You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

121 lines
4.1 KiB
C++

/*=========================================================================
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.
=========================================================================*/
/**
* @class vtkImageSlabReslice
* @brief Thick slab reformat through data.
*
* 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.
* @sa
* vtkImageReslice
*/
#ifndef vtkImageSlabReslice_h
#define vtkImageSlabReslice_h
#include "vtkImageReslice.h"
#include "vtkImagingGeneralModule.h" // For export macro
class VTKIMAGINGGENERAL_EXPORT vtkImageSlabReslice : public vtkImageReslice
{
public:
static vtkImageSlabReslice* New();
vtkTypeMacro(vtkImageSlabReslice, vtkImageReslice);
/**
* Printself method.
*/
void PrintSelf(ostream& os, vtkIndent indent) override;
//@{
/**
* 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); }
//@}
//@{
/**
* 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);
//@}
//@{
/**
* SlabThickness of slab in world coords. SlabThickness must be non-zero and
* positive.
*/
vtkSetMacro(SlabThickness, double);
vtkGetMacro(SlabThickness, double);
//@}
//@{
/**
* 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() override;
/**
* This method simply calls the superclass method. In addition, it also
* precomputes the NumBlendSamplePoints based on the SlabThickness and
* SlabResolution.
*/
int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
int BlendMode; // can be MIN, MIP, MAX
double SlabThickness;
double SlabResolution;
int NumBlendSamplePoints;
private:
vtkImageSlabReslice(const vtkImageSlabReslice&) = delete;
void operator=(const vtkImageSlabReslice&) = delete;
};
#endif