| 1 |
|
/*========================================================================= |
| 2 |
|
|
| 3 |
|
Program: Insight Segmentation & Registration Toolkit |
| 4 |
|
Module: $RCSfile: itkImageConstIteratorWithIndex.txx.html,v $ |
| 5 |
|
Language: C++ |
| 6 |
|
Date: $Date: 2006/01/17 19:15:36 $ |
| 7 |
|
Version: $Revision: 1.4 $ |
| 8 |
|
|
| 9 |
|
Copyright (c) Insight Software Consortium. All rights reserved. |
| 10 |
|
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details. |
| 11 |
|
|
| 12 |
|
This software is distributed WITHOUT ANY WARRANTY; without even |
| 13 |
|
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
| 14 |
|
PURPOSE. See the above copyright notices for more information. |
| 15 |
|
|
| 16 |
|
=========================================================================*/ |
| 17 |
DEF |
#ifndef _itkImageConstIteratorWithIndex_txx |
| 18 |
DEF |
#define _itkImageConstIteratorWithIndex_txx |
| 19 |
|
|
| 20 |
|
#include "itkImageConstIteratorWithIndex.h" |
| 21 |
|
|
| 22 |
|
namespace itk |
| 23 |
|
{ |
| 24 |
|
|
| 25 |
|
|
| 26 |
EML |
|
| 27 |
|
//---------------------------------------------------------------------- |
| 28 |
|
// Constructor |
| 29 |
|
//---------------------------------------------------------------------- |
| 30 |
|
template<class TImage> |
| 31 |
|
ImageConstIteratorWithIndex<TImage> |
| 32 |
|
::ImageConstIteratorWithIndex() |
| 33 |
|
{ |
| 34 |
|
m_Position = 0; |
| 35 |
|
m_Begin = 0; |
| 36 |
|
m_End = 0; |
| 37 |
|
m_Remaining = false; |
| 38 |
|
} |
| 39 |
|
|
| 40 |
|
|
| 41 |
EML |
|
| 42 |
|
//---------------------------------------------------------------------- |
| 43 |
|
// Constructor |
| 44 |
|
//---------------------------------------------------------------------- |
| 45 |
|
template<class TImage> |
| 46 |
|
ImageConstIteratorWithIndex<TImage> |
| 47 |
|
::ImageConstIteratorWithIndex(const Self& it) |
| 48 |
|
{ |
| 49 |
|
m_Image = it.m_Image; // copy the smart pointer |
| 50 |
|
|
| 51 |
|
m_PositionIndex = it.m_PositionIndex; |
| 52 |
|
m_BeginIndex = it.m_BeginIndex; |
| 53 |
|
m_EndIndex = it.m_EndIndex; |
| 54 |
|
m_Region = it.m_Region; |
| 55 |
|
|
| 56 |
|
memcpy(m_OffsetTable, it.m_OffsetTable, |
| 57 |
|
(ImageDimension+1)*sizeof(unsigned long)); |
| 58 |
|
|
| 59 |
|
m_Position = it.m_Position; |
| 60 |
|
m_Begin = it.m_Begin; |
| 61 |
|
m_End = it.m_End; |
| 62 |
|
m_Remaining = it.m_Remaining; |
| 63 |
|
|
| 64 |
|
m_PixelAccessor = it.m_PixelAccessor; |
| 65 |
|
m_PixelAccessorFunctor = it.m_PixelAccessorFunctor; |
| 66 |
|
m_PixelAccessorFunctor.SetBegin( m_Image->GetBufferPointer() ); |
| 67 |
|
} |
| 68 |
|
|
| 69 |
|
|
| 70 |
EML |
|
| 71 |
|
//---------------------------------------------------------------------- |
| 72 |
|
// Constructor |
| 73 |
|
//---------------------------------------------------------------------- |
| 74 |
|
template<class TImage> |
