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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* 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
*
* http://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 itkAttributePositionLabelMapFilter_hxx
#define itkAttributePositionLabelMapFilter_hxx
#include "itkAttributePositionLabelMapFilter.h"
#include "itkProgressReporter.h"
#include "itkLabelMapUtilities.h"
/*
*
* This code was contributed in the Insight Journal paper:
* "Label object representation and manipulation with ITK"
* by Lehmann G.
* https://hdl.handle.net/1926/584
* http://www.insight-journal.org/browse/publication/176
*
*/
namespace itk {
template <typename TImage, typename TAttributeAccessor, bool VPhysicalPosition>
AttributePositionLabelMapFilter<TImage, TAttributeAccessor, VPhysicalPosition>
::AttributePositionLabelMapFilter()
{
}
template <typename TImage, typename TAttributeAccessor, bool VPhysicalPosition>
void
AttributePositionLabelMapFilter<TImage, TAttributeAccessor, VPhysicalPosition>
::ThreadedProcessLabelObject( LabelObjectType * labelObject )
{
TAttributeAccessor accessor;
AttributeValueType position = accessor( labelObject );
// change it to an index position if it is physical
IndexType idx;
if( VPhysicalPosition )
{
Point< double, ImageDimension > point;
// copy the position to a point, required by TransformPhysicalPointToIndex
for( unsigned int i=0; i<ImageDimension; i++ )
{
point[i] = position[i];
}
this->GetOutput()->TransformPhysicalPointToIndex( point, idx );
}
else
{
// copy the position to the index, to avoid warnings
for( unsigned int i=0; i<ImageDimension; i++ )
{
idx[i] = position[i];
}
}
// clear the label object
labelObject->Clear();
// and mark only the pixel we are interested in
labelObject->AddIndex( idx );
}
template <typename TImage, typename TAttributeAccessor, bool VPhysicalPosition>
void
AttributePositionLabelMapFilter<TImage, TAttributeAccessor, VPhysicalPosition>
::PrintSelf(std::ostream &os, Indent indent) const
{
Superclass::PrintSelf(os, indent);
}
}// end namespace itk
#endif
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