vtkUnstructuredGridVolumeRayIntegrator.h

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

  Program:   Visualization Toolkit
  Module:    vtkUnstructuredGridVolumeRayIntegrator.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 vtkUnstructuredGridVolumeRayIntegrator_h
#define vtkUnstructuredGridVolumeRayIntegrator_h

#include "vtkRenderingVolumeModule.h" // For export macro
#include "vtkObject.h"

class vtkVolume;
class vtkDoubleArray;
class vtkDataArray;

class VTKRENDERINGVOLUME_EXPORT vtkUnstructuredGridVolumeRayIntegrator : public vtkObject
{
public:
  vtkTypeMacro(vtkUnstructuredGridVolumeRayIntegrator,vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  virtual void Initialize(vtkVolume *volume,
                          vtkDataArray* scalars) = 0;

  virtual void Integrate(vtkDoubleArray *intersectionLengths,
                         vtkDataArray *nearIntersections,
                         vtkDataArray *farIntersections,
                         float color[4]) = 0;

protected:
  vtkUnstructuredGridVolumeRayIntegrator();
  ~vtkUnstructuredGridVolumeRayIntegrator() override;

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

#endif