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121 lines
4.1 KiB
C
121 lines
4.1 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkImageSlabReslice.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkImageSlabReslice
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* @brief Thick slab reformat through data.
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*
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* This class derives from vtkImageResliceBase. Much like vtkImageReslice, it
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* reslices the data. It is multi-threaded. It takes a three dimensional image
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* as input and produces a two dimensional thick MPR along some direction.
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* <p> The class reslices the thick slab using a blending function. Supported
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* blending functions are Minimum Intensity blend through the slab, maximum
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* intensity blend and a Mean (average) intensity of values across the slab.
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* <p> The user can adjust the thickness of the slab by using the method
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* SetSlabThickness. The distance between sample points used for blending
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* across the thickness of the slab is controlled by the method
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* SetSlabResolution. These two methods determine the number of slices used
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* across the slab for blending, which is computed as
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* {(2 x (int)(0.5 x SlabThickness/SlabResolution)) + 1}. This value may
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* be queried via GetNumBlendSamplePoints() and is always >= 1.
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* <p> Much like vtkImageReslice, the reslice axes direction cosines may be
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* set via the methods SetResliceAxes or SetResliceAxesDirectionCosines. The
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* output spacing is controlled by SetOutputSpacing and the output origin is
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* controlled by SetOutputOrigin. The default value to be set on pixels that
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* lie outside the volume when reformatting is controlled by
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* SetBackgroundColor or SetBackgroundLevel. The SetResliceAxesOrigin()
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* method can also be used to provide an (x,y,z) point that the slice will
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* pass through.
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* @sa
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* vtkImageReslice
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*/
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#ifndef vtkImageSlabReslice_h
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#define vtkImageSlabReslice_h
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#include "vtkImageReslice.h"
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#include "vtkImagingGeneralModule.h" // For export macro
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class VTKIMAGINGGENERAL_EXPORT vtkImageSlabReslice : public vtkImageReslice
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{
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public:
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static vtkImageSlabReslice* New();
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vtkTypeMacro(vtkImageSlabReslice, vtkImageReslice);
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/**
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* Printself method.
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*/
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void PrintSelf(ostream& os, vtkIndent indent) override;
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//@{
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/**
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* Set/Get the blend mode. Default is MIP (ie Max)
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*/
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vtkSetMacro(BlendMode, int);
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vtkGetMacro(BlendMode, int);
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void SetBlendModeToMin() { this->SetBlendMode(VTK_IMAGE_SLAB_MIN); }
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void SetBlendModeToMax() { this->SetBlendMode(VTK_IMAGE_SLAB_MAX); }
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void SetBlendModeToMean() { this->SetBlendMode(VTK_IMAGE_SLAB_MEAN); }
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//@}
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//@{
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/**
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* Number of sample points used across the slab cross-section. If equal to
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* 1, this ends up being a thin reslice through the data a.k.a.
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* vtkImageReslice
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*/
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vtkGetMacro(NumBlendSamplePoints, int);
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//@}
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//@{
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/**
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* SlabThickness of slab in world coords. SlabThickness must be non-zero and
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* positive.
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*/
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vtkSetMacro(SlabThickness, double);
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vtkGetMacro(SlabThickness, double);
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//@}
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//@{
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/**
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* Spacing between slabs in world units. (Number of Slices, ie samples to
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* blend is computed from SlabThickness and SlabResolution).
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*/
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vtkSetMacro(SlabResolution, double);
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vtkGetMacro(SlabResolution, double);
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//@}
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protected:
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vtkImageSlabReslice();
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~vtkImageSlabReslice() override;
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/**
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* This method simply calls the superclass method. In addition, it also
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* precomputes the NumBlendSamplePoints based on the SlabThickness and
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* SlabResolution.
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*/
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int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
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int BlendMode; // can be MIN, MIP, MAX
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double SlabThickness;
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double SlabResolution;
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int NumBlendSamplePoints;
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private:
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vtkImageSlabReslice(const vtkImageSlabReslice&) = delete;
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void operator=(const vtkImageSlabReslice&) = delete;
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};
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#endif
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