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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkImageSpatialObject_hxx
#define itkImageSpatialObject_hxx
#include "itkSize.h"
#include "itkDefaultConvertPixelTraits.h"
namespace itk
{
template <unsigned int TDimension, typename PixelType>
ImageSpatialObject<TDimension, PixelType>::ImageSpatialObject()
{
this->SetTypeName("ImageSpatialObject");
this->Clear();
this->Update();
}
template <unsigned int TDimension, typename PixelType>
ImageSpatialObject<TDimension, PixelType>::~ImageSpatialObject() = default;
template <unsigned int TDimension, typename PixelType>
void
ImageSpatialObject<TDimension, PixelType>::Clear()
{
Superclass::Clear();
m_Image = ImageType::New();
m_SliceNumber.Fill(0);
#if !defined(ITK_LEGACY_REMOVE)
this->SetPixelTypeName(static_cast<const PixelType *>(nullptr));
#endif
m_Interpolator = NNInterpolatorType::New();
this->Modified();
}
template <unsigned int TDimension, typename PixelType>
void
ImageSpatialObject<TDimension, PixelType>::SetInterpolator(InterpolatorType * interpolator)
{
if (m_Interpolator != interpolator)
{
m_Interpolator = interpolator;
if (m_Image && m_Interpolator)
{
m_Interpolator->SetInputImage(m_Image);
}
this->Modified();
}
}
template <unsigned int TDimension, typename PixelType>
bool
ImageSpatialObject<TDimension, PixelType>::IsInsideInObjectSpace(const PointType & point) const
{
IndexType index;
return m_Image->TransformPhysicalPointToIndex(point, index);
}
template <unsigned int TDimension, typename PixelType>
bool
ImageSpatialObject<TDimension, PixelType>::ValueAtInObjectSpace(const PointType & point,
double & value,
unsigned int depth,
const std::string & name) const
{
if (this->GetTypeName().find(name) != std::string::npos)
{
if (this->IsEvaluableAtInObjectSpace(point, 0, name))
{
ContinuousIndexType cIndex;
bool isInside = m_Image->TransformPhysicalPointToContinuousIndex(point, cIndex);
if (isInside)
{
using InterpolatorOutputType = typename InterpolatorType::OutputType;
value = static_cast<double>(DefaultConvertPixelTraits<InterpolatorOutputType>::GetScalarValue(
m_Interpolator->EvaluateAtContinuousIndex(cIndex)));
return true;
}
}
}
if (depth > 0)
{
return Superclass::ValueAtChildrenInObjectSpace(point, value, depth - 1, name);
}
return false;
}
template <unsigned int TDimension, typename PixelType>
void
ImageSpatialObject<TDimension, PixelType>::ComputeMyBoundingBox()
{
itkDebugMacro("Computing ImageSpatialObject bounding box");
IndexType index = m_Image->GetLargestPossibleRegion().GetIndex();
typename ImageType::SizeType size = m_Image->GetLargestPossibleRegion().GetSize();
IndexType index2;
for (unsigned int i = 0; i < TDimension; ++i)
{
index2[i] = index[i] + size[i];
}
PointType pnt1;
PointType pnt2;
m_Image->TransformIndexToPhysicalPoint(index, pnt1);
m_Image->TransformIndexToPhysicalPoint(index2, pnt2);
this->GetModifiableMyBoundingBoxInObjectSpace()->SetMinimum(pnt1);
this->GetModifiableMyBoundingBoxInObjectSpace()->SetMaximum(pnt1);
this->GetModifiableMyBoundingBoxInObjectSpace()->ConsiderPoint(pnt2);
this->GetModifiableMyBoundingBoxInObjectSpace()->ComputeBoundingBox();
}
template <unsigned int TDimension, typename PixelType>
void
ImageSpatialObject<TDimension, PixelType>::SetImage(const ImageType * image)
{
if (m_Image != image)
{
if (!image)
{
itkDebugMacro("Image passed to ImageSpatialObject was null");
return;
}
m_Image = image;
UpdateImageRegions();
if (m_Interpolator)
{
m_Interpolator->SetInputImage(m_Image);
}
this->Modified();
}
}
template <unsigned int TDimension, typename PixelType>
auto
ImageSpatialObject<TDimension, PixelType>::GetImage() const -> const ImageType *
{
return m_Image.GetPointer();
}
template <unsigned int TDimension, typename PixelType>
typename LightObject::Pointer
ImageSpatialObject<TDimension, PixelType>::InternalClone() const
{
// Default implementation just copies the parameters from
// this to new transform.
typename LightObject::Pointer loPtr = Superclass::InternalClone();
typename Self::Pointer rval = dynamic_cast<Self *>(loPtr.GetPointer());
if (rval.IsNull())
{
itkExceptionMacro("downcast to type " << this->GetNameOfClass() << " failed.");
}
rval->SetImage(this->GetImage()->Clone());
rval->SetSliceNumber(this->GetSliceNumber());
rval->SetInterpolator(this->GetInterpolator());
return loPtr;
}
template <unsigned int TDimension, typename PixelType>
void
ImageSpatialObject<TDimension, PixelType>::Update()
{
UpdateImageRegions();
// Call the Superclass Update() after (not before) updating the image regions! The effect of Superclass::Update()
// may depend partially on the image regions.
Superclass::Update();
}
template <unsigned int TDimension, typename PixelType>
void
ImageSpatialObject<TDimension, PixelType>::UpdateImageRegions()
{
if (m_Image)
{
Superclass::SetLargestPossibleRegion(m_Image->GetLargestPossibleRegion());
Superclass::SetBufferedRegion(m_Image->GetBufferedRegion());
Superclass::SetRequestedRegion(m_Image->GetRequestedRegion());
}
}
template <unsigned int TDimension, typename PixelType>
void
ImageSpatialObject<TDimension, PixelType>::PrintSelf(std::ostream & os, Indent indent) const
{
Superclass::PrintSelf(os, indent);
itkPrintSelfObjectMacro(Image);
os << indent << "SliceNumber: " << static_cast<typename NumericTraits<IndexType>::PrintType>(m_SliceNumber)
<< std::endl;
#if !defined(ITK_LEGACY_REMOVE)
os << indent << "PixelType: " << m_PixelType << std::endl;
#endif
itkPrintSelfObjectMacro(Interpolator);
}
template <unsigned int TDimension, typename PixelType>
ModifiedTimeType
ImageSpatialObject<TDimension, PixelType>::GetMTime() const
{
ModifiedTimeType latestMTime = Superclass::GetMTime();
const ModifiedTimeType imageMTime = m_Image->GetMTime();
if (imageMTime > latestMTime)
{
latestMTime = imageMTime;
}
return latestMTime;
}
template <unsigned int TDimension, typename PixelType>
void
ImageSpatialObject<TDimension, PixelType>::SetSliceNumber(unsigned int dimension, int position)
{
if (dimension < ObjectDimension && m_SliceNumber[dimension] != position)
{
m_SliceNumber[dimension] = position;
this->Modified();
}
}
} // end namespace itk
#endif //__ImageSpatialObject_hxx
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