---

Rendering/vtkVolumeTextureMapper2D.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkVolumeTextureMapper2D.h,v $
  Language:  C++

  Copyright (c) 1993-2002 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 __vtkVolumeTextureMapper2D_h
#define __vtkVolumeTextureMapper2D_h

#include "vtkVolumeTextureMapper.h"

class VTK_RENDERING_EXPORT vtkVolumeTextureMapper2D : public vtkVolumeTextureMapper
{
public:
  vtkTypeRevisionMacro(vtkVolumeTextureMapper2D,vtkVolumeTextureMapper);
  void PrintSelf( ostream& os, vtkIndent indent );

  static vtkVolumeTextureMapper2D *New();
  

  vtkSetVector2Macro( TargetTextureSize, int );
  vtkGetVector2Macro( TargetTextureSize, int );
  

  vtkSetMacro( MaximumNumberOfPlanes, int );
  vtkGetMacro( MaximumNumberOfPlanes, int );


  vtkSetMacro( MaximumStorageSize, int );
  vtkGetMacro( MaximumStorageSize, int );
  
//BTX

  virtual void Render(vtkRenderer *, vtkVolume *) {};

  virtual void RenderQuads( int vtkNotUsed(count),
                            float *vtkNotUsed(v), float *vtkNotUsed(t),
                            unsigned char *vtkNotUsed(texture),
                            int vtkNotUsed(size)[2],
                            int vtkNotUsed(reverseFlag)) {};

  int GetInternalSkipFactor() {return this->InternalSkipFactor;};
  
  int *GetAxisTextureSize() {return &(this->AxisTextureSize[0][0]);};

  int GetSaveTextures() {return this->SaveTextures;};

  unsigned char *GetTexture() {return this->Texture;};
  
//ETX


protected:
  vtkVolumeTextureMapper2D();
  ~vtkVolumeTextureMapper2D();

  void InitializeRender( vtkRenderer *ren, vtkVolume *vol )
    {this->InitializeRender( ren, vol, -1 );}
  
  void InitializeRender( vtkRenderer *ren, vtkVolume *vol, int majorDirection );

  void GenerateTexturesAndRenderQuads( vtkRenderer *ren, vtkVolume *vol );

  int  MajorDirection;
  int  TargetTextureSize[2];

  int  MaximumNumberOfPlanes;
  int  InternalSkipFactor;
  int  MaximumStorageSize;
  
  unsigned char  *Texture;
  int             TextureSize;
  int             SaveTextures;
  vtkTimeStamp    TextureMTime;
  
  int             AxisTextureSize[3][3];
  void            ComputeAxisTextureSize( int axis, int *size );
  
  void           RenderSavedTexture();
  
private:
  vtkVolumeTextureMapper2D(const vtkVolumeTextureMapper2D&);  // Not implemented.
  void operator=(const vtkVolumeTextureMapper2D&);  // Not implemented.
};


#endif

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