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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 __itkScaleLogarithmicTransform_h
#define __itkScaleLogarithmicTransform_h
#include "itkScaleTransform.h"
namespace itk
{
/** \class ScaleLogarithmicTransform
* \brief Logarithmic Scale transformation of a vector space (e.g. space coordinates)
*
* The only difference between this class and its superclass the ScaleTransform
* is that here the parameters of the transformation are the logarithms of the
* scales. This facilitates to linearize the expressions used for optimization.
*
* \ingroup ITKTransform
*/
template <
typename TScalar = float, // Type for cordinate representation type (float or
// double)
unsigned int NDimensions = 3>
// Number of dimensions
class ScaleLogarithmicTransform :
public ScaleTransform< TScalar,
NDimensions >
{
public:
/** Standard class typedefs. */
typedef ScaleLogarithmicTransform Self;
typedef ScaleTransform< TScalar, NDimensions > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** New macro for creation of through a smart pointer. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(ScaleLogarithmicTransform, ScaleTransform);
/** Dimension of the domain space. */
itkStaticConstMacro(SpaceDimension, unsigned int, NDimensions);
itkStaticConstMacro(ParametersDimension, unsigned int, NDimensions);
/** Scalar type. */
typedef typename Superclass::ScalarType ScalarType;
/** Parameters type. */
typedef typename Superclass::ParametersType ParametersType;
typedef typename ParametersType::ValueType ParametersValueType;
/** Jacobian type. */
typedef typename Superclass::JacobianType JacobianType;
/** Standard vector type for this class. */
typedef typename Superclass::ScaleType ScaleType;
typedef typename ScaleType::ValueType ScalesValueType;
/** Standard vector type for this class. */
typedef typename Superclass::InputVectorType InputVectorType;
typedef typename Superclass::OutputVectorType OutputVectorType;
/** Standard covariant vector type for this class. */
typedef typename Superclass::InputCovariantVectorType InputCovariantVectorType;
typedef typename Superclass::OutputCovariantVectorType OutputCovariantVectorType;
/** Standard vnl_vector type for this class. */
typedef typename Superclass::InputVnlVectorType InputVnlVectorType;
typedef typename Superclass::OutputVnlVectorType OutputVnlVectorType;
/** Standard coordinate point type for this class. */
typedef typename Superclass::InputPointType InputPointType;
typedef typename Superclass::OutputPointType OutputPointType;
/** Set parameters.
* This method sets the parameters for the transform
* value specified by the user. */
void SetParameters(const ParametersType & parameters);
/** Get the parameters that uniquely define the transform
* This is typically used by optimizers.
* There are 4 parameters. The first one represents the
* rotation, the second one the scale and the last
* two represent the offset. */
const ParametersType & GetParameters(void) const;
/** Compute the Jacobian Matrix of the transformation at one point,
* allowing for thread-safety. */
virtual void ComputeJacobianWithRespectToParameters( const InputPointType & p, JacobianType & jacobian) const;
protected:
/** Construct an ScaleLogarithmicTransform object. */
ScaleLogarithmicTransform();
/** Destroy an ScaleLogarithmicTransform object. */
~ScaleLogarithmicTransform();
/** Print contents of an ScaleLogarithmicTransform */
void PrintSelf(std::ostream & os, Indent indent) const;
private:
ScaleLogarithmicTransform(const Self & other); // purposely not implemented
const Self & operator=(const Self &); // purposely not implemented
}; // class
// ScaleLogarithmicTransform
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkScaleLogarithmicTransform.hxx"
#endif
#endif /* __itkScaleLogarithmicTransform_h */
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