/usr/include/ITK-4.9/itkReflectiveImageRegionConstIterator.hxx is in libinsighttoolkit4-dev 4.9.0-4ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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 itkReflectiveImageRegionConstIterator_hxx
#define itkReflectiveImageRegionConstIterator_hxx
#include "itkReflectiveImageRegionConstIterator.h"
namespace itk
{
template< typename TImage >
ReflectiveImageRegionConstIterator< TImage >
::ReflectiveImageRegionConstIterator():ImageConstIteratorWithIndex< TImage >()
{
for( unsigned int dim = 0; dim < TImage::ImageDimension; dim++ )
{
m_BeginOffset[dim] = 0;
m_EndOffset[dim] = 0;
}
this->GoToBegin();
}
template< typename TImage >
ReflectiveImageRegionConstIterator< TImage >
::ReflectiveImageRegionConstIterator(TImage *ptr, const RegionType & region):
ImageConstIteratorWithIndex< TImage >(ptr, region)
{
for( unsigned int dim = 0; dim < TImage::ImageDimension; dim++ )
{
m_BeginOffset[dim] = 0;
m_EndOffset[dim] = 0;
}
this->GoToBegin();
}
template< typename TImage >
ReflectiveImageRegionConstIterator< TImage >
::ReflectiveImageRegionConstIterator(const Self & it)
{
this->operator= ( it );
this->GoToBegin();
}
template< typename TImage >
ReflectiveImageRegionConstIterator< TImage >
::ReflectiveImageRegionConstIterator(
const ImageConstIteratorWithIndex< TImage > & it)
{
this->ImageConstIteratorWithIndex< TImage >::operator=(it);
for( unsigned int dim = 0; dim < TImage::ImageDimension; dim++ )
{
m_BeginOffset[dim] = 0;
m_EndOffset[dim] = 0;
}
}
template< typename TImage >
ReflectiveImageRegionConstIterator< TImage > &
ReflectiveImageRegionConstIterator< TImage >
::operator=(const Self & it)
{
if(this != &it)
{
this->ImageConstIteratorWithIndex< TImage >::operator=(it);
for( unsigned int dim = 0; dim < TImage::ImageDimension; dim++ )
{
m_BeginOffset[dim] = it.m_BeginOffset[dim];
m_EndOffset[dim] = it.m_EndOffset[dim];
}
}
return *this;
}
template< typename TImage >
void
ReflectiveImageRegionConstIterator< TImage >
::GoToBegin(void)
{
this->m_PositionIndex = this->m_BeginIndex + this->m_BeginOffset;
this->m_Position = this->m_Image->GetBufferPointer()
+ this->m_Image->ComputeOffset(this->m_PositionIndex);
this->m_Remaining = false;
SizeType size = this->m_Region.GetSize();
for ( unsigned int i = 0; i < TImage::ImageDimension; ++i )
{
m_IsFirstPass[i] = true;
SizeValueType tempSize = size[i];
if ( tempSize > 0 )
{
this->m_Remaining = true;
}
}
}
template< typename TImage >
bool
ReflectiveImageRegionConstIterator< TImage >
::IsReflected(unsigned int dim) const
{
return !m_IsFirstPass[dim];
}
template< typename TImage >
void
ReflectiveImageRegionConstIterator< TImage >
::FillOffsets(const OffsetValueType & value)
{
for( unsigned int dim = 0; dim < TImage::ImageDimension; dim++ )
{
m_BeginOffset[dim] = value;
m_EndOffset[dim] = value;
}
}
//----------------------------------------------------------------------
// Advance along the line
//----------------------------------------------------------------------
template< typename TImage >
ReflectiveImageRegionConstIterator< TImage > &
ReflectiveImageRegionConstIterator< TImage >
::operator++()
{
this->m_Remaining = false;
for ( unsigned int in = 0; in < TImage::ImageDimension; in++ )
{
if ( m_IsFirstPass[in] )
{
if ( this->m_PositionIndex[in]+1 < this->m_EndIndex[in] )
{
this->m_PositionIndex[in]++;
this->m_Position += this->m_OffsetTable[in];
this->m_Remaining = true;
break;
}
else
{
this->m_PositionIndex[in] = this->m_EndIndex[in] - m_EndOffset[in] - 1;
this->m_Position -= (this->m_EndOffset[in]) * (this->m_OffsetTable[in]);
m_IsFirstPass[in] = false;
this->m_Remaining = true;
break;
}
}
else
{
if ( this->m_PositionIndex[in]-1 >= this->m_BeginIndex[in] )
{
this->m_PositionIndex[in]--;
this->m_Position -= this->m_OffsetTable[in];
this->m_Remaining = true;
break;
}
else
{
this->m_PositionIndex[in] = this->m_BeginIndex[in] + m_BeginOffset[in];
this->m_Position += (this->m_BeginOffset[in]) * (this->m_OffsetTable[in]);
m_IsFirstPass[in] = true;
}
}
}
if ( !this->m_Remaining ) // It will not advance here otherwise
{
this->m_Position = this->m_End;
}
return *this;
}
} // end namespace itk
#endif
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