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# Imaging/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 =========================================================================*/
    00091 #ifndef __vtkImageBlend_h
    00092 #define __vtkImageBlend_h
    00093
    00094
    00095 #include "vtkImageMultipleInputFilter.h"
    00096
    00097 class vtkImageStencilData;
    00098
    00099 #define VTK_IMAGE_BLEND_MODE_NORMAL    0
    00100 #define VTK_IMAGE_BLEND_MODE_COMPOUND 1
    00101
    00102 class VTK_IMAGING_EXPORT vtkImageBlend : public vtkImageMultipleInputFilter
    00103 {
    00104 public:
    00105   static vtkImageBlend *New();
    00106   vtkTypeRevisionMacro(vtkImageBlend,vtkImageMultipleInputFilter);
    00107   void PrintSelf(ostream& os, vtkIndent indent);
    00108
    00110
    00112   void SetOpacity(int idx, double opacity);
    00113   double GetOpacity(int idx);
    00115
    00117
    00118   virtual void SetStencil(vtkImageStencilData*);
    00119   vtkGetObjectMacro(Stencil, vtkImageStencilData);
    00121
    00123
    00124   vtkSetClampMacro(BlendMode,int,
    00125                    VTK_IMAGE_BLEND_MODE_NORMAL,
    00126                    VTK_IMAGE_BLEND_MODE_COMPOUND );
    00127   vtkGetMacro(BlendMode,int);
    00128   void SetBlendModeToNormal()
    00129         {this->SetBlendMode(VTK_IMAGE_BLEND_MODE_NORMAL);};
    00130   void SetBlendModeToCompound()
    00131         {this->SetBlendMode(VTK_IMAGE_BLEND_MODE_COMPOUND);};
    00132   const char *GetBlendModeAsString(void);
    00134
    00136
    00138   vtkSetMacro(CompoundThreshold,float);
    00139   vtkGetMacro(CompoundThreshold,float);
    00141
    00142 protected:
    00143   vtkImageBlend();
    00144   ~vtkImageBlend();
    00145
    00146   void ComputeInputUpdateExtent(int inExt[6], int outExt[6],
    00147                                 int whichInput);
    00148
    00149   void ExecuteInformation() {
    00150     this->vtkImageMultipleInputFilter::ExecuteInformation(); };
    00151
    00152   void ExecuteInformation(vtkImageData **, vtkImageData *);
    00153
    00154   void ThreadedExecute(vtkImageData **inDatas,
    00155                        vtkImageData *outData,
    00156                        int extent[6],
    00157                        int id);
    00158
    00159   void ExecuteData(vtkDataObject *output);
    00160
    00161   vtkImageStencilData *Stencil;
    00162   double *Opacity;
    00163   int OpacityArrayLength;
    00164   int BlendMode;
    00165   float CompoundThreshold;
    00166   int DataWasPassed;
    00167 private:
    00168   vtkImageBlend(const vtkImageBlend&);  // Not implemented.
    00169   void operator=(const vtkImageBlend&);  // Not implemented.
    00170 };
    00171
    00173 inline const char *vtkImageBlend::GetBlendModeAsString()
    00174 {
    00175   switch (this->BlendMode)
    00176     {
    00177     case VTK_IMAGE_BLEND_MODE_NORMAL:
    00178       return "Normal";
    00179     case VTK_IMAGE_BLEND_MODE_COMPOUND:
    00180       return "Compound";
    00181     default:
    00182       return "Unknown Blend Mode";
    00183     }
    00184 }
    00185
    00186
    00187 #endif
    00188
    00189
    00190
    00191