| 1 |
|
/*========================================================================= |
| 2 |
|
|
| 3 |
|
Program: Insight Segmentation & Registration Toolkit |
| 4 |
|
Module: $RCSfile: itkScaleTransform.txx.html,v $ |
| 5 |
|
Language: C++ |
| 6 |
|
Date: $Date: 2006/01/17 19:15:47 $ |
| 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 _itkScaleTransform_txx |
| 18 |
DEF |
#define _itkScaleTransform_txx |
| 19 |
|
|
| 20 |
|
#include "itkScaleTransform.h" |
| 21 |
|
|
| 22 |
|
|
| 23 |
|
namespace itk |
| 24 |
|
{ |
| 25 |
|
|
| 26 |
|
// Constructor with default arguments |
| 27 |
|
template<class ScalarType, unsigned int NDimensions> |
| 28 |
|
ScaleTransform<ScalarType, NDimensions>:: |
| 29 |
|
ScaleTransform():Superclass(SpaceDimension,ParametersDimension) |
| 30 |
|
{ |
| 31 |
|
m_Scale.Fill( 1.0 ); |
| 32 |
|
m_Center.Fill( 0.0 ); |
| 33 |
|
} |
| 34 |
|
|
| 35 |
|
|
| 36 |
|
|
| 37 |
|
// Destructor |
| 38 |
|
template<class ScalarType, unsigned int NDimensions> |
| 39 |
|
ScaleTransform<ScalarType, NDimensions>:: |
| 40 |
|
~ScaleTransform() |
| 41 |
|
{ |
| 42 |
|
return; |
| 43 |
|
} |
| 44 |
|
|
| 45 |
|
|
| 46 |
|
// Set the parameters |
| 47 |
|
template <class ScalarType, unsigned int NDimensions> |
| 48 |
|
void |
| 49 |
|
ScaleTransform<ScalarType, NDimensions> |
| 50 |
|
::SetParameters( const ParametersType & parameters ) |
| 51 |
|
{ |
| 52 |
|
for( unsigned int i=0; i<SpaceDimension; i++ ) |
| 53 |
|
{ |
| 54 |
|
m_Scale[i] = parameters[i]; |
| 55 |
|
} |
| 56 |
|
this->m_Parameters = parameters; |
| 57 |
|
} |
| 58 |
|
|
| 59 |
|
|
| 60 |
|
// Get Parameters |
| 61 |
|
template <class TScalarType,unsigned int NDimensions> |
| 62 |
|
const typename ScaleTransform<TScalarType,NDimensions>::ParametersType & |
| 63 |
|
ScaleTransform<TScalarType,NDimensions> |
| 64 |
|
::GetParameters( void ) const |
| 65 |
|
{ |
| 66 |
|
itkDebugMacro( << "Getting parameters "); |
| 67 |
|
|
| 68 |
|
// Transfer the translation part |
| 69 |
|
for(unsigned int i=0; i < SpaceDimension; i++) |
| 70 |
|
{ |
| 71 |
|
this->m_Parameters[i] = m_Scale[i]; |
| 72 |
|
} |
| 73 |
|
|
| 74 |
|
itkDebugMacro(<<"After getting parameters " << this->m_Parameters ); |
| 75 |
|
|
| 76 |
|
return this->m_Parameters; |
| 77 |
|
} |
| 78 |
|
|
| 79 |
|
|
| 80 |
EML |
|
| 81 |
|
// Print self |
| 82 |
|
template<class ScalarType, unsigned int NDimensions> |
| 83 |
|
void |
| 84 |
|
ScaleTransform<ScalarType, NDimensions>:: |
| 85 |
|
PrintSelf(std::ostream &os, Indent indent) const |
| 86 |
|
{ |
| 87 |
|
Superclass::PrintSelf(os, indent); |
| 88 |
|
|
| 89 |
|
os << indent << "Scale: " << m_Scale << std::endl; |
| 90 |
|
os << indent << "Center: " << m_Center << std::endl; |
| 91 |
|
} |
| 92 |
|
|
| 93 |
|
|
| 94 |
|
// Compose with another affine transformation |
| 95 |
|
template<class ScalarType, unsigned int NDimensions> |
| 96 |
|
void |
| 97 |
|
ScaleTransform<ScalarType, NDimensions>:: |
| 98 |
|
Compose(const Self * other, bool ) |
| 99 |
|
{ |
| 100 |
|
for( unsigned int i=0; i<SpaceDimension; i++ ) |
| 101 |
|
{ |
| 102 |
|
m_Scale[i] *= other->m_Scale[i]; |
| 103 |
|
} |
| 104 |
|
return; |
| 105 |
|
} |
| 106 |
|
|
| 107 |
|
|
| 108 |
|
