vtkImageBSplineInternals.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkImageBSplineInternals.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 vtkImageBSplineInternals_h
#define vtkImageBSplineInternals_h
 
#include "vtkImagingCoreModule.h" // For export macro
#include "vtkSystemIncludes.h"
 
class VTKIMAGINGCORE_EXPORT vtkImageBSplineInternals
{
public:
  static int GetPoleValues(double poles[4], long& numPoles, long degree);
 
  static void ConvertToInterpolationCoefficients(double data[], long size, long border,
    double poles[4], long numPoles, double tol) VTK_SIZEHINT(data, size);
 
 
  static int GetInterpolationWeights(double weights[10], double w, long degree);
  static int GetInterpolationWeights(float weights[10], double w, long degree);
 
 
  static int InterpolatedValue(const double* coeffs, double* value, long width, long height,
    long slices, long depth, double x, double y, double z, long degree, long border);
  static int InterpolatedValue(const float* coeffs, float* value, long width, long height,
    long slices, long depth, double x, double y, double z, long degree, long border);
 
protected:
  vtkImageBSplineInternals() = default;
  ~vtkImageBSplineInternals() = default;
 
  static double InitialCausalCoefficient(
    double data[], long size, long border, double pole, double tol);
 
  static double InitialAntiCausalCoefficient(
    double data[], long size, long border, double pole, double tol);
 
private:
  vtkImageBSplineInternals(const vtkImageBSplineInternals&) = delete;
  void operator=(const vtkImageBSplineInternals&) = delete;
};
 
#endif
// VTK-HeaderTest-Exclude: vtkImageBSplineInternals.h