| 1 |
|
/*========================================================================= |
| 2 |
|
|
| 3 |
|
Program: Insight Segmentation & Registration Toolkit |
| 4 |
|
Module: $RCSfile: itkCenteredSimilarity2DTransform.txx.html,v $ |
| 5 |
|
Language: C++ |
| 6 |
|
Date: $Date: 2006/01/17 19:15:33 $ |
| 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 _itkCenteredSimilarity2DTransform_txx |
| 18 |
DEF |
#define _itkCenteredSimilarity2DTransform_txx |
| 19 |
|
|
| 20 |
|
#include "itkCenteredSimilarity2DTransform.h" |
| 21 |
|
|
| 22 |
|
|
| 23 |
|
namespace itk |
| 24 |
|
{ |
| 25 |
|
|
| 26 |
|
// Constructor with default arguments |
| 27 |
|
template <class TScalarType> |
| 28 |
|
CenteredSimilarity2DTransform<TScalarType> |
| 29 |
LEN |
::CenteredSimilarity2DTransform():Superclass(OutputSpaceDimension, ParametersDimension) |
| 30 |
|
{ |
| 31 |
|
} |
| 32 |
|
|
| 33 |
|
|
| 34 |
|
// Constructor with arguments |
| 35 |
|
template<class TScalarType> |
| 36 |
|
CenteredSimilarity2DTransform<TScalarType>:: |
| 37 |
|
CenteredSimilarity2DTransform( unsigned int spaceDimension, |
| 38 |
|
unsigned int parametersDimension): |
| 39 |
IND |
**Superclass(spaceDimension,parametersDimension) |
| 40 |
|
{ |
| 41 |
|
|
| 42 |
|
} |
| 43 |
|
|
| 44 |
|
|
| 45 |
|
// Set Parameters |
| 46 |
|
template <class TScalarType> |
| 47 |
|
void |
| 48 |
|
CenteredSimilarity2DTransform<TScalarType> |
| 49 |
|
::SetParameters( const ParametersType & parameters ) |
| 50 |
|
{ |
| 51 |
|
itkDebugMacro( << "Setting paramaters " << parameters ); |
| 52 |
|
|
| 53 |
|
// Set scale |
| 54 |
|
this->SetVarScale(parameters[0]); |
| 55 |
|
|
| 56 |
|
// Set angle |
| 57 |
|
this->SetVarAngle( parameters[1] ); |
| 58 |
|
|
| 59 |
|
InputPointType center; |
| 60 |
|
for(unsigned int j=0; j < SpaceDimension; j++) |
| 61 |
|
{ |
| 62 |
|
center[j] = parameters[j+2]; |
| 63 |
|
} |
| 64 |
|
this->SetVarCenter( center ); |
| 65 |
|
|
| 66 |
|
// Set translation |
| 67 |
|
OffsetType translation; |
| 68 |
|
for(unsigned int i=0; i < SpaceDimension; i++) |
| 69 |
|
{ |
| 70 |
|
translation[i] = parameters[i+4]; |
| 71 |
|
} |
| 72 |
|
|
| 73 |
|
this->SetVarTranslation( translation ); |
| 74 |
|
|
| 75 |
|
this->ComputeMatrix(); |
| 76 |
|
this->ComputeOffset(); |
| 77 |
|
|
| 78 |
|
itkDebugMacro(<<"After setting paramaters "); |
| 79 |
|
} |
| 80 |
|
|
| 81 |
|
|
| 82 |
|
// Get Parameters |
| 83 |
|
template <class TScalarType> |
| 84 |
|
const typename CenteredSimilarity2DTransform<TScalarType>::ParametersType & |
| 85 |
|
CenteredSimilarity2DTransform<TScalarType> |
| 86 |
|
::GetParameters( void ) const |
| 87 |
|
{ |
| 88 |
|
itkDebugMacro( << "Getting parameters "); |
| 89 |
|
|
| 90 |
|
this->m_Parameters[0] = this->GetScale(); |
| 91 |
|
this->m_Parameters[1] = this->GetAngle(); |
| 92 |
|
|
| 93 |
|
InputPointType center = this->GetCenter(); |
| 94 |
|
for(unsigned int j=0; j < SpaceDimension; j++) |
| 95 |
|
{ |
| 96 |
|
this->m_Parameters[j+2] = center[j]; |
| 97 |
|
} |
| 98 |
|
|
| 99 |
|
OffsetType translation = this->GetTranslation(); |
| 100 |
|
for(unsigned int i=0; i < SpaceDimension; i++) |
| 101 |
|
{ |
| 102 |
|
this->m_Parameters[i+4] = translation[i]; |
| 103 |
|
} |
| 104 |
|
|
| 105 |
|
itkDebugMacro(<<"After getting parameters " << this->m_Parameters ); |
| 106 |
|
|
| 107 |
|
return this->m_Parameters; |
| 108 |
|
} |
| 109 |
|
|
| 110 |
|
// Compute the Jacobian |
| 111 |
|
template<class TScalarType> |
| 112 |
|
const typename CenteredSimilarity2DTransform<TScalarType>::JacobianType & |
| 113 |
|
CenteredSimilarity2DTransform<TScalarType>:: |
| 114 |
|
GetJacobian( const InputPointType & p ) const |
| 115 |
|
{ |
| 116 |
|
const double angle = this->GetAngle(); |
| 117 |
|
const double ca = cos( angle ); |
| 118 |
