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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 itkTransformParametersAdaptorBase_h
#define itkTransformParametersAdaptorBase_h
#include "itkObject.h"
#include "itkObjectFactory.h"
namespace itk
{
/** \class TransformParametersAdaptorBase
* \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 TransformParametersAdaptorBase
: public Object
{
public:
/** Standard class typedefs. */
typedef TransformParametersAdaptorBase Self;
typedef Object Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Run-time type information (and related methods). */
itkTypeMacro( TransformParametersAdaptorBase, Object );
/** Typedefs associated with the transform */
typedef TTransform TransformBaseType;
typedef typename TransformBaseType::Pointer TransformBasePointer;
typedef typename TransformBaseType::ParametersType ParametersType;
typedef typename ParametersType::ValueType ParametersValueType;
typedef typename TransformBaseType::FixedParametersType FixedParametersType;
typedef typename TransformBaseType::FixedParametersValueType FixedParametersValueType;
// note: the void pointer is use to ensure this method has lower
// overloaded priority and avoid an ambiguous overloaded method
virtual void SetTransform( TransformBaseType *_arg, void * priorityLower = ITK_NULLPTR ) = 0;
/** Set the fixed parameters */
itkSetMacro( RequiredFixedParameters, FixedParametersType );
/** Get the fixed parameters */
itkGetConstReferenceMacro( RequiredFixedParameters, FixedParametersType );
/** Initialize the transform using the specified fixed parameters */
virtual void AdaptTransformParameters() = 0;
protected:
TransformParametersAdaptorBase() {}
~TransformParametersAdaptorBase() ITK_OVERRIDE {}
virtual void PrintSelf( std::ostream & os, Indent indent ) const ITK_OVERRIDE
{
Superclass::PrintSelf( os, indent );
os << "Fixed parameters" << this->m_RequiredFixedParameters << std::endl;
}
FixedParametersType m_RequiredFixedParameters;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(TransformParametersAdaptorBase);
}; //class TransformParametersAdaptorBase
} // namespace itk
#endif /* itkTransformParametersAdaptorBase_h */
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