vtkImageMapToColors16.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkImageMapToColors16.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 =========================================================================*/
00015 // .NAME vtkImageMapToColors16 - map the input image through a lookup table
00016 // .SECTION Description
00017 // The vtkImageMapToColors16 filter will take an input image of any valid
00018 // scalar type, and map the first component of the image through a
00019 // lookup table.  The result is an image of type VTK_UNSIGNED_CHAR.
00020 // If the lookup table is not set, or is set to NULL, then the input
00021 // data will be passed through if it is already of type VTK_UNSIGNED_CHAR.
00022 
00023 // .SECTION See Also
00024 // vtkLookupTable vtkScalarsToColors
00025 
00026 #ifndef VTKIMAGEMAPTOCOLORS16_H
00027 #define VTKIMAGEMAPTOCOLORS16_H
00028 
00029 
00030 #include "vtkThreadedImageAlgorithm.h"
00031 
00032 class vtkScalarsToColors;
00033 
00034 class VTK_EXPORT vtkImageMapToColors16 : public vtkThreadedImageAlgorithm
00035 {
00036 public:
00037   static vtkImageMapToColors16 *New();
00038   vtkTypeRevisionMacro(vtkImageMapToColors16,vtkThreadedImageAlgorithm);
00039   void PrintSelf(ostream& os, vtkIndent indent);
00040 
00041   // Description:
00042   // Set the lookup table.
00043   virtual void SetLookupTable(vtkScalarsToColors*);
00044   vtkGetObjectMacro(LookupTable,vtkScalarsToColors);
00045 
00046   // Description:
00047   // Set the output format, the default is RGBA.  
00048   vtkSetMacro(OutputFormat,int);
00049   vtkGetMacro(OutputFormat,int);
00050   void SetOutputFormatToRGBA() { this->OutputFormat = VTK_RGBA; };
00051   void SetOutputFormatToRGB() { this->OutputFormat = VTK_RGB; };
00052   void SetOutputFormatToLuminanceAlpha() { this->OutputFormat = VTK_LUMINANCE_ALPHA; };
00053   void SetOutputFormatToLuminance() { this->OutputFormat = VTK_LUMINANCE; };
00054 
00055   // Description:
00056   // Set the component to map for multi-component images (default: 0)
00057   vtkSetMacro(ActiveComponent,int);
00058   vtkGetMacro(ActiveComponent,int);
00059 
00060   // Description:
00061   // Use the alpha component of the input when computing the alpha component
00062   // of the output (useful when converting monochrome+alpha data to RGBA)
00063   vtkSetMacro(PassAlphaToOutput,int);
00064   vtkBooleanMacro(PassAlphaToOutput,int);
00065   vtkGetMacro(PassAlphaToOutput,int);
00066 
00067   // Description:
00068   // We need to check the modified time of the lookup table too.
00069   virtual unsigned long GetMTime();
00070 
00071 protected:
00072   vtkImageMapToColors16();
00073   ~vtkImageMapToColors16();
00074 
00075   virtual int RequestInformation (vtkInformation *, vtkInformationVector **, vtkInformationVector *);
00076   
00077   void ThreadedRequestData(vtkInformation *request,
00078                            vtkInformationVector **inputVector,
00079                            vtkInformationVector *outputVector,
00080                            vtkImageData ***inData, vtkImageData **outData,
00081                            int extent[6], int id);
00082 
00083   virtual int RequestData(vtkInformation *request,
00084                           vtkInformationVector **inputVector,
00085                           vtkInformationVector *outputVector);
00086 
00087   vtkScalarsToColors *LookupTable;
00088   int OutputFormat;
00089   
00090   int ActiveComponent;
00091   int PassAlphaToOutput;
00092 
00093   int DataWasPassed;
00094 private:
00095   vtkImageMapToColors16(const vtkImageMapToColors16&);  // Not implemented.
00096   void operator=(const vtkImageMapToColors16&);  // Not implemented.
00097 };
00098 
00099 #endif
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