|
const double sa = sin( angle ); |
| 119 |
|
|
| 120 |
|
this->m_Jacobian.Fill(0.0); |
| 121 |
|
|
| 122 |
|
const InputPointType center = this->GetCenter(); |
| 123 |
|
const double cx = center[0]; |
| 124 |
|
const double cy = center[1]; |
| 125 |
|
|
| 126 |
|
const OutputVectorType translation = this->GetTranslation(); |
| 127 |
|
|
| 128 |
|
// derivatives with respect to the scale |
| 129 |
|
this->m_Jacobian[0][0] = ca * ( p[0] - cx ) - sa * ( p[1] - cy ); |
| 130 |
|
this->m_Jacobian[1][0] = sa * ( p[0] - cx ) + ca * ( p[1] - cy ); |
| 131 |
|
|
| 132 |
|
// derivatives with respect to the angle |
| 133 |
LEN |
this->m_Jacobian[0][1] = ( -sa * ( p[0] - cx ) - ca * ( p[1] - cy ) ) * this->GetScale(); |
| 134 |
LEN |
this->m_Jacobian[1][1] = ( ca * ( p[0] - cx ) - sa * ( p[1] - cy ) ) * this->GetScale(); |
| 135 |
|
|
| 136 |
|
// compute derivatives with respect to the center part |
| 137 |
|
// first with respect to cx |
| 138 |
|
this->m_Jacobian[0][2] = 1.0 - ca * this->GetScale(); |
| 139 |
|
this->m_Jacobian[1][2] = - sa * this->GetScale(); |
| 140 |
|
// then with respect to cy |
| 141 |
|
this->m_Jacobian[0][3] = sa * this->GetScale(); |
| 142 |
|
this->m_Jacobian[1][3] = 1.0 - ca * this->GetScale(); |
| 143 |
|
|
| 144 |
|
// compute derivatives with respect to the translation part |
| 145 |
|
// first with respect to tx |
| 146 |
|
this->m_Jacobian[0][4] = 1.0; |
| 147 |
|
this->m_Jacobian[1][4] = 0.0; |
| 148 |
|
// first with respect to ty |
| 149 |
|
this->m_Jacobian[0][5] = 0.0; |
| 150 |
|
this->m_Jacobian[1][5] = 1.0; |
| 151 |
|
|
| 152 |
|
return this->m_Jacobian; |
| 153 |
|
|
| 154 |
|
} |
| 155 |
|
|
| 156 |
|
template <class TScalarType> |
| 157 |
|
void |
| 158 |
|
CenteredSimilarity2DTransform<TScalarType>:: |
| 159 |
|
SetFixedParameters( const ParametersType & itkNotUsed(parameters) ) |
| 160 |
|
{ |
| 161 |
IND |
*// no fixed parameters |
| 162 |
|
} |
| 163 |
|
|
| 164 |
|
template <class TScalarType> |
| 165 |
|
const typename CenteredSimilarity2DTransform<TScalarType>::ParametersType & |
| 166 |
|
CenteredSimilarity2DTransform<TScalarType>:: |
| 167 |
|
GetFixedParameters( void ) const |
| 168 |
|
{ |
| 169 |
|
// return dummy parameters |
| 170 |
|
this->m_FixedParameters.SetSize(0); |
| 171 |
|
return this->m_FixedParameters; |
| 172 |
|
} |
| 173 |
|
|
| 174 |
|
// Print self |
| 175 |
|
template<class TScalarType> |
| 176 |
|
void |
| 177 |
|
CenteredSimilarity2DTransform<TScalarType>:: |
| 178 |
|
PrintSelf(std::ostream &os, Indent indent) const |
| 179 |
|
{ |
| 180 |
|
Superclass::PrintSelf(os,indent); |
| 181 |
|
} |
| 182 |
|
|
| 183 |
|
// Create and return an inverse transformation |
| 184 |
|
template<class TScalarType> |
| 185 |
|
void |
| 186 |
|
CenteredSimilarity2DTransform<TScalarType>:: |
| 187 |
|
CloneInverseTo( Pointer & result ) const |
| 188 |
|
{ |
| 189 |
|
result = New(); |
| 190 |
|
result->SetCenter( this->GetCenter() ); // inverse have the same center |
| 191 |
|
result->SetScale( 1.0 / this->GetScale() ); |
| 192 |
|
result->SetAngle( -this->GetAngle() ); |
| 193 |
LEN |
result->SetTranslation( -( this->GetInverseMatrix() * this->GetTranslation() ) ); |
| 194 |
|
} |
| 195 |
|
|
| 196 |
|
// Create and return a clone of the transformation |
| 197 |
|
template<class TScalarType> |
| 198 |
|
void |
| 199 |
|
CenteredSimilarity2DTransform<TScalarType>:: |
| 200 |
|
CloneTo( Pointer & result ) const |
| 201 |
|
{ |
| 202 |
|
result = New(); |
| 203 |
|
result->SetCenter( this->GetCenter() ); |
| 204 |
|
result->SetScale( this->GetScale() ); |
| 205 |
|
result->SetAngle( this->GetAngle() ); |
| 206 |
|
result->SetTranslation( this->GetTranslation() ); |
| 207 |
|
} |
| 208 |
|
|
| 209 |
|
} // namespace |
| 210 |
|
|
| 211 |
|
#endif |
| 212 |
|
|
