/usr/include/ITK-4.5/itkCompositeTransformIOHelper.h is in libinsighttoolkit4-dev 4.5.0-3.
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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 __itkCompositeTransformIOHelper_h
#define __itkCompositeTransformIOHelper_h
#include "itkTransformIOBase.h"
#include "itkCompositeTransform.h"
namespace itk
{
/** \class CompositeTransformIOHelperTemplate
* \brief An adapter that adapts CompositeTransform into the
* TransformReader/Writer
*
* The stumbling block with fitting CompositeTransforms into
* the Transform hierarchy is that it encapsulates a list of
* itk::Transform, templated to match the dimension and scalar
* type of the CompositeTransform itself. But the Transform
* Reader/Writer uses instances of the superclass itk::TransformBase
* which is not templated.
*
* This class handles this by hiding the conversion between a list
* of TransformBase and the queue of Transform. It handles the
* conversion in a cascade of template function invocations to
* match up the transform list with the particular instantiation
* of CompositeTransform.
* \ingroup ITKIOTransformBase
*/
template <typename TScalar>
class CompositeTransformIOHelperTemplate
{
public:
typedef typename TransformIOBaseTemplate<TScalar>::TransformType TransformType;
typedef typename TransformIOBaseTemplate<TScalar>::TransformPointer TransformPointer;
typedef typename TransformIOBaseTemplate<TScalar>::TransformListType TransformListType;
typedef typename TransformIOBaseTemplate<TScalar>::ConstTransformPointer ConstTransformPointer;
typedef typename TransformIOBaseTemplate<TScalar>::ConstTransformListType ConstTransformListType;
/** from a composite transform, recover a
* TransformIOBase::ConstTransformList.
* This will re-build the list each time it is called, so it is best
* to call it once per CompositeTransform and access it through the
* ConstTransformListType reference, as any subsequent calls will
* rebuild the list and possibly invalidate any iterators on the
* list.
*/
ConstTransformListType &GetTransformList(const TransformType *transform);
/** set a compositeTransform's transform list from a
** TransformIOABase::TransformList. If there is any mismatch
** between a transform being added to composite and the composite,
** this will throw an exception
*/
void SetTransformList(TransformType *transform,TransformListType &transformList);
private:
ConstTransformListType m_TransformList;
/** Builds a list of TransformBase from the CompositeTransform's
** queue. A cascade of calls with different template parameters
** selects the correct concrete type for CompositeTransform.
*/
template <unsigned TDim>
int BuildTransformList(const TransformType *transform);
/** Sets a CompositeTransform's TransformQueue from the
** TransformIO's list of TransformBase. Will throw an exception
** if the scalar type or dimension of the transform being added
** doesn't match that of the concrete CompositeTransform's type.
*/
template <unsigned TDim>
int InternalSetTransformList(TransformType *transform,TransformListType &transformList);
};
/** This helps to meet backward compatibility */
typedef CompositeTransformIOHelperTemplate<double> CompositeTransformIOHelper;
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkCompositeTransformIOHelper.hxx"
#endif
#endif // __itkCompositeTransformIOHelper_h
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