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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkSphereSignedDistanceFunction.h,v $
Language: C++
Date: $Date: 2007-01-30 20:56:09 $
Version: $Revision: 1.7 $
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef __itkSphereSignedDistanceFunction_h
#define __itkSphereSignedDistanceFunction_h
#include "itkShapeSignedDistanceFunction.h"
#include "itkVector.h"
namespace itk
{
/** \class SphereSignedDistanceFunction
* \brief Compute the signed distance from a N-dimensional sphere.
*
* A instance of sphere is defined by a set parameters. The first parameter
* is the radius and the next SpaceDimension parameters represent the center.
* The first parameter forms the set of ShapeParameters and the remaining
* parameters the set of PoseParameters.
*
* This class is templated over the coordinate representation type
* (e.g. float or double) and the space dimension.
*
* \sa ShapeSignedDistanceFunction
* \ingroup ImageFunctions
*
* */
template <typename TCoordRep, unsigned int VSpaceDimension>
class ITK_EXPORT SphereSignedDistanceFunction :
public ShapeSignedDistanceFunction< TCoordRep, VSpaceDimension >
{
public:
/** Standard class typedefs. */
typedef SphereSignedDistanceFunction Self;
typedef ShapeSignedDistanceFunction< TCoordRep, VSpaceDimension > Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
/** Run-time type information (and related methods). */
itkTypeMacro(SphereSignedDistanceFunction, ShapeSignedDistancFunction);
/** New macro for creation of through the object factory.*/
itkNewMacro( Self );
/** OutputType typedef support. */
typedef typename Superclass::OutputType OutputType;
/** InputeType typedef support. */
typedef typename Superclass::InputType InputType;
/** Dimension underlying input image. */
itkStaticConstMacro(SpaceDimension, unsigned int, Superclass::SpaceDimension);
/** CoordRep typedef support. */
typedef typename Superclass::CoordRepType CoordRepType;
/** Point typedef support. */
typedef typename Superclass::PointType PointType;
/** Type of the shape parameters. */
typedef typename Superclass::ParametersType ParametersType;
/** A sphere is defined by a set of shape parameters. The first parameter
* is the radius and the next SpaceDimension parameters represent the center. */
virtual void SetParameters( const ParametersType & );
virtual unsigned int GetNumberOfShapeParameters(void) const
{ return 1; }
virtual unsigned int GetNumberOfPoseParameters(void) const
{ return SpaceDimension; }
/** Evaluate the signed distance from a shape at a given position. */
virtual OutputType Evaluate( const PointType& point ) const;
protected:
SphereSignedDistanceFunction();
~SphereSignedDistanceFunction(){};
void PrintSelf(std::ostream& os, Indent indent) const;
private:
SphereSignedDistanceFunction( const Self& ); //purposely not implemented
void operator=( const Self& ); //purposely not implemented
typedef Vector<CoordRepType,itkGetStaticConstMacro(SpaceDimension)> VectorType;
VectorType m_Translation;
double m_Radius;
};
} // end namespace itk
// Define instantiation macro for this template.
#define ITK_TEMPLATE_SphereSignedDistanceFunction(_, EXPORT, x, y) namespace itk { \
_(2(class EXPORT SphereSignedDistanceFunction< ITK_TEMPLATE_2 x >)) \
namespace Templates { typedef SphereSignedDistanceFunction< ITK_TEMPLATE_2 x > \
SphereSignedDistanceFunction##y; } \
}
#if ITK_TEMPLATE_EXPLICIT
# include "Templates/itkSphereSignedDistanceFunction+-.h"
#endif
#if ITK_TEMPLATE_TXX
# include "itkSphereSignedDistanceFunction.txx"
#endif
#endif
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