| 75 |
|
ImageConstIteratorWithIndex<TImage> |
| 76 |
|
::ImageConstIteratorWithIndex( const TImage *ptr, |
| 77 |
|
const RegionType & region ) |
| 78 |
|
{ |
| 79 |
|
m_Image = ptr; |
| 80 |
|
|
| 81 |
|
const InternalPixelType * buffer = m_Image->GetBufferPointer(); |
| 82 |
|
|
| 83 |
|
m_BeginIndex = region.GetIndex(); |
| 84 |
|
m_PositionIndex = m_BeginIndex; |
| 85 |
|
m_Region = region; |
| 86 |
|
|
| 87 |
|
memcpy(m_OffsetTable, m_Image->GetOffsetTable(), |
| 88 |
IND |
*********(ImageDimension+1)*sizeof(unsigned long)); |
| 89 |
|
|
| 90 |
|
// Compute the start position |
| 91 |
|
long offs = m_Image->ComputeOffset( m_BeginIndex ); |
| 92 |
|
m_Begin = buffer + offs; |
| 93 |
|
m_Position = m_Begin; |
| 94 |
|
|
| 95 |
|
// Compute the end offset |
| 96 |
|
m_Remaining = false; |
| 97 |
|
IndexType pastEnd; |
| 98 |
|
for (unsigned int i=0; i < ImageDimension; ++i) |
| 99 |
|
{ |
| 100 |
|
unsigned long size = region.GetSize()[i]; |
| 101 |
|
if( size > 0 ) |
| 102 |
|
{ |
| 103 |
|
m_Remaining = true; |
| 104 |
|
} |
| 105 |
|
m_EndIndex[i] = m_BeginIndex[i] + static_cast<long>(size); |
| 106 |
|
pastEnd[i] = m_BeginIndex[i] + static_cast<long>(size)-1; |
| 107 |
|
} |
| 108 |
|
m_End = buffer + m_Image->ComputeOffset( pastEnd ); |
| 109 |
|
|
| 110 |
|
m_PixelAccessor = m_Image->GetPixelAccessor(); |
| 111 |
|
m_PixelAccessorFunctor.SetPixelAccessor( m_PixelAccessor ); |
| 112 |
|
m_PixelAccessorFunctor.SetBegin( buffer ); |
| 113 |
|
|
| 114 |
|
GoToBegin(); |
| 115 |
|
|
| 116 |
|
} |
| 117 |
|
|
| 118 |
|
|
| 119 |
|
//---------------------------------------------------------------------- |
| 120 |
|
// Assignment Operator |
| 121 |
|
//---------------------------------------------------------------------- |
| 122 |
|
template<class TImage> |
| 123 |
|
ImageConstIteratorWithIndex<TImage> & |
| 124 |
|
ImageConstIteratorWithIndex<TImage> |
| 125 |
|
::operator=(const Self& it) |
| 126 |
|
{ |
| 127 |
|
m_Image = it.m_Image; // copy the smart pointer |
| 128 |
|
|
| 129 |
|
m_BeginIndex = it.m_BeginIndex; |
| 130 |
|
m_EndIndex = it.m_EndIndex; |
| 131 |
|
m_PositionIndex = it.m_PositionIndex; |
| 132 |
|
m_Region = it.m_Region; |
| 133 |
|
|
| 134 |
|
memcpy(m_OffsetTable, it.m_OffsetTable, |
| 135 |
|
(ImageDimension+1)*sizeof(unsigned long)); |
| 136 |
|
|
| 137 |
|
m_Position = it.m_Position; |
| 138 |
|
m_Begin = it.m_Begin; |
| 139 |
|
m_End = it.m_End; |
| 140 |
|
m_Remaining = it.m_Remaining; |
| 141 |
|
|
| 142 |
|
m_PixelAccessor = it.m_PixelAccessor; |
| 143 |
|
m_PixelAccessorFunctor = it.m_PixelAccessorFunctor; |
| 144 |
|
m_PixelAccessorFunctor.SetBegin( m_Image->GetBufferPointer() ); |
| 145 |
|
|
| 146 |
|
return *this; |
| 147 |
|
} |
| 148 |
|
|
| 149 |
|
|
| 150 |
|
|
| 151 |
|
//---------------------------------------------------------------------------- |
| 152 |
|
// Begin() is the first pixel in the region. |
