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dox/Rendering/vtkVolumeTextureMapper.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkVolumeTextureMapper.h,v $
00005   Language:  C++
00006 
00007   Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen 
00008   All rights reserved.
00009   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00010 
00011      This software is distributed WITHOUT ANY WARRANTY; without even 
00012      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00013      PURPOSE.  See the above copyright notice for more information.
00014 
00015 =========================================================================*/
00030 #ifndef __vtkVolumeTextureMapper_h
00031 #define __vtkVolumeTextureMapper_h
00032 
00033 #include "vtkVolumeMapper.h"
00034 
00035 class vtkEncodedGradientEstimator;
00036 class vtkEncodedGradientShader;
00037 class vtkRenderWindow;
00038 class vtkRenderer;
00039 class vtkVolume;
00040 
00041 class VTK_RENDERING_EXPORT vtkVolumeTextureMapper : public vtkVolumeMapper
00042 {
00043 public:
00044   vtkTypeRevisionMacro(vtkVolumeTextureMapper,vtkVolumeMapper);
00045   void PrintSelf( ostream& os, vtkIndent indent );
00046 
00048   virtual void Update();
00049 
00051 
00052   virtual void SetGradientEstimator( vtkEncodedGradientEstimator *gradest );
00053   vtkGetObjectMacro( GradientEstimator, vtkEncodedGradientEstimator );
00055 
00057 
00058   vtkGetObjectMacro( GradientShader, vtkEncodedGradientShader );
00060 
00061 //BTX
00063 
00065   float *GetGradientOpacityArray(){return this->GradientOpacityArray;};
00066   unsigned char *GetRGBAArray(){return this->RGBAArray;};
00067   float *GetRedDiffuseShadingTable(){return this->RedDiffuseShadingTable;};
00068   float *GetGreenDiffuseShadingTable(){return this->GreenDiffuseShadingTable;};
00069   float *GetBlueDiffuseShadingTable(){return this->BlueDiffuseShadingTable;};
00070   float *GetRedSpecularShadingTable(){return this->RedSpecularShadingTable;};
00071   float *GetGreenSpecularShadingTable(){return this->GreenSpecularShadingTable;};
00072   float *GetBlueSpecularShadingTable(){return this->BlueSpecularShadingTable;};
00073   unsigned short *GetEncodedNormals(){return this->EncodedNormals;};
00074   unsigned char *GetGradientMagnitudes(){return this->GradientMagnitudes;};
00075   vtkGetMacro( Shade, int );
00076   vtkGetObjectMacro( RenderWindow, vtkRenderWindow );
00077   vtkGetVectorMacro( DataOrigin, float, 3 );
00078   vtkGetVectorMacro( DataSpacing, float, 3 );
00080 
00083   virtual void Render(vtkRenderer *ren, vtkVolume *vol)=0;
00084 
00086 
00088   virtual float GetGradientMagnitudeScale();
00089   virtual float GetGradientMagnitudeBias();
00090   virtual float GetGradientMagnitudeScale(int)
00091     { return this->GetGradientMagnitudeScale(); };
00092   virtual float GetGradientMagnitudeBias(int)
00093     { return this->GetGradientMagnitudeBias(); };
00095   
00096 //ETX
00097 
00098 
00099 
00100 protected:
00101   vtkVolumeTextureMapper();
00102   ~vtkVolumeTextureMapper();
00103 
00104   void InitializeRender( vtkRenderer *ren, vtkVolume *vol );
00105 
00106   // Objects / variables  needed for shading / gradient magnitude opacity
00107   vtkEncodedGradientEstimator  *GradientEstimator;
00108   vtkEncodedGradientShader     *GradientShader;
00109   int                          Shade;
00110 
00111   float          *GradientOpacityArray;
00112   unsigned char  *RGBAArray;
00113   int            ArraySize;
00114 
00115   float          *RedDiffuseShadingTable;
00116   float          *GreenDiffuseShadingTable;
00117   float          *BlueDiffuseShadingTable;
00118   float          *RedSpecularShadingTable;
00119   float          *GreenSpecularShadingTable;
00120   float          *BlueSpecularShadingTable;
00121 
00122   float          DataOrigin[3];
00123   float          DataSpacing[3];
00124 
00125   unsigned short *EncodedNormals;
00126   unsigned char  *GradientMagnitudes;
00127 
00128   float          SampleDistance;
00129   
00130   vtkRenderWindow *RenderWindow;
00131 private:
00132   vtkVolumeTextureMapper(const vtkVolumeTextureMapper&);  // Not implemented.
00133   void operator=(const vtkVolumeTextureMapper&);  // Not implemented.
00134 };
00135 
00136 
00137 #endif
00138 
00139