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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 itkTransformParametersAdaptor_h
#define itkTransformParametersAdaptor_h
#include "itkTransformParametersAdaptorBase.h"
#include "itkTransform.h"
namespace itk
{
/** \class TransformParametersAdaptor
* \brief Base helper class intended for multi-resolution image registration.
*
* During multi-resolution image registration, it is often useful to expand
* the number of parameters describing the transform when going from one level
* to the next. For example, in B-spline registration, one often wants to
* increase the mesh size (or, equivalently, the control point grid size) for
* increased flexibility in optimizing the transform. This requires the
* propagation of the current transform solution to the next level where the
* solution is identical but with an increase in the number of parameters.
* This base class and those derived classes are meant to handle these types of
* situations.
*
* Basic usage will involve the user specifying the required fixed parameters, i.e.
*
\code
transformAdaptor->SetTransform( transform );
transformAdaptor->SetRequiredFixedParameters( fixedParameters );
transformAdaptor->AdaptTransformParameters();
\endcode
*
* which will adjust the transform based on the new fixed parameters.
*
* \author Nick Tustison
* \author Marius Staring
*
* \ingroup ITKRegistrationCommon
*/
template <typename TTransform>
class TransformParametersAdaptor
: public TransformParametersAdaptorBase<
Transform<typename TTransform::ScalarType, TTransform::InputSpaceDimension, TTransform::OutputSpaceDimension>>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(TransformParametersAdaptor);
/** Standard class type aliases. */
using Self = TransformParametersAdaptor;
using Superclass = TransformParametersAdaptorBase<
Transform<typename TTransform::ScalarType, TTransform::InputSpaceDimension, TTransform::OutputSpaceDimension>>;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(TransformParametersAdaptor);
/** Typedefs associated with the transform */
using typename Superclass::TransformBaseType;
using TransformType = TTransform;
using TransformPointer = typename TransformType::Pointer;
using typename Superclass::ParametersType;
using typename Superclass::ParametersValueType;
using typename Superclass::FixedParametersValueType;
using typename Superclass::FixedParametersType;
/** Set the transform to be adapted */
itkSetObjectMacro(Transform, TransformType);
void
SetTransform(TransformBaseType * _arg, void *) override
{
auto * tx = dynamic_cast<TransformType *>(_arg);
itkAssertOrThrowMacro(tx != nullptr, "Unable to convert Transform to require concrete transform!");
this->SetTransform(tx);
}
/** New macro for creation of through the object factory. */
itkNewMacro(Self);
/** Set the fixed parameters */
void
SetRequiredFixedParameters(const FixedParametersType fixedParameters) override
{
itkDebugMacro("setting RequiredFixedParameters to " << fixedParameters);
if (this->m_RequiredFixedParameters != fixedParameters)
{
this->m_RequiredFixedParameters = fixedParameters;
this->Modified();
}
}
/** Initialize the transform using the specified fixed parameters */
void
AdaptTransformParameters() override{};
protected:
TransformParametersAdaptor() = default;
~TransformParametersAdaptor() override = default;
void
PrintSelf(std::ostream & os, Indent indent) const override
{
Superclass::PrintSelf(os, indent);
itkPrintSelfObjectMacro(Transform);
}
TransformPointer m_Transform{};
}; // class TransformParametersAdaptor
} // namespace itk
#endif /* itkTransformParametersAdaptor_h */
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