernel();
  ~vtkShepardKernel() override;

  // The exponent of the weights, =2 by default (l2 norm)
  double PowerParameter;

private:
  vtkShepardKernel(const vtkShepardKernel&) = delete;
  void operator=(const vtkShepardKernel&) = delete;
};

#endif