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Rendering/vtkVolumeMapper.h

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

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


Copyright (c) 1993-2001 Ken Martin, Will Schroeder, Bill Lorensen 
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

 * Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.

 * Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

 * Neither name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names
   of any contributors may be used to endorse or promote products derived
   from this software without specific prior written permission.

 * Modified source versions must be plainly marked as such, and must not be
   misrepresented as being the original software.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

=========================================================================*/
#ifndef __vtkVolumeMapper_h
#define __vtkVolumeMapper_h

#include "vtkAbstractMapper3D.h"
#include "vtkImageData.h"

class vtkRenderer;
class vtkVolume;

#define VTK_CROP_SUBVOLUME              0x0002000
#define VTK_CROP_FENCE                  0x2ebfeba
#define VTK_CROP_INVERTED_FENCE         0x5140145
#define VTK_CROP_CROSS                  0x0417410
#define VTK_CROP_INVERTED_CROSS         0x7be8bef

class vtkWindow;

class VTK_RENDERING_EXPORT vtkVolumeMapper : public vtkAbstractMapper3D
{
public:
  vtkTypeMacro(vtkVolumeMapper,vtkAbstractMapper3D);
  void PrintSelf( ostream& os, vtkIndent index );

  virtual void Update();


  void SetInput( vtkImageData * );
  vtkImageData *GetInput();


  vtkSetMacro(Cropping,int);
  vtkGetMacro(Cropping,int);
  vtkBooleanMacro(Cropping,int);


  vtkSetVector6Macro( CroppingRegionPlanes, float );
  vtkGetVectorMacro(  CroppingRegionPlanes, float, 6 );


  vtkGetVectorMacro( VoxelCroppingRegionPlanes, float, 6 );
  

  vtkSetClampMacro( CroppingRegionFlags, int, 0x0, 0x7ffffff );
  vtkGetMacro( CroppingRegionFlags, int );
  void SetCroppingRegionFlagsToSubVolume() 
    {this->SetCroppingRegionFlags( VTK_CROP_SUBVOLUME );};
  void SetCroppingRegionFlagsToFence() 
    {this->SetCroppingRegionFlags( VTK_CROP_FENCE );};
  void SetCroppingRegionFlagsToInvertedFence() 
    {this->SetCroppingRegionFlags( VTK_CROP_INVERTED_FENCE );};
  void SetCroppingRegionFlagsToCross() 
    {this->SetCroppingRegionFlags( VTK_CROP_CROSS );};
  void SetCroppingRegionFlagsToInvertedCross() 
    {this->SetCroppingRegionFlags( VTK_CROP_INVERTED_CROSS );};


  void SetRGBTextureInput( vtkImageData *rgbTexture );
  virtual vtkImageData *GetRGBTextureInput();


  virtual float *GetBounds();
  virtual void GetBounds(float bounds[6])
    { this->vtkAbstractMapper3D::GetBounds(bounds); };


//BTX
  /*! WARNING: INTERNAL METHOD - NOT INTENDED FOR GENERAL USE */
  virtual float GetGradientMagnitudeScale() {return 1.0;};
  virtual float GetGradientMagnitudeBias()  {return 0.0;};
  

  virtual void Render(vtkRenderer *ren, vtkVolume *vol)=0;

  virtual void ReleaseGraphicsResources(vtkWindow *) {};
//ETX


protected:
  vtkVolumeMapper();
  ~vtkVolumeMapper();

  int                  Cropping;
  float                CroppingRegionPlanes[6];
  float                VoxelCroppingRegionPlanes[6];
  int                  CroppingRegionFlags;
  vtkTimeStamp         BuildTime;
  
  void ConvertCroppingRegionPlanesToVoxels();
  
private:
  vtkVolumeMapper(const vtkVolumeMapper&);  // Not implemented.
  void operator=(const vtkVolumeMapper&);  // Not implemented.
};


#endif

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