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vtkResliceCursorThickLineRepresentation.cxx
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vtkResliceCursorThickLineRepresentation.cxx
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkResliceCursorThickLineRepresentation.cxx
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.
=========================================================================*/
#include "vtkResliceCursorThickLineRepresentation.h"
#include "vtkImageData.h"
#include "vtkImageMapToColors.h"
#include "vtkImageReslice.h"
#include "vtkImageSlabReslice.h"
#include "vtkObjectFactory.h"
#include "vtkResliceCursor.h"
#include <algorithm>
#include <cmath>
#include <sstream>
vtkStandardNewMacro(vtkResliceCursorThickLineRepresentation);
//------------------------------------------------------------------------------
vtkResliceCursorThickLineRepresentation::vtkResliceCursorThickLineRepresentation()
{
this->CreateDefaultResliceAlgorithm();
}
//------------------------------------------------------------------------------
vtkResliceCursorThickLineRepresentation::~vtkResliceCursorThickLineRepresentation() = default;
//------------------------------------------------------------------------------
void vtkResliceCursorThickLineRepresentation::CreateDefaultResliceAlgorithm()
{
if (this->Reslice)
{
this->Reslice->Delete();
}
// Override superclass implementation to create a vtkImageSlabReslice here.
this->Reslice = vtkImageSlabReslice::New();
}
//------------------------------------------------------------------------------
void vtkResliceCursorThickLineRepresentation ::SetResliceParameters(
double outputSpacingX, double outputSpacingY, int extentX, int extentY)
{
vtkImageSlabReslice* thickReslice = vtkImageSlabReslice::SafeDownCast(this->Reslice);
if (thickReslice)
{
// Set the default color the minimum scalar value
double range[2];
vtkImageData::SafeDownCast(thickReslice->GetInput())->GetScalarRange(range);
thickReslice->SetBackgroundLevel(range[0]);
// Set the usual parameters.
this->ColorMap->SetInputConnection(thickReslice->GetOutputPort());
thickReslice->TransformInputSamplingOff();
thickReslice->SetResliceAxes(this->ResliceAxes);
thickReslice->SetOutputSpacing(outputSpacingX, outputSpacingY, 1);
thickReslice->SetOutputOrigin(0.5 * outputSpacingX, 0.5 * outputSpacingY, 0);
thickReslice->SetOutputExtent(0, extentX - 1, 0, extentY - 1, 0, 0);
vtkResliceCursor* rc = this->GetResliceCursor();
thickReslice->SetSlabThickness(rc->GetThickness()[0]);
double spacing[3];
rc->GetImage()->GetSpacing(spacing);
// Perhaps we should multiply this by 0.5 for nyquist
const double minSpacing = std::min(std::min(spacing[0], spacing[1]), spacing[2]);
// Set the slab resolution the minimum spacing. Reasonable default
thickReslice->SetSlabResolution(minSpacing);
}
}
//------------------------------------------------------------------------------
void vtkResliceCursorThickLineRepresentation::PrintSelf(ostream& os, vtkIndent indent)
{
// Superclass typedef defined in vtkTypeMacro() found in vtkSetGet.h
this->Superclass::PrintSelf(os, indent);
}