// Compose with a scale |
| 109 |
|
template<class ScalarType, unsigned int NDimensions> |
| 110 |
|
void |
| 111 |
|
ScaleTransform<ScalarType, NDimensions>:: |
| 112 |
|
Scale(const ScaleType & scale, bool ) |
| 113 |
|
{ |
| 114 |
|
for( unsigned int i=0; i<SpaceDimension; i++ ) |
| 115 |
|
{ |
| 116 |
|
m_Scale[i] *= scale[i]; |
| 117 |
|
} |
| 118 |
|
return; |
| 119 |
|
} |
| 120 |
|
|
| 121 |
|
|
| 122 |
EML |
|
| 123 |
|
// Transform a point |
| 124 |
|
template<class ScalarType, unsigned int NDimensions> |
| 125 |
|
typename ScaleTransform<ScalarType, NDimensions>::OutputPointType |
| 126 |
|
ScaleTransform<ScalarType, NDimensions>:: |
| 127 |
|
TransformPoint(const InputPointType &point) const |
| 128 |
|
{ |
| 129 |
|
OutputPointType result; |
| 130 |
|
for( unsigned int i=0; i<SpaceDimension; i++ ) |
| 131 |
|
{ |
| 132 |
|
result[i] = ( point[i] - m_Center[i] ) * m_Scale[i] + m_Center[i]; |
| 133 |
|
} |
| 134 |
|
return result; |
| 135 |
|
} |
| 136 |
|
|
| 137 |
|
|
| 138 |
|
// Transform a vector |
| 139 |
|
template<class ScalarType, unsigned int NDimensions> |
| 140 |
|
typename ScaleTransform<ScalarType, NDimensions>::OutputVectorType |
| 141 |
|
ScaleTransform<ScalarType, NDimensions>:: |
| 142 |
|
TransformVector(const InputVectorType &vect) const |
| 143 |
|
{ |
| 144 |
|
OutputVectorType result; |
| 145 |
|
for( unsigned int i=0; i<SpaceDimension; i++ ) |
| 146 |
|
{ |
| 147 |
|
result[i] = vect[i] * m_Scale[i]; |
| 148 |
|
} |
| 149 |
|
return result; |
| 150 |
|
} |
| 151 |
|
|
| 152 |
|
|
| 153 |
|
// Transform a vnl_vector_fixed |
| 154 |
|
template<class ScalarType, unsigned int NDimensions> |
| 155 |
|
typename ScaleTransform<ScalarType, NDimensions>::OutputVnlVectorType |
| 156 |
|
ScaleTransform<ScalarType, NDimensions>:: |
| 157 |
|
TransformVector(const InputVnlVectorType &vect) const |
| 158 |
|
{ |
| 159 |
|
OutputVnlVectorType result; |
| 160 |
|
for( unsigned int i=0; i<SpaceDimension; i++ ) |
| 161 |
|
{ |
| 162 |
|
result[i] = vect[i] * m_Scale[i]; |
| 163 |
|
} |
| 164 |
|
return result; |
| 165 |
|
} |
| 166 |
|
|
| 167 |
|
|
| 168 |
|
// Transform a CovariantVector |
| 169 |
|
template<class ScalarType, unsigned int NDimensions> |
| 170 |
|
typename ScaleTransform<ScalarType, NDimensions>::OutputCovariantVectorType |
| 171 |
|
ScaleTransform<ScalarType, NDimensions>:: |
| 172 |
|
TransformCovariantVector(const InputCovariantVectorType &vect) const |
| 173 |
|
{ |
| 174 |
|
// Covariant Vectors are scaled by the inverse |
| 175 |
|
OutputCovariantVectorType result; |
| 176 |
|
for( unsigned int i=0; i<SpaceDimension; i++ ) |
| 177 |
|
{ |
| 178 |
|
result[i] = vect[i] / m_Scale[i]; |
| 179 |
|
} |
| 180 |
|
return result; |
| 181 |
|
} |
| 182 |
|
|
| 183 |
|
|
| 184 |
EML |
|
| 185 |
|
// Back transform a point |
| 186 |
|
template<class ScalarType, unsigned int NDimensions> |
| 187 |
|
typename ScaleTransform<ScalarType, NDimensions>::InputPointType |
| 188 |
|
ScaleTransform<ScalarType, NDimensions>:: |
| 189 |
|
BackTransform(const OutputPointType &point) const { |
| 190 |
|
InputPointType result; |
| 191 |
|
for( unsigned int i=0; i<SpaceDimension; i++ ) |
| 192 |
|
{ |
| 193 |
|
