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/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://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 TParametersValueType = float, unsigned int VDimension = 3>
class ITK_TEMPLATE_EXPORT ScaleLogarithmicTransform : public ScaleTransform<TParametersValueType, VDimension>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(ScaleLogarithmicTransform);
/** Standard class type aliases. */
using Self = ScaleLogarithmicTransform;
using Superclass = ScaleTransform<TParametersValueType, VDimension>;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** New macro for creation of through a smart pointer. */
itkNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(ScaleLogarithmicTransform);
/** Dimension of the domain space. */
static constexpr unsigned int SpaceDimension = VDimension;
static constexpr unsigned int ParametersDimension = VDimension;
/** Scalar type. */
using typename Superclass::ScalarType;
/** Parameters type. */
using typename Superclass::ParametersType;
using ParametersValueType = typename ParametersType::ValueType;
using typename Superclass::FixedParametersType;
using FixedParametersValueType = typename FixedParametersType::ValueType;
/** Jacobian type. */
using typename Superclass::JacobianType;
using typename Superclass::JacobianPositionType;
using typename Superclass::InverseJacobianPositionType;
/** Standard vector type for this class. */
using typename Superclass::ScaleType;
using ScalesValueType = typename ScaleType::ValueType;
/** Standard vector type for this class. */
using typename Superclass::InputVectorType;
using typename Superclass::OutputVectorType;
/** Standard covariant vector type for this class. */
using typename Superclass::InputCovariantVectorType;
using typename Superclass::OutputCovariantVectorType;
/** Standard vnl_vector type for this class. */
using typename Superclass::InputVnlVectorType;
using typename Superclass::OutputVnlVectorType;
/** Standard coordinate point type for this class. */
using typename Superclass::InputPointType;
using typename Superclass::OutputPointType;
/** Set parameters.
* This method sets the parameters for the transform
* value specified by the user. */
void
SetParameters(const ParametersType & parameters) override;
/** 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() const override;
/** Compute the Jacobian Matrix of the transformation at one point,
* allowing for thread-safety. */
void
ComputeJacobianWithRespectToParameters(const InputPointType & p, JacobianType & jacobian) const override;
protected:
/** Construct an ScaleLogarithmicTransform object. */
ScaleLogarithmicTransform() = default;
/** Destroy an ScaleLogarithmicTransform object. */
~ScaleLogarithmicTransform() override = default;
/** Print contents of an ScaleLogarithmicTransform */
void
PrintSelf(std::ostream & os, Indent indent) const override;
}; // class
// ScaleLogarithmicTransform
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkScaleLogarithmicTransform.hxx"
#endif
#endif /* itkScaleLogarithmicTransform_h */
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