/usr/include/ITK-4.5/itkConditionalConstIterator.h is in libinsighttoolkit4-dev 4.5.0-3.
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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 __itkConditionalConstIterator_h
#define __itkConditionalConstIterator_h
#include "itkIndex.h"
namespace itk
{
/** \class ConditionalConstIterator
* \brief A base class for other iterators where membership in the set
* of output pixels is conditional upon some property, calculation,
* etc. For example, a threshold iterator might walk a region and
* return only those pixels which meet a minimum intensity condition.
*
* This class is the const version of the ConditionalIterator.
* For this reason, it doesn't support the Set() method.
*
* \ingroup ImageIterators
* \ingroup ITKCommon
*/
template< typename TImage >
class ConditionalConstIterator
{
public:
/** Standard class typedefs. */
typedef ConditionalConstIterator Self;
/** Dimension of the image the iterator walks. This constant is needed so
* that functions that are templated over image iterator type (as opposed to
* being templated over pixel type and dimension) can have compile time
* access to the dimension of the image that the iterator walks. */
itkStaticConstMacro(NDimension, unsigned int, TImage::ImageDimension);
/** Index typedef support. */
typedef typename TImage::IndexType IndexType;
/** Size typedef support. */
typedef typename TImage::SizeType SizeType;
/** Region typedef support. */
typedef typename TImage::RegionType RegionType;
/** Image typedef support. */
typedef TImage ImageType;
/** Internal Pixel Type */
typedef typename TImage::InternalPixelType InternalPixelType;
/** External Pixel Type */
typedef typename TImage::PixelType PixelType;
/** Compute whether the index of interest should be included in the flood */
virtual bool IsPixelIncluded(const IndexType & index) const = 0;
/** operator= is provided to make sure the handle to the image is properly
* reference counted. */
Self & operator=(const Self & it)
{
m_IsAtEnd = it.m_IsAtEnd; // copy the end flag
m_Image = it.m_Image; // copy the smart pointer
m_Region = it.m_Region; // copy the region
return *this;
}
/** Get the dimension (size) of the index. */
static unsigned int GetIteratorDimension(void)
{
return Self::NDimension;
}
/** Get the index at the current iterator location. */
virtual const IndexType GetIndex() = 0;
/** Get the pixel value at the current iterator location. */
virtual const PixelType Get(void) const = 0;
/** Is the iterator at the end of the region? */
virtual bool IsAtEnd() = 0;
/** Walk forward one index. */
virtual void operator++() = 0;
/** Constructor */
ConditionalConstIterator();
/** Destructor */
virtual ~ConditionalConstIterator();
protected: //made protected so other iterators can access
/** Smart pointer to the source image. */
//SmartPointer<const ImageType> m_Image;
typename ImageType::ConstWeakPointer m_Image;
/** Region type to iterate over. */
RegionType m_Region;
/** Is the iterator at the end of its walk? */
bool m_IsAtEnd;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkConditionalConstIterator.hxx"
#endif
#endif
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