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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 itkSphereSpatialFunction_h
#define itkSphereSpatialFunction_h
#include "itkInteriorExteriorSpatialFunction.h"
namespace itk
{
/** \class SphereSpatialFunction
* \brief Spatial function implementation of a sphere
*
* Implements a function that returns 0 for points inside or on the surface
* of a sphere, 1 for points outside the sphere
*
* \ingroup SpatialFunctions
* \ingroup ITKCommon
*/
template< unsigned int VImageDimension = 3, typename TInput = Point< double, VImageDimension > >
class ITK_TEMPLATE_EXPORT SphereSpatialFunction:
public InteriorExteriorSpatialFunction< VImageDimension, TInput >
{
public:
/** Standard class typedefs. */
typedef SphereSpatialFunction< VImageDimension, TInput > Self;
typedef InteriorExteriorSpatialFunction< VImageDimension, TInput > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(SphereSpatialFunction, InteriorExteriorSpatialFunction);
/** Input type for the function. */
typedef typename Superclass::InputType InputType;
/** Output type for the function. */
typedef typename Superclass::OutputType OutputType;
/** Evaluates the function at a given position */
OutputType Evaluate(const InputType & position) const ITK_OVERRIDE;
/** Get and set the center of the sphere. */
itkGetConstMacro(Center, InputType);
itkSetMacro(Center, InputType);
/** Get and set the radius of the sphere */
itkGetConstMacro(Radius, double);
itkSetMacro(Radius, double);
protected:
SphereSpatialFunction();
virtual ~SphereSpatialFunction() ITK_OVERRIDE;
void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(SphereSpatialFunction);
/** The center of the sphere (of the same type as Input). */
InputType m_Center;
/** The radius of the sphere. */
double m_Radius;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkSphereSpatialFunction.hxx"
#endif
#endif
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