| 153 |
|
//---------------------------------------------------------------------------- |
| 154 |
|
template<class TImage> |
| 155 |
|
ImageConstIteratorWithIndex<TImage> |
| 156 |
|
ImageConstIteratorWithIndex<TImage> |
| 157 |
|
::Begin() const |
| 158 |
|
{ |
| 159 |
|
Self it( *this ); |
| 160 |
|
it.GoToBegin(); |
| 161 |
|
return it; |
| 162 |
|
} |
| 163 |
|
|
| 164 |
|
|
| 165 |
|
//---------------------------------------------------------------------------- |
| 166 |
|
// GoToBegin() is the first pixel in the region. |
| 167 |
|
//---------------------------------------------------------------------------- |
| 168 |
|
template<class TImage> |
| 169 |
|
void |
| 170 |
|
ImageConstIteratorWithIndex<TImage> |
| 171 |
|
::GoToBegin() |
| 172 |
|
{ |
| 173 |
|
// Set the position at begin |
| 174 |
|
|
| 175 |
|
m_Position = m_Begin; |
| 176 |
|
m_PositionIndex = m_BeginIndex; |
| 177 |
|
|
| 178 |
|
if( m_Region.GetNumberOfPixels() > 0 ) |
| 179 |
|
{ |
| 180 |
|
m_Remaining = true; |
| 181 |
|
} |
| 182 |
|
else |
| 183 |
|
{ |
| 184 |
|
m_Remaining = false; |
| 185 |
|
} |
| 186 |
|
|
| 187 |
|
} |
| 188 |
|
|
| 189 |
|
|
| 190 |
|
//---------------------------------------------------------------------------- |
| 191 |
|
// End() is the last pixel in the region. DEPRECATED |
| 192 |
|
//---------------------------------------------------------------------------- |
| 193 |
|
template<class TImage> |
| 194 |
|
ImageConstIteratorWithIndex<TImage> |
| 195 |
|
ImageConstIteratorWithIndex<TImage> |
| 196 |
|
::End() const |
| 197 |
|
{ |
| 198 |
|
Self it( *this ); |
| 199 |
|
it.GoToReverseBegin(); |
| 200 |
|
return it; |
| 201 |
|
} |
| 202 |
|
|
| 203 |
|
|
| 204 |
|
//---------------------------------------------------------------------------- |
| 205 |
|
// GoToReverseBegin() is the last pixel in the region. |
| 206 |
|
//---------------------------------------------------------------------------- |
| 207 |
|
template<class TImage> |
| 208 |
|
void |
| 209 |
|
ImageConstIteratorWithIndex<TImage> |
| 210 |
|
::GoToReverseBegin() |
| 211 |
|
{ |
| 212 |
|
|
| 213 |
|
for (unsigned int i=0; i < ImageDimension; ++i) |
| 214 |
|
{ |
| 215 |
|
m_PositionIndex[i] = m_EndIndex[i]-1; |
| 216 |
|
} |
| 217 |
|
|
| 218 |
|
if( m_Region.GetNumberOfPixels() > 0 ) |
| 219 |
|
{ |
| 220 |
|
m_Remaining = true; |
| 221 |
|
} |
| 222 |
|
else |
| 223 |
|
{ |
| 224 |
|
m_Remaining = false; |
| 225 |
|
} |
| 226 |
|
|
| 227 |
|
|
| 228 |
|
// Set the position at the end |
| 229 |
|
const InternalPixelType * buffer = m_Image->GetBufferPointer(); |
| 230 |
LEN |
const unsigned long offset = m_Image->ComputeOffset( m_PositionIndex ); |
| 231 |
|
m_Position = buffer + offset; |
| 232 |
|
|
| 233 |
|
} |
| 234 |
|
|
| 235 |
|
|
| 236 |
|
} // end namespace itk |
| 237 |
|
|
| 238 |
|
|
| 239 |
EML |
|
| 240 |
EML |
|
| 241 |
|
#endif |
| 242 |
|
|