vtkSphericalDirectionEncoder.h

Go to the documentation of this file.

/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkSphericalDirectionEncoder.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 vtkSphericalDirectionEncoder_h
#define vtkSphericalDirectionEncoder_h
 
#include "vtkDirectionEncoder.h"
#include "vtkRenderingVolumeModule.h" // For export macro
 
class VTKRENDERINGVOLUME_EXPORT vtkSphericalDirectionEncoder : public vtkDirectionEncoder
{
public:
  vtkTypeMacro(vtkSphericalDirectionEncoder, vtkDirectionEncoder);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  static vtkSphericalDirectionEncoder* New();
 
  int GetEncodedDirection(float n[3]) override;
 
  float* GetDecodedGradient(int value) VTK_SIZEHINT(3) override;
 
  int GetNumberOfEncodedDirections(void) override { return 65536; }
 
  float* GetDecodedGradientTable(void) override { return &(this->DecodedGradientTable[0]); }
 
protected:
  vtkSphericalDirectionEncoder();
  ~vtkSphericalDirectionEncoder() override;
 
  static float DecodedGradientTable[65536 * 3];
 
 
  static void InitializeDecodedGradientTable();
  static int DecodedGradientTableInitialized;
 
private:
  vtkSphericalDirectionEncoder(const vtkSphericalDirectionEncoder&) = delete;
  void operator=(const vtkSphericalDirectionEncoder&) = delete;
};
 
#endif