rtkRayConvexIntersectionImageFilter.h

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/*=========================================================================
 *
 *  Copyright RTK 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
 *
 *         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 rtkRayConvexIntersectionImageFilter_h
#define rtkRayConvexIntersectionImageFilter_h

#include <itkInPlaceImageFilter.h>
#include "rtkConfiguration.h"
#include "rtkThreeDCircularProjectionGeometry.h"
#include "rtkConvexShape.h"

namespace rtk
{

template <class TInputImage, class TOutputImage>
class ITK_TEMPLATE_EXPORT RayConvexIntersectionImageFilter : public itk::InPlaceImageFilter<TInputImage, TOutputImage>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(RayConvexIntersectionImageFilter);

  using Self = RayConvexIntersectionImageFilter;
  using Superclass = itk::InPlaceImageFilter<TInputImage, TOutputImage>;
  using Pointer = itk::SmartPointer<Self>;
  using ConstPointer = itk::SmartPointer<const Self>;

  using OutputImageRegionType = typename TOutputImage::RegionType;
  using GeometryType = rtk::ThreeDCircularProjectionGeometry;
  using GeometryConstPointer = typename GeometryType::ConstPointer;
  using ConvexShapePointer = ConvexShape::Pointer;
  using ScalarType = ConvexShape::ScalarType;
  using PointType = ConvexShape::PointType;

  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(RayConvexIntersectionImageFilter);

  itkGetModifiableObjectMacro(ConvexShape, ConvexShape);
  itkSetObjectMacro(ConvexShape, ConvexShape);

  itkGetConstObjectMacro(Geometry, GeometryType);
  itkSetConstObjectMacro(Geometry, GeometryType);

  itkGetMacro(Attenuation, double);
  itkSetMacro(Attenuation, double);

protected:
  RayConvexIntersectionImageFilter();
  ~RayConvexIntersectionImageFilter() override = default;

  void
  BeforeThreadedGenerateData() override;

  void
  VerifyPreconditions() const override;

  void
  DynamicThreadedGenerateData(const OutputImageRegionType & outputRegionForThread) override;

private:
  ConvexShapePointer   m_ConvexShape;
  GeometryConstPointer m_Geometry;
  double               m_Attenuation = 0.;
};

} // end namespace rtk

#ifndef ITK_MANUAL_INSTANTIATION
#  include "rtkRayConvexIntersectionImageFilter.hxx"
#endif

#endif