result[i] = ( point[i] + m_Center[i] ) / m_Scale[i] - m_Center[i]; |
| 194 |
|
} |
| 195 |
|
return result; |
| 196 |
|
} |
| 197 |
|
|
| 198 |
|
|
| 199 |
EML |
|
| 200 |
EML |
|
| 201 |
|
// Back transform a vector |
| 202 |
|
template<class ScalarType, unsigned int NDimensions> |
| 203 |
|
typename ScaleTransform<ScalarType, NDimensions>::InputVectorType |
| 204 |
|
ScaleTransform<ScalarType, NDimensions>:: |
| 205 |
|
BackTransform(const OutputVectorType &vect ) const |
| 206 |
|
{ |
| 207 |
|
InputVectorType result; |
| 208 |
|
for( unsigned int i=0; i<SpaceDimension; i++ ) |
| 209 |
|
{ |
| 210 |
|
result[i] = vect[i] / m_Scale[i]; |
| 211 |
|
} |
| 212 |
|
return result; |
| 213 |
|
} |
| 214 |
|
|
| 215 |
|
|
| 216 |
EML |
|
| 217 |
EML |
|
| 218 |
|
// Back transform a vnl_vector |
| 219 |
|
template<class ScalarType, unsigned int NDimensions> |
| 220 |
|
typename ScaleTransform<ScalarType, NDimensions>::InputVnlVectorType |
| 221 |
|
ScaleTransform<ScalarType, NDimensions>:: |
| 222 |
|
BackTransform(const OutputVnlVectorType &vect ) const |
| 223 |
|
{ |
| 224 |
|
InputVnlVectorType result; |
| 225 |
|
for( unsigned int i=0; i<SpaceDimension; i++ ) |
| 226 |
|
{ |
| 227 |
|
result[i] = vect[i] / m_Scale[i]; |
| 228 |
|
} |
| 229 |
|
return result; |
| 230 |
|
} |
| 231 |
|
|
| 232 |
|
|
| 233 |
|
// Back Transform a CovariantVector |
| 234 |
|
template<class ScalarType, unsigned int NDimensions> |
| 235 |
|
typename ScaleTransform<ScalarType, NDimensions>::InputCovariantVectorType |
| 236 |
|
ScaleTransform<ScalarType, NDimensions>:: |
| 237 |
|
BackTransform(const OutputCovariantVectorType &vect) const |
| 238 |
|
{ |
| 239 |
|
// Covariant Vectors are scaled by the inverse |
| 240 |
|
InputCovariantVectorType result; |
| 241 |
|
for( unsigned int i=0; i<SpaceDimension; i++ ) |
| 242 |
|
{ |
| 243 |
|
result[i] = vect[i] * m_Scale[i]; |
| 244 |
|
} |
| 245 |
|
return result; |
| 246 |
|
} |
| 247 |
|
|
| 248 |
|
// Create and return an inverse transformation |
| 249 |
|
template<class ScalarType, unsigned int NDimensions> |
| 250 |
|
bool |
| 251 |
|
ScaleTransform<ScalarType, NDimensions>:: |
| 252 |
|
GetInverse(Self* inverse) const |
| 253 |
|
{ |
| 254 |
|
if(!inverse) |
| 255 |
|
{ |
| 256 |
|
return false; |
| 257 |
|
} |
| 258 |
|
|
| 259 |
|
for( unsigned int i=0; i<SpaceDimension; i++ ) |
| 260 |
|
{ |
| 261 |
|
inverse->m_Scale[i] = 1.0 / m_Scale[i]; |
| 262 |
|
} |
| 263 |
|
|
| 264 |
|
return true; |
| 265 |
|
} |
| 266 |
|
|
| 267 |
|
|
| 268 |
|
// Compute the Jacobian of the transformation |
| 269 |
|
// It follows the same order of Parameters vector |
| 270 |
|
template<class ScalarType, unsigned int NDimensions> |
| 271 |
|
const typename ScaleTransform<ScalarType, NDimensions>::JacobianType & |
| 272 |
|
ScaleTransform<ScalarType, NDimensions> |
| 273 |
|
::GetJacobian( const InputPointType & p ) const |
| 274 |
|
{ |
| 275 |
|
|
| 276 |
|
this->m_Jacobian.Fill(0); |
| 277 |
|
for(unsigned int dim=0; dim<SpaceDimension; dim++) |
| 278 |
|
{ |
| 279 |
|
this->m_Jacobian(dim,dim) = p[dim]; |
| 280 |
|
} |
| 281 |
|
return this->m_Jacobian; |
| 282 |
|
} |
| 283 |
|
|
| 284 |
|
|
| 285 |
|
} // namespace |
| 286 |
|
|
| 287 |
|
#endif |
| 288 |
|
|