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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageSlabReslice.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkImageSlabReslice - Thick slab reformat through data.
// .SECTION Description
// This class derives from vtkImageResliceBase. Much like vtkImageReslice, it
// reslices the data. It is multi-threaded. It takes a three dimensional image
// as input and produces a two dimensional thick MPR along some direction.
// <p> The class reslices the thick slab using a blending function. Supported
// blending functions are Minimum Intensity blend through the slab, maximum
// intensity blend and a Mean (average) intensity of values across the slab.
// <p> The user can adjust the thickness of the slab by using the method
// SetSlabThickness. The distance between sample points used for blending
// across the thickness of the slab is controlled by the method
// SetSlabResolution. These two methods determine the number of slices used
// across the slab for blending, which is computed as
// {(2 x (int)(0.5 x SlabThickness/SlabResolution)) + 1}. This value may
// be queried via GetNumBlendSamplePoints() and is always >= 1.
// <p> Much like vtkImageReslice, the reslice axes direction cosines may be
// set via the methods SetResliceAxes or SetResliceAxesDirectionCosines. The
// output spacing is controlled by SetOutputSpacing and the output origin is
// controlled by SetOutputOrigin. The default value to be set on pixels that
// lie outside the volume when reformatting is controlled by
// SetBackgroundColor or SetBackgroundLevel. The SetResliceAxesOrigin()
// method can also be used to provide an (x,y,z) point that the slice will
// pass through.
// .SECTION see also
// vtkImageReslice
#ifndef vtkImageSlabReslice_h
#define vtkImageSlabReslice_h
#include "vtkImagingGeneralModule.h" // For export macro
#include "vtkImageReslice.h"
class VTKIMAGINGGENERAL_EXPORT vtkImageSlabReslice : public vtkImageReslice
{
public:
static vtkImageSlabReslice *New();
vtkTypeMacro(vtkImageSlabReslice, vtkImageReslice);
// Description:
// Printself method.
virtual void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Set/Get the blend mode. Default is MIP (ie Max)
vtkSetMacro( BlendMode, int );
vtkGetMacro( BlendMode, int );
void SetBlendModeToMin() { this->SetBlendMode(VTK_IMAGE_SLAB_MIN ); }
void SetBlendModeToMax() { this->SetBlendMode(VTK_IMAGE_SLAB_MAX ); }
void SetBlendModeToMean() { this->SetBlendMode(VTK_IMAGE_SLAB_MEAN); }
// Description:
// Number of sample points used across the slab cross-section. If equal to
// 1, this ends up being a thin reslice through the data a.k.a.
// vtkImageReslice
vtkGetMacro( NumBlendSamplePoints, int );
// Description:
// SlabThickness of slab in world coords. SlabThickness must be non-zero and
// positive.
vtkSetMacro( SlabThickness, double );
vtkGetMacro( SlabThickness, double );
// Description:
// Spacing between slabs in world units. (Number of Slices, ie samples to
// blend is computed from SlabThickness and SlabResolution).
vtkSetMacro( SlabResolution, double );
vtkGetMacro( SlabResolution, double );
protected:
vtkImageSlabReslice();
~vtkImageSlabReslice();
// Description:
// This method simply calls the superclass method. In addition, it also
// precomputes the NumBlendSamplePoints based on the SlabThickness and
// SlabResolution.
virtual int RequestInformation(vtkInformation *, vtkInformationVector **,
vtkInformationVector *);
int BlendMode; // can be MIN, MIP, MAX
double SlabThickness;
double SlabResolution;
int NumBlendSamplePoints;
private:
vtkImageSlabReslice(const vtkImageSlabReslice&); // Not implemented.
void operator=(const vtkImageSlabReslice&); // Not implemented.
};
#endif
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