dox / Imaging
vtkImageBlend.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkImageBlend.h,v $
00005 
00006   Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
00007   All rights reserved.
00008   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00009 
00010      This software is distributed WITHOUT ANY WARRANTY; without even
00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00012      PURPOSE.  See the above copyright notice for more information.
00013 
00014 =========================================================================*/
00088 #ifndef __vtkImageBlend_h
00089 #define __vtkImageBlend_h
00090 
00091 
00092 #include "vtkImageMultipleInputFilter.h"
00093 
00094 class vtkImageStencilData;
00095 
00096 #define VTK_IMAGE_BLEND_MODE_NORMAL    0
00097 #define VTK_IMAGE_BLEND_MODE_COMPOUND 1
00098 
00099 class VTK_IMAGING_EXPORT vtkImageBlend : public vtkImageMultipleInputFilter
00100 {
00101 public:
00102   static vtkImageBlend *New();
00103   vtkTypeRevisionMacro(vtkImageBlend,vtkImageMultipleInputFilter);
00104   void PrintSelf(ostream& os, vtkIndent indent);
00105 
00107 
00109   void SetOpacity(int idx, double opacity);
00110   double GetOpacity(int idx);
00112 
00114 
00115   virtual void SetStencil(vtkImageStencilData*);
00116   vtkGetObjectMacro(Stencil, vtkImageStencilData);
00118 
00120 
00121   vtkSetClampMacro(BlendMode,int,
00122                    VTK_IMAGE_BLEND_MODE_NORMAL, 
00123                    VTK_IMAGE_BLEND_MODE_COMPOUND );
00124   vtkGetMacro(BlendMode,int);
00125   void SetBlendModeToNormal() 
00126         {this->SetBlendMode(VTK_IMAGE_BLEND_MODE_NORMAL);};
00127   void SetBlendModeToCompound() 
00128         {this->SetBlendMode(VTK_IMAGE_BLEND_MODE_COMPOUND);};
00129   const char *GetBlendModeAsString(void);
00131 
00133 
00135   vtkSetMacro(CompoundThreshold,double);
00136   vtkGetMacro(CompoundThreshold,double);
00138 
00139 protected:
00140   vtkImageBlend();
00141   ~vtkImageBlend();
00142 
00143   void ComputeInputUpdateExtent(int inExt[6], int outExt[6],
00144                                 int whichInput);
00145 
00146   void ExecuteInformation() {
00147     this->vtkImageMultipleInputFilter::ExecuteInformation(); };
00148 
00149   void ExecuteInformation(vtkImageData **, vtkImageData *);
00150 
00151   void ThreadedExecute(vtkImageData **inDatas, 
00152                        vtkImageData *outData,
00153                        int extent[6], 
00154                        int id);
00155 
00156   void ExecuteData(vtkDataObject *output);
00157   
00158   vtkImageStencilData *Stencil;
00159   double *Opacity;
00160   int OpacityArrayLength;
00161   int BlendMode;
00162   double CompoundThreshold;
00163   int DataWasPassed;  
00164 private:
00165   vtkImageBlend(const vtkImageBlend&);  // Not implemented.
00166   void operator=(const vtkImageBlend&);  // Not implemented.
00167 };
00168 
00170 inline const char *vtkImageBlend::GetBlendModeAsString()
00171 {
00172   switch (this->BlendMode)
00173     {
00174     case VTK_IMAGE_BLEND_MODE_NORMAL:
00175       return "Normal";
00176     case VTK_IMAGE_BLEND_MODE_COMPOUND:
00177       return "Compound";
00178     default:
00179       return "Unknown Blend Mode";
00180     }
00181 }
00182 
00183 
00184 #endif
00185 
00186 
00187 
00188