QmitkRigid2DTransformView.cpp

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/*===================================================================

The Medical Imaging Interaction Toolkit (MITK)

Copyright (c) German Cancer Research Center,
Division of Medical and Biological Informatics.
All rights reserved.

This software is distributed WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE.

See LICENSE.txt or http://www.mitk.org for details.

===================================================================*/

#include "QmitkRigid2DTransformView.h"
#include "mitkImageAccessByItk.h"
#include <QValidator>
#include <itkCenteredTransformInitializer.h>
#include <itkRigid2DTransform.h>
#include <mitkImageCast.h>

QmitkRigid2DTransformView::QmitkRigid2DTransformView(QWidget *parent, Qt::WindowFlags f)
  : QmitkRigidRegistrationTransformsGUIBase(parent, f), m_CenterX(0), m_CenterY(0), m_CenterZ(0)
{
}

QmitkRigid2DTransformView::~QmitkRigid2DTransformView()
{
}

mitk::TransformParameters::TransformType QmitkRigid2DTransformView::GetTransformType()
{
  return mitk::TransformParameters::RIGID2DTRANSFORM;
}

itk::Object::Pointer QmitkRigid2DTransformView::GetTransform()
{
  if (m_FixedImage.IsNotNull())
  {
    AccessFixedDimensionByItk(m_FixedImage, GetTransform2, 2);
    return m_TransformObject;
  }
  return nullptr;
}

template <class TPixelType, unsigned int VImageDimension>
itk::Object::Pointer QmitkRigid2DTransformView::GetTransform2(itk::Image<TPixelType, VImageDimension> *itkImage1)
{
  if (VImageDimension == 2)
  {
    typedef typename itk::Image<TPixelType, 2> FixedImage2DType;
    typedef typename itk::Image<TPixelType, 2> MovingImage2DType;

    // the fixedImage is the input parameter (fix for Bug #14626)
    typename FixedImage2DType::Pointer fixedImage2D = itkImage1;

    // the movingImage type is known, use the ImageToItk filter (fix for Bug #14626)
    typename mitk::ImageToItk<MovingImage2DType>::Pointer movingImageToItk = mitk::ImageToItk<MovingImage2DType>::New();
    movingImageToItk->SetInput(m_MovingImage);
    movingImageToItk->Update();
    typename MovingImage2DType::Pointer movingImage2D = movingImageToItk->GetOutput();

    typename itk::Rigid2DTransform<double>::Pointer transformPointer = itk::Rigid2DTransform<double>::New();
    transformPointer->SetIdentity();
    if (m_Controls.m_CenterForInitializerRigid2D->isChecked())
    {
      typedef typename itk::Rigid2DTransform<double> Rigid2DTransformType;
      typedef typename itk::CenteredTransformInitializer<Rigid2DTransformType, FixedImage2DType, MovingImage2DType>
        TransformInitializerType;
      typename TransformInitializerType::Pointer transformInitializer = TransformInitializerType::New();
      transformInitializer->SetFixedImage(fixedImage2D);
      transformInitializer->SetMovingImage(movingImage2D);
      transformInitializer->SetTransform(transformPointer);
      if (m_Controls.m_MomentsRigid2D->isChecked())
      {
        transformInitializer->MomentsOn();
      }
      else
      {
        transformInitializer->GeometryOn();
      }
      transformInitializer->InitializeTransform();
    }
    m_TransformObject = transformPointer.GetPointer();
    return transformPointer.GetPointer();
  }
  return nullptr;
}

itk::Array<double> QmitkRigid2DTransformView::GetTransformParameters()
{
  itk::Array<double> transformValues;
  transformValues.SetSize(6);
  transformValues.fill(0);
  transformValues[0] = m_Controls.m_UseOptimizerScalesRigid2D->isChecked();
  transformValues[1] = m_Controls.m_ScalesRigid2DTransformScale1->text().toDouble();
  transformValues[2] = m_Controls.m_ScalesRigid2DTransformScaleTranslationX->text().toDouble();
  transformValues[3] = m_Controls.m_ScalesRigid2DTransformScaleTranslationY->text().toDouble();
  transformValues[4] = m_Controls.m_CenterForInitializerRigid2D->isChecked();
  transformValues[5] = m_Controls.m_MomentsRigid2D->isChecked();
  return transformValues;
}

void QmitkRigid2DTransformView::SetTransformParameters(itk::Array<double> transformValues)
{
  m_Controls.m_UseOptimizerScalesRigid2D->setChecked(transformValues[0]);
  m_Controls.m_ScalesRigid2DTransformScale1->setText(QString::number(transformValues[1]));
  m_Controls.m_ScalesRigid2DTransformScaleTranslationX->setText(QString::number(transformValues[2]));
  m_Controls.m_ScalesRigid2DTransformScaleTranslationY->setText(QString::number(transformValues[3]));
  m_Controls.m_CenterForInitializerRigid2D->setChecked(transformValues[4]);
  m_Controls.m_MomentsRigid2D->setChecked(transformValues[5]);
  m_Controls.m_GeometryRigid2D->setChecked(!transformValues[5]);
}

QString QmitkRigid2DTransformView::GetName()
{
  return "Rigid2D";
}

void QmitkRigid2DTransformView::SetupUI(QWidget *parent)
{
  m_Controls.setupUi(parent);
  QValidator *validatorLineEditInputFloat = new QDoubleValidator(0, 20000000, 8, this);
  m_Controls.m_ScalesRigid2DTransformScale1->setValidator(validatorLineEditInputFloat);
  m_Controls.m_ScalesRigid2DTransformScaleTranslationX->setValidator(validatorLineEditInputFloat);
  m_Controls.m_ScalesRigid2DTransformScaleTranslationY->setValidator(validatorLineEditInputFloat);
}

itk::Array<double> QmitkRigid2DTransformView::GetScales()
{
  itk::Array<double> scales;
  scales.SetSize(3);
  scales.Fill(1.0);
  if (m_Controls.m_UseOptimizerScalesRigid2D->isChecked())
  {
    scales[0] = m_Controls.m_ScalesRigid2DTransformScale1->text().toDouble();
    scales[1] = m_Controls.m_ScalesRigid2DTransformScaleTranslationX->text().toDouble();
    scales[2] = m_Controls.m_ScalesRigid2DTransformScaleTranslationY->text().toDouble();
  }
  return scales;
}

vtkTransform *QmitkRigid2DTransformView::Transform(vtkMatrix4x4 * /*vtkmatrix*/,
                                                   vtkTransform *vtktransform,
                                                   itk::Array<double> transformParams)
{
  if (m_MovingImage.IsNotNull())
  {
    mitk::ScalarType angle = transformParams[0] * 45.0 / atan(1.0);
    vtktransform->PostMultiply();
    vtktransform->RotateZ(angle);
    vtktransform->Translate(transformParams[1], transformParams[2], 0);
    vtktransform->PreMultiply();
  }
  return vtktransform;
}

int QmitkRigid2DTransformView::GetNumberOfTransformParameters()
{
  if (m_FixedImage.IsNotNull())
  {
    if (m_FixedImage->GetDimension() == 2)
      return 3;
    else
      return 0;
  }
  else
    return 0;
}