sitkScaleTransform.h

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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
*
*         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 sitkScaleTransform_h
#define sitkScaleTransform_h
 
#include "sitkCommon.h"
#include "sitkTransform.h"
 
namespace itk::simple
{
 
class SITKCommon_EXPORT ScaleTransform
  : public Transform
{
public:
  using Self = ScaleTransform;
  using Superclass = Transform;
 
  ~ScaleTransform() override;
 
  explicit ScaleTransform(unsigned int dimensions,
                          const std::vector<double> &scale = std::vector<double>(3,1.0) );
 
  ScaleTransform( const ScaleTransform & );
 
  explicit ScaleTransform( const Transform & );
 
  std::string GetName() const override { return std::string ("ScaleTransform"); }
 
  ScaleTransform &operator=( const ScaleTransform & );
 
 
  SITK_RETURN_SELF_TYPE_HEADER SetScale(const std::vector<double> &params);
  std::vector<double> GetScale( ) const;
 
  SITK_RETURN_SELF_TYPE_HEADER SetCenter(const std::vector<double> &params);
  std::vector<double> GetCenter( ) const;
 
  std::vector<double> GetMatrix() const;
 
protected:
 
  void SetPimpleTransform(std::unique_ptr<PimpleTransformBase> && pimpleTransform ) override;
 
private:
 
  struct MyVisitor
  {
    itk::TransformBase *transform;
    ScaleTransform *that;
    template< typename TransformType >
    void operator() ( ) const
      {
        TransformType *t = dynamic_cast<TransformType*>(transform);
        if (t && (typeid(*t) == typeid(TransformType)))
          {
          that->InternalInitialization<TransformType>(t);
          }
      }
  };
 
  void InternalInitialization(itk::TransformBase *transform);
 
  template <typename TransformType>
    void InternalInitialization(TransformType *transform);
 
 
  std::function<void(std::vector<double>)> m_pfSetCenter;
  std::function<std::vector<double>()> m_pfGetCenter;
  std::function<void(std::vector<double>)> m_pfSetScale;
  std::function<std::vector<double>()> m_pfGetScale;
  std::function<std::vector<double>()> m_pfGetMatrix;
 
 
};
 
}
 
#endif // sitkScaleTransform_h