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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 itkLevelSetSparseImage_hxx
#define itkLevelSetSparseImage_hxx
namespace itk
{
template <typename TOutput, unsigned int VDimension>
auto
LevelSetSparseImage<TOutput, VDimension>::Status(const InputType & inputIndex) const -> LayerIdType
{
InputType mapIndex = inputIndex - this->m_DomainOffset;
return this->m_LabelMap->GetPixel(mapIndex);
}
template <typename TOutput, unsigned int VDimension>
void
LevelSetSparseImage<TOutput, VDimension>::SetLabelMap(LabelMapType * labelMap)
{
this->m_LabelMap = labelMap;
using SpacingType = typename LabelMapType::SpacingType;
const SpacingType spacing = m_LabelMap->GetSpacing();
for (unsigned int dim = 0; dim < Dimension; ++dim)
{
this->m_NeighborhoodScales[dim] =
NumericTraits<OutputRealType>::OneValue() / static_cast<OutputRealType>(spacing[dim]);
}
this->Modified();
}
template <typename TOutput, unsigned int VDimension>
bool
LevelSetSparseImage<TOutput, VDimension>::IsInsideDomain(const InputType & inputIndex) const
{
const RegionType largestRegion = this->m_LabelMap->GetLargestPossibleRegion();
InputType mapIndex = inputIndex - this->m_DomainOffset;
return largestRegion.IsInside(mapIndex);
}
template <typename TOutput, unsigned int VDimension>
void
LevelSetSparseImage<TOutput, VDimension>::Graft(const DataObject * data)
{
Superclass::Graft(data);
const auto * levelSet = dynamic_cast<const Self *>(data);
if (!levelSet)
{
// pointer could not be cast back down
itkExceptionMacro("LevelSetSparseImage::Graft() cannot cast " << typeid(data).name() << " to "
<< typeid(Self *).name());
}
this->m_LabelMap->Graft(levelSet->m_LabelMap);
if (&m_Layers != &(levelSet->m_Layers))
{
m_Layers.clear();
LayerMapType newLayers(levelSet->m_Layers);
std::swap(m_Layers, newLayers);
}
}
template <typename TOutput, unsigned int VDimension>
auto
LevelSetSparseImage<TOutput, VDimension>::GetLayer(LayerIdType value) const -> const LayerType &
{
auto it = m_Layers.find(value);
if (it == m_Layers.end())
{
itkGenericExceptionMacro("This layer does not exist");
}
return it->second;
}
template <typename TOutput, unsigned int VDimension>
auto
LevelSetSparseImage<TOutput, VDimension>::GetLayer(LayerIdType value) -> LayerType &
{
auto it = m_Layers.find(value);
if (it == m_Layers.end())
{
itkGenericExceptionMacro("This layer does not exist");
}
return it->second;
}
template <typename TOutput, unsigned int VDimension>
void
LevelSetSparseImage<TOutput, VDimension>::SetLayer(LayerIdType value, const LayerType & layer)
{
const LayerMapIterator it = m_Layers.find(value);
if (it != m_Layers.end())
{
it->second = layer;
}
else
{
itkGenericExceptionMacro(<< value << "is out of bounds");
}
}
template <typename TOutput, unsigned int VDimension>
void
LevelSetSparseImage<TOutput, VDimension>::Initialize()
{
Superclass::Initialize();
this->m_LabelMap = nullptr;
this->InitializeLayers();
this->InitializeInternalLabelList();
}
template <typename TOutput, unsigned int VDimension>
void
LevelSetSparseImage<TOutput, VDimension>::CopyInformation(const DataObject * data)
{
Superclass::CopyInformation(data);
const auto * LevelSet = dynamic_cast<const Self *>(data);
if (!LevelSet)
{
// pointer could not be cast back down
itkExceptionMacro("itk::MalcolmSparseLevelSet::CopyInformation() cannot cast " << typeid(data).name() << " to "
<< typeid(Self *).name());
}
}
template <typename TOutput, unsigned int VDimension>
template <typename TLabel>
typename LabelObject<TLabel, VDimension>::Pointer
LevelSetSparseImage<TOutput, VDimension>::GetAsLabelObject()
{
using OutputLabelObjectType = LabelObject<TLabel, Dimension>;
auto object = OutputLabelObjectType::New();
if (this->m_InternalLabelList.empty())
{
itkGenericExceptionMacro("this->m_InternalLabelList empty");
}
auto lIt = this->m_InternalLabelList.begin();
auto lEnd = this->m_InternalLabelList.end();
while (lIt != lEnd)
{
LayerIdType id = *lIt;
LabelObjectPointer labelObject = this->m_LabelMap->GetLabelObject(id);
SizeValueType numberOfLines = labelObject->GetNumberOfLines();
for (SizeValueType i = 0; i < numberOfLines; ++i)
{
object->AddLine(labelObject->GetLine(i));
}
++lIt;
}
object->Optimize();
return object;
}
} // end namespace itk
#endif // itkLevelSetSparseImage_h
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