itkSphereSpatialFunction.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
 *
 *         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 itkSphereSpatialFunction_h
#define itkSphereSpatialFunction_h
 
#include "itkInteriorExteriorSpatialFunction.h"
 
namespace itk
{
template <unsigned int VImageDimension = 3, typename TInput = Point<double, VImageDimension>>
class ITK_TEMPLATE_EXPORT SphereSpatialFunction : public InteriorExteriorSpatialFunction<VImageDimension, TInput>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(SphereSpatialFunction);

  using Self = SphereSpatialFunction<VImageDimension, TInput>;
  using Superclass = InteriorExteriorSpatialFunction<VImageDimension, TInput>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;

  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(SphereSpatialFunction);

  using typename Superclass::InputType;

  using typename Superclass::OutputType;

  OutputType
  Evaluate(const InputType & position) const override;

  itkGetConstMacro(Center, InputType);
  itkSetMacro(Center, InputType);

  itkGetConstMacro(Radius, double);
  itkSetMacro(Radius, double);
 
protected:
  SphereSpatialFunction() = default;
  ~SphereSpatialFunction() override = default;
  void
  PrintSelf(std::ostream & os, Indent indent) const override;
 
private:
  InputType m_Center{};

  double m_Radius{ 1.0 };
};
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkSphereSpatialFunction.hxx"
#endif
 
#endif