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vtkImageBlend.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkImageBlend.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 =========================================================================*/
00080 #ifndef __vtkImageBlend_h
00081 #define __vtkImageBlend_h
00082 
00083 
00084 #include "vtkImageMultipleInputFilter.h"
00085 
00086 class vtkImageStencilData;
00087 
00088 #define VTK_IMAGE_BLEND_MODE_NORMAL    0
00089 #define VTK_IMAGE_BLEND_MODE_COMPOUND 1
00090 
00091 class VTK_IMAGING_EXPORT vtkImageBlend : public vtkImageMultipleInputFilter
00092 {
00093 public:
00094   static vtkImageBlend *New();
00095   vtkTypeRevisionMacro(vtkImageBlend,vtkImageMultipleInputFilter);
00096   void PrintSelf(ostream& os, vtkIndent indent);
00097 
00099 
00101   void SetOpacity(int idx, double opacity);
00102   double GetOpacity(int idx);
00104 
00106 
00107   virtual void SetStencil(vtkImageStencilData*);
00108   vtkGetObjectMacro(Stencil, vtkImageStencilData);
00110 
00112 
00113   vtkSetClampMacro(BlendMode,int,
00114                    VTK_IMAGE_BLEND_MODE_NORMAL, 
00115                    VTK_IMAGE_BLEND_MODE_COMPOUND );
00116   vtkGetMacro(BlendMode,int);
00117   void SetBlendModeToNormal() 
00118         {this->SetBlendMode(VTK_IMAGE_BLEND_MODE_NORMAL);};
00119   void SetBlendModeToCompound() 
00120         {this->SetBlendMode(VTK_IMAGE_BLEND_MODE_COMPOUND);};
00121   const char *GetBlendModeAsString(void);
00123 
00125 
00127   vtkSetMacro(CompoundThreshold,float);
00128   vtkGetMacro(CompoundThreshold,float);
00130 
00131 protected:
00132   vtkImageBlend();
00133   ~vtkImageBlend();
00134 
00135   void ComputeInputUpdateExtent(int inExt[6], int outExt[6],
00136                                 int whichInput);
00137 
00138   void ExecuteInformation() {
00139     this->vtkImageMultipleInputFilter::ExecuteInformation(); };
00140 
00141   void ExecuteInformation(vtkImageData **, vtkImageData *);
00142 
00143   void ThreadedExecute(vtkImageData **inDatas, 
00144                        vtkImageData *outData,
00145                        int extent[6], 
00146                        int id);
00147 
00148   void ExecuteData(vtkDataObject *output);
00149   
00150   vtkImageStencilData *Stencil;
00151   double *Opacity;
00152   int OpacityArrayLength;
00153   int BlendMode;
00154   float CompoundThreshold;
00155   int DataWasPassed;  
00156 private:
00157   vtkImageBlend(const vtkImageBlend&);  // Not implemented.
00158   void operator=(const vtkImageBlend&);  // Not implemented.
00159 };
00160 
00162 inline const char *vtkImageBlend::GetBlendModeAsString()
00163 {
00164   switch (this->BlendMode)
00165     {
00166     case VTK_IMAGE_BLEND_MODE_NORMAL:
00167       return "Normal";
00168     case VTK_IMAGE_BLEND_MODE_COMPOUND:
00169       return "Compound";
00170     default:
00171       return "Unknown Blend Mode";
00172     }
00173 }
00174 
00175 
00176 #endif
00177 
00178 
00179 
00180